| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an automatic transmission that improves sound vibration performance of an output member, and reduces cost, while preventing a control valve body and a common carrier from being enlarged. <P>SOLUTION: A 4-speed forward and 1-speed reverse transmission is attained by simultaneously fastening two of five frictional fastening elements 13R/C, 234/C, 12/B, 4/B and R/B, by using a Ravigneaux type planetary gear PGU and the five frictional fastening elements 13R/C, 234/C, 12/B, 4/B and R/B. This automatic transmission directly supports an output gear OUT by a cylinder part 30a of an oil pump housing 30. The five frictional fastening elements 13R/C, 234/C, 12/B, 4/B and R/B are collectively arranged on the rear side of the output gear OUT. A first hub member 31 and a second hub member 32 are connected to a front carrier plate 23 and a rear carrier plate 24 arranged in both end parts of the common carrier C. <P>COPYRIGHT: (C)2013,JPO&INPIT |
