GB985259A - Improvements in or relating to servo mechanisms - Google Patents

Improvements in or relating to servo mechanisms

Info

Publication number
GB985259A
GB985259A GB3019363A GB3019363A GB985259A GB 985259 A GB985259 A GB 985259A GB 3019363 A GB3019363 A GB 3019363A GB 3019363 A GB3019363 A GB 3019363A GB 985259 A GB985259 A GB 985259A
Authority
GB
United Kingdom
Prior art keywords
piston
valve
actuator
exhaust
pressure
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
GB3019363A
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.)
ZF Friedrichshafen AG
Original Assignee
ZF Friedrichshafen AG
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 ZF Friedrichshafen AG filed Critical ZF Friedrichshafen AG
Publication of GB985259A publication Critical patent/GB985259A/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
    • 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
    • F15B9/10—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 the controlling element and the servomotor each controls a separate member, these members influencing different fluid passages or the same passage
    • 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
    • F16H61/26—Generation or transmission of movements for final actuating mechanisms
    • F16H61/28—Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted
    • F16H61/30—Hydraulic or pneumatic motors or related fluid control means therefor
    • 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
    • F16H61/26—Generation or transmission of movements for final actuating mechanisms
    • F16H61/28—Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted
    • F16H61/30—Hydraulic or pneumatic motors or related fluid control means therefor
    • F16H2061/301—Hydraulic or pneumatic motors or related fluid control means therefor for power assistance, i.e. servos with follow up action

Abstract

985,259. Change-speed control. ZAHNRADFABRIK FRIEDRICHSCHAFEN A.G. July 30, 1963 [Aug. 10, 1962], No. 30193/63. Heading F2D. [Also in Division G3] A servo mechanism particularly for use as a power-assisted gear change mechanism, comprises a double-acting piston 2 having a cavity 6 supplied with fluid pressure through a port 14 and an actuating member 1 which carries elastically deformable valve members 7, 8 preferably urged apart by a spring 13. The valve members co-operate with seats 11, 12 on the piston to control flow of pressure fluid to pressure chambers 4, 5 through passages 20 and 22, 23, 24 respectively and with seats 9, 10 on the actuating member to control exhaust of pressure fluid from the chambers through passages 20, 19, 17 and 24, 23, 22, 21, 18 respectively. With the actuator and piston in the position shown both chambers 4, 5 are open to exhaust. If the actuator is moved to the right, say, the valve member 7 remains in contact with the seat 11 and chamber 4 is open to exhaust while the valve member 8 is deformed by the seat to close the chamber 5 to exhaust and the valve is lifted off the seat 12 to allow fluid pressure in cavity 6 to flow to chamber 5 thus causing movement of the piston 2 to the right until the actuator and valve are again in the relative position shown. The piston 2 has member 25 which is connected to the adjusted member such as the gear shift finger. The fluid supply to the cavity 6 may be provided in the actuator 1.
GB3019363A 1962-08-10 1963-07-30 Improvements in or relating to servo mechanisms Expired GB985259A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEZ9582A DE1225052B (en) 1962-08-10 1962-08-10 Servo control device for pressurized pistons

Publications (1)

Publication Number Publication Date
GB985259A true GB985259A (en) 1965-03-03

Family

ID=7620966

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3019363A Expired GB985259A (en) 1962-08-10 1963-07-30 Improvements in or relating to servo mechanisms

Country Status (3)

Country Link
DE (1) DE1225052B (en)
FR (1) FR1366361A (en)
GB (1) GB985259A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3412737A1 (en) * 1983-09-01 1985-03-21 Wabco Westinghouse Steuerungstechnik GmbH & Co, 3000 Hannover Switching device
US5074193A (en) * 1987-07-29 1991-12-24 Brunswick Corporation Marine power steering system
US5241894A (en) * 1987-07-29 1993-09-07 Brunswick Corporation Marine power steering system
DE10031754A1 (en) * 1999-07-05 2001-01-11 Luk Lamellen & Kupplungsbau Faulty selection protection device for automatic gearbox, especially for reverse gear, has bias device exerting force on central selector shaft that selection/change actuator must overcome
CN113324053B (en) * 2021-06-24 2023-07-14 陕西法士特齿轮有限责任公司 Gear shifting booster

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR562326A (en) * 1922-03-13 1923-11-08 Servo motor device
US2245714A (en) * 1939-02-09 1941-06-17 Bendix Prod Corp Transmission control mechanism

Also Published As

Publication number Publication date
FR1366361A (en) 1964-07-10
DE1225052B (en) 1966-09-15

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