GB968621A - Improved variable displacement axial piston pump - Google Patents

Improved variable displacement axial piston pump

Info

Publication number
GB968621A
GB968621A GB8781/62A GB878162A GB968621A GB 968621 A GB968621 A GB 968621A GB 8781/62 A GB8781/62 A GB 8781/62A GB 878162 A GB878162 A GB 878162A GB 968621 A GB968621 A GB 968621A
Authority
GB
United Kingdom
Prior art keywords
spill
output
cylinder block
block
inlet port
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
GB8781/62A
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.)
Weatherhead Co
Original Assignee
Weatherhead Co
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 Weatherhead Co filed Critical Weatherhead Co
Publication of GB968621A publication Critical patent/GB968621A/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
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/22—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves
    • F04B49/225—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves with throttling valves or valves varying the pump inlet opening or the outlet opening
    • 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
    • F04B1/14—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 stationary cylinders
    • F04B1/141—Details or component parts
    • F04B1/143—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
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/08—Regulating by delivery pressure
    • 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
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/12—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by varying the length of stroke of the working members

Landscapes

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

Abstract

968,621. Fluid-pressure servomotor systems. WEATHERHEAD CO. March 7, 1962 [April 25, 1961], No. 8781/62. Heading G3P. [Also in Division F1] In an axial piston pump of the type in which the output is regulated by axial adjustment of the cylinder block whereby spill through each piston controlled inlet port is varied from a maximum to zero, the cylinder block is further axially adjustable whereby the effective area of the inlet ports is controlled. From the position shown in Fig. 1 movement of the cylinder block 62 to the left by the manually actuated shaft 117 causes increased spill from the inlet ports 85 during the pressure stroke; movement of the block 62 to the right causes the face 86 of the inlet port 85 to approach and finally coincide with the bottom dead centre position of the heads 71 of the pistons whereby the port 85 is progressively and finally totally closed by the pistons. In a modification the block is moved to regulate the output by spill by a servodevice actuated by outlet pressure and manually to regulate the output by controlling the effective inlet port area. Specifications 952, 203 and 958, 973 are referred to.
GB8781/62A 1961-04-25 1962-03-07 Improved variable displacement axial piston pump Expired GB968621A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US105357A US3090313A (en) 1961-04-25 1961-04-25 Variable displacement pump

Publications (1)

Publication Number Publication Date
GB968621A true GB968621A (en) 1964-09-02

Family

ID=22305352

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8781/62A Expired GB968621A (en) 1961-04-25 1962-03-07 Improved variable displacement axial piston pump

Country Status (3)

Country Link
US (1) US3090313A (en)
DE (1) DE1453693A1 (en)
GB (1) GB968621A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3209701A (en) * 1962-10-05 1965-10-05 Sundstrand Corp Pump
US3246575A (en) * 1962-12-12 1966-04-19 Hydro Kinetics Inc Fluid motor
US4533301A (en) * 1983-04-13 1985-08-06 Foster Leslie W Pump
CN100485164C (en) * 2006-12-29 2009-05-06 郭有祥 Gyro wheel rotating engine
CN104533774A (en) * 2014-12-03 2015-04-22 安徽博一流体传动股份有限公司 Variable displacement piston pump for loading machine

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB402603A (en) * 1931-12-24 1933-12-07 Joseph Jean Bouteille Improvements in or relating to injection devices for internal combustion engines
US2041422A (en) * 1933-08-07 1936-05-19 L Orange Rudolf Fuel pump for internal combustion engines
US2369134A (en) * 1942-03-17 1945-02-13 Everett S Cameron Fuel injector system
US2990781A (en) * 1957-11-25 1961-07-04 Gen Motors Corp Wobble plate pump

Also Published As

Publication number Publication date
US3090313A (en) 1963-05-21
DE1453693A1 (en) 1969-08-28

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