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.

Date of Patent:
Sep. 02, 2014

Filed:

Sep. 01, 2011
Applicant:

Masayuki Sayama, Tochigi, JP;

Inventor:

Masayuki Sayama, Tochigi, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16D 48/02 (2006.01); F16D 25/12 (2006.01); F16H 61/00 (2006.01);
U.S. Cl.
CPC ...
F16D 48/02 (2013.01); F16H 61/0021 (2013.01); F16D 2048/0281 (2013.01);
Abstract

A hydraulic system is preferably used in combination with a motor and a clutch of a hybrid vehicle. The hydraulic system is comprised of a pump coupled with the motor to pressurize fluid; a pressurized fluid path coupled with the pump to conduct the pressurized fluid; an operating fluid path connecting the pressurized fluid path with the clutch to actuate the clutch; a depressurized fluid path to conduct depressurized fluid; and an on-off valve operated in cooperation with the clutch to selectively permit fluid connection of the pressurized fluid path to the depressurized fluid path so as to relieve pressure in the pressurized fluid path.


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