HYDRAULIC MOTOR DEVICE FOR ASSISTING THE MECHANICAL TRANSMISSION OF A VEHICLE
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United States of America Patent
Stats
-
N/A
Issued Date -
Jan 27, 2011
app pub date -
Jan 20, 2009
filing date -
Jan 29, 2008
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A hydraulic motor device including a hydraulic motor having a cylinder block and a cam that are mounted to move in rotation relative to each other. The motor has a fluid distributor for the cylinders, a portion of which distributor is constrained in rotation with the cam, and a stationary distribution coupling connecting the distributor to a fluid feed and to a fluid discharge. The motor has a through passage disposed along the axis of rotation for the purpose of receiving a transmission shaft segment. The motor can be declutched by radially uncoupling the pistons from the cam, the cylinder block remaining stationary relative to the reference frame of the vehicle, and the cam being constrained in rotation with a transmission shaft segment that is disposed in the through passage. The device may be used in addition to or as a replacement for a mechanical transmission.
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Cited Art Landscape
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