System with constant force actuator

Details System with constant force actuator System with constant force actuator

F - Mech Eng,Light,Heat,Weapons

15

B

138/69.13

F15B 11/10 (2006.01) F15B 11/02 (2006.01)

Patent

CA 1176138

System With Constant Force Actuator Abstract A control mechanism is provided to controllably maintain a constant force on an actuator and provide fluid flow to a downstream control valve by controlling a pilot differential pressure between first and second ends of a pilot operated control valve. A two position valve acting in response to a predetermined pressure level in the actuator modulatably controls the flow of pressurized pilot fluid to the pilot operated control valve to position the pilot operated control valve. This maintains the pressure in the actuator at the predetermined pressure level and passes the excess flow of fluid from a source to the downstream control valve.

383797

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