Hydraulic motor
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United States of America Patent
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Feb 21, 2017
Grant Date -
Jan 8, 2015
app pub date -
Feb 14, 2013
filing date -
Feb 22, 2012
priority date (Note) -
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Abstract
A hydraulic motor includes a motor mechanism that rotates by hydraulic liquid pressure led from a hydraulic liquid pressure source. The hydraulic motor includes a casing that defines a casing chamber which accommodates the motor mechanism, a brake mechanism that brakes the rotation of the motor mechanism, a brake release actuator that releases the braking of the brake mechanism by a brake release pressure led from the hydraulic liquid pressure source, and a throttle passage that is in communication with the casing chamber and extracts a portion of hydraulic liquid that is led into the brake release actuator and leads it to the casing chamber.
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