CN107044341A - Two-phase balance end tooth wheel cam type internal combustion engine - Google Patents
Two-phase balance end tooth wheel cam type internal combustion engine Download PDFInfo
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- CN107044341A CN107044341A CN201710101694.1A CN201710101694A CN107044341A CN 107044341 A CN107044341 A CN 107044341A CN 201710101694 A CN201710101694 A CN 201710101694A CN 107044341 A CN107044341 A CN 107044341A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B75/00—Other engines
- F02B75/32—Engines characterised by connections between pistons and main shafts and not specific to preceding main groups
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B75/00—Other engines
- F02B75/02—Engines characterised by their cycles, e.g. six-stroke
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B75/00—Other engines
- F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
- F02B75/18—Multi-cylinder engines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H49/00—Other gearings
- F16H49/001—Wave gearings, e.g. harmonic drive transmissions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B75/00—Other engines
- F02B75/02—Engines characterised by their cycles, e.g. six-stroke
- F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
- F02B2075/027—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle four
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B75/00—Other engines
- F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
- F02B75/18—Multi-cylinder engines
- F02B2075/1804—Number of cylinders
- F02B2075/1832—Number of cylinders eight
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transmission Devices (AREA)
Abstract
Two-phase balance end tooth wheel cam type internal combustion engine, is related to gas power field, belongs to multi-cylinder engine.The present invention provides a kind of internal combustion engine, and piston is acted on the gear cam of end by push rod and universal ball component, and power is transmitted to the output shaft with slot type two-phase balance shock wave device key connecting by end gear cam through slot type two teeth difference balance movable tooth drive mechanism.End gear cam unites two into one internal combustion engine and slot type two-phase balance end gear-cam mechanism, make internal combustion engine without separately matching somebody with somebody speed increaser, and eliminate the crankshaft connecting rod system in crankshaft-link rod type internal combustion engine, quality, each internal force autobalance without acceptance of persons in internal combustion engine, steel ball and end gear cam, between oscillating tooth carrier and slot type two-phase balance shock wave device be it is multiple tooth engage, all cylinders are axial arranged.Therefore the simple compact, small volume of the Structure of Internal-Combustion Engine, registration are big, bearing capacity is strong, can be widely used for needing high rotating speed, powerful field, small generator, helicopter engine etc..
Description
Technical field
It is a kind of two-phase balance end tooth wheel cam type internal combustion engine more specifically the present invention relates to gas power field.
Background technology
The use of more universal internal combustion engine is at present reciprocating four-stroke crankshaft-link rod type internal combustion engine, the transmission of this internal combustion engine
Structure all use crankshaft connecting rod system, by connecting rod band dynamic crankshaft so that by the transform linear motion of piston be bent axle rotation
Motion.Bent axle is driven to rotate because this internal combustion engine is the plane motion by the linear motion and connecting rod of piston, from
And cause to there is larger friction between each kinematic pair, cause internal combustion engine transmission efficiency low.Crankshaft-link rod type internal combustion engine also has
Following major defect：Volume is big；Uneven centrifugal force on connecting rod, bent axle is larger；Impact is big, and vibration is big；And thus cause compared with
Big mechanical wear, shortens internal-combustion engine life-span；Complicated, processing, manufacture, assembling etc. are all relatively difficult.
In addition, generally internal combustion engine and speed change gear are two independent machines, internal combustion engine needs additionally mounted decelerator to be used for
Follow-up speed change, causes bulky.
The content of the invention
The purpose of the present invention is：To overcome the drawbacks described above that existing reciprocating four-stroke crankshaft-link rod type internal combustion engine is present,
The present invention provides that a kind of simple and compact for structure, small volume, smooth running, power is big, in long lifespan, the stroke of the high speed of efficiency high four
Combustion engine --- two-phase balance end tooth wheel cam type internal combustion engine.
The present invention is adopted the technical scheme that to solve its technical problem：A kind of two-phase balance end tooth wheel cam-type internal combustion
Machine, mainly by cylinder head (1), exhaust valve (2), inlet valve (3), cylinder (4), cylinder body (5), push rod (6), piston (7), spring
(8), universal ball component (9), end gear cam (10), steel ball (11), oscillating tooth carrier (12), slot type two-phase balance shock wave device (13),
Output shaft (14), sealing ring (15), output end bearing cover (16), deep groove ball bearing (17), sleeve (18), thrust ball bearing
(19), key (20), nut (21), bolt (22), cylinder end bearing cover (23), housing (24), deep groove ball bearing (25) and starting
System, air distribution system, cooling system, oil supply system, lubricating system composition, it is characterised in that：With slot type two-phase balance end tooth wheel
Cam mechanism replaces the crankshaft connecting rod system in existing crankshaft-link rod type internal combustion engine, and eight are set on the right of end gear cam (10)
Individual cylinder (4), the top of eight cylinders (4) is located normal in the same plane of the axis of output shaft (14), all cylinders (4)
Axial line be parallel to the axis of output shaft (14), and, eight pistons equidistant, circumferential uniform with the axis of output shaft (14)
(7) it is respectively put into eight cylinders (4), the axial left and right linear reciprocating motion of piston (7) is convex through slot type two-phase balance end tooth wheel
Turbine allosteric transformation is the rotary motion of output shaft (14), and end gear cam (10) is convex by internal combustion engine and slot type two-phase balance end tooth wheel
Wheel mechanism organically combines together, makes internal combustion engine without optional equipment speed increaser again.Above-mentioned slot type two-phase balance end gear cam
Mechanism is organically combined by the phase cam mechanism of multi-directional ball slot type four and slot type two teeth difference balance movable tooth drive mechanism；Wherein,
The phase cam mechanism of multi-directional ball slot type four is made up of end gear cam (10), universal ball component (9), push rod (6), and the one of push rod (6)
End is fixedly connected with piston (7), and the other end is equipped with universal ball component (9) by thread connection, and universal ball component (9) makes push rod
(6) coupling between the slot type cam with holding gear cam (10) right-hand member couples for rolling friction, changes existing reciprocating interior
Hinge-coupled relation in combustion engine between piston and connecting rod, connecting rod and bent axle, so that transmission efficiency is greatly improved, spring (8)
One end couple with piston (7), the other end couples with the bottom of cylinder (4), and spring (8) makes the universal ball component on push rod (6)
(9) keep contacting with the slot type cam for holding gear cam (10) right-hand member all the time, end gear cam (10) passes through deep groove ball bearing
(25) it is supported on output shaft (14).Slot type two teeth difference balance movable tooth drive mechanism is by end gear cam (10), steel ball (11), work
Braces (12), slot type two-phase balance shock wave device (13), wherein output shaft (14) composition, oscillating tooth carrier (12) and cylinder body (5) and housing
(24) connected firmly, coupled between slot type two-phase balance shock wave device (13) and output shaft (14) by key (20) by bolt (22), it is defeated
Shaft (14) is respectively supported at housing (24) and cylinder body (5) by a pair of deep groove ball bearings (17) and a thrust ball bearing (19)
In, thrust ball bearing (19) has carried out axial restraint, output shaft to slot type two-phase balance shock wave device (13) and output shaft (14)
(14), end gear cam (10), the axial line of (13) four parts of oscillating tooth carrier (12) and slot type two-phase balance shock wave device are overlapped；Steel
The number Z of ball (11)11With the tooth number Z of end gear cam (10)10Differ as 2；Z is provided with oscillating tooth carrier (12)11Individual axial direction leads to
Hole, this Z11The axis of individual axially extending bore and the diameter parallel of oscillating tooth carrier (12), and it is equidistant and all on the axis of oscillating tooth carrier (12)
To uniform, Z11Individual steel ball (11) is attached separately to the Z of oscillating tooth carrier (12)11Individual radius and steel ball (11) radius identical axially extending bore
It is interior and can freely be axially moved；Steel ball (11) and end gear cam (10), slot type two-phase balance shock wave device (13) and oscillating tooth carrier
(12) while keeping engagement contact；In slot type two teeth difference balance movable tooth drive mechanism, the track of the geometric center of steel ball (11)
It is a cylinder surface curve, the cylinder where the curve is referred to as the indexing cylinder of slot type two teeth difference balance movable tooth drive mechanism, is also
The indexing cylinder of slot type two-phase balance end gear-cam mechanism, is also the indexing cylinder for holding gear cam (10), the axle of the cylinder
Line is overlapped with the axis of output shaft (14)；The axial line of eight cylinders (4) is all in slot type two-phase balance end gear-cam mechanism
On reference cylinder parallel to output shaft (14) axial line and be evenly distributed；The right-hand member for holding gear cam (10) is axle center pair
Claim the circumferential equally distributed phase cam of cylindrical shape slot type four, the shape of the profile of the four phases cam on above-mentioned reference cylinder is
Four identical axially projecting portions, the corresponding central angle of each projection is 90 degree, and the guide groove section of the four phases cam is
The radius identical circular arc of radius and the steel ball (26) in universal ball component (9), can axially be transported by choosing appropriate piston (7)
Dynamic rule determines the axial profile curve of the four phases cam, so that internal combustion engine obtains optimal dynamic property, economy and discharge
Index；It is symmetrical that axle center is circumferentially provided with the right-hand member of slot type two-phase balance shock wave device (13) and the left end of end gear cam (10)
Circumferential equally distributed guide groove, the two circumferential guide groove is in oscillating tooth carrier (12) while steel ball (11) is rotated with oscillating tooth carrier (12)
A series of envelope surface of residing positions when being moved in axially extending bore, the shape of the two circumferential guide grooves in shaft section is all round
Arc, the radius of circular arc is identical with the radius of steel ball (11), and the track of the two circumferential guide groove is cosine function curve along the face of cylinder
Distribution, wherein the cosine function periodicity of the circumferential guide groove track of end gear cam (10) left end is equal to end gear cam (10)
Tooth number Z10, end gear cam (10) left end is the end tooth wheel in slot type two teeth difference balance movable tooth drive mechanism, and slot type two-phase is put
The cosine function periodicity of the circumferential guide groove track of disk shock wave device (13) right-hand member is equal to the axle of slot type two-phase balance shock wave device (13)
To wave amplitude number 2, i other words the right-hand member of slot type two-phase balance shock wave device (13) is slot type two-phase cam, the profile of the two-phase cam exists
Shape on above-mentioned reference cylinder is two identical axially projecting portions, and the corresponding central angle of each projection is
180°；End gear cam (10) is both the cam in the phase cam mechanism of multi-directional ball slot type four, is slot type two teeth difference balance oscillating tooth again
End tooth wheel in transmission mechanism, makes inventive combustion engine compact conformation.In above-mentioned eight cylinders (4) any two be separated by 180 ° it is right
Claim piston (7) working condition of arrangement synchronous, using two synchronous pistons (7) of working condition as one group, four groups of pistons (7) according to
Secondary progress intake stroke, compression stroke, gas work by combustion stroke and exhaust stroke, two adjacent groups cylinder (4) differ a punching
Journey, the phase difference corresponding to end gear cam (10) corner is 45 °.The axial straight reciprocating motion that piston (7) passes through push rod (6)
So that end gear cam (10) rotation, power is transmitted to defeated by end gear cam (10) through slot type two teeth difference balance movable tooth drive mechanism
Shaft (14), last power is exported by output shaft (14).
In above-mentioned slot type two teeth difference balance movable tooth drive mechanism, steel ball (11) and end gear cam (10), oscillating tooth carrier (12)
It is multiple tooth engagement between slot type two-phase balance shock wave device (13), and contact area is big, therefore high-power transmission can be realized.
Other NM places of inventive combustion engine use prior art.
Compared with the prior art primary object of the invention is：
1. the crankshaft-link rod machine in existing crankshaft-link rod type internal combustion engine is replaced with slot type two-phase balance end gear-cam mechanism
Structure, technical field of internal combustion engines is introduced by Oscillating Tooth Gear Reducer technology, not only thoroughly eliminates crankshaft-and-connecting-rod, and an axially left side for piston
Right linear reciprocating motion is changed into the rotary motion of output shaft through slot type two-phase balance end gear-cam mechanism, and end gear cam will
Internal combustion engine and slot type two-phase balance end gear-cam mechanism organically combine together, internal combustion engine is closed with speed change gear (speed increaser)
Two be one, and without separately matching somebody with somebody speed change gear, structure reduces significantly, has obtained a kind of compact conformation, compact novel high rotary speed power
Machine, the axial arranged design of cylinder also greatly reduces internal combustion engine radial dimension.
2. slot type two-phase balance end gear-cam mechanism is by the phase cam mechanism of multi-directional ball slot type four and slot type two teeth difference balance
Movable tooth drive mechanism is organically combined；Wherein, the phase cam mechanism of multi-directional ball slot type four is by end gear cam, multi-directional ball group
Part, push rod composition, one end and the piston of push rod are fixedly connected, and the other end is equipped with universal ball component, multi-directional ball by thread connection
Component make push rod and hold gear cam right-hand member slot type cam between couple for rolling friction connection, change existing reciprocating
Hinge-coupled relation in internal combustion engine between piston and connecting rod, connecting rod and bent axle, so that transmission efficiency is greatly improved, spring
One end couples with piston, and the other end couples with the bottom of cylinder, and spring makes the universal ball component on push rod convex with end tooth wheel all the time
The slot type cam for taking turns right-hand member keeps contact, and end gear cam is supported on output shaft by deep groove ball bearing.Slot type two teeth difference is put
Disk movable tooth drive mechanism is made up of end gear cam, steel ball, oscillating tooth carrier, slot type two-phase balance shock wave device, output shaft, wherein oscillating tooth
Frame is connected firmly with cylinder body and housing by bolt, by key connecting between slot type two-phase balance shock wave device and output shaft, and output shaft leads to
Cross a pair of deep groove ball bearings and a thrust ball bearing is respectively supported in housing and cylinder body, thrust ball bearing is put to slot type two-phase
Disk shock wave device and output shaft have carried out axial restraint, output shaft, end gear cam, oscillating tooth carrier and slot type two-phase balance shock wave device four
The axial line of individual part is overlapped；Z is provided with oscillating tooth carrier11Individual axially extending bore, this Z11The axis of individual axially extending bore and oscillating tooth carrier
Diameter parallel, and, Z equidistant and circumferential uniform on the axis of oscillating tooth carrier11Individual steel ball is attached separately to the Z of oscillating tooth carrier11Individual radius with
Its radius identical axially extending bore is interior and can freely be axially moved；The number Z of steel ball11With the tooth number Z of end gear cam10Phase
Difference is 2；Z11Individual steel ball keeps engagement to contact simultaneously with end gear cam, slot type two-phase balance shock wave device and oscillating tooth carrier；Oscillating tooth carrier
The track of the geometric center of middle steel ball is a cylinder surface curve, and the cylinder where the curve is referred to as slot type two teeth difference balance oscillating tooth biography
The indexing cylinder of motivation structure, is also the indexing cylinder of slot type two-phase balance end gear-cam mechanism, is also point for holding gear cam
Cylinder is spent, the axis of the cylinder is overlapped with the axis of output shaft；The axial line of eight cylinders is all in slot type two-phase balance end tooth wheel
On the reference cylinder of cam mechanism parallel to output shaft axial line and be evenly distributed；The right-hand member for holding gear cam is axle center
The symmetrical circumferential equally distributed phase cam of cylindrical shape slot type four, the shape of the profile of the four phases cam on above-mentioned reference cylinder
It is four identical axially projecting portions, the corresponding central angle of each projection is 90 degree, the guide groove section of the four phases cam
For radius and the radius identical circular arc of universal ball component steel ball, it can be determined by choosing the axial characteristics of motion of appropriate piston
The axial profile curve of the four phases cam, so that internal combustion engine obtains optimal dynamic property, economy and discharge index；In slot type two
The right-hand member of phase balance shock wave device and the left end of end gear cam are circumferentially provided with the symmetrical circumferential equally distributed guide groove in axle center, should
Two circumferential guide grooves are
The envelope surface of column position, the shape of the two circumferential guide grooves in shaft section is all circular arc, and the track of the two circumferential guide groove is remaining
Distribution of the string function curve along the face of cylinder, wherein the cosine function periodicity of the circumferential guide groove track of end gear cam left end is equal to
Hold the tooth number Z of gear cam10, end gear cam left end is the end tooth wheel in slot type two teeth difference balance movable tooth drive mechanism, and groove
The cosine function periodicity of the circumferential guide groove track of formula two-phase balance shock wave device right-hand member is equal to the axle of slot type two-phase balance shock wave device
To wave amplitude number 2, i other words the right-hand member of slot type two-phase balance shock wave device is slot type two-phase cam, the profile of the two-phase cam is above-mentioned
Shape on reference cylinder is two identical axially projecting portions, and the corresponding central angle of each projection is 180 °；End
Gear cam is both the cam in the phase cam mechanism of multi-directional ball slot type four, in being again slot type two teeth difference balance movable tooth drive mechanism
End tooth wheel, makes inventive combustion engine compact conformation.
3. any two is separated by the 180 ° of pistons work being arranged symmetrically state synchronizeds in eight cylinders, and working condition is synchronous
Two pistons as one group, four groups of pistons carry out intake stroke, compression stroke, gas work by combustion stroke and exhaust punching successively
Journey, two adjacent groups cylinder differs a stroke, and the phase difference corresponding to end tooth wheel cam angle is 45 °.Piston passes through push rod
Axial straight reciprocating motion causes end gear cam rotation, and end gear cam is by power through slot type two teeth difference balance Oscillating Tooth Gear Reducer machine
Structure is transmitted to output shaft, and last power is exported by output shaft.
4. in slot type two teeth difference balance movable tooth drive mechanism, steel ball and end gear cam, oscillating tooth carrier and slot type two-phase balance
It is multiple tooth engagement between shock wave device, and contact area is big, therefore high-power transmission can be realized.
It is of the invention compared with existing reciprocating four-stroke crankshaft-link rod type internal combustion engine, with following beneficial technique effect：
1. the small, noise of vibration is small, smooth running
Because inventive combustion engine is replaced in existing crankshaft-link rod type internal combustion engine using slot type two-phase balance end gear-cam mechanism
Crankshaft connecting rod system, completely abolished crankshaft-and-connecting-rod, slot type two-phase balance end gear-cam mechanism is axial symmetry and center
Symmetrical structure, without eccentric mass and out-of-balance force, eliminates the inertia caused by crankshaft quality bias, connecting rod make plane motion
Power and tilting moment and resulting impact shock and noise, eliminating connecting rod beat causes Piston impinging cylinder wall to cause
Vibration and noise, internal combustion engine operation is steady.] inventive combustion engine eight cylinders be it is axially placed, circumferentially uniform point
Cloth, any two of which is separated by the 180 ° of pistons work being arranged symmetrically state synchronizeds, i.e.,：Simultaneously air-breathing or simultaneously compression or
Gas work by combustion or it is vented simultaneously simultaneously, therefore, impulsive force always occurs in pairs, all axial forces, radial direction in internal combustion engine
The all internal automatic balance of cancelling out each other of power, internal combustion engine operation is steady.
2. it is compact conformation, small volume, lightweight
Inventive combustion engine uses the design of axial arranged cylinder, significantly decreases the radial dimension of complete machine；Cancel heavy multiple
The slot type two-phase balance end gear-cam mechanism of miscellaneous crankshaft connecting rod system, instead compact conformation, the mechanism by internal combustion engine with
Speed change gear (speed increaser) is united two into one, and without separately matching somebody with somebody speeder, structure is significantly reduced, and slot type two-phase balance end tooth wheel
The axial dimension of cam mechanism is small.Therefore it is inventive combustion engine compact conformation, small volume, lightweight.
3. transmission is smaller, complete machine integration speedup, speedy carding process
The power output shaft of inventive combustion engine is connected firmly with slot type two-phase balance shock wave device, slot type two teeth difference balance Oscillating Tooth Gear Reducer machine
Structure is to hold gear cam input power, and oscillating tooth carrier is fixed, and slot type two-phase balance shock wave device output, output rotating speed depends on slot type
The gearratio of two teeth difference balance movable tooth drive mechanism, and suitably select slot type two teeth difference balance movable tooth drive mechanism match somebody with somebody tooth side
Case, it is possible to achieve less gearratio, and many advantages, such as remain in that small compact conformation, quality, small volume.Internal combustion engine is high
Speed output power, can be widely applied to high-revolving field, small generator, helicopter engine etc..Higher rotating speed
Output, in the timing of demand rotating speed one, can greatly reduce the discharge of pernicious gas, reach the purpose of energy-saving and emission-reduction.
4. fretting wear is small, oil consumption is low, efficiency high, long lifespan
In inventive combustion engine, between universal ball component and end gear cam, steel ball and end gear cam and oscillating tooth carrier and groove
It is rolling friction connection between formula two-phase balance shock wave device, eliminates the big crankshaft connecting rod system of serious wear, friction power loss,
Transmission efficiency.In slot type two teeth difference balance movable tooth drive mechanism, steel ball is put with end gear cam, oscillating tooth carrier and slot type two-phase
It is multiple tooth engagement between disk shock wave device, and contact area is big, therefore large carrying capacity, high-speed high-power output can be achieved.Simultaneously
Slot type two-phase balance end gear-cam mechanism can realize two-phase shock wave and ensure that the stress of its own and its internal oscillating tooth is automatic
Balance, is not present inertia force, exciting force and tilting moment present in the poor Oscillating Tooth Gear Reducer of a tooth etc., from transmission in transmission device
The vibrational excitation of transmission device is avoided in principle, so as to be conducive to improving the efficiency being driven, mechanical friction abrasion is also smaller, oil
Consumption is low, and internal-combustion engine life-span is longer.
5. optimization property is strong
The guide groove trajectory curve equation of slot type two-phase balance shock wave device and the slot type cam on the gear cam of end is cosine function,
And curvilinear equation form is simply consistent, beneficial to optimization design.Because the characteristics of motion of piston depends entirely on end gear cam
Guide groove geometric locus, so cam contour can be designed by choosing appropriate piston movement rule, and appropriate piston movement
Rule can make gas in cylinder abundant, perfect, fuel thermal energy utilization rate of burning high.
6. simple in construction, good manufacturability, production cost are low
Design of part in inventive combustion engine is simple, good manufacturability, production cost are low, has completely abolished complicated, processing
Difficult crankshaft-and-connecting-rod is manufactured, more using the highly versatiles such as steel ball, multi-directional ball, the standardized element manufactured by specialized vendor, and
The radius of steel ball in universal ball component is identical with the radius of the steel ball in oscillating tooth carrier, therefore slot type two-phase balance shock wave device and end tooth
The guide groove section arc radius all same of slot type cam structure at three on cam is taken turns, a set of processing technology and knife can be shared
Tool, conveniently manufactures and reduces cost.
Brief description of the drawings
The invention will be further described with reference to the accompanying drawings and examples.But will be it is emphasized that the tool of the present invention
Body embodiment is not limited to the form described by example below, and those skilled in the art is not paying creative work
In the case of, other embodiments can be also easily designed, therefore should not be by embodiment given below
Embodiment be interpreted as protection scope of the present invention, protection scope of the present invention is limited in given embodiment.
Fig. 1 is the structural representation of two-phase balance end tooth wheel cam type internal combustion engine
Fig. 2 is Fig. 1 A-A sectional views
Fig. 3 is the front view and left and right view for holding gear cam
The structural representation of Fig. 4 slot type two-phase balance shock wave devices
Fig. 5 is the structural representation of oscillating tooth carrier
Fig. 6 is the structural representation of universal ball component
Fig. 7 is the indexing along its slot type two-phase balance end gear-cam mechanism of two-phase balance end tooth wheel cam type internal combustion engine
The section expanded schematic diagram on the face of cylinder
Fig. 8 is the threedimensional model for holding gear cam
Fig. 9 is the schematic cross-section on its reference cylinder for holding gear cam
Figure 10 is the threedimensional model and guide groove geometric locus figure of slot type two-phase balance shock wave device
The mark object of figure knowledge label is in above-mentioned each accompanying drawing：1 cylinder head；2 exhaust valves；3 inlet valves；4 cylinders；5 cylinder bodies；
6 push rods；7 pistons；8 springs；9 universal ball components；10 end gear cams；11 steel balls；12 oscillating tooth carriers；13 slot type two-phase balance shock waves
Device；14 output shafts；15 sealing rings；16 output end bearing covers；17 deep groove ball bearings；18 sleeves；19 thrust ball bearings；20 keys；21
Nut；22 bolts；23 cylinder end bearing covers；24 housings；25 deep groove ball bearings；26 steel balls.
Specific embodiment
The end tooth wheel cam type internal combustion engine of two-phase balance shown in Fig. 1~Figure 10, mainly by cylinder head (1), exhaust valve (2), enter
Valve (3), cylinder (4), cylinder body (5), push rod (6), piston (7), spring (8), universal ball component (9), end gear cam (10),
Steel ball (11), oscillating tooth carrier (12), slot type two-phase balance shock wave device (13), output shaft (14), sealing ring (15), output end bearing cover
(16), deep groove ball bearing (17), sleeve (18), thrust ball bearing (19), key (20), nut (21), bolt (22), cylinder end axle
Hold lid (23), housing (24), deep groove ball bearing (25) and starting system, air distribution system, cooling system, oil supply system, lube system
System composition, it is characterised in that：Replace the song in existing crankshaft-link rod type internal combustion engine with slot type two-phase balance end gear-cam mechanism
Axle linkage, sets eight cylinders (4), the top of eight cylinders (4) is located normal on the right of end gear cam (10)
In the same plane of the axis of output shaft (14), the axial lines of all cylinders (4) is parallel to the axis of output shaft (14), and with
The axis of output shaft (14) is equidistant, circumferential uniform, and eight pistons (7) are respectively put into eight cylinders (4), the axial direction of piston (7)
Left and right linear reciprocating motion is changed into the rotary motion of output shaft (14), end tooth wheel through slot type two-phase balance end gear-cam mechanism
Cam (10) organically combines internal combustion engine and slot type two-phase balance end gear-cam mechanism together, makes internal combustion engine without extra again
It is equipped with speed increaser.Above-mentioned slot type two-phase balance end gear-cam mechanism is by the phase cam mechanism of multi-directional ball slot type four and slot type two teeth difference
Balance movable tooth drive mechanism is organically combined；Wherein, the phase cam mechanism of multi-directional ball slot type four is by end gear cam (10), ten thousand
Constituted to ball component (9), push rod (6), one end and the piston (7) of push rod (6) are fixedly connected, and the other end is equipped with by thread connection
Universal ball component (9), universal ball component (9) makes coupling between push rod (6) and the slot type cam of end gear cam (10) right-hand member
Couple for rolling friction, change the hinge-coupled in existing reciprocating internal combustion engine between piston and connecting rod, connecting rod and bent axle and close
System, so as to be greatly improved transmission efficiency, one end of spring (8) couples with piston (7), and the bottom of the other end and cylinder (4) joins
Connect, spring (8) makes slot type cam of the universal ball component (9) all the time with holding gear cam (10) right-hand member on push rod (6) keep connecing
Touch, end gear cam (10) is supported on output shaft (14) by deep groove ball bearing (25).Slot type two teeth difference balance Oscillating Tooth Gear Reducer
Mechanism is by end gear cam (10), steel ball (11), oscillating tooth carrier (12), slot type two-phase balance shock wave device (13), output shaft (14) group
Into, wherein oscillating tooth carrier (12) is connected firmly with cylinder body (5) and housing (24) by bolt (22), slot type two-phase balance shock wave device (13) with
Coupled between output shaft (14) by key (20), output shaft (14) passes through a pair of deep groove ball bearings (17) and a thrust ball bearing
(19) it is respectively supported in housing (24) and cylinder body (5), thrust ball bearing (19) is to slot type two-phase balance shock wave device (13) and defeated
Shaft (14) has carried out axial restraint, output shaft (14), end gear cam (10), oscillating tooth carrier (12) and slot type two-phase balance shock wave
The axial line of (13) four parts of device is overlapped；The number Z of steel ball (11)11With the tooth number Z of end gear cam (10)10Differ as 2；
Z is provided with oscillating tooth carrier (12)11Individual axially extending bore, this Z11The axis of individual axially extending bore and the diameter parallel of oscillating tooth carrier (12), and
Axis on oscillating tooth carrier (12) is equidistant and circumferential uniform, Z11Individual steel ball (11) is attached separately to the Z of oscillating tooth carrier (12)11Individual radius
With steel ball (11) radius identical axially extending bore in and can freely be axially moved；Steel ball (11) and end gear cam (10), groove
Formula two-phase balance shock wave device (13) and oscillating tooth carrier (12) are while keep engagement contact；In slot type two teeth difference balance movable tooth drive mechanism
In, the track of the geometric center of steel ball (11) is a cylinder surface curve, and the cylinder where the curve is referred to as slot type two teeth difference balance
The indexing cylinder of movable tooth drive mechanism, is also the indexing cylinder of slot type two-phase balance end gear-cam mechanism, is also that end tooth wheel is convex
The indexing cylinder of (10) is taken turns, the axis of the cylinder is overlapped with the axis of output shaft (14)；The axial line of eight cylinders (4) is all in groove
On the reference cylinder of formula two-phase balance end gear-cam mechanism parallel to output shaft (14) axial line and be evenly distributed；End
The right-hand member of gear cam (10) is the symmetrical circumferential equally distributed phase cam of cylindrical shape slot type four in axle center, the profile of the four phases cam
Shape on above-mentioned reference cylinder is four identical axially projecting portions, and the corresponding central angle of each projection is 90
Degree, the guide groove section of the four phases cam is the radius identical circular arc of radius and the steel ball (26) in universal ball component (9), can be led to
Cross and choose appropriate piston (7) axial movement rule to determine the axial profile curve of the four phases cam, so that internal combustion engine is obtained
Optimal dynamic property, economy and discharge index, the present embodiment is determined by piston (7) displacement is the sinusoidal characteristics of motion
The axial profile curve of the four phases cam；In the right-hand member and the left end of end gear cam (10) of slot type two-phase balance shock wave device (13)
The symmetrical circumferential equally distributed guide groove in axle center is circumferentially provided with, the two circumferential guide groove is that steel ball (11) is rotated with oscillating tooth carrier (12)
While when being moved in the axially extending bore of oscillating tooth carrier (12) a series of residing positions envelope surface, the two circumferential guide groove is in axle
Shape in section is all circular arc, and the radius of circular arc is identical with the radius of steel ball (11), and the track of the two circumferential guide groove is cosine
Distribution of the function curve along the face of cylinder, wherein cosine function periodicity of circumferential guide groove track of end gear cam (10) left end etc.
In the tooth number Z of end gear cam (10)10, end gear cam (10) left end is the end in slot type two teeth difference balance movable tooth drive mechanism
Gear, so the tooth number Z of end gear cam (10)10The tooth of end tooth wheel namely in slot type two teeth difference balance movable tooth drive mechanism
Number, and the cosine function periodicity of the circumferential guide groove track of slot type two-phase balance shock wave device (13) right-hand member is equal to slot type two-phase balance
The axial wave amplitude number 2 of shock wave device (13), i other words the right-hand member of slot type two-phase balance shock wave device (13) is slot type two-phase cam, this two
Shape of the profile of phase cam on above-mentioned reference cylinder is two identical axially projecting portions, each projection correspondence
Central angle be 180 °；End gear cam (10) is both the cam in the phase cam mechanism of multi-directional ball slot type four, is the tooth of slot type two again
End tooth wheel in poor balance movable tooth drive mechanism, makes inventive combustion engine compact conformation.Any two in above-mentioned eight cylinders (4)
It is separated by the 180 ° of piston being arranged symmetrically (7) working conditions synchronizations, regard two synchronous pistons (7) of working condition as one group, four
Group piston (7) carries out intake stroke, compression stroke, gas work by combustion stroke and exhaust stroke, two adjacent groups cylinder (4) successively
A stroke is differed, the phase difference corresponding to end gear cam (10) corner is 45 °.Piston (7) passes through the axially straight of push rod (6)
Line, which is moved back and forth, causes end gear cam (10) rotation, and end gear cam (10) is by power through slot type two teeth difference balance Oscillating Tooth Gear Reducer
Mechanism is transmitted to output shaft (14), and last power is exported by output shaft (14).
In above-mentioned slot type two teeth difference balance movable tooth drive mechanism, steel ball (11) and end gear cam (10), oscillating tooth carrier (12)
It is multiple tooth engagement between slot type two-phase balance shock wave device (13), and contact area is big, therefore high-power transmission can be realized.
Fig. 8 left side figure shows the shape of the end tooth wheel of end gear cam (10) left end, and Fig. 8 the right figure shows end
The shape of the phase cam of cylindrical shape slot type four of gear cam (10) right-hand member, holds gear cam (10) in its reference circle as seen from Figure 9
Shape on cylinder is：The contour curve of (right-hand member of the top corresponding end gear cam in Fig. 9) is by four sections of axles of identical on one side
It is four phase cam contours, the corresponding central angle of every section of protrusion curve is 90 degree to protrusion curve composition；Another side is (in Fig. 9
The left end of following corresponding end gear cam) be end tooth wheel contour curve.Black curve in Figure 10 is the geometry of steel ball (11)
Track of the center on the reference cylinder of slot type two-phase balance shock wave device (13).The indexing of slot type two-phase balance shock wave device (13)
The face of cylinder is overlapped with the reference cylinder of slot type two-phase balance end gear-cam mechanism.
The operation principle of internal combustion engine of the present invention is：
When the engine operates, gas burning is done work to the piston (7) in cylinder, and its driving force is straight by push rod (6)
Line, which is moved back and forth, to be acted on end gear cam (10), slot type four phase of the universal ball component (9) in end gear cam (10) right-hand member
Moved on cam contour curved surface, promote-side gear cam (10) rotate counterclockwise, power is by end gear cam (10) through slot type two
Tooth difference balance movable tooth drive mechanism is transmitted to output shaft (14) output；Due to the rotation of end gear cam (10), universal ball component (9)
The piston so as to make not do work by push rod (6) is rolled along the phase cam contour of slot type four of end gear cam (10) right-hand member
(7) slided in cylinder (4), complete the task of air-breathing, compression or exhaust.
As shown in Figure 1, Figure 2, shown in Fig. 7, it is by eight cylinders (4) and its each self-corresponding multi-directional ball component (9) Unified number
a、b、c、d、e、f、g、h.It is in Fig. 1, Fig. 2, Fig. 7, cylinder a and e, b and f, c and g, d and h is each as one group, then have four
Group cylinder.If the piston (7) in cylinder (4) a, e is in piston (7) place in the starting position of intake stroke, cylinder (4) b, f
Piston (7) in the starting position of compression stroke, cylinder (4) c, g is in the starting position of gas work by combustion stroke, cylinder
(4) piston (7) in d, h is in the starting position of exhaust stroke, and the stroke process of two adjacent groups piston (7) differs a punching
Journey, the phase difference corresponding to end gear cam (10) corner is 45 °.Then end gear cam (10) is turned over after 45 ° counterclockwise, gas
Cylinder (4) b, f starts work by combustion again, and end gear cam (10) is turned over after 45 ° counterclockwise again, and cylinder (4) a, e starts burning again
Acting, cylinder (4) a, e work by combustion starts work by combustion after completing followed by cylinder (4) d, h, takes turns to cylinder (4) again afterwards
C, g work by combustion, so circulation are gone down, and end gear cam (10) is continuously and smoothly operated, end gear cam (10) isogonism speed
Degree rotation when its left end end tooth wheel can promote steel ball (11) in the axially extending bore of oscillating tooth carrier (12) axially movable, steel ball
(11) engaged under the effect of contraction of oscillating tooth carrier (12) with slot type two-phase balance shock wave device (13), promote slot type two-phase balance shock wave
Device (13) is rotated, then by the output shaft (14) with slot type two-phase balance shock wave device (13) key connecting continuously and smoothly by power and
Movement output.
Shifting characteristics of internal combustion engine to illustrate the invention, if the rotating speed of slot type two-phase balance shock wave device (13) is n13, steel ball
(11) number Z11=8, the number of teeth and rotating speed of end gear cam (10) are respectively Z10=10, n10=360r/min.Oscillating tooth carrier
(12) fixed (n12=0), then the gearratio of slot type two teeth difference balance movable tooth drive mechanism is：
Therefore obtain the rotating speed n of output shaft (14)14=n13=1800r/min, it is seen then that slot type two-phase balance shock wave device (13), defeated
The steering of shaft (14) is identical with end gear cam (10), but rotating speed is much larger than end gear cam (10), the output of internal combustion engine speedup
Power, can be achieved speedy carding process.This characteristic can be widely applied to need high-revolving field, such as small generator, go straight up to
Machine engine etc., output speed one can regularly reduce the discharge of pernicious gas, reach the purpose of energy-saving and emission-reduction.
The internal combustion engine of the present embodiment is additionally provided with starting system, air distribution system, lubricating system, oil supply system and cooling system
Deng.
Claims (2)
1. two-phase balance end tooth wheel cam type internal combustion engine, mainly by cylinder head (1), exhaust valve (2), inlet valve (3), cylinder (4),
Cylinder body (5), push rod (6), piston (7), spring (8), universal ball component (9), end gear cam (10), steel ball (11), oscillating tooth carrier
(12), slot type two-phase balance shock wave device (13), output shaft (14), sealing ring (15), output end bearing cover (16), deep groove ball bearing
(17), sleeve (18), thrust ball bearing (19), key (20), nut (21), bolt (22), cylinder end bearing cover (23), housing
(24), deep groove ball bearing (25) and starting system, air distribution system, cooling system, oil supply system, lubricating system composition, its feature
It is：Replace the crankshaft connecting rod system in existing crankshaft-link rod type internal combustion engine with slot type two-phase balance end gear-cam mechanism,
Hold the right of gear cam (10) that eight cylinders (4) are set, the top of eight cylinders (4) is located normal to the axle of output shaft (14)
In the same plane of line, the axial lines of all cylinders (4) is parallel to the axis of output shaft (14), and with the axle of output shaft (14)
Line is equidistant, circumferential uniform, and eight pistons (7) are respectively put into eight cylinders (4), the axial left and right reciprocating linear fortune of piston (7)
The dynamic rotary motion for being changed into output shaft (14) through slot type two-phase balance end gear-cam mechanism, holds gear cam (10) by internal combustion
Machine and slot type two-phase balance end gear-cam mechanism organically combine together, make internal combustion engine without optional equipment speed increaser again；On
Slot type two-phase balance end gear-cam mechanism is stated by the phase cam mechanism of multi-directional ball slot type four and slot type two teeth difference balance Oscillating Tooth Gear Reducer
Mechanism is organically combined；Wherein, the phase cam mechanism of multi-directional ball slot type four by end gear cam (10), universal ball component (9),
Push rod (6) is constituted, and one end and the piston (7) of push rod (6) are fixedly connected, and the other end is equipped with universal ball component by thread connection
(9), universal ball component (9) makes coupling for rolling friction between push rod (6) and the slot type cam of end gear cam (10) right-hand member
Connection, changes the hinge-coupled relation between piston and connecting rod, connecting rod and bent axle in existing reciprocating internal combustion engine, so as to big
Big to improve transmission efficiency, one end of spring (8) couples with piston (7), and the other end couples with the bottom of cylinder (4), and spring (8) makes
Universal ball component (9) on push rod (6) keeps contacting with the slot type cam for holding gear cam (10) right-hand member all the time, holds gear cam
(10) it is supported in by deep groove ball bearing (25) on output shaft (14)；Slot type two teeth difference balance movable tooth drive mechanism is convex by end tooth wheel
Take turns (10), steel ball (11), oscillating tooth carrier (12), slot type two-phase balance shock wave device (13), wherein output shaft (14) composition, oscillating tooth carrier
(12) connected firmly with cylinder body (5) and housing (24) by bolt (22), slot type two-phase balance shock wave device (13) and output shaft (14) it
Between coupled by key (20), output shaft (14) supported respectively by a pair of deep groove ball bearings (17) and a thrust ball bearing (19)
In housing (24) and cylinder body (5), thrust ball bearing (19) is carried out to slot type two-phase balance shock wave device (13) and output shaft (14)
Axial restraint, output shaft (14), end gear cam (10), oscillating tooth carrier (12) and slot type two-phase balance shock wave device (13) four zero
The axial line of part is overlapped；The number Z of steel ball (11)11With the tooth number Z of end gear cam (10)10Differ as 2；In oscillating tooth carrier (12)
On be provided with Z11Individual axially extending bore, this Z11The axis of individual axially extending bore and the diameter parallel of oscillating tooth carrier (12), and on oscillating tooth carrier
(12) axis is equidistant and circumferential uniform, Z11Individual steel ball (11) is attached separately to the Z of oscillating tooth carrier (12)11Individual radius and steel ball (11)
Radius identical axially extending bore is interior and can freely be axially moved；Steel ball (11) and end gear cam (10), slot type two-phase balance
Shock wave device (13) and oscillating tooth carrier (12) are while keep engagement contact；In slot type two teeth difference balance movable tooth drive mechanism, steel ball
(11) track of geometric center is a cylinder surface curve, and the cylinder where the curve is referred to as slot type two teeth difference balance Oscillating Tooth Gear Reducer
The indexing cylinder of mechanism, is also the indexing cylinder of slot type two-phase balance end gear-cam mechanism, is also end gear cam (10)
Cylinder is indexed, the axis of the cylinder is overlapped with the axis of output shaft (14)；The axial line of eight cylinders (4) is all put in slot type two-phase
On the reference cylinder of disk end gear-cam mechanism parallel to output shaft (14) axial line and be evenly distributed；Hold gear cam
(10) right-hand member is the symmetrical circumferential equally distributed phase cam of cylindrical shape slot type four in axle center, and the profile of the four phases cam is at above-mentioned point
The shape spent on the face of cylinder is four identical axially projecting portions, and the corresponding central angle of each projection is 90 degree, and this four
The guide groove section of phase cam is the radius identical circular arc of radius and the steel ball (26) in universal ball component (9), can be by choosing
Appropriate piston (7) is axially moved rule to determine the axial profile curve of the four phases cam, so that internal combustion engine obtains optimal
Dynamic property, economy and discharge index；In the right-hand member and the left end of end gear cam (10) of slot type two-phase balance shock wave device (13)
The symmetrical circumferential equally distributed guide groove in axle center is circumferentially provided with, the two circumferential guide groove is that steel ball (11) is rotated with oscillating tooth carrier (12)
While when being moved in the axially extending bore of oscillating tooth carrier (12) a series of residing positions envelope surface, the two circumferential guide groove is in axle
Shape in section is all circular arc, and the radius of circular arc is identical with the radius of steel ball (11), and the track of the two circumferential guide groove is cosine
Distribution of the function curve along the face of cylinder, wherein cosine function periodicity of circumferential guide groove track of end gear cam (10) left end etc.
In the tooth number Z of end gear cam (10)10, end gear cam (10) left end is the end in slot type two teeth difference balance movable tooth drive mechanism
Gear, and the cosine function periodicity of the circumferential guide groove track of slot type two-phase balance shock wave device (13) right-hand member is put equal to slot type two-phase
The axial wave amplitude number 2 of disk shock wave device (13), i other words the right-hand member of slot type two-phase balance shock wave device (13) is slot type two-phase cam, should
Shape of the profile of two-phase cam on above-mentioned reference cylinder is two identical axially projecting portions, each projection pair
The central angle answered is 180 °；End gear cam (10) is both the cam in the phase cam mechanism of multi-directional ball slot type four, is slot type two again
End tooth wheel in tooth difference balance movable tooth drive mechanism, makes inventive combustion engine compact conformation；Any two in above-mentioned eight cylinders (4)
It is individual to be separated by the 180 ° of piston being arranged symmetrically (7) working conditions synchronizations, using two synchronous pistons (7) of working condition as one group,
Four groups of pistons (7) carry out intake stroke, compression stroke, gas work by combustion stroke and exhaust stroke, two adjacent groups cylinder successively
(4) stroke is differed, the phase difference corresponding to end gear cam (10) corner is 45 °；The axle that piston (7) passes through push rod (6)
To straight reciprocating motion so that end gear cam (10) rotation, end gear cam (10) is by power through slot type two teeth difference balance oscillating tooth
Transmission mechanism is transmitted to output shaft (14), and last power is exported by output shaft (14).
2. two-phase balance end tooth wheel cam type internal combustion engine according to claim 1, it is characterised in that：The above-mentioned tooth of slot type two
In poor balance movable tooth drive mechanism, steel ball (11) and end gear cam (10), oscillating tooth carrier (12) and slot type two-phase balance shock wave device
(13) it is multiple tooth engagement between, and contact area is big, therefore high-power transmission can be realized.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710101694.1A CN107044341B (en) | 2017-02-24 | 2017-02-24 | Two-phase balance end tooth wheel cam type internal combustion engine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710101694.1A CN107044341B (en) | 2017-02-24 | 2017-02-24 | Two-phase balance end tooth wheel cam type internal combustion engine |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20020044873A1 (en) * | 1998-10-08 | 2002-04-18 | Hitachi, Ltd. | High pressure fuel pump |
| US6543424B1 (en) * | 1999-08-12 | 2003-04-08 | Hitachi, Ltd. | Fuel pump, in-cylinder direct injection type internal combustion engine using the same and surface treatment method |
| CN1664313A (en) * | 2005-04-06 | 2005-09-07 | 陈贤湘 | Double cosinoidal oscillating tooth plunger pump or motor |
| CN105604696A (en) * | 2016-01-25 | 2016-05-25 | 四川大学 | Internal combustion engine driven by needle roller block with any tooth difference |
| CN105822492A (en) * | 2016-03-18 | 2016-08-03 | 燕山大学 | Multi-action axial plunger hydraulic motor |
| WO2016142229A1 (en) * | 2015-03-11 | 2016-09-15 | Mahle International Gmbh | Axial piston machine |
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2017
- 2017-02-24 CN CN201710101694.1A patent/CN107044341B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020044873A1 (en) * | 1998-10-08 | 2002-04-18 | Hitachi, Ltd. | High pressure fuel pump |
| US6543424B1 (en) * | 1999-08-12 | 2003-04-08 | Hitachi, Ltd. | Fuel pump, in-cylinder direct injection type internal combustion engine using the same and surface treatment method |
| CN1664313A (en) * | 2005-04-06 | 2005-09-07 | 陈贤湘 | Double cosinoidal oscillating tooth plunger pump or motor |
| WO2016142229A1 (en) * | 2015-03-11 | 2016-09-15 | Mahle International Gmbh | Axial piston machine |
| CN105604696A (en) * | 2016-01-25 | 2016-05-25 | 四川大学 | Internal combustion engine driven by needle roller block with any tooth difference |
| CN105822492A (en) * | 2016-03-18 | 2016-08-03 | 燕山大学 | Multi-action axial plunger hydraulic motor |
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