Axial piston device having rotary displacement control
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United States of America Patent
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-
Dec 13, 2011
Grant Date -
Nov 5, 2009
app pub date -
Apr 30, 2008
filing date -
Apr 30, 2008
priority date (Note) -
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status (Latency Note)
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Abstract
An axial piston device for use with a hydraulic system is disclosed. The axial piston device may have a body defining at least one bore and having a central axis, a pump piston disposed within the at least one bore to at least partially define a pumping chamber, and a tiltable plate biased into engagement with the pump piston. The axial piston device may also have an actuator configured to selective tilt the plate relative to the central axis of the body to thereby vary a displacement of the pump piston within the at least one bore. The actuator may have a control piston operatively connected to move the tiltable plate, a rotary motor, and a valve driven by the rotary motor to control fluid communication between the control piston and a source of pressurized fluid to move the control piston.
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