EP2208890A3 - Rotation displacement pump - Google Patents

Rotation displacement pump Download PDF

Info

Publication number
EP2208890A3
EP2208890A3 EP10150861A EP10150861A EP2208890A3 EP 2208890 A3 EP2208890 A3 EP 2208890A3 EP 10150861 A EP10150861 A EP 10150861A EP 10150861 A EP10150861 A EP 10150861A EP 2208890 A3 EP2208890 A3 EP 2208890A3
Authority
EP
European Patent Office
Prior art keywords
pump
displacement pump
boundary surface
pump housing
rotary displacement
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.)
Withdrawn
Application number
EP10150861A
Other languages
German (de)
French (fr)
Other versions
EP2208890A2 (en
Inventor
Klaus Lübke
Sven Borghoff
Sebastian M. Siegmund
Andreas Klomfaß
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.)
Gather Industrie GmbH
Original Assignee
Gather Industrie 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 Gather Industrie GmbH filed Critical Gather Industrie GmbH
Publication of EP2208890A2 publication Critical patent/EP2208890A2/en
Publication of EP2208890A3 publication Critical patent/EP2208890A3/en
Withdrawn legal-status Critical Current

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
    • F04C14/24—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves
    • F04C14/26—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves using bypass channels
    • 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
    • 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
    • F04C2240/50—Bearings
    • F04C2240/51—Bearings for cantilever assemblies

Abstract

Die Erfindung betrifft eine Rotationsverdrängerpumpe (2) zum Pumpen eines Mediums, mit einem Pumpengehäuse (3), einer im Pumpengehäuse (3) ausgebildeten Aufnahmekammer (4) mit einem Einlassbereich (26) und einem Auslassbereich (27) und mindestens einem in der Aufnahmekammer (4) aufgenommenen Rotationsverdrängerelement (5, 6), das mittels mindestens eines Lagers (40, 41, 56) im Pumpengehäuse (3) drehbar gelagert ist und mindestens eine Begrenzungsfläche (21) aufweist, mit der es mindestens einen Arbeitsraum (19) der Pumpe (2) begrenzt. Es ist vorgesehen, dass die Rotationsverdrängerpumpe (2) mindestens einen Bypass (59) aufweist, der ein Rückströmen eines Teils des gepumpten Mediums vom Auslassbereich (27) in den Einlassbereich (26) ermöglicht, wobei das Rotationsverdrängerelement (5, 6) und/oder ein mit dem Rotationsverdrängerelement (5, 6) verbundenes Drehteil (35) mindestens eine Gegenfläche (64) aufweist, die den Bypass (59) begrenzt und deren Gcgcnflächcnnormalc (65) zumindest eine Komponente besitzt, die cntgegengesetzt zu der Begrenzungsflächennormalen (66) der Begrenzungsfläche (21) ausgerichtet ist.

Figure imgaf001
The invention relates to a rotary displacement pump (2) for pumping a medium, comprising a pump housing (3), a receiving chamber (4) formed in the pump housing (3) with an inlet region (26) and an outlet region (27) and at least one in the receiving chamber (3). 4) received Rotationsverdrängerelement (5, 6) which is rotatably mounted in the pump housing (3) by means of at least one bearing (40, 41, 56) and at least one boundary surface (21), with which there is at least one working space (19) of the pump (2) limited. It is provided that the rotary displacement pump (2) has at least one bypass (59), which allows a return flow of a portion of the pumped medium from the outlet region (27) in the inlet region (26), wherein the Rotationsverdrängerelement (5, 6) and / or a rotary member (35) connected to the rotary displacement member (5, 6) has at least one mating surface (64) defining the bypass (59) and the surface normal (65) thereof having at least one component opposed to the boundary surface normal (66) of the boundary surface (21) is aligned.
Figure imgaf001
EP10150861A 2009-01-16 2010-01-15 Rotation displacement pump Withdrawn EP2208890A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202009000690U DE202009000690U1 (en) 2009-01-16 2009-01-16 Rotary displacement

Publications (2)

Publication Number Publication Date
EP2208890A2 EP2208890A2 (en) 2010-07-21
EP2208890A3 true EP2208890A3 (en) 2011-11-30

Family

ID=40531029

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10150861A Withdrawn EP2208890A3 (en) 2009-01-16 2010-01-15 Rotation displacement pump

Country Status (3)

Country Link
US (1) US20100183454A1 (en)
EP (1) EP2208890A3 (en)
DE (1) DE202009000690U1 (en)

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Publication number Priority date Publication date Assignee Title
DE102009028154A1 (en) 2009-07-31 2011-02-03 Robert Bosch Gmbh gear pump
JP5889614B2 (en) * 2011-11-29 2016-03-22 株式会社トクヤマデンタル Paste kneading equipment
US9624929B2 (en) * 2012-12-21 2017-04-18 Lg Innotek Co., Ltd. Electric pump
DE102013203331A1 (en) * 2013-02-28 2014-08-28 Zf Friedrichshafen Ag Rotary damper for a vehicle
US10087758B2 (en) 2013-06-05 2018-10-02 Rotoliptic Technologies Incorporated Rotary machine
JP2015108327A (en) * 2013-12-04 2015-06-11 株式会社神戸製鋼所 Refrigerant pump and binary power generation system using the refrigerant pump
JP6271992B2 (en) 2013-12-13 2018-01-31 Ntn株式会社 Internal gear pump
US11136975B2 (en) * 2016-08-09 2021-10-05 Nidec Corporation Drive apparatus having oil passage defined in stopper body
IT201600125212A1 (en) * 2016-12-12 2018-06-12 Bosch Gmbh Robert GEAR ELECTRIC PUMP
GB2591927A (en) 2018-09-11 2021-08-11 Rotoliptic Tech Incorporated Helical trochoidal rotary machines
US11815094B2 (en) 2020-03-10 2023-11-14 Rotoliptic Technologies Incorporated Fixed-eccentricity helical trochoidal rotary machines
US11802558B2 (en) 2020-12-30 2023-10-31 Rotoliptic Technologies Incorporated Axial load in helical trochoidal rotary machines

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2339966A (en) * 1939-08-16 1944-01-25 Equi Flow Inc Internal gear pump
DE2150070A1 (en) * 1970-10-07 1972-04-13 Curtiss Wright Corp Liquid dispenser
DE3909319A1 (en) * 1988-03-28 1989-10-26 Aisin Seiki GEAR MOTOR
US6769889B1 (en) * 2003-04-02 2004-08-03 Delphi Technologies, Inc. Balanced pressure gerotor fuel pump
US20050069447A1 (en) * 2002-12-19 2005-03-31 Willi Schneider Variable volume flow internal gear pump
DE102007030528A1 (en) * 2007-06-30 2009-01-08 Daimler Ag Rotary displacement machine for conveyance of fluids, has housing provided as machine unit where rotor is accommodated in housing that is provided as another machine unit

Family Cites Families (11)

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Publication number Priority date Publication date Assignee Title
US3072477A (en) * 1959-12-07 1963-01-08 Waukesha Foundry Co Non-galling alloy
US3805526A (en) * 1972-11-03 1974-04-23 Aplitec Ltd Variable displacement rotary hydraulic machines
US4492539A (en) * 1981-04-02 1985-01-08 Specht Victor J Variable displacement gerotor pump
DE4135725C2 (en) * 1991-10-30 1994-05-26 Voith Gmbh J M Internal gear pump with two ring gears and a common pinion
US5201642A (en) * 1991-11-27 1993-04-13 Warren Pumps, Inc. Magnetic drive pump
JP2005127161A (en) * 2003-10-21 2005-05-19 Aisin Seiki Co Ltd Engine unit case
JP2005146994A (en) * 2003-11-17 2005-06-09 Hitachi Ltd Oil pump
US7775779B2 (en) * 2005-11-17 2010-08-17 Sclumberger Technology Corporation Pump apparatus, systems and methods
US7438542B2 (en) * 2005-12-19 2008-10-21 Dana Automotive Systems Group, Llc. Fluid pump assembly
US7739870B2 (en) * 2006-08-04 2010-06-22 Briggs And Stratton Corporation Hydrostatic transmission
JP5126588B2 (en) * 2008-01-08 2013-01-23 アイシン精機株式会社 Electric pump

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2339966A (en) * 1939-08-16 1944-01-25 Equi Flow Inc Internal gear pump
DE2150070A1 (en) * 1970-10-07 1972-04-13 Curtiss Wright Corp Liquid dispenser
DE3909319A1 (en) * 1988-03-28 1989-10-26 Aisin Seiki GEAR MOTOR
US20050069447A1 (en) * 2002-12-19 2005-03-31 Willi Schneider Variable volume flow internal gear pump
US6769889B1 (en) * 2003-04-02 2004-08-03 Delphi Technologies, Inc. Balanced pressure gerotor fuel pump
DE102007030528A1 (en) * 2007-06-30 2009-01-08 Daimler Ag Rotary displacement machine for conveyance of fluids, has housing provided as machine unit where rotor is accommodated in housing that is provided as another machine unit

Also Published As

Publication number Publication date
DE202009000690U1 (en) 2009-04-09
EP2208890A2 (en) 2010-07-21
US20100183454A1 (en) 2010-07-22

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