EP0851123A2 - Pompe à palettes - Google Patents

Pompe à palettes Download PDF

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Publication number
EP0851123A2
EP0851123A2 EP97121017A EP97121017A EP0851123A2 EP 0851123 A2 EP0851123 A2 EP 0851123A2 EP 97121017 A EP97121017 A EP 97121017A EP 97121017 A EP97121017 A EP 97121017A EP 0851123 A2 EP0851123 A2 EP 0851123A2
Authority
EP
European Patent Office
Prior art keywords
area
wing
kidney
lower wing
vane
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
Application number
EP97121017A
Other languages
German (de)
English (en)
Other versions
EP0851123B1 (fr
EP0851123A3 (fr
Inventor
Ivo Agner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LuK Fahrzeug Hydraulik GmbH and Co KG
Original Assignee
LuK Fahrzeug Hydraulik GmbH and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from DE19710378A external-priority patent/DE19710378C1/de
Application filed by LuK Fahrzeug Hydraulik GmbH and Co KG filed Critical LuK Fahrzeug Hydraulik GmbH and Co KG
Publication of EP0851123A2 publication Critical patent/EP0851123A2/fr
Publication of EP0851123A3 publication Critical patent/EP0851123A3/fr
Application granted granted Critical
Publication of EP0851123B1 publication Critical patent/EP0851123B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
    • F01C21/08—Rotary pistons
    • F01C21/0809—Construction of vanes or vane holders
    • F01C21/0818—Vane tracking; control therefor
    • F01C21/0854—Vane tracking; control therefor by fluid means
    • F01C21/0863—Vane tracking; control therefor by fluid means the fluid being the working fluid
    • 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
    • F04C2270/00—Control; Monitoring or safety arrangements
    • F04C2270/70—Safety, emergency conditions or requirements
    • F04C2270/701—Cold start

Definitions

  • the invention relates to a vane machine, in particular vane pump, with those in the preamble of claim 1 mentioned features.
  • Vane cell machines of the generic type have a rotor that is inside a cam ring arranged in a housing rotates.
  • the cam ring has one to the axis of rotation of the rotor non-coaxial contour and at least forms a pump room.
  • the rotor has radial running slots in which radially movable wings are arranged. When the rotor rotates the wings are guided along the contour of the cam ring, with chambers between two adjacent wings with changing volumes.
  • a suction area and a pressure area are formed, wherein the suction area increases in the area Volumes and the pressure area in the area shrinking Volumes is arranged.
  • the suction area is with a suction connection of the vane machine and the pressure area with a pressure connection Vane machine connected so that a fluid for example oil.
  • under-wing pump the one lower wing kidney arranged in the suction area having.
  • the underwing kidney is over a fluid connection in a delimiting the pump chamber Side surface arranged.
  • This underwing kidney is with the pressure range of the vane pump connected.
  • the lower wing kidney is arranged that they are in the range of motion of lower wing chambers located below the wings in the Rotor introduced slots are formed.
  • the Lower wing kidney extends over one certain range of rotation, so that there are several Lower wing chambers at the same time in the area of the lower wing kidney are located. This results in a Fluid connection between the lower wing chambers and the lower wing kidney, the total area of which is the sum of the partial areas of the individual, especially with the lower wing kidney contacting lower wing chambers corresponds.
  • the lower wing chambers change their - Seen in cross section - areas, so that the total area varies.
  • Partial area of the fluid connection becomes the free one Cross-sectional area of the fluid connection between the Under wing groove and that in the area of an under wing groove understood under wing chambers.
  • the volume flow pulsation of the underfloor pump is superimposed with the volume flow pulsation of the wing pump to a total volume flow pulsation of the Vane pump.
  • the Lower wing kidney which is assigned to the suction area, over a relatively large rotation angle range of the rotor, so that also in the range of motion Lower wing pressure kidneys located under wing chambers only over a relatively small range of rotation angles can extend.
  • These underwing pressure kidneys are standing also over the lower wing chambers and one, in a second side surface circumferential groove or four kidneys, which have fluid connections with each other, which is open to the lower wing chambers with of the underwing kidney.
  • the underwing pressure kidneys learn about the underwing kidney, the lower wing chambers and the surrounding one Use a pressure build-up that corresponds to the inward movement the wing when entering it in the pressure area counteracts the vane pump and this inward movement should dampen.
  • the invention has for its object a vane machine, in particular vane pump the Generic type to create, which is characterized by a good pulsation behavior of the underfloor pump and characterized by good cold start behavior.
  • this object is achieved with a vane machine, in particular vane pump, solved, which has the features mentioned in claim 1. Because the lower wing kidney over a rotation angle range of preferably 58 ° to 71 ° extends and the total area of the fluid connection essentially constant with rotation of the rotor remains, it is possible to get a little pulsation through the essentially cost-effective total area to achieve the fluid connection and at the same time due to the fact that it only covers a range of rotation angles lower wing kidney extending from 58 ° to 71 ° Space is available over a larger angle range to have the one for training the underwing pressure kidney is available, so that this good cold start and high speed behavior is guaranteed.
  • the underwing kidney and that of the underwing kidney opposite groove section one Identically changing over the angle of rotation of the wings Show contour, that is, they are mirror images educated. This ensures that the changing over the rotary movement of the rotor Areas of the individual lower wing chambers (partial areas) according to the current position of the rotor be taken into account and so essentially one constant total area of the fluid connection over the entire lower wing kidney can be guaranteed. It is particularly preferred if one is, preferably continuous, reducing contour section, with vane pump operation in the direction of rotation of the rotor considered, provided at the end of the lower wing groove is. As a result, an increase in area is very advantageous through a lower wing chamber that just enters the area of the lower wing kidney, balanced, so the total area is essentially can be kept constant.
  • the underwing kidney with respect to the Suction area is arranged so that the retraction an under-wing chamber in the area of the under-wing kidney and extending another one at the same time Lower wing chamber from the area of the lower wing kidney in an angular position of the rotor, in which the kinematic volume flow of the underfloor pump has its minimum. This will achieved that the flow rate at this time has a low slope, so that Volume flow pulsation of the underfloor pump through the Area switching is influenced only minimally.
  • FIG 1 shows a partial view of an open, as Vane pump 10 trained vane machine.
  • the vane pump 10 has an inside a housing 12 rotatably arranged cam ring 14.
  • the cam ring 14 includes an interior 16, within which a rotor 18 is arranged.
  • One in following called contour 20 inner contour of the Hubrings 14 is chosen so that there are two diametrically opposite pump spaces 22 between the outer circumference of the rotor 18 and the inner surface of the cam ring 14 result.
  • the contour 20 has a so-called Small circle 24, the diameter of which is essentially corresponds to the outer diameter of the rotor 18.
  • the contour 20 has a so-called Great circle 26 whose diameter is larger than the outer diameter of the rotor 18 so that it is Training of the pump rooms 22 comes.
  • the transition areas between the small circle 24 and the great circle 26 have a certain course, based on of Figures 2 and 3 is discussed in more detail.
  • the rotor 18 is distributed over its circumferential surface 28 radially extending slots 30.
  • the slots 30 are each 36 ° in the circumferential direction spaced from each other.
  • Within the Slots 30 are radially movable wings 32 ', 32' ' and 32 '' 'arranged, of which for the sake of clarity only three are shown.
  • the slots 30 and the wings extend over the entire Width of the rotor 18.
  • Each pump chamber 22 has a suction area 34 and a Assigned pressure range 36.
  • the suction area 34 is via a suction kidney 38 with a suction connection Vane pump 10 connected during the pressure range 36 via a pressure kidney 40 with a pressure connection the vane pump 10 is connected.
  • the interior 16 and thus the pump rooms 22 are on both sides of side surfaces 56 and 58 ( Figures 6 to 8) closed, of which the one in Figure 1 is not is shown, so that you virtually into the pump room 16 looks into it.
  • the side surfaces are firm with the Housing 12 and / or the cam ring 14 connected and lie close to the side surfaces of the rotor 18 respectively the side edges of the wing 32.
  • the pump chambers 22 are closed almost pressure-tight.
  • One of the side surfaces for example by the housing 12 is formed, has each suction area a lower wing kidney assigned to a pump chamber 22 42, the one not shown Fluid connection with the pressure area of the vane pump 10 communicates.
  • the underwing kidney 42 extends over an angle ⁇ of 70 °.
  • the angle ⁇ of 70 ° is for the embodiment shown chosen and can in other embodiments, referred to later is in a range between 58 ° and 71 ° lie.
  • the lower wing kidneys 42 lie in a range of motion of under wing chambers 44, which within the Rotor 18 between the wings 32 and the bottom of the Slots 30 are formed. It is also in the range of motion of the lower wing chambers 44 angularly offset one lower wing pressure kidney for each of the lower wing kidneys 42 46 arranged.
  • the lower wing pressure kidneys 46 are formed by depressions in the side surface and seen from above, still have one explanatory contour.
  • the lower wing kidneys 42 have a top view a contour, which is characterized in that in Direction of rotation 48 of the rotor 18 seen, first a first constant contour section 50 is provided, whose radial inner and outer boundary surface in run essentially concentrically to each other. Of the first contour section 50 goes into one, mainly determined by the wing shape, preferably continuously widening contour section 52, in the end, preferably a continuously tapering contour section 54 closes.
  • the further side surface for example from a cover of the vane pump 10 can be formed, has an im Movement range of the lower wing chambers 44 revolving Groove that is open towards the lower wing chambers is.
  • This groove has a contour that is opposite the lower wing kidneys 42 and the lower wing pressure kidneys 46 exactly the same contour as the lower wing kidneys 42 and the lower wing pressure kidneys 46 has.
  • this circumferential groove is trained continuously so that a continuous Fluid connection guaranteed over the entire circumference of the groove is.
  • the groove also be formed by four kidneys, one below the other are in fluid communication. These kidneys are located according to the position in direct association with the lower wing kidneys 42 and the lower wing pressure kidneys 46.
  • the fluid connection can be in the side surface or in Be designed rotor.
  • the function of the vane pump 10 is general known, so that only the essentials are given here becomes.
  • the rotor 18 is offset in the rotational movement — in the direction of rotation 48, whereby the wings 32 ', 32' 'and 32' '' on be guided along the contour 20.
  • the wings are radial driven outwards, so that between two adjacent wings a chamber with an enlarging Volume forms. This will over the suction kidney 38 a fluid is sucked into the suction area 34.
  • the pressure area 36 In the transition area between great circle 26 and small circle 24, the pressure area 36, the wings 32 pushed radially inwards so that the volume the chamber between two adjacent wings 32 is reduced and a fluid previously sucked in here via the Pressure kidneys 40 is pressed out. According to the The speed of the rotor 18 is therefore a certain one Volume flow of a pumped fluid. This delivered fluid is above that not shown Connection also in the assigned to the suction areas 34 Lower wing kidneys 42. On the lower wing kidneys 42 the lower wing chambers 44 are moved past. Since the wings 32 in the suction area 34 are radial driving outwards increases in this area the free cross-sectional area between the lower wing chambers 44 and the underwing kidney 42.
  • Underfloor chambers 44 conveyed fluid pushes below the wings 32 radially outwards. This will ensures that these are securely attached to the inner contour 20 apply and thus adjacent chambers between two wings 32 are sealed.
  • Corresponding the position of the rotor 18 are always at least two lower wing chambers 44 in the area an underwing kidney 42. This results in a Total sum of an area that is made up of the subareas the just in the area of the lower wing kidney 42 located under wing chambers 44 is formed.
  • the moving wings and the changing ones Total underfloor chamber volumes a pulsating volume flow (under-wing pump), the above fluid connection to the pressure area the pump is connected.
  • the volume flow and the speed of the fluid flow is in turn dependent of the variability of the total area mentioned above.
  • This volume flow pulsation is superimposed on the Volume flow pulsation of the upper wing pump with opposite Sign, so that a total compensation the volume flow pulsation in the entire vane pump 10 takes place.
  • the volume flow pulsation the under-wing pump is therefore within certain limits he wishes.
  • This volume flow pulsation of the underfloor pump is essentially dependent on the kinematics the vane pump 10, that is, the speed of the rotor 18 and the radial movement of the Wing and the total area of just overlapping with the under-wing kidney 42 located under-wing chambers 44.
  • Figures 2 and 3 is a development of the contour 20 of the cam ring 14 over the angle of rotation of a wing 32 ', 32' ', 32' '' shown. The consideration takes place starting from one designated by A in FIG Point that corresponds to the zero point over a full 360 ° rotation.
  • Figure 2 shows the radial Stroke H of a wing
  • Figure 3 is the radial V wing speed 32 ', 32' ', 32' '' shows.
  • FIG 4 the volume flow Q of the under-wing pump shown.
  • the volume flow Q shown here is by a vane pump shown in Figure 1 10 offset by ten by 36 ° to each other Wings 32 realized.
  • the volume flow Q pulsates in this case around a fixed point (zero line), with that of area enclosed by the curve below the line corresponds to suction of the underfloor pump and the one enclosed by the curve above the zero line Area corresponds to pressing the under-wing pump.
  • a minimum of this course is determined by the turning point marked with point B in increasing branch of the stroke H, which with the maximum of radial speed v coincides.
  • the maximum of the volume flow Q coincides with point C. designated turning point in the falling branch of the stroke H, the one with the minimum radial velocity v coincides.
  • Figures 2 and 3 the Definition of points B and C for each Wing, while in Figure 4 the course of the volume flow Q for the overlay of a total of ten Wings is shown.
  • This section represents a on the one hand the section in which the total area the lower wing chambers 44 slightly smaller is as the assumed fixed value.
  • this section is placed so that he with the minimum of the volume flow Q of the lower wing chambers coincides. The minimum is determined -As already explained- by the point B designated turning point of the contour 20.
  • the lower wing kidney 42 is now such in the side surface arranged in a fixed position with respect to the point B results in the following: the wing 32 'is just moving in the area of the underwing kidney 42 during the Wing 32 '' 'straight from the area of the lower wing kidney 42 extends. Hereby takes place at this time an area switch when overlaying the total area all in the area of the underwing kidney 42 located under wing chambers 44 instead. Based This is illustrated in the lower illustration in FIG. 5 , whereby it can be seen that the surface course the lower wing chamber 44 '' 'in the area point B or section a straight starts making a quantitative contribution to the total area to afford while the area of the lower wing chamber 44 'just their share of the total area completed.
  • the main part of the total area is in the moment from the lower wing chamber 44 ''. This is achieved by the underwing kidney 42 over an angular range of the angle ⁇ of 70 ° extends and the imaginary center or bisector of this angle coincides with point B, or the middle of the lower wing kidney 42 in an angular range of ⁇ 5 ° to point B lies.
  • the angular extent of the angle ⁇ can be dependent from the actual structure of the vane pump 10, in particular the width of the slots 30 and thus the under wing chambers 44, vary.
  • the angle ⁇ becomes smaller the wider the slots 30 in their coming into contact with the underwing kidney 42 are lower range.
  • the angle is ⁇ also on the type of underground formation, simple slot with radius or slot with additional Extension at the slot base in a so-called Teardrop shape, dependent.
  • FIGS. 6 to 8 show the previously explained however, side faces not shown in FIG. 1 56 and 58 shown.
  • FIG. 6 shows the side surface 56, which, for example, part of the housing 12 of the Vane pump 10 can be.
  • the Side surface 58 shown, for example, by a cover of the vane pump 10 are formed can.
  • the side surfaces 56 and 58 are on both sides to the pump chamber 16.
  • the side surface 56 has the lower wing kidneys, shown hatched here 42. Also here are the lower wing pressure kidneys 46, the pressure kidneys 40 and the suction kidneys 38 are provided.
  • underwing pressure kidneys 46 over a relatively large angular range extend from about 90 ° and a first Have section 60, the - in cross section or seen in the radial direction, a relative has a broad structure. Section 60 goes into a section 61, the width of which in Radial direction measured width of the groove 62 corresponds. This will make a good cold start and High speed behavior of the vane pump 10 reached.
  • the vane pump 10 is thus distinguished due to good cold start and high speed behavior and due to the design and arrangement of the lower wing kidney 42 by one already explained in detail low pulsation.
  • the peripheral groove 62 can be seen in FIG is incorporated into the side surface 58 and to the pump room 16 is open.
  • the groove 62 has one Contour that is identical to the contour of the lower wing kidneys 42 and the lower wing pressure kidneys 46. In Figure 8, this is in the superimposed Representation of the side surfaces 56 and 58 can be seen.
  • the lower side surface 58 is with the one folded over, reversed to figure 6 side surface 56 shown so that the contour of the lower wing kidneys 42 and Lower wing pressure kidneys 46 with the corresponding Cover the contour sections of the groove 62 exactly.
  • connection between the under wing chambers 44 and the groove 62 exactly that same area conditions as on the Connection of the lower wing chambers 44 to the lower wing kidneys 42 or the lower wing pressure kidneys 46.
  • the groove 62 only has this indicated at 64 connections which are a fluid connection between the lower wing kidneys 42 over the Lower wing chambers 44 and groove 62 with the lower wing pressure kidneys 46 form.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
EP97121017A 1996-12-23 1997-11-29 Pompe à palettes Expired - Lifetime EP0851123B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19654831 1996-12-23
DE19654831 1996-12-23
DE19710378A DE19710378C1 (de) 1996-12-23 1997-03-13 Flügelzellenmaschine, insbesondere Flügelzellenpumpe
DE19710378 1997-03-13

Publications (3)

Publication Number Publication Date
EP0851123A2 true EP0851123A2 (fr) 1998-07-01
EP0851123A3 EP0851123A3 (fr) 1999-06-09
EP0851123B1 EP0851123B1 (fr) 2003-07-09

Family

ID=26032893

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97121017A Expired - Lifetime EP0851123B1 (fr) 1996-12-23 1997-11-29 Pompe à palettes

Country Status (3)

Country Link
US (1) US6244830B1 (fr)
EP (1) EP0851123B1 (fr)
JP (1) JP4141522B2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10015020A1 (de) * 2000-03-25 2001-09-27 Zf Lenksysteme Gmbh Verdrängerzellenpumpe
US8992184B2 (en) 2009-06-12 2015-03-31 Mahle International Gmbh Lubricant pump system

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997027883A1 (fr) * 1996-02-01 1997-08-07 Daiken Iki Co., Ltd. Procede et un appareil d'elimination de dechets liquides y compris les humeurs, et appareil a cet effet
US6655936B2 (en) * 2001-11-14 2003-12-02 Delphi Technologies, Inc. Rotary vane pump with under-vane pump
JP4193554B2 (ja) * 2003-04-09 2008-12-10 株式会社ジェイテクト ベーンポンプ
KR101162780B1 (ko) * 2003-06-30 2012-07-04 루크 화조그-하이드로릭 게엠베하 앤 컴퍼니. 카게 펌프
DE102004060551A1 (de) * 2004-12-16 2006-06-22 Robert Bosch Gmbh Flügelzellenpumpe
CA2679776A1 (fr) * 2008-10-08 2010-04-08 Magna Powertrain Inc. Pompe a ailettes, a commande directe de debit
WO2010051640A1 (fr) * 2008-11-07 2010-05-14 Stt Technologies Inc., A Joint Venture Of Magna Powertrain Inc. And Shw Gmbh Pompe à huile électrique intégrée entièrement immergée
US8696326B2 (en) * 2009-05-14 2014-04-15 Magna Powertrain Inc. Integrated electrical auxiliary oil pump
DE102009048320A1 (de) * 2009-10-05 2011-04-07 Mahle International Gmbh Schmierstoffpumpe
JP5514068B2 (ja) * 2010-10-22 2014-06-04 カヤバ工業株式会社 ベーンポンプ
DE102011084405B4 (de) * 2011-10-13 2021-05-27 Zf Friedrichshafen Ag Saugaufgeladene Pumpe zum Fördern einer Flüssigkeit
DE102013105436A1 (de) * 2013-05-28 2014-12-04 Zf Lenksysteme Gmbh Verdrängerpumpe, insbesondere flügelzellenpumpe
DE102019127389A1 (de) * 2019-10-10 2021-04-15 Schwäbische Hüttenwerke Automotive GmbH Flügelzellenpumpe

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2097475A (en) * 1981-04-23 1982-11-03 Gen Motors Corp Sliding-vane rotary pump
US4697990A (en) * 1985-01-25 1987-10-06 Mannesmann Rexroth Gmbh Variable capacity vane pump with means to vary the area of overlap
US5147183A (en) * 1991-03-11 1992-09-15 Ford Motor Company Rotary vane pump having enhanced cold start priming

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4183723A (en) * 1975-04-30 1980-01-15 Sundstrand Corporation Rotary vane pump having multi-independent outputs due to stator surfaces of different contour
US4355965A (en) * 1980-02-04 1982-10-26 Atlantic Richfield Company Rotary sliding vane device with radial bias control
US4354809A (en) * 1980-03-03 1982-10-19 Chandler Evans Inc. Fixed displacement vane pump with undervane pumping
JP2867285B2 (ja) * 1990-03-09 1999-03-08 自動車機器株式会社 ベーンポンプ
DE4209840A1 (de) * 1992-03-26 1993-09-30 Zahnradfabrik Friedrichshafen Flügelzellenpumpe

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2097475A (en) * 1981-04-23 1982-11-03 Gen Motors Corp Sliding-vane rotary pump
US4697990A (en) * 1985-01-25 1987-10-06 Mannesmann Rexroth Gmbh Variable capacity vane pump with means to vary the area of overlap
US5147183A (en) * 1991-03-11 1992-09-15 Ford Motor Company Rotary vane pump having enhanced cold start priming

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10015020A1 (de) * 2000-03-25 2001-09-27 Zf Lenksysteme Gmbh Verdrängerzellenpumpe
US8992184B2 (en) 2009-06-12 2015-03-31 Mahle International Gmbh Lubricant pump system

Also Published As

Publication number Publication date
EP0851123B1 (fr) 2003-07-09
EP0851123A3 (fr) 1999-06-09
JPH10196558A (ja) 1998-07-31
JP4141522B2 (ja) 2008-08-27
US6244830B1 (en) 2001-06-12

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