| 摘要 |
PROBLEM TO BE SOLVED: To suppress inclination of a torque converter.SOLUTION: A driving device for a vehicle has a torque converter 30 including a crank shaft 15 rotatably disposed on an engine, and having a plurality of crank pins supporting a connecting rod 21, a pump shell 33 opposed to the crank shaft 15, and a pump impeller 40 disposed on the pump shell 33, and a drive plate 31 disposed between the crank shaft 15 and the pump shell 33 and connecting the crank shaft 15 and the pump shell 33. The crank pin disposed at a torque converter 30 side, of the plurality of crank pins is a reference crank pin P4, and the blade shape of the pump impeller 40 positioned at a phase side same as the reference crank pin P4 and the blade shape of the pump impeller 40 positioned at a phase side opposite to the reference crank pin P4 are different from each other.SELECTED DRAWING: Figure 17 |
