Automatikgetriebe mit Kupplungsvorrichtungen

摘要

An automatic transmission including a first clutch selectively connecting a first rotary member and a second rotary member disposed coaxially with the first rotary member, a second clutch selectively connecting the first rotary member and a third rotary member disposed coaxially with the first rotary member, a first drum in which a first piston of the first clutch is axially slidably received, a second drum disposed coaxially with the first drum, to accommodate the first drum, and in which a second piston of the second clutch is axially slidably received, an abutting portion abutting contact of the first and second drums with each other in an axial direction of the first and second drums, and a fitting portion at which the first drum is fitted in the second drum and that inhibits relative rotation of the first and second drums about a common axis of the first and second drums.