Valves and valve actuation – Biased trip – Fluid pressure trip actuation
Patent
1983-12-12
1987-10-20
Cohan, Alan
Valves and valve actuation
Biased trip
Fluid pressure trip actuation
251 94, 91 44, 91 45, 92 24, 92 26, 92 27, F16K 31124, F16K 3500
Patent
active
047009250
ABSTRACT:
The servomotor arrangement has a moving system comprising a piston movable in a cylinder. A latching or retaining member movable transversely of the direction of movement of the system is provided to retain or latch the moving system. The latching member is in operative connection with a pressure chamber, and the pressure chamber is in communication by way of a stop member with a pressure medium source and with a pressure medium sink. The latching member is controllable, a feature which has advantages for the operating behavior of the servomotor arrangement.
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Cohan Alan
Rivell John A.
Sulzer Brothers Limited
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