Motor operated valve actuator diagnostic system and test stand
AssigneeWestinghouse Electric Corp.
InventorChristopher P. Smith
Life of this patent
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Abstract
Disclosed is apparatus and a system for the diagnostic testing of a valve actuator used in an electric motor operated valve that is able to induce a variety of actively controllable and adjustable torsional and axial loads on the valve actuator and while providing measurement of both the torsional and axial forces being produced by the actuator while subject to the induced loads.
Claims15
Apparatus for testing a motor operated valve actuator comprising a test stand adapted to support an electric motor operated valve actuator in an operating position, a rotatable drive shaft member having one end thereof secured to said actuator and the other end extended within the test stand, means mounted between the actuator and the test stand for measuring both axial and torsional forces produced by the actuator, means connected to the test stand adapted to apply an adjustable and controllable amount of torsional braking force to the drive shaft member during the rotation thereof and means connected to the test stand adapted to apply an adjustable and controllable amount of axial force to the drive shaft member during the rotation thereof.
Apparatus for testing a motor operated valve actuator comprising a test stand adapted to support said actuator, a rotatable drive shaft member connected to said actuator, means connected to said test stand for applying an adjustable and controllable amount of torsional braking force to said drive shaft member during the rotation thereof by said actuator, and means connected to said test stand for applying an adjustable and controllable amount of axial force to the drive shaft member during the rotation thereof by said actuator.
Dependencies are inferred from the claim text.