Device for detecting and eliminating accumulator fluid leakage t

Details Device for detecting and eliminating accumulator fluid leakage t Device for detecting and eliminating accumulator fluid leakage t

1991-06-06

1993-06-22

Butler, Douglas C.

Fluid-pressure and analogous brake systems

With pump

188151A, 303 92, 303100, 3031133, 3031134, 3031161, 3031192, 303DIG4, B60T 832

Patent

active

052211258

ABSTRACT:
A fluid leakage preventing device incorporated in a hydraulically-operated system which includes an accumulator for storing a working fluid under pressure, an actuator operated by the fluid supplied from the accumulator, and a control valve having an open position and a closed position for fluid communication and disconnection between the accumulator and the actuator, respectively. The fluid leakage preventing device includes a fluid leakage detector for generating an output signal indicative of the leakage flow of the fluid from said accumulator through the control valve placed in the closed position. The device further includes a valve reciprocating arrangement responsive to the output signal of said fluid leakage detector, for effecting at least one reciprocating movement of a valving member of the control valve.

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