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:
Jul. 06, 2010
Filed:
Nov. 01, 2006
Shinya Kamada, Kure, JP;
Takamichi Teraoka, Hiroshima, JP;
Junichi Doi, Hiroshima, JP;
Tokimori Saka, Hiroshima, JP;
Tatsuhiko Iwasaki, Hiroshima, JP;
Naohiro Sakaue, Hiroshima, JP;
Tatsutoshi Mizobe, Hiroshima, JP;
Yoshihiko Fujita, Aki-gun, JP;
Norio Iwashita, Higashihiroshima, JP;
Satoshi Komori, Hiroshima, JP;
Kazuhiko Ueda, Hatsukaichi, JP;
Seiji Esaki, Hiroshima, JP;
Shinya Kamada, Kure, JP;
Takamichi Teraoka, Hiroshima, JP;
Junichi Doi, Hiroshima, JP;
Tokimori Saka, Hiroshima, JP;
Tatsuhiko Iwasaki, Hiroshima, JP;
Naohiro Sakaue, Hiroshima, JP;
Tatsutoshi Mizobe, Hiroshima, JP;
Yoshihiko Fujita, Aki-gun, JP;
Norio Iwashita, Higashihiroshima, JP;
Satoshi Komori, Hiroshima, JP;
Kazuhiko Ueda, Hatsukaichi, JP;
Seiji Esaki, Hiroshima, JP;
Mazda Motor Corporation, Hiroshima, JP;
Abstract
There is provided an automatic transmission comprising a first shaft capable of receiving torque from an engine, and four planetary gear sets arranged coaxially on the first shaft and in series in an axial direction of the first shaft. Each of the four planetary gear sets has a single sun gear and a single ring gear. Further, the automatic transmission comprises an output wheel arranged coaxially on the first shaft, and capable of outputting torque transmitted from the engine through some of the four planetary gear sets. The output wheel is arranged between two of the four planetary gear sets. Accordingly, the noise or vibration from the planetary gear sets in the automatic transmission may be reduced, while the overall length of the first shaft may be made shorter, and the overall size of the automatic transmission may be made smaller.