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:
Jan. 04, 2011
Filed:
Feb. 22, 2008
Masaaki Nishida, Anjo, JP;
Hiroshi Katou, Anjo, JP;
Masashi Kitou, Anjo, JP;
Kohei Iizuka, Anjo, JP;
Masaaki Nishida, Anjo, JP;
Hiroshi Katou, Anjo, JP;
Masashi Kitou, Anjo, JP;
Kohei Iizuka, Anjo, JP;
Aisin AW Co., Ltd., Anjo, JP;
Abstract
An automatic transmission that includes two clutches that are provided in mutually different positions in a radial direction while overlapping each other in an axial direction. The two clutches each include a clutch drum; a piston that structures a operating oil chamber while using a part of the clutch drum as a cylinder; a plurality of friction plates that engage the clutch drum; and a cancel oil chamber that is disposed on a back face side of the piston and that cancels a centrifugal hydraulic pressure acting on the operating oil chamber.