GB698281A - Improvements in or relating to hydraulic servo motors - Google Patents

Improvements in or relating to hydraulic servo motors

Info

Publication number
GB698281A
GB698281A GB5746/51A GB574651A GB698281A GB 698281 A GB698281 A GB 698281A GB 5746/51 A GB5746/51 A GB 5746/51A GB 574651 A GB574651 A GB 574651A GB 698281 A GB698281 A GB 698281A
Authority
GB
United Kingdom
Prior art keywords
valve
pump
servomotor
delivery
march
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
GB5746/51A
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.)
HM Hobson Ltd
Original Assignee
HM Hobson 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 HM Hobson Ltd filed Critical HM Hobson Ltd
Priority to GB5746/51A priority Critical patent/GB698281A/en
Priority to GB8830/52A priority patent/GB704829A/en
Publication of GB698281A publication Critical patent/GB698281A/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
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
    • F04C14/24—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves
    • F04C14/26—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves using bypass channels
    • 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
    • F04B1/0439—Supporting or guiding means for the 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
    • 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
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/01—Control of temperature without auxiliary power
    • G05D23/12—Control of temperature without auxiliary power with sensing element responsive to pressure or volume changes in a confined fluid

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Prostheses (AREA)
  • Actuator (AREA)
  • Hydraulic Motors (AREA)
  • Reciprocating Pumps (AREA)
  • Control Of Fluid Gearings (AREA)

Abstract

698,281. Fluid-pressure servomotor-control systems; hydraulic machines. HOBSON, Ltd., H. M., and GREENLAND, L. S. March 4, 1952 [March 9, 1951] No. 5746/51. Classes 69(ii) and 135 The effective delivery of a hydraulic pump 18 supplying liquid past a pressurizing valve 22 is varied by a servomotor 11 into both ends of which liquid is delivered by the pump through a branch line 20 upstream of the pressurizing valve and past restrictions 24, each end of the servomotor being provided also with a restricted outlet 30, 31 into a common exhaust line 27 leading either to the suction side of the pump or to the pump delivery line downstream of valve 22, and the effective area of outlet 31 is varied by a poppet, needle, or hinged plate valve 28. As shown, the servomotor acts through a cam 19 and tappet 17 to vary the stroke of the plunger 18 of a fuel delivery pump, but if the pump is of the fixed-delivery type, the servomotor actuates directly a needle valve controlling a spill from downstream of the pressurizing valve back to the pump inlet. Valve 28 may be actuated manually, by a further servomotor, by a temperature sensitive device, or by a capsule 32 subject to an engine condition, e.g. pressure. An over-ride valve subject to over-speeding of the engine may be provided in parallel with valve 28.
GB5746/51A 1951-03-09 1951-03-09 Improvements in or relating to hydraulic servo motors Expired GB698281A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB5746/51A GB698281A (en) 1951-03-09 1951-03-09 Improvements in or relating to hydraulic servo motors
GB8830/52A GB704829A (en) 1951-03-09 1952-04-07 Improvements in or relating to hydraulic servo motors

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB5746/51A GB698281A (en) 1951-03-09 1951-03-09 Improvements in or relating to hydraulic servo motors
GB8830/52A GB704829A (en) 1951-03-09 1952-04-07 Improvements in or relating to hydraulic servo motors

Publications (1)

Publication Number Publication Date
GB698281A true GB698281A (en) 1953-10-14

Family

ID=62529143

Family Applications (2)

Application Number Title Priority Date Filing Date
GB5746/51A Expired GB698281A (en) 1951-03-09 1951-03-09 Improvements in or relating to hydraulic servo motors
GB8830/52A Expired GB704829A (en) 1951-03-09 1952-04-07 Improvements in or relating to hydraulic servo motors

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB8830/52A Expired GB704829A (en) 1951-03-09 1952-04-07 Improvements in or relating to hydraulic servo motors

Country Status (1)

Country Link
GB (2) GB698281A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2911790A (en) * 1956-01-27 1959-11-10 United Aircraft Corp Computing device for fuel control
US3007514A (en) * 1957-12-30 1961-11-07 Bendix Corp Fluid control device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3058449A (en) * 1959-03-02 1962-10-16 Thompson Ramo Wooldridge Inc Rocket engine control

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2911790A (en) * 1956-01-27 1959-11-10 United Aircraft Corp Computing device for fuel control
US3007514A (en) * 1957-12-30 1961-11-07 Bendix Corp Fluid control device

Also Published As

Publication number Publication date
GB704829A (en) 1954-03-03

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