Piston pump and motor
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United States of America Patent
Stats
-
Mar 21, 2017
Grant Date -
Oct 23, 2014
app pub date -
Apr 11, 2014
filing date -
Oct 12, 2011
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A plunger pump or plunger motor includes a block accommodating a first cylindrical chamber and a plunger movable in this chamber and a drive shaft connected to this plunger, as well as a second cylindrical chamber and a control valve movable in this second cylindrical chamber. Holes O3 and O4 can alternately be brought into communication with the connection for the delivery pipe by the plunger and with a connecting hole for a pressure line. The control valve can establish a communication between the hole O2 and the connecting hole. The drive shaft is connected to a further plunger which is movable in a third cylindrical chamber in which there is a suction hole or delivery hole. The control valve can alternately establish a communication between the suction hole or delivery hole with a connecting hole for a suction pipe and the connecting hole for the pressure line.
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Family
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Cited Art Landscape
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