EP0763659B1 - Pompe - Google Patents

Pompe Download PDF

Info

Publication number
EP0763659B1
EP0763659B1 EP96113888A EP96113888A EP0763659B1 EP 0763659 B1 EP0763659 B1 EP 0763659B1 EP 96113888 A EP96113888 A EP 96113888A EP 96113888 A EP96113888 A EP 96113888A EP 0763659 B1 EP0763659 B1 EP 0763659B1
Authority
EP
European Patent Office
Prior art keywords
pump
suction
fluid
section
chamber
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.)
Revoked
Application number
EP96113888A
Other languages
German (de)
English (en)
Other versions
EP0763659A2 (fr
EP0763659A3 (fr
Inventor
Ivo Agner
Bernd Denfeld
Thomas Dr. Nied-Menninger
Gerhard Dr. Overdiek
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7772181&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0763659(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by LuK Fahrzeug Hydraulik GmbH and Co KG filed Critical LuK Fahrzeug Hydraulik GmbH and Co KG
Publication of EP0763659A2 publication Critical patent/EP0763659A2/fr
Publication of EP0763659A3 publication Critical patent/EP0763659A3/fr
Application granted granted Critical
Publication of EP0763659B1 publication Critical patent/EP0763659B1/fr
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

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
    • F04C15/06—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
    • F04C15/062—Arrangements for supercharging the working space

Definitions

  • the invention relates to pumps namely roller cell pumps, Vane pumps and gear pumps according to Preamble of claim 1.
  • the pump is proposed the features mentioned in claim 1 having. Because of the suction area of the pumps by returned from a consumer, under Pressurized fluid is charged, that is, in that the suction area has a fluid under it If excess pressure is supplied, cavitation effects can occur be safely avoided. That from the consumer returned fluid is through a return port led into a pressure room, which one has outlet opening to the suction chamber of the pump. The cross section of this outlet is smaller than that of the return port leading the fluid. This configuration leads to the situation Fluid accelerates as it passes through the outlet. That with great speed in the Fluid entering the suction chamber can therefore be an existing one Carry fluid and the suction area of the Feed the pump.
  • an embodiment is preferred the pump, in which a wall section is provided which is the suction area of the pump from the suction port demarcates.
  • a wall section is provided which is the suction area of the pump from the suction port demarcates.
  • the invention relates to gear pumps, roller cell pumps and vane pumps.
  • vane pump is described purely by way of example. However, it should be noted that those described here Charging the suction area of the vane pump also for roller cell and gear pumps can be used.
  • the vane pump 1 shown in FIG. 1 has a rotor 3 in its peripheral wall radially extending slots 5 are introduced, the take up radially movable wing 7.
  • the rotor 3 is rotatably arranged in a contour ring 9; whose inner surface 11 is designed that two opposite one another, identical here trained delivery rooms 13 and 15 are formed, which are essentially crescent-shaped. at a rotation of the rotor 3 inside the contour ring 9 retract the wings in the slots and from, so that in the delivery rooms 13 and 15 suction and Pressure areas are formed. With a turn of the rotor 3 here are two opposite Suction areas 17 and 19 and two opposite Pressure areas 21 and 23, whose in the Figure 1 specified arrangement with a rotation of the Counterclockwise.
  • the contour ring 9 is inserted into a pump housing 25, inside which a suction port 27 opens.
  • a connection is connected to the suction connection 27, that leads to a tank in which returned to the consumer, under one at most low pressure fluid introduced becomes.
  • the suction connection is in connection with one that practically completely surrounds the contour ring 9 Suction chamber 29, which with the suction areas 17th and 19 the pump is in fluid communication.
  • the Suction chamber 29 is at his, the suction port 27 facing away Ended over a sealing bead 31. Beyond the sealing bead Pressure chamber 33, on the one hand from the housing 25 and on the other hand is delimited by the contour ring 9 and which has an outlet 35 to the suction chamber 29.
  • a return connection 37 opens into the pressure chamber 33, through which a pressurized fluid from a Consumer reaches vane pump 1.
  • the Cross-section of the return connection is essential larger than that of outlet 35.
  • the vane pump 1 has an inside Contour rings 9 rotatably mounted rotor 3.
  • the Suction areas 17 and 19 of the two pump sections are, like their print area 21 and 23, dashed indicated. For better clarity the wings 7 were not shown here.
  • the wall section 39 results an optimal mixing of the two fluids, so that the energy of the pressurized by the Return port 37 delivered fluids optimal transfers to the fluid in the suction port 27.
  • the outlets 35a and 35b are arranged and trained that liquid emerging from these not on the opposite boundary wall 41 of the suction connection bounces, which leads to energy losses would lead.
  • the boundary wall 41 is part of a pipe connection running perpendicular to the picture, that leads to the tank.
  • the wall section 39 also narrows the suction port 27 in the transition area to the suction chamber 29, so that here quasi a mixing chamber is formed. Through the Constriction accelerates the fluid flowing through it. After the end of wall section 39 the cross section of the suction chamber 29 increases, so here due to the energy conversion Boost pressure is built up on the basis of which Fluid with an overpressure in the suction areas 17 and 19 is introduced.
  • Vane pump 1 is characterized in that the wall section 39 receives the rotor 3 Interior of the pump opposite the return connection 37 and delimited from the suction port 27, so that when the vane pump 1 is at a standstill Idling is safely avoided.
  • the rotor is so even after the pump has been shut down the fluid is immersed and is therefore characterized by an optimal start-up behavior. In other words, it is ensured that the vane pump 1 does not run empty at start and immediately starts pumping the fluid.
  • Essential is, however, that the connection between the suction connection 27 and suction chamber 29 as well as the one with the working pressure side the vane pump 1 connected Pressure outlet of the pressure kidneys 21 and 23 so far overhead is arranged that an oil collection space is created. The oil present there improves the starting properties the pump.
  • the pumps described with reference to Figures 1 and 2 are characterized by a very simple structure out.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)

Claims (5)

  1. Pompe, notamment pompe alvéolaire à rouleaux, pompe alvéolaire à palettes ou pompe à engrenages, pour alimenter un consommateur avec du fluide, le remplissage de la chambre d'aspiration (29) de la pompe (1) utilisant du fluide sous pression renvoyé par le consommateur, caractérisée en ce que le fluide renvoyé par le consommateur est conduit par un branchement de retour (37) dans la chambre de pression (33), qui a une sortie (35; 35a; 35b) s'ouvrant en direction de la chambre d'aspiration (29) de la pompe (1), la section de cette sortie étant inférieure à la section du branchement de retour (37) fournissant le fluide.
  2. Pompe selon la revendication 1, caractérisée en ce que la chambre d'aspiration (29) communique avec un branchement d'aspiration (27) par lequel un fluide est aspiré d'un réservoir.
  3. Pompe selon l'une quelconque des revendications précédentes, caractérisée en ce que la section de la chambre d'aspiration (29) est plus grande que la section de la sortie (35; 35a; 35b).
  4. Pompe selon l'une quelconque des revendications précédentes, caractérisée en ce que la sortie (35a ; 35b) de la chambre de pression débouche directement dans le branchement d'aspiration (27).
  5. Pompe selon l'une quelconque des revendications précédentes, caractérisée par un segment de paroi (39) qui délimite la zone d'aspiration (29) de la pompe (1) par rapport au branchement d'aspiration (27).
EP96113888A 1995-09-14 1996-08-30 Pompe Revoked EP0763659B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19534117 1995-09-14
DE19534117 1995-09-14

Publications (3)

Publication Number Publication Date
EP0763659A2 EP0763659A2 (fr) 1997-03-19
EP0763659A3 EP0763659A3 (fr) 1998-04-29
EP0763659B1 true EP0763659B1 (fr) 2002-12-18

Family

ID=7772181

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96113888A Revoked EP0763659B1 (fr) 1995-09-14 1996-08-30 Pompe

Country Status (3)

Country Link
EP (1) EP0763659B1 (fr)
JP (1) JP4044980B2 (fr)
DE (1) DE59609992D1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012100702A1 (de) 2012-01-30 2013-08-01 Zf Lenksysteme Gmbh Pumpe, insbesondere Flügelzellenpumpe für eine Hilfskraftlenkung

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE50107304D1 (de) * 2000-07-27 2005-10-06 Luk Fahrzeug Hydraulik Pumpe
JP2007278258A (ja) * 2006-04-12 2007-10-25 Kayaba Ind Co Ltd ベーンポンプ
US10753358B2 (en) 2015-09-29 2020-08-25 Aisin Aw Co., Ltd. Power transmission apparatus
JP6857717B2 (ja) * 2017-04-28 2021-04-14 株式会社ミクニ ベーンポンプ

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2983226A (en) * 1953-01-16 1961-05-09 William T Livermore Injection filled liquid pump
JPS55160191A (en) * 1979-05-31 1980-12-12 Toyoda Mach Works Ltd Pump system
JPS5677591A (en) * 1979-11-28 1981-06-25 Toyoda Mach Works Ltd Pump device
JP2822619B2 (ja) * 1990-06-26 1998-11-11 株式会社デンソー 液圧システム
DE4138516A1 (de) * 1991-11-23 1993-05-27 Luk Fahrzeug Hydraulik Pumpe

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012100702A1 (de) 2012-01-30 2013-08-01 Zf Lenksysteme Gmbh Pumpe, insbesondere Flügelzellenpumpe für eine Hilfskraftlenkung

Also Published As

Publication number Publication date
DE59609992D1 (de) 2003-01-30
EP0763659A2 (fr) 1997-03-19
JP4044980B2 (ja) 2008-02-06
EP0763659A3 (fr) 1998-04-29
JPH09112459A (ja) 1997-05-02

Similar Documents

Publication Publication Date Title
DE10240409B4 (de) Variable Verdrängungspumpe
DE2854656C2 (de) Kreiselpumpe mit einem Laufrad und zwei vorgeschalteten Axialrädern
DE19781894B4 (de) Selbstansaugende Kreiselpumpe
DE69626768T2 (de) Vorrichtung zum Pumpen oder Verdichten eines mehrphasigen Fluids mit einer Tandem Beschaufelung
DE4102323C2 (de) Kraftstoffpumpe
DE102005043434A1 (de) Einrichtung zur Leistungsanpassung einer Flüssigkeitsringpumpe
EP0934466A1 (fr) Pompe d'alimentation
DE3209763A1 (de) Elektrisch betriebene brennstoffpumpvorrichtung
DE3400594A1 (de) Stroemungsmaschine
EP1461533B1 (fr) Pompe
DE2653630A1 (de) Vorrichtung zum pumpen von fluiden
DE1294205B (de) Rotierende Verdraengerpumpe
DE3214688A1 (de) Fluegelradpumpe
DE102007016145A1 (de) Flügelzellenpumpe
DE69413663T2 (de) Turbopumpe und Zufuhrsystem mit einer Pumpe
EP0763659B1 (fr) Pompe
DE69820215T2 (de) Elektrische Brennstoffpumpe
WO1993009349A1 (fr) Pompe a ailettes
DE68918446T2 (de) Verdichter mit einem flüssigkeitsring.
WO2000047899A1 (fr) Pompe regenerative
DE3430353C2 (fr)
DE69716552T2 (de) Dichtung/lagervorrichtung
DE3303460A1 (de) Selbstansaugende seitenkanalpumpe
DE3018650A1 (de) Hochdruckpumpe mit einem stomregelventil
DE3005656A1 (de) Rotationskolbenpumpe

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

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE FR GB IT

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): DE FR GB IT

17P Request for examination filed

Effective date: 19981016

17Q First examination report despatched

Effective date: 20011206

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

RTI1 Title (correction)

Free format text: PUMP

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

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: LUK FAHRZEUG-HYDRAULIK GMBH & CO. KG

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

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

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REF Corresponds to:

Ref document number: 59609992

Country of ref document: DE

Date of ref document: 20030130

Kind code of ref document: P

Ref document number: 59609992

Country of ref document: DE

Date of ref document: 20030130

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20030325

ET Fr: translation filed
PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PLBQ Unpublished change to opponent data

Free format text: ORIGINAL CODE: EPIDOS OPPO

PLAX Notice of opposition and request to file observation + time limit sent

Free format text: ORIGINAL CODE: EPIDOSNOBS2

26 Opposition filed

Opponent name: ZF LENKSYSTEME GMBH

Effective date: 20030917

PLAX Notice of opposition and request to file observation + time limit sent

Free format text: ORIGINAL CODE: EPIDOSNOBS2

PLBB Reply of patent proprietor to notice(s) of opposition received

Free format text: ORIGINAL CODE: EPIDOSNOBS3

APBM Appeal reference recorded

Free format text: ORIGINAL CODE: EPIDOSNREFNO

APBP Date of receipt of notice of appeal recorded

Free format text: ORIGINAL CODE: EPIDOSNNOA2O

APAH Appeal reference modified

Free format text: ORIGINAL CODE: EPIDOSCREFNO

APBQ Date of receipt of statement of grounds of appeal recorded

Free format text: ORIGINAL CODE: EPIDOSNNOA3O

REG Reference to a national code

Ref country code: DE

Ref legal event code: R103

Ref document number: 59609992

Country of ref document: DE

Ref country code: DE

Ref legal event code: R064

Ref document number: 59609992

Country of ref document: DE

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20130827

Year of fee payment: 18

APBU Appeal procedure closed

Free format text: ORIGINAL CODE: EPIDOSNNOA9O

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20130821

Year of fee payment: 18

Ref country code: GB

Payment date: 20130823

Year of fee payment: 18

RDAF Communication despatched that patent is revoked

Free format text: ORIGINAL CODE: EPIDOSNREV1

RDAG Patent revoked

Free format text: ORIGINAL CODE: 0009271

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: PATENT REVOKED

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20130805

Year of fee payment: 18

27W Patent revoked

Effective date: 20130919

GBPR Gb: patent revoked under art. 102 of the ep convention designating the uk as contracting state

Effective date: 20130919

REG Reference to a national code

Ref country code: DE

Ref legal event code: R107

Ref document number: 59609992

Country of ref document: DE

Effective date: 20140227