GB1174244A - Control Valve - Google Patents

Control Valve

Info

Publication number
GB1174244A
GB1174244A GB3071766A GB3071766A GB1174244A GB 1174244 A GB1174244 A GB 1174244A GB 3071766 A GB3071766 A GB 3071766A GB 3071766 A GB3071766 A GB 3071766A GB 1174244 A GB1174244 A GB 1174244A
Authority
GB
United Kingdom
Prior art keywords
piston
valve
chamber
pressure
signal
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
GB3071766A
Inventor
Charles Frederick Bay Shattock
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.)
Siemens Mobility Ltd
Original Assignee
Westinghouse Brake and Signal Co 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 Westinghouse Brake and Signal Co Ltd filed Critical Westinghouse Brake and Signal Co Ltd
Priority to GB3071766A priority Critical patent/GB1174244A/en
Publication of GB1174244A publication Critical patent/GB1174244A/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

Abstract

1,174,244. Fluid-pressure servomotor systems. WESTINGHOUSE BRAKE & SIGNAL CO. Ltd. June 21, 1967 [July 8, 1966], No.30717/66. Heading G3P. A manual input to lever 57 is converted to a proportional electrical signal which is transmitted to valve 51 which transmits a pressure signal to chamber 55 to move diaphragm assembly, 27, 28 rightwards to seat disc 17 of valve 15 at 19 and unseat the end of tube 20 from this disc. The right side of piston 5 is thereby exhausted via 24, 30, 29, 31 whereas the left side of the piston still receives fluid via 21, 23, 25. The consequent rightward movement of the piston 5 is fed back via link 7, crank 2, electrical transmission 63 and valve 61 to chamber 65 to balance the control pressure in chamber 55 to restore the diaphragm assembly to the position shown and arrest movement of the piston. When the supply pressure in line 21 falls below a predetermined level, diaphragm 46 rises to break the electrical supply to valve 8 to allow the latter to open to inter-connect opposite sides of the piston to allow direct manual operation of the latter. Solenoid valve 32, 33 defines a variable leak from exhaust line 31. Valves 51, 61 may be as disclosed in Specification 1,174,243. In a modification, the control and feedback pressures are generated by self-lapping valves operated directly.
GB3071766A 1966-07-08 1966-07-08 Control Valve Expired GB1174244A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3071766A GB1174244A (en) 1966-07-08 1966-07-08 Control Valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3071766A GB1174244A (en) 1966-07-08 1966-07-08 Control Valve

Publications (1)

Publication Number Publication Date
GB1174244A true GB1174244A (en) 1969-12-17

Family

ID=10312044

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3071766A Expired GB1174244A (en) 1966-07-08 1966-07-08 Control Valve

Country Status (1)

Country Link
GB (1) GB1174244A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4509404A (en) * 1979-12-14 1985-04-09 Kobe Steel, Limited Master/slave fluid pressure apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4509404A (en) * 1979-12-14 1985-04-09 Kobe Steel, Limited Master/slave fluid pressure apparatus

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Legal Events

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