Hydraulic drive apparatus

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11137001
APP PUB NO 20200248719A1
SERIAL NO

16636077

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Abstract

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A hydraulic drive apparatus includes: an electric motor; a variable displacement pump driven by the electric motor, the pump including a pair of pump ports whose delivery side and suction side are switched with each other in accordance with a rotation direction of the electric motor; a hydraulic actuator connected to the pair of pump ports by a first supply/discharge line and a second supply/discharge line; and a control device that controls the electric motor based on an actuator position command value for the hydraulic actuator. The pump is configured such that a volume of the pump decreases in accordance with increase in a pressure difference between the first supply/discharge line and the second supply/discharge line.

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Patent Owner(s)

Patent OwnerAddress
KAWASAKI JUKOGYO KABUSHIKI KAISHA1-1 HIGASHIKAWASAKI-CHO 3-CHOME CHUO-KU KOBE-SHI HYOGO 6508670 ?6508670

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Anada, Tadashi Kobe, JP 8 13
Hattori, Tomohide Kobe, JP 3 3
Ogata, Mariko Kobe, JP 6 9
Tanaka, Hideki Nishinomiya, JP 448 5293
Watanabe, Hideki Kobe, JP 241 1931
Yoshimura, Isamu Kobe, JP 5 9

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