EP0362906A3 - Internal gear pump - Google Patents

Internal gear pump Download PDF

Info

Publication number: EP0362906A3
Authority: EP; European Patent Office
Prior art keywords: internal gear; gear pump; pump; internal; gear
Prior art date: 1986-07-19
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

EP89122024A

Other languages

German (de)

Other versions

EP0362906A2 (en

EP0362906B1 (en

Inventor

Siegfried Hertell

Dieter Otto

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.)

Oerlikon Barmag AG

Original Assignee

Barmag AG

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.)

1986-07-19

Filing date

1987-06-27

Publication date

1990-05-30

1986-07-19 Priority claimed from DE19863624517 external-priority patent/DE3624517A1/en

1987-06-27 Application filed by Barmag AG filed Critical Barmag AG

1987-06-27 Priority to ES89122024T priority Critical patent/ES2024708B3/en

1987-06-27 Priority to EP89122024A priority patent/EP0362906B1/en

1990-04-11 Publication of EP0362906A2 publication Critical patent/EP0362906A2/en

1990-05-30 Publication of EP0362906A3 publication Critical patent/EP0362906A3/en

1991-09-04 Application granted granted Critical

1991-09-04 Publication of EP0362906B1 publication Critical patent/EP0362906B1/en

2007-06-27 Anticipated expiration legal-status Critical

Status 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
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/06—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
- F04C15/064—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston machines or pumps
- F04C15/066—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston machines or pumps of the non-return type
- F04C15/068—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston machines or pumps of the non-return type of the elastic type, e.g. reed valves
- 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
- F04C2/084—Toothed wheels
- 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

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
General Engineering & Computer Science (AREA)
Rotary Pumps (AREA)

EP89122024A 1986-07-19 1987-06-27 Internal gear pump Expired - Lifetime EP0362906B1 (en)

Priority Applications (2)

Application Number	Priority Date	Filing Date	Title
ES89122024T ES2024708B3 (en)	1986-07-19	1987-06-27	INTERIOR GEAR WHEEL PUMP
EP89122024A EP0362906B1 (en)	1986-07-19	1987-06-27	Internal gear pump

Applications Claiming Priority (5)

Application Number	Priority Date	Filing Date	Title
DE19863624517 DE3624517A1 (en)	1986-07-19	1986-07-19	Internal gear pump
DE3624517		1986-07-19
DE3704548		1987-02-13
DE3704548		1987-02-13
EP89122024A EP0362906B1 (en)	1986-07-19	1987-06-27	Internal gear pump

Related Parent Applications (1)

Application Number	Title	Priority Date	Filing Date
EP87109295.3 Division		1987-06-27

Publications (3)

Publication Number	Publication Date
EP0362906A2 EP0362906A2 (en)	1990-04-11
EP0362906A3 true EP0362906A3 (en)	1990-05-30
EP0362906B1 EP0362906B1 (en)	1991-09-04

Family

ID=25845735

Family Applications (2)

Application Number	Title	Priority Date	Filing Date
EP89122024A Expired - Lifetime EP0362906B1 (en)	1986-07-19	1987-06-27	Internal gear pump
EP87109295A Expired - Lifetime EP0254077B1 (en)	1986-07-19	1987-06-27	Internal gear pump

Family Applications After (1)

Application Number	Title	Priority Date	Filing Date
EP87109295A Expired - Lifetime EP0254077B1 (en)	1986-07-19	1987-06-27	Internal gear pump

Country Status (4)

Country	Link
US (1)	US4813853A (en)
EP (2)	EP0362906B1 (en)
DE (2)	DE3772775D1 (en)
ES (2)	ES2022841B3 (en)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE3737961A1 (en) *	1987-11-07	1989-05-18	Barmag Barmer Maschf	Internal-gear pump
DE4107704C2 (en) *	1990-03-15	1994-12-01	Barmag Luk Automobiltech	hydraulic pump
IT1271052B (en) *	1993-11-18	1997-05-26		INTERNAL GEAR PUMP WITH VOLUMETRIC PROJECTIONS
US6544008B1 (en) *	1997-07-18	2003-04-08	John K. Apostolides	Internal vent for reducing seal pressure in prelubrication pump assembly
US6461118B1 (en) *	1997-07-18	2002-10-08	Rpm Industries, Inc.	Oil pump by-pass valve for an internal combustion engine
US7137789B2 (en) *	1997-07-18	2006-11-21	Rpm Industries, Inc.	Vent for reducing seal pressure in pump assembly
US6708710B1 (en) *	1997-10-30	2004-03-23	Rpm Industries, Inc.	Vehicle fluid change apparatus and method
US6988506B1 (en)	1997-10-30	2006-01-24	Rpm Industries, Inc.	Fluid transfer system
US9062575B2 (en) *	1997-10-30	2015-06-23	RPM Industries, LLC	Methods and systems for performing, monitoring and analyzing multiple machine fluid processes
US7150286B2 (en) *	1997-10-30	2006-12-19	Rpm Industries, Inc.	Methods and systems for performing, monitoring and analyzing multiple machine fluid processes
DE19804133A1 (en) *	1998-02-03	1999-08-12	Voith Turbo Kg	Sickle-free internal gear pump
US6192925B1 (en) *	1999-10-06	2001-02-27	Der-Fan Shen	Flow regulator for water pump
DE10052779A1 (en) *	2000-10-25	2002-05-08	Eckerle Ind Elektronik Gmbh	Internal gear pump without filler
US20060127264A1 (en) *	2001-02-01	2006-06-15	Giovanni Aquino	Multi-vane device
US6853954B2 (en)	2002-09-24	2005-02-08	John K. Apostolides	Methods and systems for collecting and processing data in association with machine operation and maintenance
JP4169724B2 (en) *	2003-07-17	2008-10-22	株式会社山田製作所	Trochoid oil pump
JP4928447B2 (en) *	2004-06-24	2012-05-09	ルークアウトモービルテヒニークゲゼルシャフトミットベシュレンクテルハフツングウントコンパニーコマンディトゲゼルシャフト	pump
JP4319617B2 (en) *	2004-12-27	2009-08-26	株式会社山田製作所	Trochoid oil pump
JP4916155B2 (en)	2004-12-28	2012-04-11	デルタ工業株式会社	Reclining device
CN102131673B (en) *	2008-01-17	2015-06-17	费希尔动力有限公司	Round recliner mechanism
JP5795726B2 (en) *	2011-06-27	2015-10-14	株式会社山田製作所	Oil pump
DE102011089609A1 (en) *	2011-12-22	2013-06-27	Robert Bosch Gmbh	Internal gear pump
US9296315B2 (en)	2013-02-26	2016-03-29	Fisher & Company, Incorporated	Recliner mechanism with backdriving feature
US9902297B2 (en)	2014-06-11	2018-02-27	Fisher & Company, Incorporated	Latch mechanism with locking feature
JP6682300B2 (en) *	2016-03-04	2020-04-15	シロキ工業株式会社	Seat reclining device
CA3208728A1 (en) *	2021-02-19	2022-08-25	1158992 B.C. Ltd.	Fluid transfer device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2428181A (en) *	1944-10-27	1947-09-30	Frank C Sibley	Rotary gear pump
FR2228962A1 (en) *	1973-05-10	1974-12-06	Lucas Aerospace Ltd
US4025243A (en) *	1973-01-05	1977-05-24	Gresen Manufacturing Company	Orbital device
DE8406556U1 (en) *	1984-03-02	1985-06-27	Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid	Gear pump with plate-shaped housing

Family Cites Families (34)

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Publication number	Priority date	Publication date	Assignee	Title
GB191509359A (en) *	1915-06-25	1916-06-22	Walter Elsworthy Lilly	Improvements in or relating to Rotary Engines, Pumps, Meters, and Blowers.
US1863335A (en) *	1922-12-20	1932-06-14	Hill Compressor & Pump Company	Rotary pump
DE409134C (en) *	1924-01-22	1925-02-02	Bbc Brown Boveri & Cie	Compressor or expansion engine in the manner of a gear pump
DE445893C (en) *	1924-03-14	1927-06-20	Hill Compressor & Pump Co Inc	Compressor with rotating pistons
GB265511A (en) *	1926-10-30	1927-02-10	Sidney Zaleski Hall	Improvements in and relating to rotary pumps
US1861155A (en) *	1929-06-07	1932-05-31	Harry Barker	Screw pump
FR912425A (en) *	1945-02-26	1946-08-08		Fluid compressors and its applications
US2916999A (en) *	1956-05-25	1959-12-15	Gen Motors Corp	Variable discharge vane pump
US2918009A (en) *	1957-02-01	1959-12-22	Dieny & Lucas Soc Nouv	Injection-compressor apparatus
US2997227A (en) *	1958-12-17	1961-08-22	Bendix Westinghouse Automotive	Unloader for rotary compressors
US3045778A (en) *	1960-03-10	1962-07-24	Roper Hydraulics Inc	Lube pumping system
DE1426751A1 (en) *	1965-03-04	1968-11-21	Danfoss As	Rotary piston machine
AT292464B (en) *	1968-11-18	1971-08-25	Hohenzollern Huettenverwalt	Hydraulic gear machine
DE2421891A1 (en) *	1974-05-07	1975-11-20	Bosch Gmbh Robert	GEAR MOTOR
DE2425022A1 (en) *	1974-05-24	1975-12-04	Bosch Gmbh Robert	PISTON PUMP
CH591627A5 (en) *	1975-12-19	1977-09-30	Rollstar Ag
DE2705256A1 (en) *	1977-02-09	1978-08-10	Bosch Gmbh Robert	Pump or motor with internally and externally toothed wheels - has tooth profiles with non-radial axis of symmetry to form multiple vanes
DE2720406A1 (en) *	1977-05-06	1978-11-09	Audi Nsu Auto Union Ag	INTERNAL GEAR PUMP PRESENTLY FOR COMBUSTION ENGINES IN DRIVE UNITS OF MOTOR VEHICLES
DE2758376A1 (en) *	1977-12-28	1979-07-05	Schwaebische Huettenwerke Gmbh	Piston engine with internal gear ring oil pump - having pinion mounted directly on engine crankshaft and crescent-like spacer in max. with section of working chamber
DE2815362A1 (en) *	1978-04-10	1979-10-18	Bosch Gmbh Robert	Hydraulic system with common pump and several outlets - has throttle valve on pump inlet controlled by high pressure outlets
DE2920685A1 (en) *	1979-05-22	1980-12-04	Bosch Gmbh Robert	COMPRESSED AIR GENERATION SYSTEM
DE2933084A1 (en) *	1979-08-16	1981-03-26	Robert Bosch Gmbh, 70469 Stuttgart	Pressure control for air compressor - has inlet line contg. two-position valve pilot operated to close via receiver pressure operated valve
DE3005657A1 (en) *	1980-02-15	1981-08-20	Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen	GEAR PUMP
US4480962A (en) *	1980-08-11	1984-11-06	Vickers, Incorporated	Pump with inlet passages downstream and through its flow control valve
GB2104153B (en) *	1981-08-15	1984-08-30	Concentric Pumps Ltd	Rotary positive-displacement fluid-pumps
DE3210759A1 (en) *	1981-09-17	1983-10-06	Walter Schopf	Pump combination with flow control device
US4553966A (en) *	1983-09-19	1985-11-19	Americal Corporation	Device for draining body fluids and irrigating solutions
DE3444859A1 (en) *	1983-12-14	1985-06-27	Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid	Rotary cellular pump for hydraulic systems
CH667702A5 (en) *	1984-02-15	1988-10-31	Barmag Barmer Maschf	GEAR PUMP.
DE3506629A1 (en) *	1984-03-01	1985-10-03	Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid	Hydraulic systems
JPS614882A (en) *	1984-06-18	1986-01-10	Toyoda Mach Works Ltd	Gear pump
JPS618484A (en) *	1984-06-22	1986-01-16	Mitsubishi Metal Corp	Internal gear pump
DE3481536D1 (en) *	1984-09-05	1990-04-12	Hobourn Engineering Ltd	PUMP.
GB2167130B (en) *	1984-11-19	1988-01-13	Hydrovane Compressor	Rotary positive displacement air compressor

1987
- 1987-06-27 ES ES87109295T patent/ES2022841B3/en not_active Expired - Lifetime
- 1987-06-27 EP EP89122024A patent/EP0362906B1/en not_active Expired - Lifetime
- 1987-06-27 DE DE8989122024T patent/DE3772775D1/en not_active Expired - Fee Related
- 1987-06-27 EP EP87109295A patent/EP0254077B1/en not_active Expired - Lifetime
- 1987-06-27 ES ES89122024T patent/ES2024708B3/en not_active Expired - Lifetime
- 1987-06-27 DE DE8787109295T patent/DE3766177D1/en not_active Expired - Fee Related
- 1987-07-15 US US07/073,647 patent/US4813853A/en not_active Expired - Lifetime

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2428181A (en) *	1944-10-27	1947-09-30	Frank C Sibley	Rotary gear pump
US4025243A (en) *	1973-01-05	1977-05-24	Gresen Manufacturing Company	Orbital device
FR2228962A1 (en) *	1973-05-10	1974-12-06	Lucas Aerospace Ltd
DE8406556U1 (en) *	1984-03-02	1985-06-27	Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid	Gear pump with plate-shaped housing

Also Published As

Publication number	Publication date
EP0254077A2 (en)	1988-01-27
ES2022841B3 (en)	1991-12-16
DE3772775D1 (en)	1991-10-10
EP0362906A2 (en)	1990-04-11
EP0254077B1 (en)	1990-11-14
EP0362906B1 (en)	1991-09-04
ES2024708B3 (en)	1992-03-01
EP0254077A3 (en)	1988-03-09
US4813853A (en)	1989-03-21
DE3766177D1 (en)	1990-12-20

Legal Events

Date	Code	Title	Description
1990-02-24	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
1990-04-10	PUAL	Search report despatched	Free format text: ORIGINAL CODE: 0009013
1990-04-11	17P	Request for examination filed	Effective date: 19891129
1990-04-11	AC	Divisional application: reference to earlier application	Ref document number: 254077 Country of ref document: EP
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1991-03-27	17Q	First examination report despatched	Effective date: 19910214
1991-03-29	ITF	It: translation for a ep patent filed	Owner name: DE DOMINICIS & MAYER S.R.L.
1991-07-18	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
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1992-07-09	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT
1992-08-26	26N	No opposition filed
1993-06-09	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: SE Payment date: 19930609 Year of fee payment: 7
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1995-01-31	EUG	Se: european patent has lapsed	Ref document number: 89122024.6 Effective date: 19950110
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Publication	Publication Date	Title
EP0254077A3 (en)	1988-03-09	Internal gear pump
EP0236982A3 (en)	1989-11-08	Pump
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PL256889A1 (en)	1987-07-27	Gear pump
KR870000885Y1 (en)	1987-03-06	Gear pump
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