EP0549929B1 - Pompe à engrènage interne - Google Patents

Pompe à engrènage interne Download PDF

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Publication number
EP0549929B1
EP0549929B1 EP92120960A EP92120960A EP0549929B1 EP 0549929 B1 EP0549929 B1 EP 0549929B1 EP 92120960 A EP92120960 A EP 92120960A EP 92120960 A EP92120960 A EP 92120960A EP 0549929 B1 EP0549929 B1 EP 0549929B1
Authority
EP
European Patent Office
Prior art keywords
internal gear
pinion
web
gear pump
shaft
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
Application number
EP92120960A
Other languages
German (de)
English (en)
Other versions
EP0549929A1 (fr
Inventor
Franz Arbogast
Peter Peiz
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.)
Voith Turbo GmbH and Co KG
Original Assignee
JM Voith GmbH
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
Application filed by JM Voith GmbH filed Critical JM Voith GmbH
Publication of EP0549929A1 publication Critical patent/EP0549929A1/fr
Application granted granted Critical
Publication of EP0549929B1 publication Critical patent/EP0549929B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F04C15/0042—Systems for the equilibration of forces acting on the machines or pump
    • F04C15/0049—Equalization of pressure pulses

Definitions

  • the invention relates to an internal gear pump according to the preamble of claim 1.
  • a pump of this type has become known from DE 41 04 397 A1.
  • Internal gear pumps of this type are used in simple design, i.e. each as a single pump.
  • a housing cover is provided axially outside the ring-shaped intermediate housing parts, which shuts off the front of the housing interior.
  • two or more internal gear pumps can also be interconnected in such a way that they are flanged together on the same axis. In this case, the aforementioned covers between two adjacent pumps are omitted.
  • a so-called filler with associated filler pin is arranged between the pinion and the ring gear, has a substantially crescent shape, and extends essentially over the last quadrant of the cavity between the ring gear and the pinion.
  • the invention has for its object to design an internal gear pump according to the preamble of claim 1 such that the noise behavior is significantly reduced beyond what has been achieved so far.
  • a web is provided on at least one of the two intermediate parts - seen in the axial direction - which bridges the relevant opening. This web should run at least approximately parallel to the direction of the medium flow emerging from the pressure connection. An arrangement of the web in an axial plane is particularly favorable.
  • the noise level at the highest pressures can be significantly reduced again, generally by 5 dB (A). This means that the pump can also be used for those cases in which it was not previously usable due to the high level of noise pollution.
  • the invention can be used in all conceivable types of internal gear pumps, for example in pumps with or without filler, in single pumps, as well as in multiple pumps.
  • the internal gear pump has an internally toothed ring gear 1, a pinion 2 meshing with it, a shaft 3 carrying the pinion 2, a central housing part 4 which is annular and which surrounds the ring gear and the pinion 2, and axially on both sides of the central housing part 4 Intermediate housing part 5 and 6. On both sides of the two intermediate parts there are bearing caps 7 and 8, which shut off the interior of the housing at the end.
  • the housing has a suction connection 9 and a pressure connection 10.
  • the pressure connection 10 is directed vertically downwards.
  • a filler 20 with a filler pin 21 is located in the working space between the ring gear 1 and the pinion 2.
  • the intermediate housing part 5 shown here has a bore 5.1 through which the shaft 3 is guided.
  • the intermediate part 5 has an opening 5.2. This extends in an arc over part of the circumference of the intermediate piece, in the present case over approximately 130 °.
  • the opening in the views according to FIGS. 4 and 5 has at least approximately the shape of a sausage. 5 that the opening 5.2 extends on both sides of a vertical axial plane of the shaft 3. In any case, the opening 5.2 - seen in a section perpendicular to the axis - will extend beyond a plane in which the pressure connection 10 lies.
  • a bridge is very important 5.3.
  • This bridge bridges the opening 5.2.
  • This web is located in an axial plane - in the present case in a vertical axial plane. It thus runs parallel to the direction of the medium flow emerging through the pressure connection. It is designed so that the medium flow, which is supposed to pass through the opening, is affected as little as possible. It can thus be designed to be aerodynamically efficient. In addition, it only needs to be relatively thin.
  • the web can be the fork, so that there are two or more, even thinner individual webs that are parallel to one another.
  • filler 20 shown with filler pin 21 is of no importance for the invention.
  • the invention can also be applied to pumps without these two elements.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)

Claims (4)

  1. Pompe à engrenages à roue dentée à denture intérieure comportant les particularités suivantes :
    1.1 une roue (1) à denture intérieure,
    1.2 un pignon (2) qui engrène avec la roue (1) à denture intérieure et qui est monté d'une manière excentrée vis-à-vis de la roue (1) à denture intérieure.
    1.3 un arbre (3) portant le pignon (2),
    1.4 une partie centrale annulaire de boîtier (4) qui entoure la roue (1) à denture intérieure et le pignon (2) et comporte un raccord d'aspiration (9) et un raccord de refoulement (10),
    1.5 sur chacun des deux côtés de la partie centrale de boîtier (4), une partie intermédiaire de boîtier (5, 6) de forme annulaire dans laquelle l'arbre (3) est monté à palier,
    1.6 un passage (5.2) qui est prévu dans chaque partie intermédiaire (5. 6) et qui s'étend en forme d'arc suivant la direction circonférentielle,
       caractérisée par les particularités suivantes :
    1.7 il est prévu un doigt (5.3) qui s'étend à la façon d'un pont d'un côté à l'autre de chaque passage (5.2),
    1.8 le doigt est situé au moins approximativement dans la zone du pignon (2) qui est diamétralement opposée au raccord de refoulement (10).
  2. Pompe à engrenages à roue à denture intérieure suivant la revendication 1, caractérisée en ce que le doigt (5.3) est disposé d'une manière pratiquement parallèle à la direction du flux de fluide dans le raccord de refoulement (10).
  3. Pompe à engrenages à roue à denture intérieure suivant la revendication 1 ou 2, caractérisée en ce que le doigt est disposé dans un plan axial passant par l'arbre (3).
  4. Pompe à engrenages à roue à denture intérieure suivant l'une des revendications 1 à 3, caractérisée en ce qu'il est prévu deux doigts ou davantage.
EP92120960A 1991-12-26 1992-12-09 Pompe à engrènage interne Expired - Lifetime EP0549929B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4142799A DE4142799C1 (fr) 1991-12-26 1991-12-26
DE4142799 1991-12-26

Publications (2)

Publication Number Publication Date
EP0549929A1 EP0549929A1 (fr) 1993-07-07
EP0549929B1 true EP0549929B1 (fr) 1996-02-28

Family

ID=6448037

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92120960A Expired - Lifetime EP0549929B1 (fr) 1991-12-26 1992-12-09 Pompe à engrènage interne

Country Status (5)

Country Link
US (1) US5299923A (fr)
EP (1) EP0549929B1 (fr)
JP (1) JPH0688576A (fr)
AT (1) ATE134744T1 (fr)
DE (2) DE4142799C1 (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3291954B2 (ja) * 1995-01-31 2002-06-17 日産自動車株式会社 自動変速機用ポンプ
DE19613835A1 (de) * 1996-04-06 1997-10-09 Eckerle Rexroth Gmbh Co Kg Innenzahnradmaschine (Pumpe oder Motor)
US5975556A (en) * 1997-06-18 1999-11-02 Lehmann; Ernest Snowboard binding
DE19930911C1 (de) * 1999-07-06 2000-07-20 Voith Turbo Kg Axialkompensation einer Innenzahnradpumpe für den geschlossenen Kreislauf
DE10040692C1 (de) * 2000-08-19 2001-09-20 Bosch Gmbh Robert Innenzahnradpumpe
EP1523608A2 (fr) * 2001-02-08 2005-04-20 Outland Technologies (USA), Inc. Dispositif rotatif a deplacement positif
US6659728B2 (en) * 2001-11-09 2003-12-09 Viking Pump, Inc. Liquid dispensing pump system
DE10341841A1 (de) * 2003-09-09 2005-04-07 Siemens Ag Nach dem Gerotorprinzip arbeitende Kraftstoffpumpe
JP4272112B2 (ja) * 2004-05-26 2009-06-03 株式会社日立製作所 モータ一体型内接歯車式ポンプ及び電子機器
DE202012104839U1 (de) 2012-12-12 2013-01-18 Eckerle Industrie-Elektronik Gmbh Innenzahnradmaschine (Pumpe oder Motor)
DE202013102079U1 (de) 2013-05-13 2013-05-21 Eckerle Industrie-Elektronik Gmbh Zahnradmaschine mit formschlüssiger Axialsicherung einer Lagerbuchse einer Wellenlagerung
JP2016125361A (ja) * 2014-12-26 2016-07-11 株式会社デンソー 燃料ポンプ
CN105422442A (zh) * 2015-12-31 2016-03-23 江苏驰翔精密齿轮股份有限公司 内啮合齿轮泵

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1728085C2 (de) * 1968-08-22 1986-12-04 Eckerle, Otto, 7502 Malsch Zahnradpumpe
DE4104397C2 (de) * 1990-03-09 1993-12-16 Voith Gmbh J M Innenzahnradpumpe
DE4120757C2 (de) * 1990-06-25 2000-06-15 Zahnradfabrik Friedrichshafen Flügelzellenpumpe

Also Published As

Publication number Publication date
DE69208632D1 (de) 1996-04-04
ATE134744T1 (de) 1996-03-15
DE4142799C1 (fr) 1993-04-15
US5299923A (en) 1994-04-05
EP0549929A1 (fr) 1993-07-07
JPH0688576A (ja) 1994-03-29

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