The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 10, 2010
Filed:
Feb. 15, 2006
Kensuke Futahashi, Takasago, JP;
Hiroshi Satou, Takasago, JP;
Masataka Kawaguchi, Takasago, JP;
Fujio Eguchi, Sagamihara, JP;
Toshiyuki Honda, Sagamihara, JP;
Keizo Ogino, Nagaokakyo, JP;
Shingo Yuguchi, Nagaokakyo, JP;
Kazuhito Kawashima, Nagakakyo, JP;
Michio Akao, Nagaokakyo, JP;
Kensuke Futahashi, Takasago, JP;
Hiroshi Satou, Takasago, JP;
Masataka Kawaguchi, Takasago, JP;
Fujio Eguchi, Sagamihara, JP;
Toshiyuki Honda, Sagamihara, JP;
Keizo Ogino, Nagaokakyo, JP;
Shingo Yuguchi, Nagaokakyo, JP;
Kazuhito Kawashima, Nagakakyo, JP;
Michio Akao, Nagaokakyo, JP;
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Nippon Yusoki Co., Ltd., Kyoto, JP;
Abstract
An energy recovering system of a hydraulic lift device for a battery operated industrial truck. With the system, working oil can be supplied to other hydraulic actuators while energy recovering operation is performed by the hydraulic lift device, and energy recovering efficiency is increased. A hydraulic motor () is disposed in a fluid path for recovering pressurized working fluid from a lift cylinder () via a control valve () to a working fluid reservoir tank () so that the hydraulic motor () is driven by the pressurized working fluid returning from the lift cylinder (). The hydraulic motor () is connected to an electric motor () for driving a hydraulic pump (), which supplies pressurized fluid to the lift cylinder (), by means of a one-way clutch () which performs torque transmission only from the hydraulic motor () to the electric motor ().