EP2235374A2 - Pompe à engrenage intérieur, à volume variable - Google Patents

Pompe à engrenage intérieur, à volume variable

Info

Publication number
EP2235374A2
EP2235374A2 EP09704115A EP09704115A EP2235374A2 EP 2235374 A2 EP2235374 A2 EP 2235374A2 EP 09704115 A EP09704115 A EP 09704115A EP 09704115 A EP09704115 A EP 09704115A EP 2235374 A2 EP2235374 A2 EP 2235374A2
Authority
EP
European Patent Office
Prior art keywords
inner rotor
gear pump
internal gear
rotor
internal
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
Application number
EP09704115A
Other languages
German (de)
English (en)
Other versions
EP2235374B1 (fr
Inventor
Siegfried A. Eisenmann
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to EP09704115A priority Critical patent/EP2235374B1/fr
Publication of EP2235374A2 publication Critical patent/EP2235374A2/fr
Application granted granted Critical
Publication of EP2235374B1 publication Critical patent/EP2235374B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
    • F04C2/102—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member the two members rotating simultaneously around their respective axes
    • 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
    • F04C14/18—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber
    • F04C14/185—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber by varying the useful pumping length of the cooperating members in the axial direction

Definitions

  • the springs which act axially on the adjusting member, are arranged in the inner rotor between the shaft driving the inner rotor and the tooth contour of the outer toothing.
  • a connected to the high-pressure chamber adjustment, which is bounded axially by the adjusting member is formed within the internal toothing of the outer rotor, so that a pressure of the fluid within the adjustment chamber acts axially on the adjusting member against the spring force of the springs.
  • Compensation pressure range provided on the drive side opposite side between the housing or a lid of the housing and the cup-shaped intermediate member. In both cases causes the compensation pressure range, which is connected to the high pressure area or the high pressure chamber, that a hydraulic pressure force in
  • Figure 7 is an illustration of the pinion plate with the Axialbeschaufelung mounted thereon for the axial centrifugal pump;
  • Figure 8 is an illustration of the adjusting member;
  • Figure 1 shows the variable volume internal gear pump in a longitudinal section through the shaft center and the inner rotor center of the pump at maximum specific flow.
  • the internal gear pump has a two-part housing, which is composed of the actual housing 7 and a cover 10 of the housing, which are interconnected by means of screws 19.
  • a running set chamber 40 is formed, which has a low pressure chamber 17 with an inlet opening 15 and a high pressure chamber 18 with an outlet opening 16 for a fluid.
  • an inner rotor 2 is accommodated, which is rotatable within the motion chamber 40 of the housing 7 about a rotational axis Di and by a shaft 1, which is passed through the housing 7 and the cover 10, driven.
  • the direction of rotation of the moving set of the pump may be to explain the function in the individual figures in the indicated arrow direction 43 ( Figure 3), 44 ( Figure 6) and 45 ( Figures 5 and 7), so that the respective suction and pressure side corresponding to the expanding and compressing
  • a suction chamber 20 surrounds the cup-shaped intermediate member 6 and is at the same time the suction side of the blading 42 of the axial centrifugal pump 21.
  • the pressure side of this axial centrifugal pump 21 is also acting as a suction low pressure chamber 17 of the internal gear pump. Via the radial channels 41 of the outer rotor 3, the oil in the expanding conveyor cells 30 against the centrifugal force sucked.
  • the axial impeller of the centrifugal pump 21 runs in the pump shown in the drawing in proportion of the number of teeth of the moving set by a factor of 7: 6 faster than the outer rotor 3, so that the centrifugal pressure in the radial channels 41 of the outer rotor 3 by the pumping pressure of the centrifugal wheel of the centrifugal pump 21st more than balanced.
  • the pressure in the suction chamber 17 is constantly larger, so there is a vapor and air bubbles in the oil and the associated risk of cavitation is excluded even at high speeds. The same applies to the suction-side delivery cells 30.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
EP09704115A 2008-01-21 2009-01-21 Pompe à engrenage intérieur, à volume variable Not-in-force EP2235374B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP09704115A EP2235374B1 (fr) 2008-01-21 2009-01-21 Pompe à engrenage intérieur, à volume variable

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP08100673 2008-01-21
PCT/EP2009/050630 WO2009092719A2 (fr) 2008-01-21 2009-01-21 Pompe à engrenage intérieur, à volume variable
EP09704115A EP2235374B1 (fr) 2008-01-21 2009-01-21 Pompe à engrenage intérieur, à volume variable

Publications (2)

Publication Number Publication Date
EP2235374A2 true EP2235374A2 (fr) 2010-10-06
EP2235374B1 EP2235374B1 (fr) 2011-07-20

Family

ID=39523755

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09704115A Not-in-force EP2235374B1 (fr) 2008-01-21 2009-01-21 Pompe à engrenage intérieur, à volume variable

Country Status (5)

Country Link
US (1) US20110038746A1 (fr)
EP (1) EP2235374B1 (fr)
AT (1) ATE517262T1 (fr)
CA (1) CA2712550A1 (fr)
WO (1) WO2009092719A2 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8543245B2 (en) * 2009-11-20 2013-09-24 Halliburton Energy Services, Inc. Systems and methods for specifying an operational parameter for a pumping system
EP2585719A2 (fr) 2010-06-23 2013-05-01 Siegfried A. Eisenmann Machine hydrostatique à piston rotatif à volume variable en continu
EP2614274A1 (fr) 2010-09-06 2013-07-17 Siegfried A. Eisenmann Entraînement hydrostatique pour un véhicule automobile
CN102135096B (zh) * 2011-03-13 2013-08-28 深圳乐满油气技术有限公司 偏心式双转子泵的外驱动传动结构
US9488172B2 (en) * 2012-05-24 2016-11-08 GM Global Technology Operations LLC Pump assembly for a vehicle
DE102013212002A1 (de) * 2013-06-25 2015-01-08 Bayerische Motoren Werke Aktiengesellschaft Innenzahnradpumpe für die Förderung von Fluid
CN104976112B (zh) * 2014-04-01 2018-12-18 松下知识产权经营株式会社 液体用泵和兰金循环装置
JP2021055553A (ja) * 2019-09-27 2021-04-08 株式会社Ｓｕｂａｒｕ 内接歯車ポンプ
US11965509B2 (en) * 2022-02-28 2024-04-23 Genesis Advanced Technology Inc. Energy transfer machine for corrosive fluids

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2484789A (en) * 1944-04-15 1949-10-11 Hill Lab Variable displacement pump and motor
JPS5647692A (en) * 1979-09-27 1981-04-30 Ishikawajima Harima Heavy Ind Co Ltd Variable displacement type internal gear pump
DE3528651A1 (de) * 1985-08-09 1987-02-19 Rohs Hans Guenther Prof Dr Ing Zahnradpumpe
US6244839B1 (en) * 1997-11-14 2001-06-12 University Of Arkansas Pressure compensated variable displacement internal gear pumps
ITTO20020551A1 (it) * 2002-06-26 2003-12-29 Vhit Spa Macchina fluidica a cilindrata variabile in funzione della pressione
JP4485770B2 (ja) * 2003-09-01 2010-06-23 株式会社ダイヤメット オイルポンプロータ
DE10352029A1 (de) * 2003-11-07 2005-06-16 SCHWäBISCHE HüTTENWERKE GMBH Verdrängerpumpe mit Vorladeeinrichtung
WO2005100780A2 (fr) * 2004-04-09 2005-10-27 Hybra-Drive Systems, Llc Pompe/moteur a capacite variable
CA2588811C (fr) * 2004-12-22 2014-01-21 Magna Powertrain Inc. Pompe type gerotor a cylindree variable

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2009092719A2 *

Also Published As

Publication number Publication date
US20110038746A1 (en) 2011-02-17
WO2009092719A2 (fr) 2009-07-30
ATE517262T1 (de) 2011-08-15
EP2235374B1 (fr) 2011-07-20
CA2712550A1 (fr) 2009-07-30
WO2009092719A3 (fr) 2009-12-03

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