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. 20, 2009
Filed:
Nov. 16, 2006
Naoya Okada, Anjo, JP;
Katsuhisa Ishii, Aichiken, JP;
Minoru Todo, Takahoma, JP;
Hirofumi Ota, Toyota, JP;
Kazutoshi Nozaki, Aichiken, JP;
Atsushi Honda, Aichiken, JP;
Naoya Okada, Anjo, JP;
Katsuhisa Ishii, Aichiken, JP;
Minoru Todo, Takahoma, JP;
Hirofumi Ota, Toyota, JP;
Kazutoshi Nozaki, Aichiken, JP;
Atsushi Honda, Aichiken, JP;
Aisin A W Co., Ltd., , JP;
Abstract
A piston operating a first clutch is disposed between a first drum accommodating the first clutch and a second drum accommodating a second clutch, and an oil reservoir storing lubricating oil that has lubricated the first clutch is provided on an inner cylindrical surface of a skirt portion of the piston. Barriers having different inner diameters are provided to the axial front and rear of the oil reservoir. When the second clutch is disengaged such that the amount of lubricating oil supplied to the oil reservoir increases, the lubricating oil overflows the barrier having the smaller inner diameter, and thus flows to the second clutch.