Piston pump with cam actuated valves
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United States of America Patent
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Sep 22, 2015
Grant Date -
Feb 28, 2013
app pub date -
Aug 31, 2011
filing date -
Aug 31, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
A method of controlling a piston pump is disclosed. The method includes actuating a plurality of pistons housed within a cylinder barrel to cause each of the plurality of pistons to engage in reciprocating motion. Fluid supplied to each of the pistons may be regulated by changing a clock position of an intake cam ring to cause a plurality of intake valves to open and close relative to the clock position of the intake cam ring. Fluid discharged by each of the pistons may be regulated by changing a clock position of an exhaust cam ring to cause a plurality of exhaust valves to open and close relative the clock position of the exhaust cam ring.
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