Electrical loop flushing system

Power plants – Pressure fluid source and motor – Condition responsive control of motive fluid flow

Reexamination Certificate

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Reexamination Certificate

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07111458

ABSTRACT:
A loop flushing circuit in a closed circuit hydraulic system has a variable displacement hydraulic pump that is fluidly connected to a hydraulic motor. The flushing flow in the closed circuit is controlled by an electronically proportional flow control valve. The electronically proportional flow control valve is controlled by a control that ensures that the control valve being used is connected to a low pressure side of the closed loop flushing circuit.

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Yeaple, Fluid Power Design Handbook (New York, Marcel Dekker, Inc., 1996) pp. 82-87, TJ843.y63 1995.

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