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:
Jun. 19, 2007
Filed:
Oct. 17, 2003
Shigeru Suzuki, Tokyo, JP;
Satoru Shimada, Tokyo, JP;
Takahiro Yamano, Tokyo, JP;
Sumiko Seki, Yokohama, JP;
Takahiko Itoh, Yokohama, JP;
Shigeru Suzuki, Tokyo, JP;
Satoru Shimada, Tokyo, JP;
Takahiro Yamano, Tokyo, JP;
Sumiko Seki, Yokohama, JP;
Takahiko Itoh, Yokohama, JP;
Saxa, Inc., Tokyo, JP;
Yukigaya Institute Co., Ltd., Kanagawa, JP;
Abstract
A hydraulic systemof the present invention has a hydraulic pump driven by a driving source, a hydraulic pump motordriven by an operating oil discharged from the hydraulic pump and flowing in an oil path, an inertial bodyconnected to a rotary shaft of the hydraulic pump motor, an oil pathconnected between an outlet port of the hydraulic pump motor and a load, an unloading oil pathbranched from the oil path, and an on-off valveinserted in the unloading oil path. In this configuration, as the on-off valve is opened and closed, a high pressure is generated in the oil pathby making use of kinetic energy of the inertial body. The inertial body is driven by hydraulic power and the inertial body is separated from the driving source, which also provides an effect of increasing degrees of freedom for an instrument layout.