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GB1366786A - Axial piston rotary pump - Google Patents

Axial piston rotary pump

Info

Publication number
GB1366786A
GB1366786A GB5061172A GB5061172A GB1366786A GB 1366786 A GB1366786 A GB 1366786A GB 5061172 A GB5061172 A GB 5061172A GB 5061172 A GB5061172 A GB 5061172A GB 1366786 A GB1366786 A GB 1366786A
Authority
GB
United Kingdom
Prior art keywords
members
cylinder
cylinders
assembly
stroke
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.)
Expired
Application number
GB5061172A
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.)
Universite de Sherbrooke
Original Assignee
Universite de Sherbrooke
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 Universite de Sherbrooke filed Critical Universite de Sherbrooke
Publication of GB1366786A publication Critical patent/GB1366786A/en
Expired 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
    • F04B1/122—Details or component parts, e.g. valves, sealings or lubrication means
    • F04B1/124—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
    • F04B1/12—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
    • F04B1/2035—Cylinder barrels
    • 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
    • F04B1/22—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 having two or more sets of cylinders or pistons
    • F04B1/24—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 having two or more sets of cylinders or pistons inclined to the 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
    • F04B1/12—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
    • F04B1/32—Control of machines or pumps with rotary cylinder blocks by varying the relative positions of a swash plate and a cylinder block
    • F04B1/328—Control of machines or pumps with rotary cylinder blocks by varying the relative positions of a swash plate and a cylinder block by changing the inclination of the axis of the cylinder barrel relative to the swash plate

Landscapes

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

Abstract

1366786 Reciprocating pumps UNIVERSITE DE SHERBROOKE 2 Nov 1972 [15 May 1972] 50611/72 Heading F1A A pump, e.g. for analytical use, comprises at least two pumping cells each comprising a hollow piston 31, e.g. of P.T.F.E. tubing, either U-shaped, as shown, or straight, Fig. 1 (not shown) each end of the piston being reciprocable in a respective cylinder 33, 34, and members 40, 41 carrying the cylinders and the pistons, as shown, or both formed with cylinders, Fig. 1 (not shown) being rotated in unison about respective inclined axes to cause relative reciprocation of the pistons and cylinders, valve means being provided to open one cylinder to inlet during the suction stroke and the other cylinder to outlet during the discharge stroke. As shown, the valve means comprise kidney ports 51, 52 in a stationary valve plate. In Figs. 4 and 5 (not shown) members 40 and 41 both have valve plates, cylinders and a plurality of U-shaped pistons. The angle between members 40 and 41 is adjustable to vary the displacement. Members 40 and 41 may each comprise two parts, a cylinder block and a guide member, connected together for rotation. In Fig. 5 (not shown) the valve plates are biased against the cylinder members by air-pressure, sealing between the plates and members being effected by O-rings, a gasket or by highly polishing the contact surfaces. In Fig. 6 (not shown) two pump assemblies (320), (321) are arranged side-by-side in a frame with a screw arrangement (381) for simultaneously reducing the stroke of one assembly and increasing the stroke of the other. The two cylinder members of each pump assembly are connected to rotate together by tension springs (301), one member of one assembly being driven by a motor (360), and a chain (375) transmitting drive to the corresponding member of the other assembly.
GB5061172A 1972-05-15 1972-11-02 Axial piston rotary pump Expired GB1366786A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA142,187A CA962524A (en) 1972-05-15 1972-05-15 Axial piston rotary apparatus

Publications (1)

Publication Number Publication Date
GB1366786A true GB1366786A (en) 1974-09-11

Family

ID=4093274

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5061172A Expired GB1366786A (en) 1972-05-15 1972-11-02 Axial piston rotary pump

Country Status (7)

Country Link
US (1) US3795179A (en)
CA (1) CA962524A (en)
DE (1) DE2253252C2 (en)
FR (1) FR2185237A5 (en)
GB (1) GB1366786A (en)
IT (1) IT986319B (en)
NL (1) NL156791B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3318942C2 (en) * 1983-05-25 1994-10-20 Eckhardt Hans Guenter Dipl Ing Displacement machine for converting linear forces and linear movements into torques and rotating movements or vice versa
US6152014A (en) * 1989-03-17 2000-11-28 Willimczik; Wolfhart Rotary piston machines
US7029241B2 (en) * 2002-04-26 2006-04-18 Patrick Wade Rousset Circumferential piston compressor/pump/engine (CPC/CPP/CPE); circumferential piston machines
ITGE20020065A1 (en) * 2002-07-18 2004-01-19 Riviera Srl PUMP STRUCTURE, PARTICULARLY FOR HYDRAULIC TIMONERIE
US6945041B2 (en) * 2003-06-27 2005-09-20 Sauer-Danfoss, Inc. Bent axis hydrostatic module with multiple yokes
US6996980B2 (en) * 2003-06-27 2006-02-14 Sauer-Danfoss Inc. Bent axis hydrostatic unit with multiple yokes
EP4375505A1 (en) * 2022-11-28 2024-05-29 Danfoss A/S Control plate of a hydraulic machine and hydraulic machine

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE559485C (en) * 1929-06-26 1932-09-20 Andre Paul Guinard Circulation pump
US1996889A (en) * 1933-02-11 1935-04-09 Frank R Thomas Fluid machine
US2081270A (en) * 1935-05-02 1937-05-25 Edmundson John George Rotary engine
US2364301A (en) * 1941-07-16 1944-12-05 Bendix Aviat Corp Hydraulic apparatus
US2813493A (en) * 1955-11-25 1957-11-19 Thompson Prod Inc Pivoted valve plate for a pump assembly
US2914219A (en) * 1956-04-12 1959-11-24 Chiantelassa Attilio Apparatus for dispensing a mixture of two liquids in any continuously variable ratio
FR1482836A (en) * 1965-10-20 1967-06-02 Pressurized fluid rotary machine
US3434429A (en) * 1967-03-14 1969-03-25 Us Army Free piston and cylinder assembly for hydraulic pumps and motors

Also Published As

Publication number Publication date
FR2185237A5 (en) 1973-12-28
NL7215172A (en) 1973-11-19
DE2253252C2 (en) 1983-02-03
DE2253252A1 (en) 1973-11-29
IT986319B (en) 1975-01-30
NL156791B (en) 1978-05-16
CA962524A (en) 1975-02-11
US3795179A (en) 1974-03-05

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee