Hydraulic actuator for isolators
AssigneeWES Technology Inc.
InventorLeslie W. Elsworth
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Abstract
A hydraulic actuator for an isolator such as a diverter valve, the actuator comprising a hydraulic ram (1) one end of which is connected to a lever (2) which is in turn connected to a shaft (3) for a valve plate or other closure. The basic novel characteristic of the actuator is that the end of the actuator frame remote from the shaft is connected to the isolator frame by means of a torque arm reaction anchor (4) so as to prevent the actuator from rotating with the shaft.
Claims6
An isolator, comprising an isolator frame, an isolator shaft having an axis and journaled in said isolator frame for rotational movement relative thereto about said axis, and an isolator closure member carried by said isolator shaft for movement therewith;
- a hydraulic actuator for said isolator shaft, said hydraulic actuator comprising an actuator frame having first and second ends, with a part of said isolator shaft extending into said first end of said actuator frame, a lever connected to said part of said isolator shaft in the region of said first end of said actuator frame, and a hydraulic ram arranged in said actuator frame, said ram having one end connected to said lever adjacent said first end of said actuator frame proximate to said isolator shaft, and another end connected to said actuator frame in the region of said second end of said actuator frame remote from said isolator shaft;
- and a torque arm reaction anchor operatively interconnected between said other end of said actuator frame remote from said isolator shaft and said isolator frame for enabling said torque arm reaction anchor to prevent said actuator from rotating with said isolator shaft.
Dependencies are inferred from the claim text.