Hydraulic system for operation of a winch
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United States of America Patent
Stats
-
Feb 19, 1980
Issued Date -
N/A
app pub date -
Oct 4, 1978
filing date -
Feb 21, 1974
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Hydraulic system for operation of a winch, including a hydraulic motor for operation of the winch, a pump for pumping hydraulic oil for operation of the motor, a manoeuvering valve for control of the speed of the motor and rotational direction, a first choke valve which is connected in series with the pump, and a second choke valve which is connected in parallel with the motor, the system including two or more hydraulic motors connected in parallel, with throughflow both ways, preferably of the multi-stage type, and drive-connected to the same winch shaft.
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