EP0935069A3 - Hydrostatic axial piston machine with opening for medium pressure in the control plate - Google Patents

Hydrostatic axial piston machine with opening for medium pressure in the control plate Download PDF

Info

Publication number
EP0935069A3
EP0935069A3 EP99101492A EP99101492A EP0935069A3 EP 0935069 A3 EP0935069 A3 EP 0935069A3 EP 99101492 A EP99101492 A EP 99101492A EP 99101492 A EP99101492 A EP 99101492A EP 0935069 A3 EP0935069 A3 EP 0935069A3
Authority
EP
European Patent Office
Prior art keywords
opening
medium pressure
pressure opening
piston machine
axial piston
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
EP99101492A
Other languages
German (de)
French (fr)
Other versions
EP0935069A2 (en
EP0935069B1 (en
Inventor
Ralf Dr. Lemmen
Joachim Schmitt
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.)
Brueninghaus Hydromatik GmbH
Original Assignee
Brueninghaus Hydromatik 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 Brueninghaus Hydromatik GmbH filed Critical Brueninghaus Hydromatik GmbH
Publication of EP0935069A2 publication Critical patent/EP0935069A2/en
Publication of EP0935069A3 publication Critical patent/EP0935069A3/en
Application granted granted Critical
Publication of EP0935069B1 publication Critical patent/EP0935069B1/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
    • 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
    • F04B1/2042—Valves

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • Hydraulic Motors (AREA)

Abstract

Eine Axialkolbenmaschine (1) weist eine Zylindertrommel (3) auf, in welcher Zylinderbohrungen (4) zur Aufnahme von Kolben (5) vorgesehen sind. Die Zylinderbohrungen (4) stehen über Zylinderöffnungen (15) mit einer Steuerscheibe (8) in Verbindung. In der Steuerscheibe (8) sind eine Niederdrucköffnung (19), eine Hochdrucköffnung (18) und eine Mitteldrucköffnung (23) vorgesehen. Die Mitteldrucköffnung (23) ist in Drehrichtung (38) der Zylindertrommel (3) in bezug auf die Steuerscheibe (8) zwischen einer ersten Totpunktlage (21), an welcher sich die axiale Bewegungsrichtung der Kolben (5) umkehrt, und der Hochdrucköffnung (18) angeordnet. Ferner ist eine Regeleinrichtung (24, 32) vorgesehen, die den Druck an der Mitteldrucköffnung (23) auf einen vorgegebenen Mitteldruck (MD) zwischen dem an der Niederdrucköffnung (19) herrschenden Niederdruck (ND) und dem an der Hochdrucköffnung (18) herrschenden Hochdruck (HD) einregelt.

Figure 00000001
An axial piston machine (1) has a cylinder drum (3) in which cylinder bores (4) are provided for receiving pistons (5). The cylinder bores (4) are connected to a control disc (8) via cylinder openings (15). A low pressure opening (19), a high pressure opening (18) and a medium pressure opening (23) are provided in the control disc (8). The medium pressure opening (23) is in the direction of rotation (38) of the cylinder drum (3) with respect to the control disc (8) between a first dead center position (21), at which the axial direction of movement of the pistons (5) is reversed, and the high pressure opening (18 ) arranged. Furthermore, a control device (24, 32) is provided which regulates the pressure at the medium pressure opening (23) to a predetermined medium pressure (MD) between the low pressure (LP) prevailing at the low pressure opening (19) and the high pressure prevailing at the high pressure opening (18) (HD) settles.
Figure 00000001
EP99101492A 1998-02-04 1999-01-27 Hydrostatic axial piston machine with opening for medium pressure in the control plate Expired - Lifetime EP0935069B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19804374A DE19804374B4 (en) 1998-02-04 1998-02-04 Axial piston machine with medium pressure opening
DE19804374 1998-02-04

Publications (3)

Publication Number Publication Date
EP0935069A2 EP0935069A2 (en) 1999-08-11
EP0935069A3 true EP0935069A3 (en) 2000-05-17
EP0935069B1 EP0935069B1 (en) 2004-08-04

Family

ID=7856618

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99101492A Expired - Lifetime EP0935069B1 (en) 1998-02-04 1999-01-27 Hydrostatic axial piston machine with opening for medium pressure in the control plate

Country Status (2)

Country Link
EP (1) EP0935069B1 (en)
DE (2) DE19804374B4 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10034857A1 (en) * 2000-07-18 2002-01-31 Liebherr Machines Bulle S A Hydrostatic axial piston machine
FR2834011B1 (en) * 2001-12-24 2004-03-19 Poclain Hydraulics Ind RADIAL PISTON HYDRAULIC MOTOR
FR2834012B1 (en) * 2001-12-24 2004-03-19 Poclain Hydraulics Ind RADIAL PISTON HYDRAULIC MOTOR
WO2013068211A1 (en) * 2011-11-12 2013-05-16 Robert Bosch Gmbh Hydrostatic piston engine
JP6110074B2 (en) * 2012-03-30 2017-04-05 三菱重工業株式会社 Fluid pressure pump
FR3000770B1 (en) * 2013-01-08 2015-03-20 Technoboost HYDRAULIC MACHINE WITH TWO DIRECTION OF ROTATION, COMPRISING A PRE-COMPRESSION CHAMBER
CN106593852B (en) * 2017-01-20 2018-08-28 太原理工大学 A kind of three hydraulic fluid port Properties of Port Plate in Axial Piston Pump structures

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2963983A (en) * 1956-10-01 1960-12-13 Reiners Walter Device for reducing noise in multicylinder piston machines
DE1228929B (en) * 1961-09-11 1966-11-17 Citroen Sa Device for noise reduction in pressurized fluid axial piston machines
US3362342A (en) * 1964-06-12 1968-01-09 Dowty Technical Dev Ltd Hydraulic apparatus
US3956969A (en) * 1974-12-09 1976-05-18 Caterpillar Tractor Co. Hydrostatic pump including separate noise reducing valve assemblies for its inlet and outlet pressure ports
JPS6085267A (en) * 1983-09-05 1985-05-14 Daikin Ind Ltd Axial-piston machine
JPS62135674A (en) * 1985-12-09 1987-06-18 Hitachi Constr Mach Co Ltd Hydraulic pump and motor device
US5285641A (en) * 1990-11-10 1994-02-15 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Flow dividing pump

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2057891A1 (en) * 1970-09-02 1972-03-09 Orrsta Hydraulik Veb K Device for noise reduction in a slot-controlled hydrostatic piston pump
DE2333380C2 (en) * 1973-06-30 1982-04-08 Eckhard 7120 Bietigheim Aschke Hydraulic machine
SE507637C2 (en) * 1991-09-06 1998-06-29 Parker Hannifin Ab Method and apparatus for damping flow pulsations in hydrostatic displacement hydraulic machines and apparatus for carrying out the method
JPH0685267A (en) * 1992-09-04 1994-03-25 Sanyo Electric Co Ltd Manufacture of power mosfet
JPH08284805A (en) * 1995-04-17 1996-10-29 Hitachi Constr Mach Co Ltd Axial piston type hydraulic rotary machine

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2963983A (en) * 1956-10-01 1960-12-13 Reiners Walter Device for reducing noise in multicylinder piston machines
DE1228929B (en) * 1961-09-11 1966-11-17 Citroen Sa Device for noise reduction in pressurized fluid axial piston machines
US3362342A (en) * 1964-06-12 1968-01-09 Dowty Technical Dev Ltd Hydraulic apparatus
US3956969A (en) * 1974-12-09 1976-05-18 Caterpillar Tractor Co. Hydrostatic pump including separate noise reducing valve assemblies for its inlet and outlet pressure ports
JPS6085267A (en) * 1983-09-05 1985-05-14 Daikin Ind Ltd Axial-piston machine
JPS62135674A (en) * 1985-12-09 1987-06-18 Hitachi Constr Mach Co Ltd Hydraulic pump and motor device
US5285641A (en) * 1990-11-10 1994-02-15 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Flow dividing pump

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 009, no. 229 (M - 413) 14 September 1985 (1985-09-14) *
PATENT ABSTRACTS OF JAPAN vol. 011, no. 356 (M - 644) 20 November 1987 (1987-11-20) *

Also Published As

Publication number Publication date
DE59910088D1 (en) 2004-09-09
DE19804374B4 (en) 2004-09-30
DE19804374A1 (en) 1999-08-12
EP0935069A2 (en) 1999-08-11
EP0935069B1 (en) 2004-08-04

Similar Documents

Publication Publication Date Title
EP1013928A3 (en) Swash plate axial piston pump with pulsation damping means
DE3423467C2 (en) Hydraulic swash plate axial piston machine
DE112006003645T5 (en) Pump / motor of variable-axis oblique-axis type
DE4229544A1 (en) METHOD AND DEVICE FOR DAMPING FLOW PULSATIONS IN HYDROSTATIC HYDRAULIC MACHINES OF THE DISPLACEMENT TYPE
DE69501855T2 (en) Axial piston pump
EP0816675A3 (en) Arrangement for stabilizing the eccentric ring of a radial piston pump
WO2012065682A1 (en) Hydraulic piston engine
EP0935069A3 (en) Hydrostatic axial piston machine with opening for medium pressure in the control plate
EP1174617A3 (en) Hydrostatic axial piston machine
DE2644033A1 (en) IMPROVED ARTICULATED AXLE PUMPS AND MOTORS
DE4310062A1 (en) Radial piston machine
DE102004010373A1 (en) axial piston
EP0922858A3 (en) Hydrostatic machine with rotary cylinder block and adjustable swash plate
EP0870865A3 (en) Shoe press
EP0355389A3 (en) Deflexion controlled roll
GB1235696A (en) Reciprocating hydraulic pumps and motors of the axial type
EP0953767A3 (en) Hydrostatic machine
EP1700034B1 (en) Axial piston machine for independent delivery into several hydraulic circuits
EP1041279A3 (en) Valve plate for axial piston machine
DE2238582A1 (en) AXIAL PISTON MACHINE
EP0837241A3 (en) Axial piston pump with adjustable control plate
EP1013927A3 (en) Hydrostatic piston machine
DE3904782A1 (en) AXIAL PISTON MACHINE
EP1039127A3 (en) Axial piston machine
EP1008749A3 (en) Axial piston machine

Legal Events

Date Code Title Description
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

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE FR GB IT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 20000614

AKX Designation fees paid

Free format text: DE FR GB IT SE

17Q First examination report despatched

Effective date: 20030214

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB IT SE

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REF Corresponds to:

Ref document number: 59910088

Country of ref document: DE

Date of ref document: 20040909

Kind code of ref document: P

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20040903

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20050506

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20090123

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20090126

Year of fee payment: 11

Ref country code: IT

Payment date: 20090126

Year of fee payment: 11

Ref country code: DE

Payment date: 20090327

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20090120

Year of fee payment: 11

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20100127

EUG Se: european patent has lapsed
REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20100930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100201

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100803

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100127

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 NON-PAYMENT OF DUE FEES

Effective date: 20100127

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100128