EP2841695A1 - Drehkolbenmaschine, die als pumpe, verdichter oder motor für ein fluid wirkt - Google Patents
Drehkolbenmaschine, die als pumpe, verdichter oder motor für ein fluid wirktInfo
- Publication number
- EP2841695A1 EP2841695A1 EP13709334.0A EP13709334A EP2841695A1 EP 2841695 A1 EP2841695 A1 EP 2841695A1 EP 13709334 A EP13709334 A EP 13709334A EP 2841695 A1 EP2841695 A1 EP 2841695A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- gear
- central axis
- rotary piston
- tooth
- angle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000012530 fluid Substances 0.000 title description 3
- 239000007788 liquid Substances 0.000 claims abstract description 5
- 230000033001 locomotion Effects 0.000 description 25
- 238000007906 compression Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 210000001520 comb Anatomy 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C3/00—Rotary-piston machines or engines with non-parallel axes of movement of co-operating members
- F01C3/06—Rotary-piston machines or engines with non-parallel axes of movement of co-operating members the axes being arranged otherwise than at an angle of 90 degrees
- F01C3/08—Rotary-piston machines or engines with non-parallel axes of movement of co-operating members the axes being arranged otherwise than at an angle of 90 degrees of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C1/00—Rotary-piston machines or engines
- F01C1/08—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing
- F01C1/082—Details specially related to intermeshing engagement type machines or engines
- F01C1/084—Toothed wheels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C1/00—Rotary-piston machines or engines
- F01C1/08—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing
- F01C1/082—Details specially related to intermeshing engagement type machines or engines
- F01C1/088—Elements in the toothed wheels or the carter for relieving the pressure of fluid imprisoned in the zones of engagement
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
- F01C21/18—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C3/00—Rotary-piston machines or pumps, with non-parallel axes of movement of co-operating members, e.g. of screw type
- F04C3/06—Rotary-piston machines or pumps, with non-parallel axes of movement of co-operating members, e.g. of screw type the axes being arranged otherwise than at an angle of 90 degrees
- F04C3/08—Rotary-piston machines or pumps, with non-parallel axes of movement of co-operating members, e.g. of screw type the axes being arranged otherwise than at an angle of 90 degrees of intermeshing engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
Definitions
- Rotary piston machine which acts as a pump, compressor or motor for a fluid
- DE 42 41 320 AI proposes to arrange a control part between the driven part and the drive part such that between the control part and the drive part first working spaces and between the driven part and the control part second working spaces are formed that face each other.
- DE 10 2008 013991 AI which is also published under WO 2008/110155 AI, proposes to provide a rotor and a stator in a housing, wherein between a drive shaft and the rotor an inclined sliding plane is arranged.
- This inclined sliding plane leads to a rotation of the shaft to a tumbling of the rotor or a tumbling of the rotor to a rotation of the shaft.
- the rotor opposite the stator is not co-rotating and thus stationary in a housing receiving the rotor and the stator.
- Rotary piston machine which operates as a pump, compressor or motor for liquid or gaseous medium provided.
- the rotary engine has a first gear having a first center axis, a first gear
- the first center axis and the second center axis enclose an angle that is not equal to 180 °.
- the third central axis and at least one central axis of the first central axis and the second central axis enclose an angle which is not equal to 0 ° or 90 °.
- the first sliding plane and the central axis are perpendicular to each other.
- the first gear has a first end face with a first toothing with at least one first tooth and the second toothed wheel has a second end face with a second toothing with at least one second tooth, wherein a first number of first teeth and a second number of second teeth differ from one another are.
- the first tooth and the second tooth engage with each other in such a way that at least one working space is formed by combing the teeth.
- a volume formed by the at least one working space is changed by the meshing of the teeth.
- the at least one working space is formed by a spherical inner wall of a Limited housing.
- the at least one working space is connectable to an inflow and an outflow for the medium.
- a component of the group of first gear and second gear is coupled to the housing such that the component wobbles exclusively by a rotation of the drive shaft.
- the respective other component from the group of first gear and second gear is coupled to the first sliding plane such that rotates by a rotation of the drive shaft, the respective other component and staggers.
- stator known from DE 10 2008 013991 A1 is no longer stationary, but staggers in relation to a housing, the area to which the inflows and outflows can be arranged is increased.
- the tumbling motion makes it possible to arrange more than one inflow and one outflow for the medium.
- many inflows and outflows can be arranged circumferentially on the housing, how many teeth the gear has the lowest number of teeth.
- the first number may comprise only a first tooth and the second number two or more second teeth, and vice versa.
- the number of inflows can be equal to the number of outflows.
- the inflows and outflows can here be circumferentially distributed uniformly distributed. Due to the higher number of inflows and outflows and a different shape of these compared to the prior art, high speeds or pressure peaks in the medium can be avoided. Also, the degree of filling of
- the second gear can be encompassed by the spherical, in particular hemispherical, inner wall of the housing and thereby supported on the inner wall of the housing.
- the first gear for rotating and / or tumbling can be excited. Due to the wobbling motion of the first gear, the second gear is excited to a tumbling motion.
- the second gear may be connected to the housing or the inner wall such that a relative rotation of the second gear relative to the housing, or the first gear, is prevented.
- the first gear and the second gear each have a number of teeth which differ from one another by at least one tooth. Has proved suitable for such a configuration in particular a Trochodialvertechnikung.
- a radial delimitation of the work spaces inward can by
- the spherical parts are arranged, which are arranged on the gears.
- the inner wall of the housing will be hemispherical in shape. This allows easy mounting of the first gear, the second gear and the drive shaft.
- the slip plane may also support the first gear so that when the volume of the at least one working space is reduced and thus the first and second gears are axially loaded in the opposite direction, the first gear is held in position.
- the second gear is supported by the housing.
- the at least one working space is bounded radially inwardly by a common contact surface which is of spherical design in the first gearwheel and in the second gearwheel.
- the first center axis and the third center axis include a first angle.
- the second center axis and the third center axis include a second angle.
- the first angle and the second angle are not equal to 0 ° or 90 °.
- both the first gear and the second gear is excited to tumble.
- the first angle may be 5 degrees and the second angle may be 20 degrees.
- the first angle and the second angle can be equal.
- the first center axis and the second center axis may be skewed to each other.
- the first central axis and the third central axis span a first plane.
- the first center axis and the second center axis may be a second level
- the first level and the second level may include an angle that is not 0 ° and not equal to 180 °.
- the first level and the second level can also be congruent.
- the first center axis and the third center axis span a first plane and the second center axis and the third center axis span a second plane.
- the first level and the second level are perpendicular to each other.
- first level and the second level can take any angle to each other.
- the first center axis and the second center axis lie in a common plane.
- the Drive shaft firmly connected to a second sliding plane.
- the second sliding plane and the second center axis are perpendicular to each other.
- the first sliding plane and the first gear are rotatable relative to each other and connected to each other.
- the second sliding plane and the second gear are rotatable relative to each other and connected to each other.
- the reliability of the rotary piston machine can be increased, as a result, the second gear through the second sliding plane forcibly put into a tumbling motion.
- the first gear and the second gear can be constrained in conjunction with the spherical inner wall of the housing.
- binding when combing the gears can be avoided, which can possibly be attributed to manufacturing tolerances of the gears.
- the first center axis, the second center axis and the third center axis intersect at a common point, wherein the common point center of a
- Diameter of the inner wall is.
- first sliding plane and the second sliding plane intersect the common point.
- Thrust bearing is arranged, the durability of the rotary engine is extended by avoiding a translational movement of the gear and the sliding plane.
- the first sliding plane and / or the second sliding plane do not intersect the common point.
- the second gear is non-rotatably coupled to the housing.
- a pin is firmly connected on an outer wall of the second gear.
- the pin is guided in a groove-shaped recess in the inner wall, wherein the recess is circular.
- the recess may also be formed as a circular groove, so that this groove can serve as a backdrop for the pin.
- the pin in conjunction with the circular recess can be formed as a fixation of the second gear to the housing, so that thereby a rotational movement of the second
- the first gear is connected to the
- a fixation of the first gear on the housing for example, by means of a protruding on the first gear in the radial direction pin in conjunction with a formed on the inner wall, respectively the housing groove formed.
- this may wobble the first gear, but not turn.
- the second gear will usually also tumble and usually turn as well.
- the extends
- both the pin and the inner wall of the housing can be produced inexpensively as a plastic injection molded part.
- at least one component from the group of at least one first tooth and at least one second tooth of the rotary piston machine has a recess, so that in a predetermined rotation angle range of the at least one
- the recess may be formed on a tooth flank or on both tooth flanks of a tooth. Also, the
- Recesses on the two tooth flanks be different from each other.
- the individual tributaries and / or outflows can be interconnected.
- inflows may be associated with drains to increase, for example, by such a rotary engine, the pressures to be achieved.
- the inflows and outflows can be controlled by means of valves, in particular solenoid valves.
- Lubricant can reduce the friction of the individual components
- the first toothing and the second toothing are selected from the group of
- Bearing element between the sliding plane and the associated gear as lubricated, hydraulically or pneumatically supported slide bearing be configured.
- the bearing element as a rolling bearing, for example as
- Roller bearing or other bearing be formed according to the prior art.
- the rotary piston machine described above can be used as a transmission.
- FIG. 1 shows a rotary piston machine in a longitudinal section
- Figure 2 shows the known from Figure 1 rotary piston machine in supervision in
- FIG. 3 shows the rotary-piston machine known from FIG. 1 in a 3D view in an X-ray view;
- FIG. 4 shows a drive shaft from that known from FIG.
- FIG. 5 shows a housing with an inner wall from that of FIG. 1
- FIG. 6 shows a first gearwheel from that known from FIG.
- FIG. 7 shows a second gearwheel from that known from FIG.
- Figure 1 shows a rotary piston machine 2, which operates as a pump, compressor or motor for liquid or gaseous medium.
- the rotary piston machine 2 has a first gear 4 with a first center axis I, a second gear 6 arranged opposite the first gear 4 with a second center axis II and a drive shaft 8 with a third center axis III.
- the drive shaft 8 has a disk element 11 which has a first sliding plane 10 on the side facing the first gear 4. Concentric with the third center axis III, the drive shaft 8 has an axle section 13 on the disk element 11. On the axle section 13, a second slip plane 12 is formed on the side facing the second gear 6.
- the disc member 11 may be formed so that on the
- Axle section 13 can be omitted.
- the first gear 4 has a first sliding surface 15, which in conjunction with the first sliding plane 10 of
- the first gearwheel 4 Opposite the first sliding surface 15, the first gearwheel 4 has a first end face 14, on which a first toothing 16 with at least one first tooth 18 is formed. Furthermore, the first gear 4 along the first central axis I has an opening 19 into which the
- Achsabites 13 protrudes.
- the second sliding surface 21 is opposite to the second gear 6, a second end face 20 is formed on which a second toothing 22 with at least one tooth 24 is formed is.
- a stub axle 25 extends along the second central axis II towards the axle section 13 and is bounded by the second sliding surface 21.
- the axle portion 13 may be formed such that it is also possible to dispense with the axle stub 25.
- combing of the at least one first tooth 18 and of the at least one first tooth 18 second tooth 24 a working space 26 is formed, wherein the combing of the teeth 18, 24, a volume formed by the working space 26 is changed.
- the first gear 4 and the second gear 6 are enclosed by a housing 28 with a spherical, here hemispherical-shaped, inner wall 30. This spherical inner wall 30 seals the working space 26 to the outside.
- the first gear 4 has a spherical first
- the second gear 6 has a spherical second outer wall 38, wherein the second outer wall 38 also corresponds to the spherical inner wall 30. Furthermore, in the first gear 4 is a spherical first bearing surface 32nd
- a pin 48 is formed on the second outer wall 38, which engages in a formed on the spherical inner wall 30 of the housing 28 circular recess 50.
- the circular recess 50 may also be formed as a circular ring.
- the first center axis I of the first gear 4, on which the first sliding plane 10 is perpendicular, intersects the third center axis III of the drive shaft 8 at a common point S.
- the second center axis II of the second gear 6 intersects the third center axis
- the spherical inner wall 30 extends along a diameter D, which also intersects the third center axis III in the common point S.
- the first center axis I and the third center axis III include a first angle a1 extending from the third center axis III beginning in the counterclockwise direction.
- Exemplary embodiment is the first angle a1 5 °. Continue to close the third
- Central axis III and the second center axis II a second angle a2 a.
- the angle extends from the third center axis III in
- Center axis I and the second center axis II include a third angle a3, which is not equal to 180 °. Furthermore, the first I, the second II and the third I II center axis span a common plane E. The fact that the first center axis I, the second center axis II and the third center axis III lie in one plane and that the two angles ⁇ 1, a2 extend in opposite directions, are generated by the first gear 4 during operation of the rotary piston machine 2
- Central axis III and the first central axis I a first level and the third
- Center axis II I and the second center axis I I span a second plane, wherein the two planes can be at any angle to each other. Furthermore, the second toothing 22 of the second gear 6 is formed such that the second end face 20 and the spherical second
- the first sliding plane 10 does not intersect the third center axis I I I in the common point S.
- Relative movement additionally a translatory movement. Especially the translational movement can cause a groove or scoring of the first sliding plane 10 and / or the first sliding surface 15 is avoided.
- the second slip plane 12 intersects the third center axis I I I in the point S. Accordingly, between the second slip plane 12 of the
- FIG. 2 shows the rotary-piston machine 2 known from FIG. 1 in a top view in the X-ray view. In this view it can be seen that the second
- Gear 6 five second teeth 24 and the first gear 4 six first teeth 18 has. Furthermore, the housing 28 has evenly distributed over the circumference five inflows 40 and five outlets 42. The number of inflows 40, respectively the outflows 42, this corresponds to the number of second teeth 24 of the second gear 6. At the spherical inner wall 36 is to each Inflow 40 a
- FIG. 3 shows the rotary-piston machine 2 known from FIG. 1 in a 3D view in an X-ray view. In this view, the formation of the inflow control channels 41 and the outflow control channels 43 are clearly visible. Here are the
- Inflow control channels 41 respectively the outflow control channels 43, designed such that the medium to be supplied to the working space 26 as possible filled to 100% and the outflow 42, the compressed medium is ejected as possible to 100%.
- the degree of filling of the working spaces 26 influences decisively both a volume flow of the medium to be transported and a pressure to be achieved.
- the opening 19 of the first gear 4 is in this case designed such that during the tumbling movements of the first gear 4 and the second gear 6 of the axle portion 13 of the drive shaft 8 and the stub axle 25 of the second gear 6 does not collide with the first gear 4.
- FIG. 4 shows the drive shaft 8 known from FIG.
- FIG. 5 shows the housing 28 of the rotary piston machine 2 known from FIG. 1 with a view of the spherical inner wall 30.
- the inflows 40 and the outflows 42 can be clearly seen as openings through the housing 28.
- the circular eccentrically arranged recess 50 can be seen.
- FIG. 6 shows the first gearwheel 4 from that known from FIG.
- Figure 7 shows the second gear 6 of the known from Figure 1
- Rotary piston machine 2 in a 3D view.
- the toothing 22 extends as far as the spherical second outer wall 38 and thus the second end face 20 extends through this second one
- Support surface 34 which corresponds to the spherical first
- first gear 4 Support surface 32 of the first gear 4 is clearly visible.
- first gear 4, the second gear 6, the drive shaft 8 and the housing 28 are each integrally formed as a plastic injection molded part. As a result, the individual parts can be manufactured inexpensively in large quantities.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Hydraulic Motors (AREA)
- Rotary Pumps (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102012206797A DE102012206797A1 (de) | 2012-04-25 | 2012-04-25 | Drehkolbenmaschine, die als Pumpe, Verdichter oder Motor für ein Fluid wirkt |
PCT/EP2013/053327 WO2013159946A1 (de) | 2012-04-25 | 2013-02-20 | Drehkolbenmaschine, die als pumpe, verdichter oder motor für ein fluid wirkt |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2841695A1 true EP2841695A1 (de) | 2015-03-04 |
EP2841695B1 EP2841695B1 (de) | 2016-10-26 |
Family
ID=47884245
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13709334.0A Active EP2841695B1 (de) | 2012-04-25 | 2013-02-20 | Drehkolbenmaschine, die als pumpe, verdichter oder motor für ein fluid wirkt |
Country Status (5)
Country | Link |
---|---|
US (1) | US9670778B2 (de) |
EP (1) | EP2841695B1 (de) |
CN (1) | CN104246130B (de) |
DE (1) | DE102012206797A1 (de) |
WO (1) | WO2013159946A1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015139554A1 (zh) * | 2014-03-18 | 2015-09-24 | 西安正安环境技术有限公司 | 球形压缩机转子防卡死机构、球形压缩机防卡死动力机构和球形压缩机 |
CN106703982A (zh) * | 2015-08-10 | 2017-05-24 | 马宏丹 | 球形转子发动机 |
CN108425703B (zh) * | 2018-03-12 | 2023-09-26 | 陈武 | 流体齿轮式汽能机 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3236186A (en) * | 1963-04-29 | 1966-02-22 | Wildhaber Ernest | Positive-displacement unit |
US3895610A (en) * | 1974-05-17 | 1975-07-22 | Robert H Wahl | Rotary Nutating engine |
WO1993012325A1 (de) * | 1991-12-09 | 1993-06-24 | Felix Arnold | Drehkolbenmaschine |
DE102008013991A1 (de) | 2007-03-13 | 2008-12-04 | Cor Pumps + Compressors Ag | Pumpe oder Motor |
DE102008023475A1 (de) | 2008-05-14 | 2009-11-19 | Robert Bosch Gmbh | Hydromaschine |
JP5576191B2 (ja) | 2010-06-18 | 2014-08-20 | トヨタ自動車株式会社 | 車両用内接歯車型オイルポンプ |
DE102010063542A1 (de) * | 2010-10-08 | 2012-04-12 | Robert Bosch Gmbh | Strömungsgetriebe |
-
2012
- 2012-04-25 DE DE102012206797A patent/DE102012206797A1/de not_active Withdrawn
-
2013
- 2013-02-20 CN CN201380021190.9A patent/CN104246130B/zh active Active
- 2013-02-20 US US14/397,432 patent/US9670778B2/en not_active Expired - Fee Related
- 2013-02-20 WO PCT/EP2013/053327 patent/WO2013159946A1/de active Application Filing
- 2013-02-20 EP EP13709334.0A patent/EP2841695B1/de active Active
Also Published As
Publication number | Publication date |
---|---|
US9670778B2 (en) | 2017-06-06 |
CN104246130B (zh) | 2017-08-25 |
EP2841695B1 (de) | 2016-10-26 |
US20150086407A1 (en) | 2015-03-26 |
WO2013159946A1 (de) | 2013-10-31 |
CN104246130A (zh) | 2014-12-24 |
DE102012206797A1 (de) | 2013-10-31 |
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