EP1363025A3 - Variable capacity pump - Google Patents

Variable capacity pump Download PDF

Info

Publication number
EP1363025A3
EP1363025A3 EP03011033A EP03011033A EP1363025A3 EP 1363025 A3 EP1363025 A3 EP 1363025A3 EP 03011033 A EP03011033 A EP 03011033A EP 03011033 A EP03011033 A EP 03011033A EP 1363025 A3 EP1363025 A3 EP 1363025A3
Authority
EP
European Patent Office
Prior art keywords
piston
variable capacity
capacity pump
wheels
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.)
Granted
Application number
EP03011033A
Other languages
German (de)
French (fr)
Other versions
EP1363025B1 (en
EP1363025A2 (en
Inventor
Gerold Missel
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.)
Schwaebische Huettenwerke Automotive GmbH
Original Assignee
Schwaebische Huettenwerke Automotive 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=29265354&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1363025(A3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Schwaebische Huettenwerke Automotive GmbH filed Critical Schwaebische Huettenwerke Automotive GmbH
Publication of EP1363025A2 publication Critical patent/EP1363025A2/en
Publication of EP1363025A3 publication Critical patent/EP1363025A3/en
Application granted granted Critical
Publication of EP1363025B1 publication Critical patent/EP1363025B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
    • F04C14/10—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by changing the positions of the inlet or outlet openings with respect to the working chamber
    • 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
    • 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
    • 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
    • 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

Abstract

The casing (3) contains a gear pump with two wheels (1,2). These have adjustable engagement, to vary the quantity of fluid pumped from inlet (5) to outlet (6). A piston (8) coupled to at least one of the wheels, makes the adjustment. Piston chambers (9,10) are subjected to pressures (P9, P10), which act on the piston, through connections (11,12) with the high pressure side. A spring in the first piston chamber (9) acts on the piston, against fluid pressure (P9). A controller (15) adjusts the pressure in the second chamber (10), in accordance with a control magnitude (PR) which sets the rate of delivery.
EP03011033A 2002-05-17 2003-05-19 Variable capacity pump Expired - Lifetime EP1363025B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10222131 2002-05-17
DE10222131A DE10222131C5 (en) 2002-05-17 2002-05-17 Positive displacement pump with delivery volume adjustment

Publications (3)

Publication Number Publication Date
EP1363025A2 EP1363025A2 (en) 2003-11-19
EP1363025A3 true EP1363025A3 (en) 2006-04-19
EP1363025B1 EP1363025B1 (en) 2011-07-06

Family

ID=29265354

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03011033A Expired - Lifetime EP1363025B1 (en) 2002-05-17 2003-05-19 Variable capacity pump

Country Status (4)

Country Link
EP (1) EP1363025B1 (en)
AT (1) ATE515636T1 (en)
DE (1) DE10222131C5 (en)
ES (1) ES2367969T3 (en)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004002062A1 (en) * 2004-01-15 2005-08-04 Volkswagen Ag Gear pump with flow control
AT500629B8 (en) * 2004-05-27 2007-02-15 Tcg Unitech Ag GEAR PUMP
DE102004028830A1 (en) * 2004-06-15 2005-12-29 Zf Friedrichshafen Ag Hydraulic pump has two intermeshing gear wheels each adjacent to a chamber
DE102006011200B4 (en) 2006-03-10 2014-11-13 Schwäbische Hüttenwerke Automotive GmbH & Co. KG External gear pump with discharge pocket
GB2436594A (en) * 2006-03-28 2007-10-03 Concentric Vfp Ltd A variable output pump assembly
DE102006018124A1 (en) * 2006-04-19 2007-10-25 Schwäbische Hüttenwerke Automotive GmbH & Co. KG Adjustable rotary pump with wear reduction
DE102006044810A1 (en) * 2006-09-22 2008-03-27 Bayerische Motoren Werke Ag Fluid pump i.e. external gear pump, has secondary pump wheel rotatably supported on adjustment piston relative to adjustment piston in axially immovable manner, where adjustment piston is pre-stressed in direction of rotation around axle
EP2303362B1 (en) 2008-07-18 2019-06-05 Becton, Dickinson and Company Dual chamber and gear pump assembly for a high pressure delivery system
DE102009019419B4 (en) 2009-04-29 2016-01-14 Schwäbische Hüttenwerke Automotive GmbH Rotary displacement machine with simplified bearing axle or shaft
DE102009019418B4 (en) 2009-04-29 2013-05-16 Schwäbische Hüttenwerke Automotive GmbH Circulating positive displacement pump with improved bearing lubrication
DE102009060189B4 (en) 2009-12-23 2017-07-13 Schwäbische Hüttenwerke Automotive GmbH Regulating device for adjusting the delivery volume of a pump
DE102009060188B4 (en) * 2009-12-23 2016-07-07 Schwäbische Hüttenwerke Automotive GmbH Adjustment valve for adjusting the delivery volume of a positive displacement pump with cold start function
DE102010003574B4 (en) 2010-03-31 2012-02-09 Schwäbische Hüttenwerke Automotive GmbH Press assembly and method for producing a press composite
DE102010020299B4 (en) 2010-05-12 2013-05-16 Schwäbische Hüttenwerke Automotive GmbH Pump with friction clutch speed control
DE102010038430B4 (en) * 2010-07-26 2012-12-06 Schwäbische Hüttenwerke Automotive GmbH Positive displacement pump with suction groove
DE102010051141B3 (en) * 2010-11-11 2011-12-29 Dieter Voigt External gear-oil pump for combustion engine, has two gear wheels arranged in housing, and control piston arranged in stepped bore, where bore is formed as through-hole of housing and closed at side by cover
DE102011005408B4 (en) 2011-03-11 2014-02-13 Schwäbische Hüttenwerke Automotive GmbH Method for producing a joint in a pump or a camshaft phaser
DE102011013756A1 (en) * 2011-03-12 2012-09-13 Volkswagen Aktiengesellschaft Gear pump, particularly oil pump for internal combustion engine, has control valve, which is additionally connected with outlet over throttle in position of piston for connecting control fluid in fluid conducting manner
DE102012214503B4 (en) 2012-08-14 2017-10-12 Schwäbische Hüttenwerke Automotive GmbH Rotary pump with adjustable delivery volume, in particular for adjusting a coolant pump
JP6021623B2 (en) 2012-12-11 2016-11-09 三菱重工業株式会社 Inverter-integrated electric compressor
DE102014207070B4 (en) 2014-04-11 2016-11-24 Volkswagen Aktiengesellschaft pump
CN105041639A (en) * 2015-08-27 2015-11-11 刘凡 External gearing variable gear pump
DE102015015481A1 (en) 2015-11-28 2016-07-21 Daimler Ag Positive displacement pump for a motor vehicle
DE102017117787A1 (en) 2017-08-04 2019-02-07 Schwäbische Hüttenwerke Automotive GmbH Adjustable external gear pump
DE102018211125B4 (en) * 2018-07-05 2020-03-26 Continental Automotive Gmbh Gear pump and heat engine with a gear pump

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2008952A1 (en) * 1970-02-26 1971-09-09 Tuppeck, Horst F.W., 4133 Neukirchen-Vluyn Adjustable gear pump
DE3528651A1 (en) * 1985-08-09 1987-02-19 Rohs Hans Guenther Prof Dr Ing GEAR PUMP
EP0565340A1 (en) * 1992-04-08 1993-10-13 Concentric Pumps Limited Variable output internal pump
US6244839B1 (en) * 1997-11-14 2001-06-12 University Of Arkansas Pressure compensated variable displacement internal gear pumps
DE10043842A1 (en) * 2000-03-02 2001-09-06 Volkswagen Ag Gear pump with a displacement unit that changes the delivery rate
EP1182351A1 (en) * 2000-08-03 2002-02-27 Schwäbische Hüttenwerke GmbH Ring gear pump with eccentricity adjustment
DE10207350A1 (en) * 2001-02-23 2002-09-12 Joma Hydromechanic Gmbh Volume flow variable rotor pump

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1376732A (en) * 1971-04-16 1974-12-11 Lucas Industries Ltd Hydraulic pumps
US4259039A (en) * 1979-03-20 1981-03-31 Integral Hydraulic & Co. Adjustable volume vane-type pump
DE3327978A1 (en) 1983-08-03 1985-02-21 Mannesmann Rexroth GmbH, 8770 Lohr Arrangement for loading a pressure-medium accumulator
IT1167695B (en) * 1983-12-23 1987-05-13 Atos Oleodinamica Spa VARIABLE DISPLACEMENT VOLUMETRIC VANE PUMP FOR HYDRAULIC FLUID OPERATION
DE3503491A1 (en) 1985-02-01 1986-08-14 Mannesmann Rexroth GmbH, 8770 Lohr CONTROL VALVE FOR A PUMP WITH VARIABLE DISPLACEMENT VOLUME
GB8706630D0 (en) 1987-03-20 1987-04-23 Concentric Pumps Ltd Variable output oil pump
DE4121074A1 (en) * 1991-06-26 1993-01-07 Pierburg Gmbh External gear pump - has main drive gear fixed inside housing and driven gear adjusted by pressure differential piston action
DE19736846A1 (en) * 1997-08-23 1999-03-04 Mannesmann Vdo Ag Pressure control arrangement
DE19847132C2 (en) * 1998-10-13 2001-05-31 Schwaebische Huettenwerke Gmbh External gear pump with delivery volume limitation
DE10127478A1 (en) * 2001-06-07 2002-12-12 Iav Gmbh Lubrication device, for internal combustion engine, has return valve response pressure corresponding to feed pressure ensuring lubricant pressure for permitted filter pressure drop

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2008952A1 (en) * 1970-02-26 1971-09-09 Tuppeck, Horst F.W., 4133 Neukirchen-Vluyn Adjustable gear pump
DE3528651A1 (en) * 1985-08-09 1987-02-19 Rohs Hans Guenther Prof Dr Ing GEAR PUMP
EP0565340A1 (en) * 1992-04-08 1993-10-13 Concentric Pumps Limited Variable output internal pump
US6244839B1 (en) * 1997-11-14 2001-06-12 University Of Arkansas Pressure compensated variable displacement internal gear pumps
DE10043842A1 (en) * 2000-03-02 2001-09-06 Volkswagen Ag Gear pump with a displacement unit that changes the delivery rate
EP1182351A1 (en) * 2000-08-03 2002-02-27 Schwäbische Hüttenwerke GmbH Ring gear pump with eccentricity adjustment
DE10207350A1 (en) * 2001-02-23 2002-09-12 Joma Hydromechanic Gmbh Volume flow variable rotor pump

Also Published As

Publication number Publication date
EP1363025B1 (en) 2011-07-06
DE10222131A1 (en) 2003-12-04
DE10222131B4 (en) 2005-05-12
ATE515636T1 (en) 2011-07-15
DE10222131C5 (en) 2011-08-11
ES2367969T3 (en) 2011-11-11
EP1363025A2 (en) 2003-11-19

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