Radial piston hydraulic motor

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9556735
APP PUB NO 20140298982A1
SERIAL NO

14245664

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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The invention relates to a radial piston hydraulic motor. The radial piston hydraulic motor comprises a cam ring provided, with a wave-shaped inner surface and radial cylinders provided in the inner part inside the cam ring and pistons that move therein as well as rollers coupled to the pistons so as to follow the inner surface of the cam ring. By the effect of the working pressure of hydraulic oil conveyed to the cylinders, the rollers that are pressed against the inner surface of the cam ring provide a rotating movement of the cam ring and the inner part relative to each other. The hydraulic motor is provided with disengaging members disengaging the rollers coupled to the pistons from contact to the inner surface of the cam ring when the working pressure stops acting in the cylinders for bringing the hydraulic motor into freewheeling. The hydraulic motor is provided with a control coupling which, when the prevailing pressure of hydraulic oil in the working pressure line that leads to the cylinders drops below a specific level, automatically disengages the cylinders from the working pressure line and couples the hydraulic motor into freewheeling.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
BLACK BRUIN INC (PARALLEL COMPANY TO BLACK BRUIN OY)VALMETINTIE 9 JYSKA 40420

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ryyppo, Roni Jyväskylä{umlaut over ( )}, FI 3 0

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