ELECTRONIC TORQUE AND PRESSURE CONTROL FOR LOAD SENSING PUMPS
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United States of America Patent
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Jun 18, 2020
app pub date -
Feb 24, 2020
filing date -
Sep 30, 2013
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Abstract
An electric torque and pressure control for load sensing pumps includes a variable open circuit pump with a swash plate angle sensor. The pump is connected in line with a pressure compensated load sensing control having an electrically variable pressure relief valve and orifice. Connected to the circuit is an engine speed sensor, a user input device, and a micro-controller. The micro-controller has software that controls a pressure relief setting of the electrically variable pressure relief valve in the pressure sensing control based upon signals from the swash plate sensor and the engine speed sensor and inputs from the user input device.
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