CH475492A - Hydraulic torque amplifier - Google Patents

Hydraulic torque amplifier

Info

Publication number
CH475492A
CH475492A CH455268A CH455268A CH475492A CH 475492 A CH475492 A CH 475492A CH 455268 A CH455268 A CH 455268A CH 455268 A CH455268 A CH 455268A CH 475492 A CH475492 A CH 475492A
Authority
CH
Switzerland
Prior art keywords
hydraulic torque
torque amplifier
amplifier
hydraulic
torque
Prior art date
Application number
CH455268A
Other languages
French (fr)
Inventor
Fenwick Jackson Joseph
Original Assignee
Pratt Prec Hydraulics 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 Pratt Prec Hydraulics Ltd filed Critical Pratt Prec Hydraulics Ltd
Publication of CH475492A publication Critical patent/CH475492A/en

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
    • F15B9/00—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member
    • F15B9/02—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type
    • F15B9/08—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type controlled by valves affecting the fluid feed or the fluid outlet of the servomotor
    • F15B9/12—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type controlled by valves affecting the fluid feed or the fluid outlet of the servomotor in which both the controlling element and the servomotor control the same member influencing a fluid passage and are connected to that member by means of a differential gearing
    • 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
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/38—Control of exclusively fluid gearing
    • F16H61/40—Control of exclusively fluid gearing hydrostatic
    • F16H61/46—Automatic regulation in accordance with output requirements

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Electrically Driven Valve-Operating Means (AREA)
  • Hydraulic Motors (AREA)
CH455268A 1967-04-07 1968-03-26 Hydraulic torque amplifier CH475492A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB05982/67A GB1216482A (en) 1967-04-07 1967-04-07 Improvements in or relating to hydraulic torque amplifiers

Publications (1)

Publication Number Publication Date
CH475492A true CH475492A (en) 1969-07-15

Family

ID=10069094

Family Applications (1)

Application Number Title Priority Date Filing Date
CH455268A CH475492A (en) 1967-04-07 1968-03-26 Hydraulic torque amplifier

Country Status (5)

Country Link
US (1) US3516333A (en)
CH (1) CH475492A (en)
DE (1) DE1750040B2 (en)
FR (1) FR1561614A (en)
GB (1) GB1216482A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3596569A (en) * 1969-06-03 1971-08-03 Cincinnati Milling Machine Co Valve for a closed-loop hydraulic torque amplifier
GB1363880A (en) * 1970-12-17 1974-08-21 Hartmann Laemmle Ohg Fluid-pressure follow-up control apparatus
JPS49111693U (en) * 1973-01-26 1974-09-24
US4235156A (en) * 1978-11-16 1980-11-25 Zenny Olsen Digital servovalve and method of operation

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US786652A (en) * 1902-03-13 1905-04-04 Standard Plunger Elevator Company Pilot-valve for hydraulic elevators.
US2311010A (en) * 1939-08-05 1943-02-16 Vickers Inc Mechanical clutch follow-up device
BE497379A (en) * 1949-08-06
BE557823A (en) * 1956-05-26
DE1426491B2 (en) * 1962-08-01 1971-12-02 Fujitsu Ltd , Communications and Electronics, Tokio PRESSURE MEASURED TORQUE AMPLIFIER
US3216331A (en) * 1963-05-24 1965-11-09 Robertshaw Controls Co Electric-pneumatic process controller
US3285141A (en) * 1964-07-07 1966-11-15 Jr Raymond C Palmer Rotary null pilot valve controlled device
US3310284A (en) * 1964-08-20 1967-03-21 Fujitsu Ltd Hydraulic system rotary pilot valve

Also Published As

Publication number Publication date
FR1561614A (en) 1969-03-28
DE1750040A1 (en) 1970-10-22
DE1750040B2 (en) 1972-11-30
GB1216482A (en) 1970-12-23
US3516333A (en) 1970-06-23

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Legal Events

Date Code Title Description
PL Patent ceased