Torque limiter device for gas hydraulic actuators

Details Torque limiter device for gas hydraulic actuators Torque limiter device for gas hydraulic actuators

F - Mech Eng,Light,Heat,Weapons

15

B

F15B 15/20 (2006.01) E21B 33/035 (2006.01) F16K 31/12 (2006.01)

Patent

CA 2059211

- i - ABSTRACT of the DISCLOSURE Used in conjunction with a gas hydraulic actuator, the device is designed to prevent the transmission of stress-inducing torque to a valve by unloading excess gas pressure against a spring bias whenever the difference in pressure between the gas directed into one chamber and the oil directed into another chamber rises above a certain value, determined by setting the spring at a suitable tension; in the event that a valve operated by the actuator should become stuck, the torque limiting action disallows the application of excessive stresses, thereby protecting the valve from damage or even total breakdown.

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