Construction machine

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 12054918
APP PUB NO 20230085676A1
SERIAL NO

17908956

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Abstract

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The present invention provides a construction machine equipped with a pressure accumulation device that accumulates return oil from an actuator, and that can implement both improvement in fuel efficiency with enhancement in workability. To achieve the foregoing, a controller sets an actuator upper limit output power that is an upper limit for an output power of the actuator according to a work mode selected by a work mode selection device, and controls a first control valve and a second control valve such that a sum of an output power of a hydraulic pump and an output power of the pressure accumulation device does not exceed the actuator upper limit output power.

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Patent Owner(s)

Patent OwnerAddress
HITACHI CONSTRUCTION MACHINERY CO LTD16-1 HIGASHIUENO 2-CHOME TAITO-KU TOKYO 110-0015

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hijikata, Seiji Tsukuba, JP 44 184
Hoshino, Masatoshi Tsuchiura, JP 77 1221
Tsuruga, Yasutaka Ryugasaki, JP 68 327
Yagisawa, Ryou Tsuchiura, JP 5 0

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