Hydrokinetic torque coupling device for a motor vehicle

A hydrokinetic torque coupling device for a motor vehicle, comprising:

• a torque input element (11) intended to be coupled to a crankshaft (1);
• a turbine wheel (4);
• an impeller wheel (3) rotationally coupled to the torque input element (11) and able to hydrokinetically drive the turbine wheel (4);
• a torque output element (8) intended to be coupled to a transmission input shaft (2);
• damping means (23, 27);
• clutch means (10) movable between an engaged position wherein the torque input element (11) and the torque output element (8) are rotationally coupled through the damping means (23, 27), and a disengaged position wherein the torque input element (11) and the torque output element (8) are rotationally coupled through the impeller wheel (3), the turbine wheel and the damping means (23, 27);
• the damping means (23, 27) adapted to act against the rotation of the torque input element (11) relative to the torque output element (8), the damping means (23, 27) comprising an elastic blade (27) elastically supported by a supporting member (23), the elastic blade (27) being able to bend upon rotation of the torque input element (11) relative to the torque output element (8) in the engaged position, the elastic blade transmitting torque through the damping means;
• the hydrokinetic torque coupling device further comprising a single flange (15) connecting the turbine wheel (4) and the supporting member (23), the elastic blade being connected to the torque output element (8);
• the clutch means (10) comprising at least one piston (33) rotationally coupled to the flange (15), the piston (33) moveable relative to the flange (15) between the engaged position wherein the piston is rotationally coupled to the torque input element (11) and the disengaged position wherein the piston is rotationally uncoupled from the torque input element (11).

A hydrokinetic torque coupling device for a motor vehicle, comprising:

• a torque input element (11) intended to be coupled to a crankshaft (1);
• a turbine wheel (4);
• an impeller wheel (3) rotationally coupled to the torque input element (11) and able to hydrokinetically drive the turbine wheel (4);
• a torque output element (8) intended to be coupled to a transmission input shaft (2);
• damping means (23, 27);
• clutch means (10) movable between an engaged position wherein the torque input element (11) and the torque output element (8) are rotationally coupled through the damping means (23, 27), and a disengaged position wherein the torque input element (11) and the torque output element (8) are rotationally coupled through the impeller wheel (3), the turbine wheel and the damping means (23, 27);
• the damping means (23, 27) adapted to act against the rotation of the torque input element (11) relative to the torque output element (8), the damping means (23, 27) comprising an elastic blade (27) elastically supported by a supporting member (23), the elastic blade (27) being able to bend upon rotation of the torque input element (11) relative to the torque output element (8) in the engaged position, the elastic blade transmitting torque through the damping means;
• the hydrokinetic torque coupling device further comprising a single flange (15) connecting the turbine wheel (4) and the supporting member (23), the elastic blade being connected to the torque output element (8);
• the elastic blade (27) connected to the torque output element (8) through a linking member (30).

A hydrokinetic torque coupling device for a motor vehicle, comprising

• a torque input element (11) intended to be coupled to a crankshaft (1),
• a turbine wheel (4),
• an impeller wheel (3) rotationally coupled to the torque input element (11) and able to hydrokinetically drive the turbine wheel (4),
• a torque output element (8) intended to be coupled to a transmission input shaft (2),
• damping means (23, 27),
• clutch means (10) movable between an engaged position wherein the torque input element (11) and the torque output element (8) which are rotationally coupled through damping means (23, 27), and a disengaged position wherein the torque input element (11) and the torque output element (8) are rotationally coupled through the impeller wheel (3), the turbine wheel and the damping means (23, 27), with the damping means (23, 27), being adapted to act against the rotation of the torque input element (11) relative to the torque output element (8), with the damping means (23, 27) comprising an elastic blade (27) elastically supported by a supporting member (23), with the elastic blade (27) being able to bend upon rotation of the torque input element (11) relative to the torque output element (8) in an engaged position, the elastic blade transmitting torque through the damping means, with the hydrokinetic torque coupling device further comprising a single flange (15) connecting the turbine wheel (4) and the elastic blade, the supporting member being connected to the torque output element (8).