| 摘要 |
PROBLEM TO BE SOLVED: To provide an oil passage structure to improve the pumbing property of the oil in/from a torque converter, and the strength and rigidity of an input shaft. SOLUTION: The oil passage 102 to pump the oil to/from the torque converter 30 is extended in the axial direction of the input shaft 20 between the shaft member 41 of a stator shaft 40 and a boss part 42a of a flange member 42, and an outer circumferential surface of a pump impeller boss member 31a is rotatably supported by a bearing 12. An end on a stator 33 side at the boss part 42a of the flange member 42 is extended closer to the stator 33 side than a bearing support part of the pump impeller boss member 31a in the axial direction on the inner circumferential surface side of the pump impeller boss member 31a, and oil passage openings 40b and 40c of the oil passage 102 are located closer to the stator 33 side than the bearing support part of the pump impeller boss member 31a in the axial direction.
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