Summing pressure compensation control
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United States of America Patent
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-
Apr 26, 1988
Grant Date -
N/A
app pub date -
Dec 13, 1985
filing date -
Dec 13, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A displacement control for a variable displacement hydraulic motor wherein the control is a summing pressure compensator control which is responsive to the pressures of a plurality of loads so that the average, weighted average, or total pressures of the loads can be sensed to generate a control signal for increasing the displacement of at least one motor when the plurality of pressures have a sum or average above a predetermined level. The summing pressure compensator control can also include an overpressure sensing device which is responsive to the pressure of one load, or the highest pressure of more than one load, to also provide a control signal to increase motor displacement. The increase in motor displacement limits the pressure of the motor system.
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