Device for remote control an actuator of a shut-off member

Details Device for remote control an actuator of a shut-off member Device for remote control an actuator of a shut-off member

1980-08-20

1983-12-13

Walton, George L.

Valves and valve actuation

Fluid actuated or retarded

Pilot or servo type motor

48192, 60407, 60409, 91 4R, 251 26, F16K 31122

Patent

active

044201397

ABSTRACT:
A device for remote control of actuator of a shut-off member comprises an autonomous source of energy and a distributor connected therewith. The autonomous source of energy is fashioned as two units, each unit containing at least two gas generators with igniter means, a pneumatic OR gate and a selector. The input of each unit is connected to a corresponding control channel while outputs are connected to respective input and control channels of the distributor. The present invention improves the reliability of control of the shut-off member and facilitates the maintenance of the device during operation.

REFERENCES:
patent: 2419375 (1947-04-01), Shartle
patent: 3100965 (1963-08-01), Blackburn
patent: 3114297 (1963-12-01), Gizeski
patent: 3604679 (1971-09-01), Pennington
patent: 4034958 (1977-07-01), Masclet
patent: 4120478 (1978-10-01), Hasegawa
patent: 4223531 (1980-09-01), Fukunaga et al.
patent: 4296910 (1981-10-01), Gratzmuller
R. Molle, Hydraulic and Pneumatic Components of Automatic Devices, Russian Edition of 1972, pp. 90-94, 238 and 239, Dunod, Paris 1967.
J. M. Bashta, Hydraulic Drives and Hydro-Pneumatic Automatic Control, Mashinoslroenie Publishers, Moscow, 1972, pp. 67-72.
Service Manual No. 649577 for a 300 mm diameter, 75 Kgf/cm.sup.2 ball valve, by the Firm Saut du Tan, France.

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