Hydraulic piston pump with throttle control
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United States of America Patent
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Jun 23, 2015
Grant Date -
Jul 17, 2014
app pub date -
Jan 15, 2013
filing date -
Jan 15, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
A pump system has a piston pump. The piston pump has a cylinder block with an inlet port, an outlet port, and a plurality of cylinders. Each cylinder in the plurality of cylinders is connected to the inlet port by an inlet passage and to the outlet port by an outlet passage. The piston pump has a plurality of pistons disposed in the plurality of cylinders. A drive shaft drives the pistons within the cylinders. A throttle member independently throttles flow in each inlet passage. The pump system has an electrohydraulic actuator governing movement of the throttle member.
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