FR2420669A1 - Swash plate pump with rotatable valve plate - has pair of pistons to maintain plate in correct angular position - Google Patents

Swash plate pump with rotatable valve plate - has pair of pistons to maintain plate in correct angular position

Info

Publication number
FR2420669A1
FR2420669A1 FR7808147A FR7808147A FR2420669A1 FR 2420669 A1 FR2420669 A1 FR 2420669A1 FR 7808147 A FR7808147 A FR 7808147A FR 7808147 A FR7808147 A FR 7808147A FR 2420669 A1 FR2420669 A1 FR 2420669A1
Authority
FR
France
Prior art keywords
plate
pump
angular position
pistons
correct angular
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
FR7808147A
Other languages
French (fr)
Other versions
FR2420669B1 (en
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.)
Automobiles Citroen SA
Original Assignee
Automobiles Citroen 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 Automobiles Citroen SA filed Critical Automobiles Citroen SA
Priority to FR7808147A priority Critical patent/FR2420669A1/en
Publication of FR2420669A1 publication Critical patent/FR2420669A1/en
Application granted granted Critical
Publication of FR2420669B1 publication Critical patent/FR2420669B1/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
    • F04B1/12—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
    • 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
    • F04B1/26—Control
    • F04B1/30—Control of machines or pumps with rotary cylinder blocks
    • F04B1/303—Control of machines or pumps with rotary cylinder blocks by turning the valve plate
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H39/00—Rotary fluid gearing using pumps and motors of the volumetric type, i.e. passing a predetermined volume of fluid per revolution
    • F16H39/04—Rotary fluid gearing using pumps and motors of the volumetric type, i.e. passing a predetermined volume of fluid per revolution with liquid motor and pump combined in one unit
    • F16H39/06—Rotary fluid gearing using pumps and motors of the volumetric type, i.e. passing a predetermined volume of fluid per revolution with liquid motor and pump combined in one unit pump and motor being of the same type
    • F16H39/08—Rotary fluid gearing using pumps and motors of the volumetric type, i.e. passing a predetermined volume of fluid per revolution with liquid motor and pump combined in one unit pump and motor being of the same type each with one main shaft and provided with pistons reciprocating in cylinders
    • F16H39/10—Rotary fluid gearing using pumps and motors of the volumetric type, i.e. passing a predetermined volume of fluid per revolution with liquid motor and pump combined in one unit pump and motor being of the same type each with one main shaft and provided with pistons reciprocating in cylinders with cylinders arranged around, and parallel or approximately parallel to the main axis of the gearing
    • F16H39/14—Rotary fluid gearing using pumps and motors of the volumetric type, i.e. passing a predetermined volume of fluid per revolution with liquid motor and pump combined in one unit pump and motor being of the same type each with one main shaft and provided with pistons reciprocating in cylinders with cylinders arranged around, and parallel or approximately parallel to the main axis of the gearing with cylinders carried in rotary cylinder blocks or cylinder-bearing members

Landscapes

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

Abstract

The valve port plate (6) of a swashplate pump has a flat surface which abuts against the end face of the cylinder barrel and a convex spherical surface which abuts against the end wall of the pump housing. The fluid pressure forces exerted on the port plate tend to make it rotate. This rotation is prevented by two small pistons (24a, 24b) which act on a clamp (16) bolted to the valve plate (6). One piston is exposed to pump inlet pressure and the other to the delivery pressure so that their resultant force, together with the spring (32) maintains the valve plate (6) in its correct angular position.
FR7808147A 1978-03-21 1978-03-21 Swash plate pump with rotatable valve plate - has pair of pistons to maintain plate in correct angular position Granted FR2420669A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7808147A FR2420669A1 (en) 1978-03-21 1978-03-21 Swash plate pump with rotatable valve plate - has pair of pistons to maintain plate in correct angular position

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7808147A FR2420669A1 (en) 1978-03-21 1978-03-21 Swash plate pump with rotatable valve plate - has pair of pistons to maintain plate in correct angular position

Publications (2)

Publication Number Publication Date
FR2420669A1 true FR2420669A1 (en) 1979-10-19
FR2420669B1 FR2420669B1 (en) 1981-09-11

Family

ID=9206081

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7808147A Granted FR2420669A1 (en) 1978-03-21 1978-03-21 Swash plate pump with rotatable valve plate - has pair of pistons to maintain plate in correct angular position

Country Status (1)

Country Link
FR (1) FR2420669A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4800800A (en) * 1986-08-20 1989-01-31 Vickers, Incorporated Fluid pressure translating device
EP0632187A1 (en) * 1993-06-30 1995-01-04 Brueninghaus Hydromatik Gmbh Valve plate of an axial piston machine with at least a spherical surface

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE593597C (en) * 1931-01-28 1934-09-10 Viktor Jereczek Liquid pump
US2546583A (en) * 1945-02-10 1951-03-27 Denison Eng Co Hydraulic apparatus
US2642809A (en) * 1946-02-15 1953-06-23 Denison Eng Co Hydraulic apparatus
FR1273908A (en) * 1960-09-03 1961-10-20 Citroen Sa Andre Improvements to generators and hydraulic motors
US3190232A (en) * 1963-02-11 1965-06-22 Budzich Tadeusz Hydraulic apparatus
US3202105A (en) * 1959-01-14 1965-08-24 Sperry Rand Corp Power transmission
FR2087246A5 (en) * 1970-05-12 1971-12-31 Poclain Sa
US3657970A (en) * 1969-06-09 1972-04-25 Toyoda Chuo Kenkyusho Kk Hydraulic pump or motor having a rotary cylinder barrel
DE1776211A1 (en) * 1961-01-16 1972-04-27 Karl Eickmann Rotary piston machine
FR2297363A1 (en) * 1975-01-13 1976-08-06 Citroen Sa Transmission for vehicle with transversely mounted engine - uses hydraulic pump and motor and gearing to provide ratios

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE593597C (en) * 1931-01-28 1934-09-10 Viktor Jereczek Liquid pump
US2546583A (en) * 1945-02-10 1951-03-27 Denison Eng Co Hydraulic apparatus
US2642809A (en) * 1946-02-15 1953-06-23 Denison Eng Co Hydraulic apparatus
US3202105A (en) * 1959-01-14 1965-08-24 Sperry Rand Corp Power transmission
FR1273908A (en) * 1960-09-03 1961-10-20 Citroen Sa Andre Improvements to generators and hydraulic motors
DE1776211A1 (en) * 1961-01-16 1972-04-27 Karl Eickmann Rotary piston machine
US3190232A (en) * 1963-02-11 1965-06-22 Budzich Tadeusz Hydraulic apparatus
US3657970A (en) * 1969-06-09 1972-04-25 Toyoda Chuo Kenkyusho Kk Hydraulic pump or motor having a rotary cylinder barrel
FR2087246A5 (en) * 1970-05-12 1971-12-31 Poclain Sa
FR2297363A1 (en) * 1975-01-13 1976-08-06 Citroen Sa Transmission for vehicle with transversely mounted engine - uses hydraulic pump and motor and gearing to provide ratios

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4800800A (en) * 1986-08-20 1989-01-31 Vickers, Incorporated Fluid pressure translating device
EP0632187A1 (en) * 1993-06-30 1995-01-04 Brueninghaus Hydromatik Gmbh Valve plate of an axial piston machine with at least a spherical surface

Also Published As

Publication number Publication date
FR2420669B1 (en) 1981-09-11

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Legal Events

Date Code Title Description
ST Notification of lapse