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:
May. 12, 2015
Filed:
Feb. 29, 2012
Junji Tanaka, Anjo, JP;
Yuito Abe, Okazaki, JP;
Kazuyoshi Ito, Tsushima, JP;
Koji Maeda, Anjo, JP;
Naohisa Momiyama, Hekinan, JP;
Junji Tanaka, Anjo, JP;
Yuito Abe, Okazaki, JP;
Kazuyoshi Ito, Tsushima, JP;
Koji Maeda, Anjo, JP;
Naohisa Momiyama, Hekinan, JP;
Aisin AW Co., Ltd., Anjo, JP;
Abstract
A lockup clutch mechanism of a hydraulic transmission device includes a lockup piston that is capable of moving toward a front cover to press first and second friction plates, and a flange member that together with the lockup piston defines an engagement-side oil chamber. The front cover and the lockup piston define a first lubricant passage that supplies hydraulic oil to the first and second friction plates. A second lubricant passage communicating with the first lubricant passage is formed in a centerpiece of the front cover. A first shaft oil passage communicating with the engagement-side oil chamber and a second shaft oil passage communicating with the second lubricant passage are formed in an input shaft.