Hydraulic motor control
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United States of America Patent
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-
Oct 23, 1984
Grant Date -
N/A
app pub date -
Aug 20, 1981
filing date -
Aug 20, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A control for a variable displacement motor and operable in either direction of rotation of the motor (10) and which acts on a servo cylinder (55) to set the position of a wash plate (50). The control includes a signal-setting valve (65) operable in response to the rate of fluid flow through the motor by sensing a pressure drop in a closed circuit line to the motor to set a variable control signal and the variable control signal is applied to the displacement-setting mechanism (56,55) for the motor to have a decrease in motor displacement related to an increase in the rate of fluid flow through the motor.
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