Hydraulic control system for operating a reversible...

Details Hydraulic control system for operating a reversible... Hydraulic control system for operating a reversible...

F - Mech Eng,Light,Heat,Weapons

16

H

138/41.11

F16H 61/42 (2006.01) F04B 49/02 (2006.01) F16H 61/46 (2006.01)

Patent

CA 1297380

Abstract of the Disclosure Hydraulic Control System for Operating A Reversible Hydraulic Motor Reversible hydraulic motors driven by fluid from variable displacement pumps are useful in driving various mechanisms of earthmoving machines. It is desirable to control both the speed and direction of the motor with a single lever. The subject hydraulic control system includes a selector valve which has a fluid control section for directing pilot fluid to a reversing valve to reverse the direction of the motor. A signal control valve is mechanically actuated by movement of the selector valve to the operating position so that a regulated pressure control signal is directed to a displacement control of variable displacement pump to regulate the volumetric output of the pump and thus the operating speed of the motor.

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