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:
Feb. 11, 2020
Filed:
Mar. 07, 2017
Aisin Aw Co., Ltd., Anjo-shi, Aichi-ken, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;
Kenichi Tsuchida, Nishio, JP;
Toshiaki Hayashi, Toyohashi, JP;
Yoichiro Kimura, Anjo, JP;
Syuji Moriyama, Nagakute, JP;
Yoshinobu Soga, Toyota, JP;
Hiromitsu Nitani, Okazaki, JP;
Takafumi Inagaki, Kasugai, JP;
Tetsuya Yamamoto, Toyota, JP;
AISIN AW CO., LTD., Anjo, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A hydraulic control device includes: a pressure regulation valve that regulates a hydraulic pressure of oil supplied from an oil pump; a discharge oil passage through which the oil discharged from a fluid coupling flows when a lockup clutch is disengaged; a lubrication oil passage that supplies the oil from the discharge oil passage to a location to be lubricated; a return oil passage that returns the oil drained from the pressure regulation valve to a suction port of the oil pump; a connection oil passage that connects the lubrication oil passage and the return oil passage; and a flow direction regulation valve that is provided in the connection oil passage.