EP1828609A1 - Flügelzellenpumpe - Google Patents
FlügelzellenpumpeInfo
- Publication number
- EP1828609A1 EP1828609A1 EP05813372A EP05813372A EP1828609A1 EP 1828609 A1 EP1828609 A1 EP 1828609A1 EP 05813372 A EP05813372 A EP 05813372A EP 05813372 A EP05813372 A EP 05813372A EP 1828609 A1 EP1828609 A1 EP 1828609A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rotor
- rotation
- annular groove
- groove
- pressure
- 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
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
- F04C2/00—Rotary-piston machines or pumps
- F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C2/34—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members
- F04C2/344—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
- F04C2/3441—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation
- F04C2/3442—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation the surfaces of the inner and outer member, forming the working space, being surfaces of revolution
-
- 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 pump according to the preamble of claim 1.
- Rotor has distributed over its circumference a plurality of grooves which extend at least substantially radially to the axis of rotation of the rotor and in each of which a wing-shaped conveying element is guided displaceably.
- the pump housing has a surrounding the rotor, to its axis of rotation eccentric peripheral wall, against which the wings with their radially outer ends.
- the pump housing has in the direction of the axis of rotation of the rotor to these adjacent housing end walls.
- the wings are held due to the centrifugal forces with a rotating rotor in abutment against the peripheral wall, but especially at start-up of the vane pump at low speed only small Centrifugal forces act, so that the vane pump promotes little.
- an annular groove extending over part of the circumference of the rotor is provided in a housing end wall, which is supplied with compressed medium from another feed pump, which forms a common pump arrangement with the vane pump.
- the annular groove is connected to the radially inner areas bounded by the vanes in the grooves of the rotor through the wings. Due to the increased pressure in the inner regions of the grooves, the wings are pressed in addition to the centrifugal force radially outward to the peripheral wall.
- the vane pump according to the invention with the features according to claim 1 has the advantage that a
- Pressurization of the radially inner inner regions of the grooves of the rotor is effected by the pressure generated by the vane pump itself.
- the pressurization of the inner regions of the grooves of the rotor is improved.
- a drag flow is produced, through which an increase in pressure in the annular groove is effected, which in turn leads to an increase in pressure in the connection with the annular groove
- FIG. 1 shows a vane pump in a simplified representation in a cross section along line II in Figure 2
- Figure 2 shows the vane pump according to a first embodiment in a cross section along line II-II in Figure 3
- Figure 3 the vane pump in a longitudinal section along line III- III in Figure 1
- Figure 4 the vane pump in a cross section according to a second embodiment.
- FIGS. 1 to 4 show a vane pump, which is preferably provided for conveying fuel, in particular diesel fuel. Through the vane pump while fuel from a Reservoir fed to a high pressure pump.
- the vane pump may be arranged separately from the high pressure pump, attached to the high pressure pump or integrated into the high pressure pump.
- the vane pump has a pump housing 10, which is designed in several parts, and a drive shaft 12, which projects into the pump housing 10.
- the pump housing 10 has two
- housing end walls 14,16 through which in the axial direction, that is, in the direction of the axis of rotation 13 of the drive shaft 12, a pump chamber is limited.
- the pump chamber is bounded by a peripheral wall 18, which may be formed integrally with one of the housing end walls 14,16 or separated from them.
- a rotor 20 is arranged, which is rotatably connected to the drive shaft 12, for example via a tongue and groove connection 22.
- the rotor 20 has a plurality of distributed over its circumference, at least substantially radially to the axis of rotation 13 of the rotor 20 extending grooves 24th on.
- the grooves 24 extend, starting from the outer jacket of the rotor 20, towards the axis of rotation 13 and into the rotor 20.
- four grooves 24 are provided, wherein fewer or more than four grooves 24 may be provided.
- a disk-shaped conveying element 26 is slidably disposed, which is referred to below as a wing and protrudes with its radially outer end portion of the groove 24.
- the inside of the peripheral wall 18 of the pump housing 10 is formed eccentrically to the axis of rotation 13 of the rotor 20, for example circular or other shape.
- a suction area is provided, in which at least one suction opening 28 opens.
- In the suction region is preferably in at least one housing end wall 14,16 an elongated in the circumferential direction of the rotor 20, approximately kidney-shaped curved suction groove 30th formed, in which the suction opening 28 opens.
- the suction opening 28 opens into the suction groove 30, preferably in its counter to the direction of rotation 21 of the rotor 20 facing end region.
- the suction opening 28 is connected to an inlet leading from the reservoir.
- a pressure region is provided in at least one housing end wall 14,16, in which at least one pressure port 32 opens.
- a pressure groove 34 which is elongate in the circumferential direction of the rotor 20 and is approximately kidney-shaped, is preferably formed in at least one housing end wall 14,16, into which the pressure opening 32 opens.
- the pressure opening 32 opens into the pressure groove 34, preferably in its end region pointing in the direction of rotation 21 of the rotor 20.
- the pressure port 32 is connected to a leading to the high-pressure pump drain.
- Suction port 28, the suction groove 30, the pressure port 32 and the pressure groove 34 are arranged at a radial distance from the rotational axis 13 of the rotor 20 near the inside of the peripheral wall 18.
- the wings 26 abut with their radially outer ends on the inside of the peripheral wall 18 and slide on this during the rotational movement of the rotor 20 in the direction of rotation 21 along.
- the eccentric formation of the inside of the peripheral wall 18 with respect to the axis of rotation 13 of the rotor 20 results between the wings 26 chambers 36 with variable volume.
- Suction groove 30 and the suction opening is arranged in a peripheral region, in which the volume of the chambers 36 increases during the rotational movement in the direction of rotation 21 of the rotor 20, so that they are filled with fuel.
- the pressure groove 34 and the pressure port 32 is in one
- an annular groove 38 is provided, which is connected to the pressure groove 34 via a connecting groove 40.
- the annular groove 38 extends at such a radial distance from the axis of rotation 13 of the rotor 20, that this is opposite to the limited by the wings 26 in the grooves 24 of the rotor 20 radially inner interior regions.
- the annular groove 38 is formed at least approximately concentric to the axis of rotation 13 of the rotor 20 and between this and the drive shaft 12, a sealing region 39 is formed, in which between the rotor 20 and the adjacent housing end wall 14,16 only a small axial distance is present. In the area around the drive shaft 12, only a slight pressure prevails, so that there is a pressure gradient between the annular groove 38 and the area around the drive shaft 12.
- Connecting groove 40 extends such that it approaches in the direction of rotation 21 of the rotor 20 of the annular groove 38. Furthermore, the connecting groove 40 is preferably curved, in particular helically curved. The connecting groove 40 preferably opens on the one hand at least approximately tangentially into the pressure groove 34 and / or on the other hand at least approximately tangentially in the annular groove 38. Preferably, the connecting groove 40 opens in the counter to the direction of rotation 21 of the rotor 20 facing end portion of the pressure groove 34.
- Ring groove 38 with the pressure groove 34 prevails in the annular groove 38 and thus in the associated with this inner regions of the grooves 24 of the rotor 20, an increased pressure, by which the contact force of the wings 26 is reinforced on the inside of the peripheral wall 18, whereby the
- annular groove 38 and connecting them with the pressure groove 34 connecting groove 40 is arranged or it can be arranged in both housing end walls 14 and 16 each have an annular groove 38 and a connecting groove 40, which then preferably mirror images of each other in the housing end walls 14 and 16 are arranged. It can also be provided that an annular groove 38 is arranged in both housing end walls 14 and 16, but a connecting groove 40 is arranged only in a housing end wall 14 or 16.
- the suction groove 30 and / or the pressure groove 34 is formed, the other housing end wall 16 and 14 is smooth, or that in both housing end walls 14 and 16 each have a suction 30th and / or pressure groove 34 is formed, which are then preferably arranged in mirror image to each other in the housing end walls 14 and 16.
- Suction opening 28 and the pressure port 32 is provided only in a housing end wall 14 or 16, however.
- the rotor 20 and the wings 26 in the axial direction on both sides are loaded at least approximately equal, so that no or only a small resultant force acts on the rotor 20 and the wings 26 in the direction of the axis of rotation 13.
- the depth of the annular groove 38 and the connecting groove 40 in the housing end wall 14,16 for example, about 0.1 to 2mm, preferably the width of the grooves 38 and 40 is greater than the depth.
- the arrangement of the annular groove 138 is modified. Notwithstanding the first embodiment, the annular groove 138 is arranged eccentrically to the axis of rotation 13 of the rotor 20.
- the annular groove 138 is formed, for example, at least approximately circular, wherein the center M is arranged offset with respect to the axis of rotation 13 of the rotor 20 by a distance e forming the eccentricity.
- the eccentricity e of the annular groove 138 is at least approximately equal and in the same direction as the eccentricity of the inner side of the peripheral wall 18 of the pump housing 10.
- the center M of the annular groove 138 is seen in the direction of rotation 21 of the rotor 20 between the suction groove 30 and the pressure groove 34 lying region of the peripheral wall 18 with respect to the
- Rotary shaft 13 arranged offset.
- the radial extent s1 of the sealing region 139 within the annular groove 138 toward the drive shaft 12 on the side towards which the midpoint M is offset with respect to the axis of rotation 13 increases during the radial extent s2 of the sealing region 139 the opposite side is reduced.
- the annular groove 138 is not circular, but has an eccentric course with respect to the axis of rotation 13, wherein the radial extent sl of the Sealing region 139 in a region in the direction of rotation 21 of the rotor 20 between the suction groove 30 and the pressure groove 34 is greater than the radial extent s2 of the sealing region 139 in the opposite region.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004060554A DE102004060554A1 (de) | 2004-12-16 | 2004-12-16 | Flügelzellenpumpe |
PCT/EP2005/056012 WO2006063913A1 (de) | 2004-12-16 | 2005-11-16 | Flügelzellenpumpe |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1828609A1 true EP1828609A1 (de) | 2007-09-05 |
EP1828609B1 EP1828609B1 (de) | 2013-03-27 |
Family
ID=35788642
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05813372A Not-in-force EP1828609B1 (de) | 2004-12-16 | 2005-11-16 | Flügelzellenpumpe |
Country Status (6)
Country | Link |
---|---|
US (1) | US7878779B2 (de) |
EP (1) | EP1828609B1 (de) |
JP (1) | JP2008524485A (de) |
CN (1) | CN101080572A (de) |
DE (1) | DE102004060554A1 (de) |
WO (1) | WO2006063913A1 (de) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005047175A1 (de) | 2005-09-30 | 2007-04-05 | Robert Bosch Gmbh | Flügelzellenpumpe |
CN101581301B (zh) * | 2009-06-15 | 2014-02-05 | 胡东文 | 一种叶片泵/马达 |
CN102072148B (zh) * | 2009-11-25 | 2015-03-25 | 博世汽车柴油***有限公司 | 叶片泵 |
US20120045355A1 (en) * | 2010-08-17 | 2012-02-23 | Paul Morton | Variable displacement oil pump |
GB2486007B (en) * | 2010-12-01 | 2017-05-10 | Itt Mfg Enterprises Inc | Sliding vane pump |
US9593681B2 (en) | 2011-11-04 | 2017-03-14 | CONTINTENTAL AUTOMOTIVE GmbH | Pump device for delivering a medium |
US9605673B2 (en) * | 2013-10-17 | 2017-03-28 | Tuthill Corporation | Pump with pivoted vanes |
JP7243528B2 (ja) * | 2019-08-29 | 2023-03-22 | 株式会社デンソー | ベーンポンプ |
DE102019127389A1 (de) * | 2019-10-10 | 2021-04-15 | Schwäbische Hüttenwerke Automotive GmbH | Flügelzellenpumpe |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB186271A (en) | 1921-11-23 | 1922-09-28 | John Alexander Mair | Improvements in rotary pumps |
US2004958A (en) * | 1931-08-22 | 1935-06-18 | Mitchell Bryce | Rotary pump |
US2423271A (en) * | 1942-09-11 | 1947-07-01 | Frank A Talbot | Rotary motor, pump, and the like |
US2544987A (en) | 1947-01-04 | 1951-03-13 | Vickers Inc | Power transmission |
US2653550A (en) | 1950-10-07 | 1953-09-29 | Vickers Inc | Power transmission |
US3574493A (en) | 1969-04-21 | 1971-04-13 | Abex Corp | Vane-type pumps |
US4455129A (en) | 1981-05-19 | 1984-06-19 | Daikin Kogyo Co., Ltd. | Multi-vane type compressor |
JPS63167089A (ja) | 1986-12-27 | 1988-07-11 | Kayaba Ind Co Ltd | ベ−ンポンプ |
JPS63280883A (ja) * | 1987-05-14 | 1988-11-17 | Toyota Autom Loom Works Ltd | 可変容量型ベ−ン圧縮機 |
JPH01155096A (ja) | 1987-12-10 | 1989-06-16 | Suzuki Motor Co Ltd | ベーン型回転圧縮機 |
US5265457A (en) | 1990-02-16 | 1993-11-30 | Sumitomo Electric Industries, Ltd. | Method of forming an oil groove on the end surface of a rotor of an aluminum alloy |
JPH0469686U (de) | 1990-10-25 | 1992-06-19 | ||
US5147183A (en) * | 1991-03-11 | 1992-09-15 | Ford Motor Company | Rotary vane pump having enhanced cold start priming |
DE19529806C2 (de) * | 1995-08-14 | 1999-04-01 | Luk Fahrzeug Hydraulik | Flügelzellenpumpe |
DE19952167A1 (de) | 1998-12-24 | 2000-06-29 | Mannesmann Rexroth Ag | Pumpenanordnung mit zwei Hydropumpen |
DE102005047175A1 (de) | 2005-09-30 | 2007-04-05 | Robert Bosch Gmbh | Flügelzellenpumpe |
-
2004
- 2004-12-16 DE DE102004060554A patent/DE102004060554A1/de not_active Withdrawn
-
2005
- 2005-11-16 EP EP05813372A patent/EP1828609B1/de not_active Not-in-force
- 2005-11-16 CN CNA2005800432381A patent/CN101080572A/zh active Pending
- 2005-11-16 JP JP2007546004A patent/JP2008524485A/ja not_active Withdrawn
- 2005-11-16 WO PCT/EP2005/056012 patent/WO2006063913A1/de active Application Filing
- 2005-11-16 US US11/721,347 patent/US7878779B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO2006063913A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP1828609B1 (de) | 2013-03-27 |
DE102004060554A1 (de) | 2006-06-22 |
WO2006063913A1 (de) | 2006-06-22 |
US20090291010A1 (en) | 2009-11-26 |
JP2008524485A (ja) | 2008-07-10 |
CN101080572A (zh) | 2007-11-28 |
US7878779B2 (en) | 2011-02-01 |
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