EP0832361B1 - Pompe a cellules semi-rotatives - Google Patents
Pompe a cellules semi-rotatives Download PDFInfo
- Publication number
- EP0832361B1 EP0832361B1 EP96917505A EP96917505A EP0832361B1 EP 0832361 B1 EP0832361 B1 EP 0832361B1 EP 96917505 A EP96917505 A EP 96917505A EP 96917505 A EP96917505 A EP 96917505A EP 0832361 B1 EP0832361 B1 EP 0832361B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pressure
- throttle bore
- rotor
- pressure space
- bore
- 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.)
- Expired - Lifetime
Links
- 239000007921 spray Substances 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000003746 feather Anatomy 0.000 description 1
Images
Classifications
-
- 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
- F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
- F04C14/24—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves
- F04C14/26—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves using bypass channels
-
- 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
Definitions
- the invention relates to a vane pump with a in a housing mounted cam ring and a through a drive shaft drivable rotor with radial slots.
- Working slides are inserted in the radial slots, which slide along in a radially sealing manner in the cam ring. Between the cam ring, the rotor and the working slides are working chambers formed by control plates in axial direction are limited.
- the housing is one hand acted upon by the delivery pressure of a spring force
- Flow control valve built in the oil from a pressure chamber conducts a spray channel.
- Such a pump is for example from the DE-A-41 08 126 known.
- a throttle bore between the pressure chamber and the outlet channel provided with a throttle insert.
- This Throttle bore causes a falling characteristic of the flow over the speed. In many cases, however, it is desirable to have a constant flow characteristic preserved, for example when used in power steering systems.
- the invention has for its object a to achieve a horizontal curve.
- This task is solved by the feature characterized in the claim.
- the throttle bore seated in the outlet duct has a frustoconical flattening towards the Pressure room. Due to the truncated cone-shaped flattening in the Form of a convex truncated cone protruding into the pressure chamber the inflow of the oil into the throttle bore so influenced that the desired constant, horizontal Characteristic curve arises.
- the length of the throttle bore will be another Achieved viscosity dependency, making one better Cold start behavior of the pump is maintained.
- the vane pump is used to deliver pressure oil from a container, not shown, to a not shown Consumers, for example an auxiliary steering system.
- an oil-filled pressure chamber 1 a housing 2, a rotor set 3 is used.
- the rotor set 3 consists of a cam ring 4 and a rotor 5.
- the rotor 5 is arranged in the interior of the cam ring 4 and has radially directed slots in which wings 6 are movable. Between the cam ring 4, the rotor 5 and the wings 6 are working chambers formed by Control surfaces of adjacent control plates 7 and 8 in axial Direction are limited.
- the pump corresponds to a double stroke Execution.
- the housing 2 is composed of a bearing housing 10 and a Pot-shaped housing cover 11 assembled.
- the rotor 5 sits rotatably on a drive shaft 12, which is in the Bearing housing 10 supports.
- the bearing in the bearing gear shaft rather is based on the housing cover 11 in axial direction.
- a flow control valve 13 for the control of the the pressure connection led pressure oil provided.
- Training the flow control valve 13 and one more existing, not visible pressure relief valve generally known, for example from US Pat. No. 5,098,259 and is therefore not described in detail.
- they are Pressure channels that connect the working chambers with the flow control valve 13 and connect the pressure relief valve in which Bearing housing 10 arranged. These channels are also general known and are therefore not described in detail.
- the control plate 7 has a throttle bore 14 with a truncated cone-shaped flattening 23.
- the truncated cone-shaped flattening 23 is designed such that a convex truncated cone, which surrounds the throttle bore 14, projects from the pressure plate 7 into the pressure chamber 1.
- the flattening 23 hinders a speed-dependent outflow in the throttle bore 14 and acts, so to speak, as a variable orifice. The higher the flow rate, the lower the mass flow. This effect results from the fact that the flow from the pressure chamber into the throttle bore 14 is deflected more strongly by the truncated cone-shaped flattening 23. With increasing flow velocity, there is a hydraulic reduction in cross-section at the entry into the throttle bore 14.
- the throttle bore 14 and an opening 14A are connected to the pressure-carrying working chambers formed between the rotor 5, the cam ring 4 and the vanes 6.
- the delivery pressure prevails in pressure chamber 1.
- the delivery pressure is supplied to the consumer via the throttle bore 14 and the outlet channel 19.
- a piston bore 15 of the flow control valve 13 axially connects to the opening 14A.
- the piston bore 15 contains a control piston 17, on which a spring 16 inserted into the spring chamber 16A presses.
- the piston bore 15 is connected to an inlet 22 via a spray channel 25.
- the piston bore 15 is also connected to the outlet channel 19 via a bore 27.
- the flow control valve 13 works as follows: With increasing speed, the differential pressure increases due to the throttle bore 14 on the end face of the control piston 17 facing the opening 14A.
- the control piston 17 acts as a pressure compensator and moves against the force of the spring 16 and against the force of the outlet pressure behind the control piston to the left. In this case, the end face of the control piston 17 opens the spray channel 25. A partial flow thus returns to the feed side of the pump in a known manner. A horizontal useful current characteristic is thus obtained.
- the truncated cone-shaped flattening 23 can be variable Use with different bore diameters, bore lengths and cone angles. Furthermore, the throttle cone can be integrated in the control plate.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Rotary Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Claims (1)
- Pompe cellulaire à ailettes ayant les caractéristiques suivantes :dans un boítier (2) est logée une came annulaire (4);un rotor (5) pouvant être entraíné par un arbre d'entraínement (12) comporte des fentes radiales dans lesquelles sont ajustés des coulisseaux de travail qui glissent le long de la came annulaire (4) en assurant l'étanchéité;entre la came annulaire (4), le rotor (5) et les coulisseaux de travail sont formées des chambres de travail qui sont délimitées axialement par des plaques de guidage (7, 8);dans le boítier (2) est montée une soupape de régulation du flux (13) sollicitée, d'une part, par la pression de refoulement et, d'autre part, par la pression de sortie plus une force de ressort, cette soupape conduisant de l'huile d'une chambre de pression (1) à un canal éjecteur (25);dans une des plaques de guidage se trouve un orifice d'étranglement (14) de la chambre de pression (1) vers un canal d'évacuation (19),
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19521635A DE19521635A1 (de) | 1995-06-14 | 1995-06-14 | Flügelzellenpumpe |
DE19521635 | 1995-06-14 | ||
PCT/EP1996/002484 WO1997000380A1 (fr) | 1995-06-14 | 1996-06-07 | Pompe a cellules semi-rotatives |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0832361A1 EP0832361A1 (fr) | 1998-04-01 |
EP0832361B1 true EP0832361B1 (fr) | 1999-12-29 |
Family
ID=7764366
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96917505A Expired - Lifetime EP0832361B1 (fr) | 1995-06-14 | 1996-06-07 | Pompe a cellules semi-rotatives |
Country Status (7)
Country | Link |
---|---|
US (1) | US6000914A (fr) |
EP (1) | EP0832361B1 (fr) |
JP (1) | JPH11507708A (fr) |
KR (1) | KR100415901B1 (fr) |
BR (1) | BR9608583A (fr) |
DE (2) | DE19521635A1 (fr) |
WO (1) | WO1997000380A1 (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19717794C2 (de) * | 1997-04-26 | 1999-06-17 | Zahnradfabrik Friedrichshafen | Verdrängerpumpe |
JP3543733B2 (ja) * | 2000-05-29 | 2004-07-21 | 日産自動車株式会社 | 燃料電池用リショルム圧縮機 |
KR101692773B1 (ko) * | 2015-06-09 | 2017-01-05 | 명화공업주식회사 | 베인펌프 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3385220A (en) * | 1966-08-17 | 1968-05-28 | Eaton Yale & Towne | Fluid pump |
US3989414A (en) * | 1975-03-26 | 1976-11-02 | Zahnradfabrik Friedrichshafen Ag | Pump for servo steering |
US4207038A (en) * | 1978-05-01 | 1980-06-10 | Ford Motor Company | Power steering pump |
US4298316A (en) * | 1978-05-01 | 1981-11-03 | Ford Motor Company | Power steering pump |
JP2851903B2 (ja) * | 1990-03-14 | 1999-01-27 | 株式会社ユニシアジェックス | 液体ポンプ |
-
1995
- 1995-06-14 DE DE19521635A patent/DE19521635A1/de not_active Ceased
-
1996
- 1996-06-07 JP JP9502601A patent/JPH11507708A/ja not_active Ceased
- 1996-06-07 US US08/973,687 patent/US6000914A/en not_active Expired - Fee Related
- 1996-06-07 EP EP96917505A patent/EP0832361B1/fr not_active Expired - Lifetime
- 1996-06-07 KR KR1019970709298A patent/KR100415901B1/ko not_active IP Right Cessation
- 1996-06-07 BR BR9608583A patent/BR9608583A/pt not_active IP Right Cessation
- 1996-06-07 WO PCT/EP1996/002484 patent/WO1997000380A1/fr active IP Right Grant
- 1996-06-07 DE DE59604053T patent/DE59604053D1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
BR9608583A (pt) | 1999-01-05 |
DE59604053D1 (de) | 2000-02-03 |
EP0832361A1 (fr) | 1998-04-01 |
DE19521635A1 (de) | 1996-12-19 |
KR19990022829A (ko) | 1999-03-25 |
WO1997000380A1 (fr) | 1997-01-03 |
KR100415901B1 (ko) | 2004-03-30 |
JPH11507708A (ja) | 1999-07-06 |
US6000914A (en) | 1999-12-14 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0782672B1 (fr) | Systeme de regulation pour pompes de refoulement | |
DE2915809A1 (de) | Verdraengungspumpe, insbesondere fuer servoeinrichtungen in kraftfahrzeugen | |
DE3237380C2 (fr) | ||
EP0832361B1 (fr) | Pompe a cellules semi-rotatives | |
EP1259737B1 (fr) | Dispositif de regulation pour pompes volumetriques | |
DE2318080A1 (de) | Druckmittelpumpe | |
EP0528254B1 (fr) | Dispositif de régulation pour pompes à déplacement positif | |
DE3018650A1 (de) | Hochdruckpumpe mit einem stomregelventil | |
EP0795086B1 (fr) | Pompe a palettes | |
DE4108126C2 (de) | Flügelzellenpumpe | |
EP1920158B1 (fr) | Pompe rotative | |
DE4101210C2 (de) | Regeleinrichtung für Verdrängerpumpen | |
DE102004020603B4 (de) | Volumenstromgeregelte Flügelzellenpumpe | |
DE3516022A1 (de) | Brennstoffpumpe | |
DE19909963B4 (de) | Verdrängerpumpe | |
EP0499794B1 (fr) | Pompe hydraulique | |
DE2219587A1 (de) | Fluegelzellenpumpe | |
DE19513079B9 (de) | Flügelzellenpumpe mit Stromregelventil | |
EP1318304B1 (fr) | Pompe à palettes | |
EP1555436B1 (fr) | Pompe à engrenages avec contrôle de débit | |
DE4135221C2 (de) | Flügelzellenpumpe | |
DE4237483C2 (de) | Hochdruckpumpe, insbesondere für Hilfskraftlenkungen | |
DE19832719B4 (de) | Flügelzellenpumpe | |
DE19528451C2 (de) | Drosseleinrichtung für Verdrängerpumpen | |
DE4110734C2 (de) | Flügelzellenpumpe |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 19970930 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): DE FR GB IT |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
17Q | First examination report despatched |
Effective date: 19990128 |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
ITF | It: translation for a ep patent filed | ||
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): DE FR GB IT |
|
REF | Corresponds to: |
Ref document number: 59604053 Country of ref document: DE Date of ref document: 20000203 |
|
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 20000211 |
|
ET | Fr: translation filed | ||
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed | ||
REG | Reference to a national code |
Ref country code: GB Ref legal event code: IF02 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20050523 Year of fee payment: 10 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20050616 Year of fee payment: 10 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20060607 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20060630 Year of fee payment: 11 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20060607 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20070228 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20060630 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20070607 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20120530 Year of fee payment: 17 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 59604053 Country of ref document: DE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20140101 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R079 Ref document number: 59604053 Country of ref document: DE Free format text: PREVIOUS MAIN CLASS: F04C0015040000 Ipc: F04C0014000000 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 59604053 Country of ref document: DE Effective date: 20140101 Ref country code: DE Ref legal event code: R079 Ref document number: 59604053 Country of ref document: DE Free format text: PREVIOUS MAIN CLASS: F04C0015040000 Ipc: F04C0014000000 Effective date: 20140526 |