WO2011032766A3 - Gear pump comprising two rotating pump elements - Google Patents

Gear pump comprising two rotating pump elements Download PDF

Info

Publication number
WO2011032766A3
WO2011032766A3 PCT/EP2010/060968 EP2010060968W WO2011032766A3 WO 2011032766 A3 WO2011032766 A3 WO 2011032766A3 EP 2010060968 W EP2010060968 W EP 2010060968W WO 2011032766 A3 WO2011032766 A3 WO 2011032766A3
Authority
WO
WIPO (PCT)
Prior art keywords
pump
elements
gear pump
pressure compensation
boundary wall
Prior art date
Application number
PCT/EP2010/060968
Other languages
German (de)
French (fr)
Other versions
WO2011032766A2 (en
Inventor
Christian Langenbach
Original Assignee
Robert Bosch 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 Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Priority to CN201080041307.6A priority Critical patent/CN102498296B/en
Priority to EP10737062A priority patent/EP2478224A2/en
Publication of WO2011032766A2 publication Critical patent/WO2011032766A2/en
Publication of WO2011032766A3 publication Critical patent/WO2011032766A3/en
Priority to IN2315DEN2012 priority patent/IN2012DN02315A/en

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
    • F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C2/14—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
    • F04C2/18—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with similar tooth forms
    • 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
    • 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
    • F04C2/082—Details specially related to intermeshing engagement type machines or pumps
    • F04C2/086—Carter
    • 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
    • F04C2230/00—Manufacture
    • F04C2230/10—Manufacture by removing material
    • 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
    • F04C2240/00—Components
    • F04C2240/30—Casings or housings

Abstract

Disclosed is a gear pump (10) comprising two rotating pump elements and a first housing piece (12) that includes a cavity (13) for accommodating the pump elements and a radial boundary wall (20) which lies radially outside at least one pump element and immediately adjoins the pump element. The gear pump (10) further comprises a second housing piece (14) that axially delimits the cavity (13), and a pressure compensation groove (30) that extends in the circumferential direction within the boundary wall (20). The disclosed gear pump (10) is characterized in that at least some sections of the pressure compensation groove (30) are formed by a milled surface that is inclined relative to the boundary wall (20) such that the cross-section of the pressure compensation groove (30) is at least substantially closed towards the second housing piece (14).
PCT/EP2010/060968 2009-09-17 2010-07-28 Gear pump comprising two rotating pump elements WO2011032766A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201080041307.6A CN102498296B (en) 2009-09-17 2010-07-28 There is the gear pump of the pump element that two rotate
EP10737062A EP2478224A2 (en) 2009-09-17 2010-07-28 Gear pump comprising two rotating pump elements
IN2315DEN2012 IN2012DN02315A (en) 2009-09-17 2012-03-16

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009029522.4 2009-09-17
DE200910029522 DE102009029522A1 (en) 2009-09-17 2009-09-17 Gear pump with two rotating pumping elements

Publications (2)

Publication Number Publication Date
WO2011032766A2 WO2011032766A2 (en) 2011-03-24
WO2011032766A3 true WO2011032766A3 (en) 2011-10-13

Family

ID=43603137

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2010/060968 WO2011032766A2 (en) 2009-09-17 2010-07-28 Gear pump comprising two rotating pump elements

Country Status (5)

Country Link
EP (1) EP2478224A2 (en)
CN (1) CN102498296B (en)
DE (1) DE102009029522A1 (en)
IN (1) IN2012DN02315A (en)
WO (1) WO2011032766A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104389640B (en) * 2013-09-28 2017-09-05 摩尔动力(北京)技术股份有限公司 Equal modulus gear fluids mechanism and apply its engine
DE102013113610A1 (en) 2013-12-06 2015-06-11 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Internal combustion engine, preferably with a dry sump lubrication system
CN106762613A (en) * 2017-01-16 2017-05-31 三明索富泵业有限公司 A kind of radial clearance compensates gear pump

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1553125A1 (en) * 1965-02-20 1970-04-30 Maschf Augsburg Nuernberg Ag Gear pump
DE2227119A1 (en) * 1972-06-03 1973-12-13 Daimler Benz Ag GEAR OIL PUMP, ESPECIALLY FOR MOTOR VEHICLE COMBUSTION MACHINES
JPS5274102A (en) * 1975-12-17 1977-06-21 Unitika Ltd Gear pumps for spinning machines
WO1995022002A1 (en) * 1994-02-14 1995-08-17 Rhone-Poulenc Viscosuisse Sa Spinning pump for polyamides
GB2312476A (en) * 1996-04-24 1997-10-29 Sauer Sundstrand Ltd Pressure balance control in gear pumps
JPH11159477A (en) * 1997-11-26 1999-06-15 Shimadzu Corp Hydraulic gear pump

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10018348A1 (en) 2000-04-13 2001-10-25 Bosch Gmbh Robert Gearwheel pump for high pressure fuel pump has housing with gear wheels and groove having first and second sections with different spacing at bottom from tooth tips producing narrow gap for better pump action

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1553125A1 (en) * 1965-02-20 1970-04-30 Maschf Augsburg Nuernberg Ag Gear pump
DE2227119A1 (en) * 1972-06-03 1973-12-13 Daimler Benz Ag GEAR OIL PUMP, ESPECIALLY FOR MOTOR VEHICLE COMBUSTION MACHINES
JPS5274102A (en) * 1975-12-17 1977-06-21 Unitika Ltd Gear pumps for spinning machines
WO1995022002A1 (en) * 1994-02-14 1995-08-17 Rhone-Poulenc Viscosuisse Sa Spinning pump for polyamides
GB2312476A (en) * 1996-04-24 1997-10-29 Sauer Sundstrand Ltd Pressure balance control in gear pumps
JPH11159477A (en) * 1997-11-26 1999-06-15 Shimadzu Corp Hydraulic gear pump

Also Published As

Publication number Publication date
DE102009029522A1 (en) 2011-03-24
IN2012DN02315A (en) 2015-08-21
CN102498296A (en) 2012-06-13
EP2478224A2 (en) 2012-07-25
CN102498296B (en) 2015-11-25
WO2011032766A2 (en) 2011-03-24

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