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:
Oct. 24, 2017
Filed:
Aug. 27, 2013
Mitsubishi Hitachi Power Systems, Ltd., Kanagawa, JP;
Tetsuya Hashimoto, Tokyo, JP;
Yasuhiko Okuda, Tokyo, JP;
MITSUBISHI HITACHI POWER SYSTEMS, LTD., Kanagawa, JP;
Abstract
An object of the present invention is to prevent breakage of a unidirectional filter part for high-pressure oil. A hydraulic devicesupplies oil to a high-pressure oil channel Land a low-pressure oil channel Lfrom an oil tankvia a supply pump. The hydraulic deviceincludes an accumulatorcapable of accumulating a hydraulic pressure of the oil supplied to the high-pressure oil channel from the supply pump; a filter partdisposed between the supply pump and a connection point Nat which the high-pressure oil channel connects to the accumulator, along a direction in which the oil is supplied; and a check valvecapable of preventing a backflow of the oil to the filter part, and disposed between the filter part and the connection point.