Title:
AUTOMATIC TRANSMISSION
Document Type and Number:
Japanese Patent JP2015086894
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an automatic transmission having four gear sets and three clutches, and having a more simple oil-pressure-supply oil passage for each clutch for downsizing the automatic transmission in the axial direction and preventing the transmission from having a larger size and being deteriorated in responsiveness of shift change control.SOLUTION: In an automatic transmission, outer rotation members of first, second, and third clutches CL1, CL2, CL3 are integrated and engaged with a second sun gear S2. An inner rotation member of the first clutch is engaged with a third ring gear R3. An inner rotation member of the second clutch is engaged with a third sun gear S3 and a fourth ring gear R4. An inner rotation member of the third clutch is engaged with an input member 12 and a fourth carrier C4. Third and fourth gear sets PG3, PG4 are arranged in an opposite drive source side, and the fourth gear set PG4 is located in an inner periphery side of the third gear set PG3. The four ring gear R4 and the third sun gear S3 are integrated.
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Inventors:
IWASAKI TATSUHIKO
KAMATA SHINYA
OGAUCHI YASUHIRO
NAKAGISHI MASARU
KAMATA SHINYA
OGAUCHI YASUHIRO
NAKAGISHI MASARU
Application Number:
JP2013223554A
Publication Date:
May 07, 2015
Filing Date:
October 28, 2013
Export Citation:
Assignee:
MAZDA MOTOR
International Classes:
F16H3/66
Domestic Patent References:
| JP2011080589A | 2011-04-21 |
Foreign References:
| WO2013146032A1 | 2013-10-03 | |||
| US20090247343A1 | 2009-10-01 |
Attorney, Agent or Firm:
Takuji Yamada
Mitsuo Tanaka
Fukuoka Masaaki
Mitsuo Tanaka
Fukuoka Masaaki