Torque converter transmission device for smallvehicle

Abstract

In a transmission device in which an oil supply passage for supplying working oil to a torque converter where a turbine impeller, a pump impeller and a stator impeller are supported on a rotary shaft and an oil discharge passage which guides the working oil discharged from the torque converter extend in the axial direction of the rotary shaft and are mounted on the rotary shaft in a spaced-apart manner from each other, it is possible to suppress the flow resistance by ensuring a smooth flow of a working oil in front of and behind a torque converter thus contributing to the enhancement of the transmission efficiency of the torque converter and the increase of the degree of freedom in arrangement. [Means for Resolution] A torque converter 46 is provided to rotary shaft 15 in a state that a turbine impeller 57 is arranged on an oil supply passage 53 side and a pump impeller 58 is arranged on an oil discharge passage 54 side, and a supply-side inclined oil passage 101 which guides the working oil from an oil supply passage 53 to the pump impeller 7, and a discharge-side inclined oil passage 102 which guides the working oil discharged from the turbine impeller 57 to the oil discharge passage 54 are mounted on the rotary shaft 15 in a state that the supply-side inclined oil passage 101 and the discharge-side inclined oil passage 102 have axes which are inclined with respect to an axis of the rotary shaft 15. Fig.3.

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