GB1344623A - Variable displacement pumps and motors - Google Patents

Variable displacement pumps and motors

Info

Publication number
GB1344623A
GB1344623A GB1344623DA GB1344623A GB 1344623 A GB1344623 A GB 1344623A GB 1344623D A GB1344623D A GB 1344623DA GB 1344623 A GB1344623 A GB 1344623A
Authority
GB
United Kingdom
Prior art keywords
servomotor
piston
valve
valves
pump
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
Other languages
English (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.)
Dowty Technical Developments Ltd
Original Assignee
Dowty Technical Developments Ltd
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 Dowty Technical Developments Ltd filed Critical Dowty Technical Developments Ltd
Publication of GB1344623A publication Critical patent/GB1344623A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
    • F15B11/12—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor providing distinct intermediate positions; with step-by-step action
    • F15B11/121—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor providing distinct intermediate positions; with step-by-step action providing distinct intermediate positions
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Reciprocating Pumps (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Hydraulic Motors (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
GB1344623D 1970-05-09 1971-04-21 Variable displacement pumps and motors Expired GB1344623A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2249870 1970-05-09

Publications (1)

Publication Number Publication Date
GB1344623A true GB1344623A (en) 1974-01-23

Family

ID=10180373

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1344623D Expired GB1344623A (en) 1970-05-09 1971-04-21 Variable displacement pumps and motors

Country Status (3)

Country Link
JP (1) JPS5244041B1 (enExample)
DE (1) DE2123031A1 (enExample)
GB (1) GB1344623A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005012693A1 (en) * 2003-07-30 2005-02-10 Lincoln Industrial Corporation Controlled gas bleed system

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6273796U (enExample) * 1985-10-26 1987-05-12
DE3600787C1 (de) * 1986-01-14 1987-04-02 Danfoss As Steuergeraet fuer eine Pumpe mit einstellbarer Foerdermenge

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005012693A1 (en) * 2003-07-30 2005-02-10 Lincoln Industrial Corporation Controlled gas bleed system
US6901841B2 (en) 2003-07-30 2005-06-07 Lincoln Industrial Corporation Gas bleed system with improved control

Also Published As

Publication number Publication date
JPS5244041B1 (enExample) 1977-11-04
DE2123031A1 (de) 1972-10-26

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees