Winch mechanisms

Details Winch mechanisms Winch mechanisms

F - Mech Eng,Light,Heat,Weapons

16

H

138/41.14

F16H 39/04 (2006.01) B66D 1/52 (2006.01) B66D 1/74 (2006.01)

Patent

CA 1099194

ABSTRACT OF THE DISCLOSURE A winch mechanism of the surface compensating type for lifting objects from the surface of the sea comprises two or more variable pressure constant displacement hydraulic pump/motors coupled to drive a rope haulage mechanism; a pump connected for pumping operating fluid to the hydraulic pump/motors; a fluid accumulator branched from the high pressure fluid supply line from the pump to the pump/motors; and first and second non-return valves. The first non-return valve is in the high pressure fluid supply line between the fluid accumulator and the pump/motors to limit the flow of fluid from the accumulator to one only of the pump/motors, and the second non-return valve is between the high pressure fluid line and a low pressure fluid return line to permit the other pump/motor(s) to act as a pump.

324762

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