EP0608144A3 - Axial piston pump. - Google Patents

Axial piston pump. Download PDF

Info

Publication number: EP0608144A3
Authority: EP; European Patent Office
Prior art keywords: piston pump; axial piston; axial; pump; piston
Prior art date: 1993-01-21
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

EP94300461A

Other languages

German (de)

French (fr)

Other versions

EP0608144A2 (en

EP0608144B1 (en

Inventor

Chang Chun Du

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.)

David Brown Hydraulics Ltd

Original Assignee

Hamworthy Hydraulics Ltd

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.)

1993-01-21

Filing date

1994-01-21

Publication date

1994-12-21

1994-01-21 Application filed by Hamworthy Hydraulics Ltd filed Critical Hamworthy Hydraulics Ltd

1994-07-27 Publication of EP0608144A2 publication Critical patent/EP0608144A2/en

1994-12-21 Publication of EP0608144A3 publication Critical patent/EP0608144A3/en

1997-06-18 Application granted granted Critical

1997-06-18 Publication of EP0608144B1 publication Critical patent/EP0608144B1/en

2014-01-21 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Classifications

- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F04B1/20—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
- F04B1/2014—Details or component parts
- F04B1/2021—Details or component parts characterised by the contact area between cylinder barrel and valve plate
- F04B1/2028—Bearings
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F04B1/20—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
- F04B1/2007—Arrangements for pressing the cylinder barrel against the valve plate, e.g. by fluid pressure
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F04B1/20—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
- F04B1/2014—Details or component parts
- F04B1/2078—Swash plates
- F04B1/2085—Bearings for swash plates or driving axles

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
General Engineering & Computer Science (AREA)
Physics & Mathematics (AREA)
Fluid Mechanics (AREA)
Reciprocating Pumps (AREA)

EP19940300461 1993-01-21 1994-01-21 Axial piston pump Expired - Lifetime EP0608144B1 (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
GB9301163A GB2274491B (en)	1993-01-21	1993-01-21	Axial piston pump
GB9301163		1993-01-21

Publications (3)

Publication Number	Publication Date
EP0608144A2 EP0608144A2 (en)	1994-07-27
EP0608144A3 true EP0608144A3 (en)	1994-12-21
EP0608144B1 EP0608144B1 (en)	1997-06-18

Family

ID=10729077

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP19940300461 Expired - Lifetime EP0608144B1 (en)	1993-01-21	1994-01-21	Axial piston pump

Country Status (3)

Country	Link
EP (1)	EP0608144B1 (en)
DE (1)	DE69403819D1 (en)
GB (1)	GB2274491B (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP3154329B2 (en) *	1998-07-21	2001-04-09	川崎重工業株式会社	Axial piston pump
DE19953183C2 (en) *	1999-11-04	2001-12-06	Erich Scheugenpflug	Microdispenser
US20060120882A1 (en) *	2004-08-20	2006-06-08	Glenn Jordan	Motor or pump assemblies
WO2006130837A2 (en) *	2005-06-02	2006-12-07	Kmt Waterjet Systems, Inc.	High pressure rotary pump
DE102005030485A1 (en) *	2005-06-28	2007-01-04	Framatome Anp Gmbh	Pumping device for nuclear installations
EP1780410B1 (en)	2005-10-26	2013-04-03	Poclain Hydraulics	Variable displacement hydraulic machine having a swash plate
DE102006037690A1 (en) *	2006-08-11	2008-02-14	Robert Bosch Gmbh	axial piston
US9115748B2 (en) *	2008-04-01	2015-08-25	Purdue Research Foundation	Axial sliding bearing and method of reducing power losses thereof
DE102012214830B4 (en) *	2012-08-21	2022-06-30	Robert Bosch Gmbh	Hydrostatic axial piston machine with adjustable swash plate or swivel cradle and associated slide bearing with hydrostatic pressure field, whose edge contour design minimizes the leakage flow into the housing
AU2014270792B2 (en) *	2013-05-22	2017-08-31	Hydac Drive Center Gmbh	Axial piston pump having a swash-plate type construction
DE102013221623A1 (en)	2013-10-24	2015-04-30	Robert Bosch Gmbh	axial piston
DE102017105610A1 (en) *	2017-03-16	2018-09-20	Volkswagen Aktiengesellschaft	Axial piston motor and cycle device
CN108916037B (en) *	2018-10-23	2019-02-19	江苏恒立液压科技有限公司	Hydraulic planger pump with swash plate seat positioning device
KR102592519B1 (en) *	2021-07-28	2023-10-24	주식회사 모트롤	Seal cover and driving device having the same

Citations (14)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2241701A (en) *	1937-05-26	1941-05-13	Waterbury Tool Co	Power transmission
GB1026343A (en) *	1962-02-19	1966-04-20	Lucas Industries Ltd	Hydraulic pumps and motors
DE1653565B1 (en) *	1967-06-16	1969-12-04	Und Eisengiesserei A Beien Mas	Control device on a hydrostatic axial piston machine
US3487788A (en) *	1969-02-25	1970-01-06	Jean Thoma	Hydraulic unit
DE1528471A1 (en) *	1962-01-26	1970-01-29	Lely Nv C Van Der	Swash plate axial piston machine
US3495542A (en) *	1967-07-13	1970-02-17	Linde Ag	Pressure axial-piston machine with rotating drum under axial force generated by fluid
FR2124739A5 (en) *	1971-01-12	1972-09-22	Bosch
GB2134188A (en) *	1983-01-27	1984-08-08	Linde Ag	An adjustable axial piston machine of the inclined swash plate type
EP0175206A1 (en) *	1984-09-05	1986-03-26	Hitachi, Ltd.	Fluid machine
JPS61144423A (en) *	1984-12-15	1986-07-02	Mitsubishi Heavy Ind Ltd	Spiral groove thrust bearing
US4624175A (en) *	1985-08-28	1986-11-25	Wahlmark Gunnar A	Quiet hydraulic apparatus
EP0241898A2 (en) *	1986-04-15	1987-10-21	The Oilgear Company	Swashblock lubrication in axial piston fluid displacement devices
US4903577A (en) *	1987-07-22	1990-02-27	Linde Aktiengesellschaft	Adjustable axial piston machine with a swash plate design
DE4125391A1 (en) *	1990-08-01	1992-02-06	Toyoda Automatic Loom Works	AXIAL PISTON PUMP WITH A FIXED CONTROL DISC FOR THE FLOWING OF PISTONS

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB1084314A (en) *
NL293826A (en) *	1963-06-07
CH448748A (en) *	1966-03-26	1967-12-15	Thoma Jean Ulrich Dipl Phys Et	Device for supporting the cylinder block on the distributor of an axial piston machine
US3793924A (en) *	1970-03-03	1974-02-26	K Eickmann	Fluid-traversed flow piston unit
DE2241204A1 (en) *	1971-08-30	1973-03-08	Advanced Prod Pty	MULTI-CYLINDER HYDRAULIC MACHINE
DE2145056A1 (en) *	1971-09-09	1973-03-22	Bosch Gmbh Robert	PISTON MACHINE
GB1391985A (en) *	1972-04-11	1975-04-23	Eickmann K	Fluid-handling machines

1993
- 1993-01-21 GB GB9301163A patent/GB2274491B/en not_active Expired - Lifetime
1994
- 1994-01-21 DE DE69403819T patent/DE69403819D1/en not_active Expired - Lifetime
- 1994-01-21 EP EP19940300461 patent/EP0608144B1/en not_active Expired - Lifetime

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2241701A (en) *	1937-05-26	1941-05-13	Waterbury Tool Co	Power transmission
DE1528471A1 (en) *	1962-01-26	1970-01-29	Lely Nv C Van Der	Swash plate axial piston machine
GB1026343A (en) *	1962-02-19	1966-04-20	Lucas Industries Ltd	Hydraulic pumps and motors
DE1653565B1 (en) *	1967-06-16	1969-12-04	Und Eisengiesserei A Beien Mas	Control device on a hydrostatic axial piston machine
US3495542A (en) *	1967-07-13	1970-02-17	Linde Ag	Pressure axial-piston machine with rotating drum under axial force generated by fluid
US3487788A (en) *	1969-02-25	1970-01-06	Jean Thoma	Hydraulic unit
FR2124739A5 (en) *	1971-01-12	1972-09-22	Bosch
GB2134188A (en) *	1983-01-27	1984-08-08	Linde Ag	An adjustable axial piston machine of the inclined swash plate type
EP0175206A1 (en) *	1984-09-05	1986-03-26	Hitachi, Ltd.	Fluid machine
JPS61144423A (en) *	1984-12-15	1986-07-02	Mitsubishi Heavy Ind Ltd	Spiral groove thrust bearing
US4624175A (en) *	1985-08-28	1986-11-25	Wahlmark Gunnar A	Quiet hydraulic apparatus
EP0241898A2 (en) *	1986-04-15	1987-10-21	The Oilgear Company	Swashblock lubrication in axial piston fluid displacement devices
US4903577A (en) *	1987-07-22	1990-02-27	Linde Aktiengesellschaft	Adjustable axial piston machine with a swash plate design
DE4125391A1 (en) *	1990-08-01	1992-02-06	Toyoda Automatic Loom Works	AXIAL PISTON PUMP WITH A FIXED CONTROL DISC FOR THE FLOWING OF PISTONS

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 10, no. 342 (M - 536)<2398> 19 November 1986 (1986-11-19) *

Also Published As

Publication number	Publication date
EP0608144A2 (en)	1994-07-27
DE69403819D1 (en)	1997-07-24
GB2274491A (en)	1994-07-27
EP0608144B1 (en)	1997-06-18
GB2274491B (en)	1996-09-04
GB9301163D0 (en)	1993-03-10

Publication	Publication Date	Title
EP0648509A3 (en)	1995-06-28	Peristaltic pump.
GB2296296B (en)	1996-12-18	Piston pump
EP0615126A3 (en)	1995-01-18	Solvent pumping system.
EP0679099A4 (en)	1996-01-31	Peristaltic pumping assembly.
HK1017047A1 (en)	1999-11-12	Piston pump
GB9610785D0 (en)	1996-07-31	Radial piston pump
EP0608144A3 (en)	1994-12-21	Axial piston pump.
GB2308623A8 (en)	1997-08-27	Axial plunger pump
EP0626684A3 (en)	1996-01-31	Hydrodynamic pump.
EP0817916A4 (en)	2000-05-24	Multiple piston pump
GB2302714B (en)	1998-01-28	Piston pump
EP0520286A3 (en)	1993-03-24	Radial piston pump
PH31521A (en)	1998-11-03	Pump housing assembly.
GB2275740B (en)	1996-01-03	Hydraulic pump
AU6413696A (en)	1997-02-18	Axial piston micropump
GB9504892D0 (en)	1995-04-26	Piston pump
GB9409277D0 (en)	1994-06-29	Hydraulic pump
GB2310256B (en)	1999-04-14	Radial piston pump
GB2284638B (en)	1998-05-27	An internal-geared pump
DK33493A (en)	1993-09-25	Piston pump, especially axial piston pump
GB2284022B (en)	1997-07-23	Pump assembly
GB2277558B (en)	1996-06-12	Hydraulic pump
GB9213216D0 (en)	1992-08-05	Radial piston pump
PL300923A1 (en)	1995-05-15	Piston pump
ZA94876B (en)	1994-08-23	Reciprocating pump.

Legal Events

Date	Code	Title	Description
1994-06-10	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
1994-07-27	AK	Designated contracting states	Kind code of ref document: A2 Designated state(s): DE DK FR IT SE
1994-11-02	PUAL	Search report despatched	Free format text: ORIGINAL CODE: 0009013
1994-12-21	AK	Designated contracting states	Kind code of ref document: A3 Designated state(s): DE DK FR IT SE
1995-05-24	RAP3	Party data changed (applicant data changed or rights of an application transferred)	Owner name: DAVID BROWN HYDRAULICS LIMITED
1995-08-16	17P	Request for examination filed	Effective date: 19950620
1995-11-29	17Q	First examination report despatched	Effective date: 19951013
1996-07-24	GRAG	Despatch of communication of intention to grant	Free format text: ORIGINAL CODE: EPIDOS AGRA
1996-12-14	GRAH	Despatch of communication of intention to grant a patent	Free format text: ORIGINAL CODE: EPIDOS IGRA
1997-04-05	GRAH	Despatch of communication of intention to grant a patent	Free format text: ORIGINAL CODE: EPIDOS IGRA
1997-05-02	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
1997-06-18	AK	Designated contracting states	Kind code of ref document: B1 Designated state(s): DE DK FR IT SE
1997-06-18	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: IT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRE;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.SCRIBED TIME-LIMIT Effective date: 19970618 Ref country code: FR Effective date: 19970618 Ref country code: DK Effective date: 19970618
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1997-11-14	EN	Fr: translation not filed
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1998-06-10	26N	No opposition filed