Construction machine

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9903393
SERIAL NO

14600130

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A construction machine includes a first hydraulic pump, a second hydraulic pump, and a hydraulic circuit. The first hydraulic pump supplies hydraulic oil to a hydraulic actuator of a first system. The second hydraulic pump supplies the hydraulic oil to a hydraulic actuator of a second system. The hydraulic circuit supplies the hydraulic oil flowing out from at least one of the hydraulic actuators of the first and second systems to the intake side or the discharge side of at least one of the first and second hydraulic pumps. At least one of the first and second hydraulic pumps operates as a hydraulic motor so as to assist the other of the first and second hydraulic pumps that operates as a hydraulic pump.

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Patent Owner(s)

  • SUMITOMO HEAVY INDUSTRIES, LTD.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Wu, Chunnan Kanagawa, JP 35 195

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