CN101617128A - Draught fan impeller, system and transmission line - Google Patents
Draught fan impeller, system and transmission line Download PDFInfo
- Publication number
- CN101617128A CN101617128A CN200880005594A CN200880005594A CN101617128A CN 101617128 A CN101617128 A CN 101617128A CN 200880005594 A CN200880005594 A CN 200880005594A CN 200880005594 A CN200880005594 A CN 200880005594A CN 101617128 A CN101617128 A CN 101617128A
- Authority
- CN
- China
- Prior art keywords
- draught fan
- fan impeller
- air
- aforementioned
- fan blade
- 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
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/666—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by means of rotor construction or layout, e.g. unequal distribution of blades or vanes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/288—Part of the wheel having an ejecting effect, e.g. being bladeless diffuser
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
- F04D29/703—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps specially for fans, e.g. fan guards
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Jet Pumps And Other Pumps (AREA)
Abstract
The present invention relates to a kind of draught fan impeller, draught fan impeller is provided with the air lead ring (12) that forms protrudingly, and the matrix (10) of described air lead ring and draught fan impeller and fan blade (11) form the air passageways of jet pipe shape.Described air passageways is along circumferentially extending with irregular angular orientation.
Description
Technical field
The present invention relates to a kind of draught fan impeller, a kind of system and a kind of transmission line.
Summary of the invention
The objective of the invention is to, improve a kind of blower fan, thereby reduce environmental pressure.
According to the present invention, described purpose is by according to the described draught fan impeller of feature that provides in claim 1, realize according to the described system of feature that provides in claim 26 and according to the described transmission line of the feature that provides in claim 31.
The key character of the present invention of draught fan impeller is, first fan blade has first angle displacement with respect to the first adjacent fan blade on circumferential direction, described first fan blade has second angle displacement with respect to the second adjacent fan blade in the opposite direction, and wherein said first angle displacement is less than described second angle displacement.Alternatively, each (blower fan) blade comprises the angle displacement value of at least two different stages with respect to the sequence on circumferential direction at the angle displacement of fan blade the most adjacent on the circumferential direction.Therefore provided a kind of simple design proposal, wherein fan blade needn't be arranged regularly.Be that in this advantage fan blade produces periodic excitation, its main frequency component situation onesize with working as all angle displacements compared low.Half of frequency component when particularly described frequency component is up to the fan blade regular arrangement.
In a kind of favourable improvement project, fan blade is along circumferential direction, particularly along the circumferentially spaced apart brokenly certain distance of draught fan impeller.Preferably, be provided with a quantity n fan blade, wherein at draught fan impeller when its axis evenly rotates, fan blade forms an activation sequence during fixing reference direction on through a space, its cycle time is greater than n/one of draught fan impeller rotation period.Particularly preferably, cycle time is more than or equal to half of draught fan impeller rotation period.Especially particularly preferably, equal the rotation period of draught fan impeller cycle time.Therefore can realize the favourable big reduction of main frequency value of the caused vibrational excitation of fan blade and the reduction of especially particularly preferred maximum possible.Therefore the subjective at least noise jamming that reduces the environment to external world that causes owing to fan operation is because the frequency of noise can migrate under the threshold of hearing or moves to wherein in the scope of human auditory to the receptance reduction of noise.In addition, can be reduced in the excitation that causes by fan blade and the vibration that causes by the operation of transmission device between resonance effect.
In a kind of favourable design proposal, each air passageways defines by fan blade, air lead ring and/or matrix at least, and wherein the cross section of air passageways has a minimum value in trend from inside to outside.Therefore air passageways forms and has the jet pipe effect.Described jet pipe has advantageously caused directed cooling air flow.
In a kind of favourable improvement project, the minimum value of the cross section of air passageways causes by the minimum value of the spacing between matrix and the air lead ring, particularly by causing at the cross section of the matrix with axial plane figure/sectional shape and minimum value with the spacing between the cross section figure of air lead ring of axial plane.Draught fan impeller advantageously comprises matrix, fan blade and air lead ring, wherein matrix has a frusto-conical region, and a section of per at least two fan blades, frusto-conical region and a section of air lead ring form an air passageways that radially extends respectively, and its cross section is radially being walked upwards to have a minimum value.The particularly described nozzle shape of the geometrical property of air passageways is in this advantage, can makes draught fan impeller simply, because can utilize the boundary of air lead ring and matrix to make simply and control.In addition, the matrix of draught fan impeller also has the air guiding function except it keeps function.Can save parts thus.
In a kind of favourable design proposal, the cross section of air lead ring side within it forms protrudingly and forms in its outside recessedly, and particularly so formation makes the wall thickness substantial constant.The constant revolution that depends on the manufacturing tolerances of manufacturing technology and depend on employed blower fan at this wall thickness.Therefore the external shape of air lead ring is followed the interior shape of air lead ring basically, and also uses the favourable shape that after a little while forms the air lead ring at material simultaneously.Be in this advantage, use small quantity of material probably, thereby make its moment of inertia as far as possible little for the air lead ring.
In a kind of favourable improvement project, matrix has a frusto-conical region, the air lead ring can be with one heart meets (einbeschreibbar) in mathematics awl in so, make the air lead ring in first and second axial region, touch this mathematics awl, and be provided with minimum separable in the 3rd axial region between air lead ring and mathematics awl, wherein the 3rd axial region is arranged between described first axial region and described second axial region, per at least two fan blades, a section of frusto-conical region and a section of air lead ring form an outward extending air passageways respectively.Be the described air passageways that utilizes constructing technology and the simple geometrical shape of controlling of manufacturing technology that jet pipe shape can be provided in this advantage.
In a kind of favourable improvement project, on draught fan impeller, be formed with at least two different air passagewayss.Preferably, each air passageways can be described by physical dimension, and the physical dimension sequence of air passageways is irregular sequence when blower fan rotates.Particularly preferably, the physical dimension of each air passageways is the angle of the fan blade of a angle between the fan blade of described limited boundary or a limited boundary with respect to a reference direction, and this reference direction is fixed with respect to blower fan.Selectively, the physical dimension of each air passageways is the angular orientation of the center of gravity or the midplane of air passageways, or a direction that is labeled out of air passageways is with respect to the angle of a reference direction fixing with respect to blower fan.Therefore provided the simple geometric eigenvalue, can be with reference to described eigenvalue in order to design consideration draught fan impeller of the present invention.
In a kind of favourable improvement project, the center of gravity that is formed by all fan blades is in the center of blower fan.Be in this advantage, when reducing noise is loaded, avoided support and material owing to the uneven extra duty that causes.
In a kind of favourable improvement project, the maximal axial extension of fan blade is greater than the maximal axial extension of air lead ring.
In a kind of favourable improvement project, the maximal axial extension of fan blade is greater than the twice of the maximal axial extension of air lead ring.Be in this advantage, realized cooling air radially or the outflow of side direction.Therefore draught fan impeller can or have in the General System of blower fan at different transmission devices and uses.
In a kind of favourable improvement project, the maximum radial dimension of fan blade is greater than the smallest radial size of air lead ring.Be in this advantage, form big air outlet slit, cooling air can be directed on the housing to be cooled through described air outlet slit.
In a kind of favourable improvement project, fan blade is no more than a radius scope earth's axis to withdrawal on the suction side, has particularly withdrawn greater than 1/3rd of the maximal axial extension of fan blade.Be in this advantage, can load onto blower hood with little spacing, wherein can avoid the noise that produces by fan blade at intakeport or air inlet place with respect to draught fan impeller.
In a kind of favourable improvement project, each fan blade has a symmetrical plane, and the rotation axis of draught fan impeller preferably is in the described symmetry plane.Therefore formed the changeable draught fan impeller of sense of rotation in simple mode, and wherein cooling air always flows through air passageways along identical direction.
In a kind of favourable design proposal, the radial dimension of matrix is less than the external diameter of draught fan impeller, particularly than the internal diameter little at least percent 15 of air lead ring.Form favourable geometric proportion thus, cooling air can flow especially effectively under this geometric proportion.
In a kind of favourable improvement project, air passageways forms an air outlet slit respectively, and described air outlet slit comprises the subregion of radial directed and axial orientation.Therefore draught fan impeller can be on different transmission devices, particularly in the tight the place ahead of shell body wall or in upward driving of bevel gear lid (Kegelradtopf).
A kind of system, particularly the key character of the present invention of transmission device is, described system comprises a blower fan, described blower fan has the draught fan impeller and a blower hood of a band fan blade, wherein said blower hood surrounds described draught fan impeller at least in part, described blower hood has one and has the zone that a plurality of axial airs enter the mouth, wherein said fan blade has constant space with blower hood in first subregion in described zone with a plurality of axial airs inlet, and in second subregion in described zone with a plurality of axial airs inlet, the spacing of described fan blade and blower hood is greater than the constant space in described first subregion, particularly greater than the twice of this constant space.Therefore realize particularly advantageous liquidity ratio and avoid on blower hood owing to the fan blade that scanned produces noise.
In a kind of favourable improvement project, fan blade radially extends beyond described zone with a plurality of axial air inlets.Therefore can particularly advantageously suck cooling air.
In a kind of favourable improvement project, draught fan impeller is arranged on one of transmission device, particularly on the input shaft.Therefore can omit the independent motor that is used to drive draught fan impeller.
The key character of the present invention of transmission line of---described modification comprises that respectively one has blower fan and at least one gear stage of draught fan impeller---is to have a plurality of modification, draught fan impeller is installed on the input shaft of bevel gear level in first modification, and draught fan impeller is installed on the input shaft of cylindrical gears level in second modification.Preferably, in first modification, air can radially be directed by air passageways, and in second modification, air can by air passageways with one with respect to the angle of radial direction and with one with respect to the angle of axial direction, particularly the axial plane medium dip of draught fan impeller in the axis of draught fan impeller be directed.Be in this advantage, reduced the component variation in the structural series, and improved the variation possibility that is used to install blower fan.
In a kind of favourable improvement project, in first modification, the shell body wall of transmission device partly covers the subregion of the axial orientation of the air outlet slit of air passageways, particularly this air outlet slit.Therefore, cooling air advantageously can be by guiding around gear mechanism housing radially.Cause good cooling capacity thus.
Other advantages provide in the dependent claims.The present invention is not limited to the characteristics combination of claim.For those skilled in the art, particularly propose and/or from compared with prior art being proposed of task, obtain the possible scheme of other suitable combinations of the feature of claim and/or individual event claim feature and/or specification and/or accompanying drawing from task.
Description of drawings
Set forth the present invention in more detail by accompanying drawing now:
Fig. 1 is a view of seeing draught fan impeller from the place ahead,
Fig. 2 is a view of seeing the draught fan impeller Fig. 1 from the rear,
Fig. 3 is the front view of the draught fan impeller among Fig. 1,
Fig. 4 is the sectional drawing that draught fan impeller is cut open along the axial plane that marks with A-A in Fig. 3,
Fig. 5 is the view with transmission device of mounted blower fan,
Fig. 6 is the side view with the transmission device among Fig. 5 of draught fan impeller of the blower hood of incision and incision.
Reference numerals list:
10 matrixes
11 fan blades
12 air lead rings
13 wheel hubs
20 fit encircles
21 applying ribs
22 gauge ribs radially
23 outside gauge ribs
30 sections
31 first fan blades
32 second fan blades
33 first lead rings
34 second lead rings
35 frusto-conical region
36 reference directions
W1, w2, w3 angle
40 withdrawal portions
41 radial openings
42 conical surfaces
43,44 cut off circle
50 transmission devices
51 blower hoods
52 frameworks
53
54 middlewares
55 air inlets
56 air outlet slits
57 blower fans
60 gaps
61 bevel gears lid
Embodiment
Fig. 1 illustrates a draught fan impeller that is used for the transmission device blower fan.Described draught fan impeller comprises at least one matrix with wheel hub 13 10, fan blade 11 and an air lead ring 12.
Draught fan impeller is provided for being installed on of transmission device.This is inserted into described axle with wheel hub 13 goes up to be connected with this force closure ground.
Draught fan impeller drives by described axle.Said axle driving fan blade 11 produces air flows roughly radially or that outwards point to obliquely thus.The direction of air flows and the sense of rotation of draught fan impeller are irrelevant, because each fan blade 11 has a symmetrical plane, the rotation axis of draught fan impeller is in the described symmetry plane.
Fig. 2 illustrates the back side of the draught fan impeller among Fig. 1.The applying ring 20 of matrix 10 and the applying rib 21 of each fan blade 11 are in the common plane.Therefore the operation of draught fan impeller can be close on the shell body wall of transmission device and implement, wherein said plane parallel in the shell body wall of transmission device and with respect to this shell body wall with little spacing setting.
Draught fan impeller with matrix, fan blade and air lead ring is preferably made integratedly, particularly manufactures casting/pouring piece of being made by aluminium or plastics, wherein under the situation of using plastics, plastics be preferably designed to especially can conduct electricity to avoid electrostatic charging.
In a kind of optional embodiment, draught fan impeller is formed from steel.
Under installment state (as shown in FIG. 2), radially the outside gauge rib 23 and the shell body wall of gauge rib 22, air lead ring 12 form an opening, and described air flows is radially outwards guided by described opening.Therefore air lead ring 12 does not extend on the whole axial length of draught fan impeller and particularly fan blade 11.
Fig. 3 illustrates the front view according to the draught fan impeller of Fig. 1.Be furnished with fan blade 11 on matrix 10, wherein fan blade 11 has a symmetrical plane respectively, and described symmetry plane comprises the rotation axis of draught fan impeller.Therefore except that the inclined-plane on fan blade 11 surfaces, fan blade 11 is substantially perpendicular to the zone 35 annular, truncated cone shape of matrix 10.
Each fan blade 11 is arranged with angle w1 respectively about the reference direction 36 fixing with respect to blower fan.Fan blade 11 is arranged brokenly: the difference of particularly per two angle w1 not can be the integral multiple of a basic value.Therefore reduce the resonant excitation that causes by fan blade 11, particularly reduced the frequency of resonant excitation.
In a kind of favourable design proposal, draught fan impeller is installed on the transmission shaft, and the number of teeth of the quantity of fan blade and the gear of transmission shaft does not have common divisor.Particularly preferably, the number of teeth of each gear of the quantity of fan blade and transmission device does not have common divisor.Therefore, advantageously avoided resonance effect.
The irregular layout of fan blade caused, fan blade 11 through one that radially extend, spatially produce an excitation during fixing reference direction, the time history of this excitation has and the rotation period of draught fan impeller corresponding to cycle time.If mark the angle w1 of i fan blade with w1.i, wherein i is less than or equal to the total n (in embodiment 9) of fan blade 11, so by angle w1.1, and w1.2, w1.3, ..., w1.n, w1.1, w1.2, w1.3 ... continuous sequence definition the ordered series of numbers of one-period property, its minimum period length just is n.
In a kind of optional embodiment, the Cycle Length of described ordered series of numbers is greater than 1, is preferably greater than 2, is preferably greater than n/2 or numeral (n-1)/2 especially, under the situation of above-mentioned back, provides an integer in its described in the back possibility.Therefore when fan operation, and under the situation of fan blade regular arrangement, to compare, main vibrational excitation takes place in lower frequency band.
In a kind of optional embodiment, draught fan impeller has a plane of mirror symmetry, and preferably, the rotation axis of draught fan impeller is included in the described plane of mirror symmetry.
The external diameter of matrix 10 is chosen to be significantly less than the external diameter of draught fan impeller in Fig. 3.Therefore preferably, the external diameter of matrix 10 is draught fan impeller and is 2/3rds of the external diameter of air lead ring 12 that particularly preferably, the external diameter of matrix 10 has reduced 10 to percent 20 with respect to the internal diameter of air lead ring 12.Therefore can realize the favourable liquidity ratio of blower fan.
The frusto-conical region 35 of each first fan blade 31, second fan blade 32, matrix 10 by folded portion's section 30 of described first fan blade and second fan blade and air lead ring 12 form an air passageways respectively by these two fan blades, 31,32 folded portion's sections 37, air flows through described air passageways when operation.
In these air passagewayss of Xing Chenging each all has a subtended angle or angle displacement w2 like this, promptly between the fan blade 31,32 of described limited boundary, that is the angle between two immediate adjacent fan blades, each in these air passagewayss also has the angle w3 of the midplane of air passageways about reference direction 36.Therefore subtended angle w2 is drawn by the difference of the angle w1 of the fan blade 31,32 of described limited boundary respectively.Angle w3 differs one constant respectively with the angle w1 of the fan blade 31,32 of described limited boundary in according to the example of Fig. 3, that is to say and value that the fan blade number is irrelevant.The sequence of the sequence of subtended angle w2 and angle w3 has defined an irregular ordered series of numbers respectively.In the asymmetric design of air passageways and/or draught fan impeller, the relation between angle w1, w2, the w3 correspondingly changes each other.Particularly replace described midplane, can with the direction that is labeled out for example the direction of the rib of fan blade be used to define described angle.
Fig. 4 illustrates the sectional view of cutting open with the axial plane of A-A mark in Fig. 3.
Therewith correspondingly, for forming constant wall thickness, air lead ring 12 on the inboard of described axle, be formed with raised surface, wherein characteristic " projection " is meant, the line of two points on the inboard of air lead ring 12 always extends in the inside of air lead ring 12 at least in part.
Therefore the inside profile of the cross section of air lead ring 12 is crooked on the contrary as the outside profile of the radially cross section of outlet of the outside profile of the cross section of frusto-conical region 35, particularly this frusto-conical region 35.Therefore these two profiles form protrudingly, and the shape of wherein said projection is pointed to each other.
Described design by first lead ring 33 and second lead ring 34 has formed a contraction flow region and minimum separable m, and described minimum separable has caused the jet pipe effect in affiliated air passageways.
Whether in optional embodiment, the ground design of the inner bulge of air lead ring, but by two truncated cones that are connected but describe by for example cross section profile parabola shaped or circular arc.In these cases, formed cross section contraction flow region has also caused the jet pipe effect, can utilize its guiding air stream.
Fig. 5 illustrates the transmission device 50 with mounted blower fan 57.Blower hood 51 surrounds draught fan impeller.In order to show, half of blower hood 51 only is shown in Fig. 5.
The wheel hub 13 of draught fan impeller is placed on the middleware 54 and force closure ground is connected with described middleware, wherein middleware 54 be arranged on one 53 of transmission device again and at least shape be connected with described sealedly.Described axle 53 is input shafts of transmission device 50.
The diameter in described zone with air inlet 55 is identical with the internal diameter of first lead ring 33.
Fig. 6 illustrates the side view of blower fan among Fig. 5.Draught fan impeller is installed on the bevel gear lid 61.
Air can be by fan blade 11 motions, and described air is directed into air outlet slit 56 through frusto-conical region 35, first lead ring 33 and second lead ring 34.
Between the blower hood 51 and first lead ring 33, be provided with a gap 60.By with Fig. 4 more as can be seen, the withdrawal portion 40 of fan blade 11 roughly is two double-lengths of the axial dimension in gap 60 in the axial direction.
The withdrawal portion that the radially gauge rib 22 along fan blade 11 of second lead ring 34 is provided with has realized the installation of draught fan impeller on an axle of giving prominence to from the sidewall of transmission device 50.This is the situation when column gear transmission for example.In this case, draught fan impeller can be installed in tight the place ahead of described sidewall, and the air that is moved by fan blade 11 flows along shell body wall radially outwardly and therefore.Described shell body wall covers the subregion of the air outlet slit of air passageways, and promptly such subregion, this subregion are axially directed, that is its face normal is arranged to be parallel to the axis of axle.Therefore when being installed in shell body wall the place ahead, can omit between the housing of draught fan impeller and transmission device 50, the spacings by 61 generations of bevel gear lid in Fig. 6 because air is guided in this case radially outwardly.Can realize having the compact structure size of the transmission device of blower fan thus.
By the application of draught fan impeller in the different modification of transmission device, form a structural series, in the modification of this structural series, can use the assembly of this formation blower fan, particularly draught fan impeller uniformly.Therefore reduced the component variation of structural series.
Claims (33)
1. draught fan impeller with a plurality of fan blades, it is characterized in that, one first fan blade has first angle displacement with respect to the first adjacent fan blade on circumferential direction, described first fan blade has second angle displacement with respect to the second adjacent fan blade in the opposite direction, and wherein said first angle displacement is less than described second angle displacement.
2. the draught fan impeller with a plurality of fan blades is characterized in that, each fan blade comprises the angle displacement value of at least two different stages with respect to the sequence along circumferential direction along the angle displacement of the most adjacent fan blade of circumferential direction.
3. according at least one described draught fan impeller in the aforementioned claim, it is characterized in that fan blade is along circumferential direction, particularly along the circumferentially spaced apart brokenly certain distance of draught fan impeller.
4. draught fan impeller with a plurality of fan blades, it is characterized in that, be provided with a quantity n fan blade, wherein at draught fan impeller when its axis evenly rotates, fan blade forms an activation sequence through a spatially fixing reference direction time, the cycle time of this activation sequence is greater than n/one of the rotation period of draught fan impeller.
5. according to the described draught fan impeller of aforementioned claim, it is characterized in that described cycle time is more than or equal to half of the rotation period of described draught fan impeller.
6. according to the described draught fan impeller of aforementioned claim, it is characterized in that, equal the rotation period of described draught fan impeller described cycle time.
7. according at least one described draught fan impeller in the aforementioned claim, it is characterized in that, be provided with a plurality of air passagewayss, wherein each air passageways defines by fan blade, air lead ring and/or matrix at least, and the cross section of described air passageways has a minimum value in trend from inside to outside.
8. according at least one described draught fan impeller in the aforementioned claim, it is characterized in that, the minimum value of the cross section of described air passageways causes by the minimum value of the spacing between matrix and the air lead ring, particularly by causing at the cross section of the matrix with axial plane figure and minimum value with the spacing between the cross section figure of air lead ring of axial plane.
9. a draught fan impeller comprises a plurality of fan blades and an air lead ring, it is characterized in that, the cross section of described air lead ring side within it forms protrudingly and forms in its outside recessedly.
10. according to the described draught fan impeller of aforementioned claim, it is characterized in that the cross section of described air lead ring side so within it forms protrudingly and forms in its outside recessedly, make the wall thickness substantial constant of air lead ring.
11. draught fan impeller, comprise matrix, fan blade and air lead ring, wherein said matrix has a frusto-conical region, the air lead ring can be with one heart received in the mathematics awl in so, make described air lead ring in first axial region and second axial region, touch the mathematics awl, be provided with minimum separable in the 3rd axial region between described air lead ring and mathematics awl, wherein said the 3rd axial region is arranged between described first axial region and described second axial region, per at least two fan blades, a section of frusto-conical region and a section of air lead ring form an outward extending air passageways respectively.
12. according at least one described draught fan impeller in the aforementioned claim, it is characterized in that, on draught fan impeller, be formed with at least two different air passagewayss.
13. according at least one described draught fan impeller in the aforementioned claim, it is characterized in that each air passageways can be described by a physical dimension, the physical dimension sequence of air passageways is irregular sequence when blower fan rotates.
14. according at least one described draught fan impeller in the aforementioned claim, it is characterized in that the physical dimension of each air passageways is the angle of the fan blade of angle between the fan blade of described limited boundary or limited boundary with respect to a reference direction fixing with respect to blower fan.
15. according at least one described draught fan impeller in the aforementioned claim, it is characterized in that, the physical dimension of each air passageways is the angular orientation of the center of gravity or the midplane of air passageways, or a direction that is labeled out of described air passageways is with respect to the angle of a reference direction fixing with respect to blower fan.
16., it is characterized in that the center of gravity that is formed by all fan blades is in the center of blower fan according at least one described draught fan impeller in the aforementioned claim.
17., it is characterized in that the maximal axial extension of described fan blade is greater than the maximal axial extension of described air lead ring according at least one described draught fan impeller in the aforementioned claim.
18., it is characterized in that the maximal axial extension of described fan blade is greater than the twice of the maximal axial extension of described air lead ring according at least one described draught fan impeller in the aforementioned claim.
19., it is characterized in that the maximum radial dimension of described fan blade is greater than the smallest radial size of described air lead ring according at least one described draught fan impeller in the aforementioned claim.
20. according at least one described draught fan impeller in the aforementioned claim, it is characterized in that described fan blade is no more than a radius scope earth's axis to withdrawal on the suction side, particularly withdrawn greater than 1/3rd of the maximal axial extension of described fan blade.
21., it is characterized in that each fan blade has a symmetrical plane according at least one described draught fan impeller in the aforementioned claim.
22. according at least one described draught fan impeller in the aforementioned claim, it is characterized in that each fan blade has a symmetrical plane, the rotation axis of described draught fan impeller is in the described symmetry plane.
23. according at least one described draught fan impeller in the aforementioned claim, it is characterized in that described draught fan impeller has a symmetrical plane, the rotation axis of described draught fan impeller is in the described symmetry plane.
24., it is characterized in that the radial dimension of described matrix is less than the external diameter of described draught fan impeller according at least one described draught fan impeller in the aforementioned claim, particularly than the internal diameter little at least percent 15 of described air lead ring.
25. according at least one described draught fan impeller in the aforementioned claim, it is characterized in that described air passageways forms an air outlet slit respectively, described air outlet slit comprises the subregion of a radial directed and the subregion of an axial orientation.
26. system that comprises blower fan, transmission device particularly, described blower fan has the draught fan impeller and a blower hood of a band fan blade, it is characterized in that, described blower hood surrounds described draught fan impeller at least in part, described blower hood has one and has the zone that a plurality of axial airs enter the mouth, wherein said fan blade is in first subregion in described zone with a plurality of axial airs inlet and have a constant space between the blower hood, and in second subregion in described zone with a plurality of axial airs inlet, spacing between described fan blade and the blower hood is greater than the constant space in described first subregion, particularly greater than the twice of this constant space.
27., it is characterized in that described fan blade radially extends beyond described zone with a plurality of axial air inlets according at least one described system in the aforementioned claim.
28. according at least one described system in the aforementioned claim, wherein said system is a transmission device, it is characterized in that, described draught fan impeller is arranged on of described transmission device, particularly is arranged on the input shaft.
29., it is characterized in that the number of teeth of the quantity of described fan blade and the gear of described input shaft does not have common divisor according at least one described system in the aforementioned claim.
30., it is characterized in that the number of teeth of the quantity of described fan blade and each gear of described transmission device does not have common divisor according at least one described system in the aforementioned claim.
31. transmission line with modification, described modification comprises that respectively one has blower fan and at least one gear stage of draught fan impeller, it is characterized in that, draught fan impeller is installed on the input shaft of bevel gear level in first modification, and draught fan impeller is installed on the input shaft of cylindrical gears level in second modification.
32. according at least one described transmission line in the aforementioned claim, it is characterized in that, in first modification, air can radially be directed by air passageways, and in second modification, air can by air passageways with one with respect to the angle of radial direction and with one with respect to the angle of axial direction, particularly the axial plane medium dip of draught fan impeller in the axis of draught fan impeller be directed.
33. according at least one described transmission line in the aforementioned claim, it is characterized in that, in first modification, the shell body wall of transmission device partly covers the air outlet slit of air passageways, particularly covers the subregion of the axial orientation of this air outlet slit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310356217.1A CN103410775B (en) | 2007-02-23 | 2008-01-22 | Draught fan impeller, system and transmission line |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102007009369 | 2007-02-23 | ||
| DE102007009369.3 | 2007-02-23 | ||
| PCT/EP2008/000443 WO2008101577A2 (en) | 2007-02-23 | 2008-01-22 | Ventilator wheel, system and transmission line |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310356217.1A Division CN103410775B (en) | 2007-02-23 | 2008-01-22 | Draught fan impeller, system and transmission line |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101617128A true CN101617128A (en) | 2009-12-30 |
| CN101617128B CN101617128B (en) | 2013-09-18 |
Family
ID=39316429
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008800055948A Active CN101617128B (en) | 2007-02-23 | 2008-01-22 | Ventilator wheel, system and transmission line |
| CN201310356217.1A Active CN103410775B (en) | 2007-02-23 | 2008-01-22 | Draught fan impeller, system and transmission line |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310356217.1A Active CN103410775B (en) | 2007-02-23 | 2008-01-22 | Draught fan impeller, system and transmission line |
Country Status (6)
| Country | Link |
|---|---|
| EP (2) | EP2122182B1 (en) |
| CN (2) | CN101617128B (en) |
| DE (1) | DE102008010912B4 (en) |
| HU (1) | HUE045193T2 (en) |
| PL (1) | PL2122182T3 (en) |
| WO (1) | WO2008101577A2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104584390A (en) * | 2012-08-31 | 2015-04-29 | 西门子公司 | Rotor of electrical machine, and electrical machine |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102012013351A1 (en) * | 2012-07-06 | 2014-05-08 | Sew-Eurodrive Gmbh & Co Kg | Gear with a shaft |
| EP3085997B1 (en) * | 2015-04-23 | 2020-07-22 | Flender GmbH | Air guidance hood for a gearbox and gearbox with an air guidance hood |
| CN104863893B (en) * | 2015-04-30 | 2017-09-22 | 广东美的制冷设备有限公司 | Wind wheel, air channel, the preparation method of air cleaning facility and wind wheel |
| EP3204291B1 (en) * | 2015-06-01 | 2021-07-07 | SZ DJI Technology Co., Ltd. | System, kit, and method for dissipating heat generated by a motor assembly |
| EP3924646B1 (en) | 2019-02-12 | 2024-10-16 | Sew-Eurodrive GmbH & Co. KG | Drive system, comprising an electric motor, a transmission and an adapter having a fan |
| EP3948028B1 (en) * | 2019-03-26 | 2024-11-13 | Sew-Eurodrive GmbH & Co. KG | Transmission having a fan assembly |
| US11885406B2 (en) * | 2020-03-13 | 2024-01-30 | Sew-Eurodrive Gmbh & Co. Kg | Transmission having a fan assembly |
| DE102021206105A1 (en) * | 2021-06-15 | 2022-12-15 | Dana Motion Systems Deutschland GmbH | Transmission fan shroud assembly, method of manufacture, assembly and modular kit |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH409224A (en) * | 1959-06-10 | 1966-03-15 | Siemens Ag | Multi-blade fan with uneven pitch of the blades, especially radial fans for ventilating electrical machines |
Family Cites Families (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1447915A (en) | 1920-10-06 | 1923-03-06 | American Blower Co | Centrifugal fan |
| US1447916A (en) * | 1920-12-18 | 1923-03-06 | American Blower Co | Centrifugal fan |
| US3179329A (en) | 1961-08-16 | 1965-04-20 | Ruth D Mayne | Turbine type blower wheel |
| US3285502A (en) * | 1965-01-25 | 1966-11-15 | Brookside Corp | Balanced fan construction |
| GB1293553A (en) | 1969-02-18 | 1972-10-18 | Cav Ltd | Radial flow fans |
| US4046489A (en) * | 1975-10-08 | 1977-09-06 | Eagle Motive Industries, Inc. | Aerodynamic fan blade |
| JPS5644495A (en) * | 1979-09-20 | 1981-04-23 | Nissan Motor Co Ltd | Impeller for centrifugal compressor |
| GB2090338B (en) | 1980-12-31 | 1984-05-10 | Birmid Qualcast Home & Garden | Centrifugal fan |
| US5000660A (en) | 1989-08-11 | 1991-03-19 | Airflow Research And Manufacturing Corporation | Variable skew fan |
| DE3842697A1 (en) | 1988-12-19 | 1990-06-21 | Standard Elektrik Lorenz Ag | HIGH PRESSURE BLOWER |
| JP2929834B2 (en) * | 1992-04-13 | 1999-08-03 | ダイキン工業株式会社 | Centrifugal fan |
| US5348447A (en) * | 1992-12-30 | 1994-09-20 | J & D Sales | Improved fan housing with easy access |
| US5474427A (en) * | 1993-10-12 | 1995-12-12 | J & D Sales Of Eau Claire Wisconsin | Fan screen assembly |
| US5478201A (en) * | 1994-06-13 | 1995-12-26 | Carrier Corporation | Centrifugal fan inlet orifice and impeller assembly |
| US5996685A (en) * | 1995-08-03 | 1999-12-07 | Valeo Thermique Moteur | Axial flow fan |
| SE508332C2 (en) | 1995-09-07 | 1998-09-28 | Pm Luft | Centrifugal Impeller |
| US6082969A (en) | 1997-12-15 | 2000-07-04 | Caterpillar Inc. | Quiet compact radiator cooling fan |
| US6213718B1 (en) * | 1998-04-27 | 2001-04-10 | Emerson Electric Co. | Air circulation fan with removable shroud |
| JP3982181B2 (en) * | 2001-01-29 | 2007-09-26 | ダイキン工業株式会社 | Fan guard for blower unit |
| US6514036B2 (en) * | 2001-04-27 | 2003-02-04 | Black & Decker Inc. | Radial flow fan with impeller having blade configuration for noise reduction |
| DE10122516B4 (en) | 2001-05-09 | 2006-10-19 | Mtu Friedrichshafen Gmbh | Wheel |
| US7191613B2 (en) * | 2002-05-08 | 2007-03-20 | Lg Electronics Inc. | Turbo fan and air conditioner having the same applied thereto |
| DE102005031197B4 (en) | 2005-07-01 | 2016-10-13 | Sew-Eurodrive Gmbh & Co Kg | Drive and fan |
-
2008
- 2008-01-22 EP EP08707176.7A patent/EP2122182B1/en active Active
- 2008-01-22 CN CN2008800055948A patent/CN101617128B/en active Active
- 2008-01-22 PL PL08707176T patent/PL2122182T3/en unknown
- 2008-01-22 HU HUE08707176A patent/HUE045193T2/en unknown
- 2008-01-22 WO PCT/EP2008/000443 patent/WO2008101577A2/en active Application Filing
- 2008-01-22 CN CN201310356217.1A patent/CN103410775B/en active Active
- 2008-01-22 EP EP17000355.2A patent/EP3214316B1/en active Active
- 2008-02-25 DE DE102008010912.6A patent/DE102008010912B4/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH409224A (en) * | 1959-06-10 | 1966-03-15 | Siemens Ag | Multi-blade fan with uneven pitch of the blades, especially radial fans for ventilating electrical machines |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104584390A (en) * | 2012-08-31 | 2015-04-29 | 西门子公司 | Rotor of electrical machine, and electrical machine |
| CN104584390B (en) * | 2012-08-31 | 2017-02-22 | 西门子公司 | Rotor of electrical machine, and electrical machine |
| US9787163B2 (en) | 2012-08-31 | 2017-10-10 | Siemens Aktiengesellschaft | Rotor of an electrical machine and electrical machine |
Also Published As
| Publication number | Publication date |
|---|---|
| PL2122182T3 (en) | 2019-10-31 |
| HUE045193T2 (en) | 2019-12-30 |
| EP2122182A2 (en) | 2009-11-25 |
| EP3214316A1 (en) | 2017-09-06 |
| CN101617128B (en) | 2013-09-18 |
| WO2008101577A2 (en) | 2008-08-28 |
| CN103410775B (en) | 2016-08-10 |
| DE102008010912B4 (en) | 2020-11-12 |
| EP2122182B1 (en) | 2019-05-01 |
| DE102008010912A1 (en) | 2008-08-28 |
| EP3214316B1 (en) | 2019-08-07 |
| WO2008101577A3 (en) | 2008-10-16 |
| CN103410775A (en) | 2013-11-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101617128B (en) | Ventilator wheel, system and transmission line | |
| CN101617127B (en) | Ventilator wheel, system and transmission line | |
| KR100873521B1 (en) | Vortex Type Local Exhaust System | |
| JP5012736B2 (en) | Centrifugal blower | |
| EP1443215B1 (en) | Integral tip seal in a fan-shroud structure | |
| JP5466315B2 (en) | Blower assembly | |
| US8721280B2 (en) | Propeller fan | |
| TWI394895B (en) | Centrifugal fans and air fluid machinery using the centrifugal fan | |
| EP2980412A1 (en) | Electric blower | |
| JP5449117B2 (en) | Rotating machine | |
| US20050164628A1 (en) | Local exhaust ventilator with rotating swirler | |
| CN104903589A (en) | Shrouded axial fan with casing treatment | |
| US7267526B2 (en) | Heat-dissipating device | |
| JP5029024B2 (en) | Centrifugal compressor | |
| US20080187439A1 (en) | Blower assembly with pre-swirler | |
| KR20080094413A (en) | Local ventilator for variable swirl | |
| JP2010090835A (en) | Multi-blade centrifugal fan and air conditioner using the same | |
| US9523370B2 (en) | Blower with curved blades | |
| US7771169B2 (en) | Centrifugal multiblade fan | |
| US9655278B2 (en) | Slim fan structure | |
| WO2006035724A1 (en) | Vertical shaft centrifugal pump, rotor for the pump, and air conditioner | |
| JP4519734B2 (en) | Rotating impeller and propeller fan | |
| JP2009013923A (en) | Centrifugal blower | |
| KR200276467Y1 (en) | Blower | |
| JP7317235B2 (en) | Multi-blade impeller and centrifugal blower |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |