| 摘要 |
The invention provides a power train mechanism capable of decreasing a rotational resistance. The power train mechanism includes: a clutch drum (140); a forced feed oil passage (121) and a central oil passage (122) for supplying oil to the clutch drum (140); an oil reservoir (160) provided below the clutch drum (140); an outer circumferential surface surrounding member (110) for surrounding an outer circumferential surface (143) of the clutch drum (140), while facing the outer circumferential surface (143) with a clearance therebetween to such a degree as to avoid contact with the outer circumferential surface (143) during rotation of the outer circumferential surface (143) of the clutch drum (140); and a trans-axle rear cover (100) provided continuously to the outer circumferential surface surrounding member (110), for surrounding axial one end surface (145) of the clutch drum (140), in which a side of the outer circumferential surface surrounding member (110) axially opposite to the trans-axle rear cover (100) is an open end (111). |
