Patent ID: 6938743

Claim:
Hydrokinetic coupling apparatus { 10 ) with an axis of rotation X—X for motor vehicles, comprising: a casing ( 1 , 2 ) formed by a first shell ( 1 ) and intended to rotationally connect a driving shaft (A 1 ) and an impeller wheel ( 11 ); a turbine wheel ( 12 ) rotationally fixed, through a connection without clearance by axial rivets ( 42 ), to a turbine hub ( 14 ) which is able to be rotationally connected to a driven shaft (A 2 ) by means of an input element ( 21 , 23 ) of a damping device ( 20 ) whose output element ( 25 , 27 ) is rotationally fixed to said driven shaft (A 2 ); a clutch ( 30 ) for locking the coupling of the driving and driven shafts, acting between the turbine wheel ( 12 ) and a second shell ( 2 ) of the casing, and comprising an axially movable piston ( 32 ) to clamp at least one friction disc ( 34 ) rotationally fixed on the one hand to the second shell ( 2 ) of the casing by means of a first connecting piece ( 36 ) and on the other hand to the damping device ( 20 ) by means of a second connecting piece ( 38 ); the damping device ( 20 ) comprising circumferentially acting elastic members ( 26 ) interposed between two guidance washers ( 21 , 23 ) forming the input element and a damper plate ( 25 ) which is fixed to a hub ( 27 ) of the damping device ( 20 ) forming the output element, the input and output elements being rotationally connected with a capacity for angular movement which is limited by stop means ( 40 ), wherein bearing means ( 80 ) are axially interposed between turbine hub ( 14 ) and a hub of a reaction wheel ( 13 ), and wherein the turbine hub ( 14 ) and one of the guidance washers ( 21 ) are formed as a single homogenous element.