Shovel

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United States of America Patent

PATENT NO 9932722
SERIAL NO

14695194

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A shovel may be provided with a main pump, hydraulic actuators including a swing hydraulic motor, a control valve that controls a flow of a working oil between the main pump and the hydraulic actuators, and two accumulators connected between the swing hydraulic motor and the control valve. The two accumulators can respectively release the working oil at an upstream of the main pump.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
SUMITOMO HEAVY INDUSTRIES LTD1-1 OSAKI 2-CHOME SHINAGAWA-KU TOKYO 141-6025

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Wu, Chunnan Kanagawa, JP 36 229

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