System for coupling a piston for a hydraulic pump motor
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United States of America Patent
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app pub date -
Mar 8, 2016
filing date -
Mar 9, 2015
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Abstract
A system (300) for coupling a piston for a hydraulic pump motor is provided for a hydraulic pump motor which includes a central rotor (3) of a pump motor which houses a hydraulic cylinder (14) inside of which a hydraulic piston (13) moves in translation and can push a tappet (18) guided by a hydraulic piston guided in translation by a tappet guide (19), the system (300) including a connection shaft (301) integral by a first end of the tappet (18) guided by a hydraulic piston and traversing the hydraulic piston (13) in the direction of its length via an orifice (307) of the connection shaft whereas a retention spring (304) is supported on the connection shaft (301) in the vicinity of a second end for maintaining this piston (13) in contact with the tappet (18) guided by the hydraulic piston.
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