EP0235150B1 - Pompe rotative a ailettes - Google Patents
Pompe rotative a ailettes Download PDFInfo
- Publication number
- EP0235150B1 EP0235150B1 EP86900102A EP86900102A EP0235150B1 EP 0235150 B1 EP0235150 B1 EP 0235150B1 EP 86900102 A EP86900102 A EP 86900102A EP 86900102 A EP86900102 A EP 86900102A EP 0235150 B1 EP0235150 B1 EP 0235150B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- damping
- pressure
- rotor
- housing
- housing part
- 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
Links
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
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
-
- 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
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0042—Systems for the equilibration of forces acting on the machines or pump
- F04C15/0049—Equalization of pressure pulses
Definitions
- the invention relates to a vane pump with a pump housing, with a rotor arranged between the end wall of a pressure plate and an end wall of a counterplate or a housing part and connected to a drive shaft with radially displaceable vanes and with a cam ring surrounding the rotor, working chambers having suction and pressure zones are delimited by the two end walls, the rotor, the cam ring and the wings, and through openings are arranged in the area of the pressure zones in the pressure plate, which are connected to a pressure medium outlet opening, and in the area of the pressure zones in the end wall of the counterplate or the housing part in which the Drive shaft is mounted, pressure equalization openings are arranged.
- vane pumps tend to generate noise, especially at high speeds, which mainly
- a vane pump is known with a device for preventing pulsation vibrations.
- a storage space is provided, which is supplied from the pressure side of the pump, which is a relatively narrow bore, with pressure medium under outlet pressure.
- the storage space can be connected to a number of axial bores and a number of radial grooves to certain working chambers.
- the axial bores and the radial grooves work together in the sense of a tax distribution. It is disadvantageous that a large number of bores and grooves must be provided, with very high demands being made both on the cross sections of the bores and on the assignment of certain bores to the radial grooves.
- the present invention is therefore based on the object of providing a vane pump of the type mentioned in the introduction, in which corresponding damping spaces are created with less effort to avoid or largely reduce pressure pulsations, with no or only a slight increase in the size.
- this object is achieved in that the pressure compensation openings are designed as damping spaces, which protrude from the end wall of the counterplate or the housing part into the housing part lying behind them and extend axially through the housing part as recesses closed inside, so that the depth of the damping spaces is greater than their width in radial extension and that each pressure zone is assigned a separate damping space.
- the damping spaces according to the invention have the further advantage that the pressure pulsations are already combated as they arise, so that they can be avoided more easily than if they have to be eliminated subsequently.
- the damping bores can extend with a shoulder in the area of the stepped bore in the direction of the outside of the housing.
- the vane pump is basically of a known design, which is why only the parts essential to the invention are described in more detail below.
- the vane pump has a pump housing 1 with a cover 2. There is a center bore 23 in the housing 1, which is formed on the input side as a stepped bore 3. A drive shaft 5 provided with a drive flange 4 is mounted in the center bore 23. At the front end of the drive shaft 5 there is a rotor 6 which is fixedly connected to the drive shaft 5. In the rotor 6, a plurality of wings 7 distributed over the circumference are arranged radially displaceably in slots in the usual manner. The rotor is still surrounded by a cam ring 8. On the print side, i.e. H. on the side of the cover 2 there is a pressure plate 9 which is pressed with an end wall 10 onto the rotor 6 and the cam ring 8. In the end wall 10 there are the control grooves and through openings or pressure kidneys 11 and 12, which are connected to a pressure collection chamber 13. From the pressure collection chamber 13, the pressure medium reaches the outside via a pressure medium outlet opening 14.
- the housing 1 On the side opposite the pressure plate 9, the housing 1 has a flange part 15 with an end wall 16.
- Working chambers are arranged between the end walls 10 and 16 and are delimited by the rotor 6, the cam ring 8 and the vanes 7. In the circumferential direction of the cam ring 8, the working chambers are assigned to the suction and pressure zones of the pump.
- damping spaces 17 and 18 extend in the form of damping bores, axially parallel to the drive shaft 5, practically through the entire housing part 1.
- the damping spaces 17 and 18 are kidney-shaped to adapt to the pressure spaces (see FIG. 2).
- damping spaces 17 and 18 extend around the bearing part 19 with slide bearings 20 for the drive shaft 5.
- damping spaces or damping bores 17 and 18 are as large as possible, although minimum wall thicknesses must be maintained, they have a shoulder 22 at their end facing away from the cam ring 8, with which they extend into the area of the stepped bore 3. In this way, an additional space for damping is gained.
- housing part 1 and cover 2 are chosen arbitrarily. Of course, these two names can also be interchanged within the scope of the invention.
- the only decisive factor is that the damping spaces or damping bores 17 and 18 are located in your part of the vane pump, in which the drive shaft 5 is mounted.
- This housing part has a certain length for mounting the drive shaft 5. This existing overall length of the housing part is now used according to the invention to form the damping spaces.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Claims (5)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP8500010 | 1985-01-15 | ||
WOPCT/EP85/00010 | 1985-01-15 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0235150A1 EP0235150A1 (fr) | 1987-09-09 |
EP0235150B1 true EP0235150B1 (fr) | 1989-03-08 |
Family
ID=8165000
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP86900102A Expired EP0235150B1 (fr) | 1985-01-15 | 1985-12-03 | Pompe rotative a ailettes |
Country Status (6)
Country | Link |
---|---|
US (1) | US4752195A (fr) |
EP (1) | EP0235150B1 (fr) |
JP (1) | JP2550042B2 (fr) |
KR (1) | KR870700121A (fr) |
DE (2) | DE3568611D1 (fr) |
WO (1) | WO1986004393A1 (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19635801A1 (de) * | 1996-09-04 | 1998-03-05 | Zahnradfabrik Friedrichshafen | Hochdruckpumpe mit Arbeitsschiebern |
DE4120757C2 (de) * | 1990-06-25 | 2000-06-15 | Zahnradfabrik Friedrichshafen | Flügelzellenpumpe |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5062498A (en) * | 1989-07-18 | 1991-11-05 | Jaromir Tobias | Hydrostatic power transfer system with isolating accumulator |
US5310017A (en) * | 1989-07-18 | 1994-05-10 | Jaromir Tobias | Vibration isolation support mounting system |
US5168703A (en) * | 1989-07-18 | 1992-12-08 | Jaromir Tobias | Continuously active pressure accumulator power transfer system |
US5101929A (en) * | 1989-07-18 | 1992-04-07 | Jaromir Tobias | Vibration isolation support mounting system |
JP2963519B2 (ja) * | 1990-10-11 | 1999-10-18 | 豊田工機株式会社 | ベーンポンプ |
US5683229A (en) * | 1994-07-15 | 1997-11-04 | Delaware Capital Formation, Inc. | Hermetically sealed pump for a refrigeration system |
FR2738302B1 (fr) * | 1995-08-30 | 1997-10-10 | Hydroperfect Int | Groupe electro-hydraulique compact |
US6158983A (en) * | 1997-04-24 | 2000-12-12 | Trw Inc. | Pump having muffler for attenuating noise |
US5961309A (en) * | 1997-04-24 | 1999-10-05 | Trw Inc. | Gear pump with noise attenuation |
DE19833372A1 (de) * | 1998-07-24 | 2000-01-27 | Zahnradfabrik Friedrichshafen | Zahnradpumpe |
DE19936644B4 (de) | 1999-08-04 | 2004-04-01 | Hella Kg Hueck & Co. | Elektrische Luftpumpe für Kraftfahrzeuge |
US6305919B1 (en) * | 1999-08-24 | 2001-10-23 | Visteon Global Technologies, Inc. | Hydraulic pump housing with an integral dampener chamber |
JP3744349B2 (ja) * | 2000-11-27 | 2006-02-08 | 豊田工機株式会社 | ポンプ装置 |
US6497557B2 (en) * | 2000-12-27 | 2002-12-24 | Delphi Technologies, Inc. | Sliding vane pump |
US6565328B2 (en) * | 2000-12-29 | 2003-05-20 | Visteon Global Technologies, Inc. | Self aligning cartridge pump |
JP4328184B2 (ja) * | 2003-11-17 | 2009-09-09 | 株式会社日立製作所 | オイルポンプ |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2357334A (en) * | 1941-03-29 | 1944-09-05 | Manly Corp | Fluid pressure device |
US2762312A (en) * | 1951-05-17 | 1956-09-11 | Denison Eng Co | Vane type pump |
US2855857A (en) * | 1956-05-07 | 1958-10-14 | Bendix Aviat Corp | Regulator for positive displacement fluid machines |
US3007419A (en) * | 1957-04-19 | 1961-11-07 | Bendix Corp | Positive displacement pump |
US3145662A (en) * | 1960-09-06 | 1964-08-25 | Eickmann Karl | Device for damping vibrations, fluctuations of pressure and fluctuation of deliveryvolume or suction volume of rotary piston machines |
DE1553282C3 (de) * | 1963-07-05 | 1975-05-22 | Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen | Rotationskolbenmaschine, Insbesondere Rotationskolbenpumpe |
US3233552A (en) * | 1963-10-10 | 1966-02-08 | Crane Co | Pump |
DE1298807B (de) * | 1966-08-05 | 1969-09-18 | Danfoss As | Drehschieberanordnung |
SU950954A1 (ru) * | 1973-10-01 | 1982-08-15 | Трижды Ордена Ленина И Ордена Трудового Красного Знамени Московский Автомобильный Завод Им.И.А.Лихачева | Объемна гидромашина |
US4068987A (en) * | 1976-07-23 | 1978-01-17 | Elmer A. Selzer | Pneumatic motor with muffled exhaust |
DE3018649A1 (de) * | 1980-05-16 | 1981-11-26 | Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen | Hochdruckpumpe |
-
1985
- 1985-12-03 DE DE8686900102T patent/DE3568611D1/de not_active Expired
- 1985-12-03 JP JP61500149A patent/JP2550042B2/ja not_active Expired - Lifetime
- 1985-12-03 EP EP86900102A patent/EP0235150B1/fr not_active Expired
- 1985-12-03 KR KR1019860700626A patent/KR870700121A/ko not_active Application Discontinuation
- 1985-12-03 DE DE19853542659 patent/DE3542659A1/de not_active Withdrawn
- 1985-12-03 WO PCT/EP1985/000663 patent/WO1986004393A1/fr active IP Right Grant
- 1985-12-03 US US06/912,601 patent/US4752195A/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
Oelhydraulic u. Pneumatic 20 (1976), Nr.8, S.515-521 * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4120757C2 (de) * | 1990-06-25 | 2000-06-15 | Zahnradfabrik Friedrichshafen | Flügelzellenpumpe |
DE19635801A1 (de) * | 1996-09-04 | 1998-03-05 | Zahnradfabrik Friedrichshafen | Hochdruckpumpe mit Arbeitsschiebern |
DE19635801B4 (de) * | 1996-09-04 | 2005-04-28 | Zahnradfabrik Friedrichshafen | Hochdruckpumpe mit Arbeitsschiebern |
Also Published As
Publication number | Publication date |
---|---|
DE3568611D1 (en) | 1989-04-13 |
JP2550042B2 (ja) | 1996-10-30 |
WO1986004393A1 (fr) | 1986-07-31 |
EP0235150A1 (fr) | 1987-09-09 |
DE3542659A1 (de) | 1986-07-17 |
KR870700121A (ko) | 1987-03-14 |
JPS62501788A (ja) | 1987-07-16 |
US4752195A (en) | 1988-06-21 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0235150B1 (fr) | Pompe rotative a ailettes | |
DE2951012C2 (fr) | ||
DE2306064C2 (de) | Flügelzellenpumpe | |
DE3590198C2 (de) | Ventilplatte für eine hydrostatische Axialkolbeneinheit | |
DE202019107293U1 (de) | Pumpenbaugruppe mit in einem einzelnen Gehäuse angeordneten zwei Pumpen | |
DE3050041T1 (de) | Vane pump | |
DE3313390C2 (fr) | ||
DE3319000A1 (de) | Drehkolbenpumpe | |
DE4441915C2 (de) | Innenzahnradpumpe | |
DE2802504C2 (de) | Verteilerdrehschieber für hydraulische Kolbenmotore | |
DE1934362A1 (de) | Stroemungsmediums- bzw. Fluessigkeitsuebertragungsvorrichtung,insbesondere Fluegelradpumpe mit veraenderbarem Volumen | |
EP3572669A2 (fr) | Module de raccordement pourvu de pompe d'alimentation et d'élément élastique | |
DE4030295C2 (de) | Pumpeneinheit mit Steuerventil | |
DE4136150A1 (de) | Fluegelzellenpumpe | |
DE2835816A1 (de) | Drehkolbenpumpe | |
DE3207997A1 (de) | Oelabscheider | |
DE69617141T2 (de) | Flügelzellenverdichter mit Druckspitzenreduzierung | |
DE2038086C3 (de) | Axialkolbenmaschine | |
EP0315878B1 (fr) | Pompe à engrènement interne | |
DE69300335T2 (de) | Drehkolbenpumpe mit vereinfachtem Pumpengehäuse. | |
DE3414535C2 (fr) | ||
DE3301563C2 (de) | Zweikreispumpe | |
DE102019127388A1 (de) | Fluidversorgung von Unterflügelkammern einer Flügelzellenpumpe | |
DE4109149A1 (de) | Steuerscheibe fuer fluegelzellenpumpe | |
DE3737961A1 (de) | Innenzahnradpumpe |
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: 19870515 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): DE FR GB IT |
|
17Q | First examination report despatched |
Effective date: 19880725 |
|
ITF | It: translation for a ep patent filed |
Owner name: DE DOMINICIS & MAYER S.R.L. |
|
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 |
|
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) | ||
REF | Corresponds to: |
Ref document number: 3568611 Country of ref document: DE Date of ref document: 19890413 |
|
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 | ||
ITTA | It: last paid annual fee | ||
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 19971121 Year of fee payment: 13 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 19971215 Year of fee payment: 13 |
|
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: 19981203 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 19981203 |
|
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: 19990831 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20030106 Year of fee payment: 18 |
|
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: 20040701 |