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:
Apr. 09, 2013
Filed:
Jun. 13, 2011
Kazuaki Aota, Sagamihara, JP;
Yukiyoshi Inuta, Isehara, JP;
Akihiro Yamamoto, Hiratsuka, JP;
Takayuki Okuda, Atsugi, JP;
Joerg Mueller, Chemnitz, DE;
Rico Resch, Chemnitz, DE;
Mirko Leesch, Thum, DE;
Kazuaki Aota, Sagamihara, JP;
Yukiyoshi Inuta, Isehara, JP;
Akihiro Yamamoto, Hiratsuka, JP;
Takayuki Okuda, Atsugi, JP;
Joerg Mueller, Chemnitz, DE;
Rico Resch, Chemnitz, DE;
Mirko Leesch, Thum, DE;
Jatco Ltd, Fuji-shi, JP;
Abstract
An automatic transmission including a double pinion planetary gear unit PG, two single pinion planetary gear units PGand PGand six frictional elements (viz., six clutches) Cto Cis so constructed as to establish nine forward speeds and one reverse speed by simultaneously putting selected three of the six frictional elements Cto Cinto their engaged condition. The frictional elements Cto Care of a type including mutually rotatable friction plates that cause production of an oil dragging resistance when the frictional element is under idling condition. With the simultaneously engaged condition of the three frictional elements, each speed is established with a reduced friction loss of the automatic transmission.