HYDRAULIC AXIAL PISTON PUMP ABLE TO OPERATE IN BOTH DIRECTIONS
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United States of America Patent
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N/A
Issued Date -
Dec 19, 2013
app pub date -
May 30, 2013
filing date -
Jun 14, 2012
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A hydraulic pump rotates in both directions of rotation, and includes a casing, a common drive shaft mounted so as to be able to rotate relative to the casing, two swashplates borne by the common drive shaft, these two swashplates being symmetric and opposite each other and each including one supply crescent, a respective hollow piston pressing against each swashplate via the intermediary of a slipper shoe and designed to slide in a respective cylinder connected to the casing, the crescent of the swashplate being in each case arranged so as to pass over the hollow piston during a suction phase of the hollow piston, each cylinder being fitted with a check valve on the discharge side, such that only one of the two swashplates provides an output when the drive shaft rotates in one direction, the other swashplate providing an output when the shaft rotates in the other direction.
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Family
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