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. 07, 2018
Filed:
Sep. 30, 2014
Applicant:
Aisin Aw Co., Ltd., Anjo-shi, Aichi-ken, JP;
Inventors:
Nobuyuki Hirai, Anjo, JP;
Masamichi Yamaguchi, Anjo, JP;
Yoshimitsu Hyodo, Anjo, JP;
Kenichi Tsuchida, Anjo, JP;
Naoyuki Fukaya, Anjo, JP;
Assignee:
AISIN AW CO., LTD., Anjo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F15B 13/06 (2006.01); F15B 11/17 (2006.01); F16H 61/00 (2006.01);
U.S. Cl.
CPC ...
F15B 13/06 (2013.01); F15B 11/17 (2013.01); F16H 61/0021 (2013.01); F16H 61/0031 (2013.01); F15B 2211/20515 (2013.01); F15B 2211/20523 (2013.01); F15B 2211/20576 (2013.01);
Abstract
A hydraulic device wherein an orifice is provided upstream of the discharge valve in an oil passage from the electric pump, a drain oil passage from the second hydraulic servo communicates between the orifice and the discharge valve in the oil passage from the electric pump, and an oil pressure in the oil passage upstream of the orifice is maintained at a predetermined pressure higher than the set pressure.