Patent ID: 9316273
Filing Date: 2016-04-19
CPC Classification: F16D,F16F,F16H

Claim Text:
1. A torque converter comprising: a casing coupled to an output shaft of an engine; a pump disposed within the casing and adapted to be rotated integrally with the casing; a turbine disposed opposed to the pump from a side of the engine with respect to the pump; a stator disposed between the pump and the turbine; a multi-plate lockup clutch adapted to directly couple the turbine and the casing; and a lockup damper adapted to absorb shock during engagement of the lockup clutch, wherein the pump, the turbine and the stator define a torus which serves as a fluid working section for causing fluid within the casing to circulate therearound, and wherein the turbine includes a turbine shell and a plurality of blades provided on an inner surface of an outer peripheral portion of the turbine shell, a part of the outer peripheral portion of the turbine shell being convexly curved toward the engine and being a widest region of the turbine shell, the lockup clutch and the lockup damper being arranged laterally within a space between the torus and a surface of the casing on the side of the engine, the lockup clutch being entirely disposed on a radially inner side with respect to the widest region of the turbine shell where an axial dimension of the torus becomes largest, and the lockup damper being entirely disposed on a radially outer side with respect to the widest region of the turbine shell, and friction plates of the lockup clutch and the lockup damper being respectively disposed adjacent to the turbine in an axial direction in such a manner that a part of the lockup clutch and the part of the outer peripheral portion of the turbine shell corresponding to the widest region being disposed to overlap with each other in an imaginary plane oriented perpendicular to a rotational axis of the lockup clutch.