FR2296087A1 - Hydraulic motor or pump with radial pistons - has offset spherical cam to reduce wear on piston shoes - Google Patents

Hydraulic motor or pump with radial pistons - has offset spherical cam to reduce wear on piston shoes

Info

Publication number
FR2296087A1
FR2296087A1 FR7442504A FR7442504A FR2296087A1 FR 2296087 A1 FR2296087 A1 FR 2296087A1 FR 7442504 A FR7442504 A FR 7442504A FR 7442504 A FR7442504 A FR 7442504A FR 2296087 A1 FR2296087 A1 FR 2296087A1
Authority
FR
France
Prior art keywords
cam
pump
hydraulic motor
spherical cam
reduce wear
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
FR7442504A
Other languages
French (fr)
Other versions
FR2296087B1 (en
Inventor
Serge Baptiste Bacquie
Daniel Marie Hue
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 SA
Original Assignee
Poclain SA
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 SA filed Critical Poclain SA
Priority to FR7442504A priority Critical patent/FR2296087A1/en
Priority to JP50152936A priority patent/JPS5189201A/ja
Publication of FR2296087A1 publication Critical patent/FR2296087A1/en
Application granted granted Critical
Publication of FR2296087B1 publication Critical patent/FR2296087B1/fr
Granted 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
    • F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
    • F04B1/06—Control
    • F04B1/063—Control by using a valve in a system with several pumping chambers wherein the flow-path through the chambers can be changed, e.g. between series and parallel flow
    • 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
    • F04B1/03—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders with cylinder axis arranged substantially tangentially to a circle centred on main shaft axis
    • 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
    • F04B1/0408—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
    • F04B1/0413—Cams
    • 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
    • F04B1/053—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 inner ends of the cylinders
    • F04B1/0535—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 inner ends of the cylinders the piston-driving cams being provided with inlets and outlets
    • 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
    • F04B1/06—Control

Landscapes

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

Abstract

The hydraulic pump or motor (1) has a shaft (25) running in bearings (26) and is provided with a spherical cam (6) the centre (8) of which is offset from the shaft axis (4). The machine (1) is provided with a number of pistons (5) arranged radially around the shaft (4) and with the plane of the centre lines of the pistons (5) displaced axially by a distance (d) from the central plane (21) of the spherical cam (6). As the cam rotates the point (22) moves faster than the point (23) causing the shoe (9) to rotate. This motion spreads the wear over the entire surface of the shoe (9) and results in longer life of the cam (6) the shoe (9) and piston (5).
FR7442504A 1974-12-23 1974-12-23 Hydraulic motor or pump with radial pistons - has offset spherical cam to reduce wear on piston shoes Granted FR2296087A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR7442504A FR2296087A1 (en) 1974-12-23 1974-12-23 Hydraulic motor or pump with radial pistons - has offset spherical cam to reduce wear on piston shoes
JP50152936A JPS5189201A (en) 1974-12-23 1975-12-23

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7442504A FR2296087A1 (en) 1974-12-23 1974-12-23 Hydraulic motor or pump with radial pistons - has offset spherical cam to reduce wear on piston shoes

Publications (2)

Publication Number Publication Date
FR2296087A1 true FR2296087A1 (en) 1976-07-23
FR2296087B1 FR2296087B1 (en) 1977-11-10

Family

ID=9146519

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7442504A Granted FR2296087A1 (en) 1974-12-23 1974-12-23 Hydraulic motor or pump with radial pistons - has offset spherical cam to reduce wear on piston shoes

Country Status (2)

Country Link
JP (1) JPS5189201A (en)
FR (1) FR2296087A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102606382A (en) * 2011-06-16 2012-07-25 兰州理工大学 Offset type radial plunger motor of five-star single-action piston cylinder

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103758720B (en) * 2013-10-18 2015-11-25 西安交通大学 The axial-flow type radial plunger hydraulic pump that oil joined by oil-piping layout is joined in a kind of employing
CN110630464B (en) * 2019-09-27 2021-06-22 江苏军源装备制造有限公司 Variable-displacement high-pressure pump

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1540999A (en) * 1967-07-24 1968-10-04 Rotary piston machine or the like operating as a compressed fluid motor or the like and its various applications
DE1286519B (en) * 1964-12-30 1969-01-09 Hanns Dieter Dipl Ing Rotary piston machine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1286519B (en) * 1964-12-30 1969-01-09 Hanns Dieter Dipl Ing Rotary piston machine
FR1540999A (en) * 1967-07-24 1968-10-04 Rotary piston machine or the like operating as a compressed fluid motor or the like and its various applications

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102606382A (en) * 2011-06-16 2012-07-25 兰州理工大学 Offset type radial plunger motor of five-star single-action piston cylinder
CN102606382B (en) * 2011-06-16 2014-09-17 兰州理工大学 Offset type radial plunger motor of five-star single-action piston cylinder

Also Published As

Publication number Publication date
FR2296087B1 (en) 1977-11-10
JPS5189201A (en) 1976-08-04

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Legal Events

Date Code Title Description
CD Change of name or company name
TP Transmission of property
TP Transmission of property
TP Transmission of property
CD Change of name or company name
ST Notification of lapse