EP2980405A3 - Distribution device for a hydraulic machine - Google Patents

Distribution device for a hydraulic machine Download PDF

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Publication number
EP2980405A3
EP2980405A3 EP15178761.1A EP15178761A EP2980405A3 EP 2980405 A3 EP2980405 A3 EP 2980405A3 EP 15178761 A EP15178761 A EP 15178761A EP 2980405 A3 EP2980405 A3 EP 2980405A3
Authority
EP
European Patent Office
Prior art keywords
main
arrangements
open
axial end
distribution device
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
EP15178761.1A
Other languages
German (de)
French (fr)
Other versions
EP2980405B1 (en
EP2980405A2 (en
Inventor
Julien Viard
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.)
Poclain Hydraulics Industrie
Original Assignee
Poclain Hydraulics Industrie
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 Poclain Hydraulics Industrie filed Critical Poclain Hydraulics Industrie
Publication of EP2980405A2 publication Critical patent/EP2980405A2/en
Publication of EP2980405A3 publication Critical patent/EP2980405A3/en
Application granted granted Critical
Publication of EP2980405B1 publication Critical patent/EP2980405B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
    • F04B1/0404—Details or component parts
    • F04B1/0421—Cylinders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03C—POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
    • F03C1/00—Reciprocating-piston liquid engines
    • F03C1/02—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders
    • F03C1/04—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinders in star or fan arrangement
    • F03C1/0403—Details, component parts specially adapted of such engines
    • F03C1/0435—Particularities relating to the distribution members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03C—POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
    • F03C1/00—Reciprocating-piston liquid engines
    • F03C1/02—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders
    • F03C1/04—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinders in star or fan arrangement
    • F03C1/047—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinders in star or fan arrangement the pistons co-operating with an actuated element at the outer ends of the cylinders
    • 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
    • F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
    • F04B1/0404—Details or component parts
    • F04B1/0439—Supporting or guiding means for the pistons
    • 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
    • F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
    • F04B1/0404—Details or component parts
    • F04B1/0452—Distribution members, e.g. valves
    • 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
    • F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
    • F04B1/047—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement with actuating or actuated elements at the outer ends of the cylinders
    • 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
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections

Abstract

Le dispositif comprend une partie de carter (10A) qui a une extrémité axiale ouverte (11A) et qui présente deux perçages principaux (27, 29) respectivement pour l'alimentation et pour l'échappement. Ces perçages débouchent dans une face axiale interne (11B) de la partie de carter (10A), respectivement par un premier et un deuxième orifice principaux (27A, 29A) qui sont disposés successivement dans le sens allant en s'éloignant de l'extrémité ouverte. La face axiale interne présente trois agencements de portée interne d'étanchéité (30, 32, 34) respectivement situés entre l'extrémité axiale ouverte et le premier orifice principal, entre les deux orifices principaux et au-delà du deuxième orifice principal. Au moins deux des trois agencements sont des agencements internes étagés, comprenant deux surfaces de portée axiale (30A, 30B ; 32A, 32B) étagées l'une par rapport à l'autre, séparées par un épaulement (30C, 32C) tourné vers l'extrémité axiale ouverte.

Figure imgaf001
Figure imgaf002
The device comprises a housing portion (10A) which has an open axial end (11A) and which has two main bores (27, 29) respectively for the supply and for the exhaust. These holes open into an inner axial face (11B) of the housing part (10A), respectively by a first and a second main orifice (27A, 29A) which are arranged successively in the direction going away from the end opened. The inner axial face has three internal sealing surface arrangements (30, 32, 34) respectively located between the open axial end and the first main port, between the two main ports and beyond the second main port. At least two of the three arrangements are staggered internal arrangements, including two axial bearing surfaces (30A, 30B; 32A, 32B) stepped relative to one another, separated by a shoulder (30C, 32C) facing open axial end.
Figure imgaf001
Figure imgaf002
EP15178761.1A 2014-07-31 2015-07-29 Distribution device for a hydraulic machine Active EP2980405B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1457456A FR3024503B1 (en) 2014-07-31 2014-07-31 DISTRIBUTION CASE DEVICE FOR A HYDRAULIC MACHINE

Publications (3)

Publication Number Publication Date
EP2980405A2 EP2980405A2 (en) 2016-02-03
EP2980405A3 true EP2980405A3 (en) 2016-03-23
EP2980405B1 EP2980405B1 (en) 2019-05-22

Family

ID=51570729

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15178761.1A Active EP2980405B1 (en) 2014-07-31 2015-07-29 Distribution device for a hydraulic machine

Country Status (4)

Country Link
US (1) US10443582B2 (en)
EP (1) EP2980405B1 (en)
CN (1) CN105317624B (en)
FR (1) FR3024503B1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3043433B1 (en) * 2015-11-10 2017-12-08 Poclain Hydraulics Ind DISPENSING DEVICE FOR A HYDRAULIC MACHINE AND HYDRAULIC MACHINE EQUIPPED WITH SUCH A DEVICE
FR3052193B1 (en) * 2016-06-01 2018-06-22 Poclain Hydraulics Industrie SELECTION SYSTEM INCLUDING IMPROVED AXIAL LOCK
WO2018090159A1 (en) * 2016-11-18 2018-05-24 秦皇岛正时乐液压设备有限公司 Internally curved low-speed high-torque hydraulic motor with torque being output by means of rotation of housing
FR3080576B1 (en) * 2018-04-25 2022-05-13 Poclain Hydraulics Ind HYDRAULIC ARRANGEMENT FOR A STEERING WHEEL OF A VEHICLE
FR3135305A1 (en) 2022-05-06 2023-11-10 Poclain Hydraulics Industrie Hydraulic machine equipped with a direction change drawer

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2606092A1 (en) * 1986-10-31 1988-05-06 Rexroth Mannesmann Gmbh PISTON MACHINE WITH SWITCHABLE CYLINDREE
FR2678322A1 (en) * 1991-06-25 1992-12-31 Poclain Hydraulics Sa PRESSURE FLUID MECHANISM COMPRISING AT LEAST TWO SEPARATE OPERATING CYLINDERS.
FR2764947A1 (en) * 1997-06-23 1998-12-24 Poclain Hydraulics Sa HYDRAULIC MOTOR
US6443047B1 (en) * 1998-07-21 2002-09-03 Bosch Rexroth Ag Radial piston engine with roller guides
US6494126B1 (en) * 1997-11-11 2002-12-17 Valmet Hydraulics Oy Radial piston hydraulic motor
FR2951798A1 (en) * 2009-10-22 2011-04-29 Poclain Hydraulics Ind HYDROSTATIC TRANSMISSION DEVICE FOR ENHANCED BRAKING
WO2013160145A2 (en) * 2012-04-28 2013-10-31 Robert Bosch Gmbh Radial piston engine with brake

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101990797A (en) * 2010-09-01 2011-03-30 中国一拖集团有限公司 Combined hydraulic fluid distributor for tractor

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2606092A1 (en) * 1986-10-31 1988-05-06 Rexroth Mannesmann Gmbh PISTON MACHINE WITH SWITCHABLE CYLINDREE
FR2678322A1 (en) * 1991-06-25 1992-12-31 Poclain Hydraulics Sa PRESSURE FLUID MECHANISM COMPRISING AT LEAST TWO SEPARATE OPERATING CYLINDERS.
FR2764947A1 (en) * 1997-06-23 1998-12-24 Poclain Hydraulics Sa HYDRAULIC MOTOR
US6494126B1 (en) * 1997-11-11 2002-12-17 Valmet Hydraulics Oy Radial piston hydraulic motor
US6443047B1 (en) * 1998-07-21 2002-09-03 Bosch Rexroth Ag Radial piston engine with roller guides
FR2951798A1 (en) * 2009-10-22 2011-04-29 Poclain Hydraulics Ind HYDROSTATIC TRANSMISSION DEVICE FOR ENHANCED BRAKING
WO2013160145A2 (en) * 2012-04-28 2013-10-31 Robert Bosch Gmbh Radial piston engine with brake

Also Published As

Publication number Publication date
EP2980405B1 (en) 2019-05-22
FR3024503A1 (en) 2016-02-05
US10443582B2 (en) 2019-10-15
CN105317624A (en) 2016-02-10
EP2980405A2 (en) 2016-02-03
US20160032908A1 (en) 2016-02-04
FR3024503B1 (en) 2019-06-21
CN105317624B (en) 2020-03-10

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