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. 19, 2010
Filed:
Nov. 16, 2006
Naoya Okada, Anjo, JP;
Kutsuhisa Ishii, Okazaki, JP;
Mikio Iwase, Anjo, JP;
Hirofumi Ota, Toyota, JP;
Kazutoshi Nozaki, Aichi-ken, JP;
Atsushi Honda, Seto, JP;
Naoya Okada, Anjo, JP;
Kutsuhisa Ishii, Okazaki, JP;
Mikio Iwase, Anjo, JP;
Hirofumi Ota, Toyota, JP;
Kazutoshi Nozaki, Aichi-ken, JP;
Atsushi Honda, Seto, JP;
Aisin AW Co., Ltd., , JP;
Abstract
An automatic transmission supplies oil pressure to a hydraulic servo of a second clutch through an oil pressure supply passage extending through a first drum and a second drum, the oil pressure supply passage including a plurality of first oil holes formed in the first drum at equal, circumferential intervals, a plurality of second oil holes formed in the second drum at equal, circumferential intervals, and an annular oil passage formed between the first and second drums and connecting the first oil holes and the second oil holes. The number of first oil holes is different from the number of second oil holes.