A lock-up device for a torque converter is provided with a simple structure which reduces manufacturing costs, and which may reduce a size of the entire torque converter by minimizing an installation space of a dynamic damper.

A torque converter includes a cover assembly, an impeller assembly, a turbine assembly and a damper assembly. The impeller assembly includes an impeller shell drivingly connected with the cover assembly. The turbine assembly includes a shell with a clutch portion for selective driving engagement with the impeller shell. The damper assembly includes at least one cover plate, a flange for driving engagement with a transmission input shaft, and a first resilient element drivingly engaged with the at least one cover plate and the flange. The torque converter has a second resilient element for urging the turbine assembly away from the cover assembly.

A torque converter assembly is disclosed that includes a front cover, a clutch plate assembly, a pump cover, and a plate including a base body extending in an axial direction with a first flange on a first end and a second flange on a second end. The first flange can define a friction face configured to engage with a corresponding surface of the clutch plate assembly, and the second flange can define at least one opening configured to receive a fastening element. In one aspect, the plate functions or serves as a reaction plate for the clutch assembly, and also serves as a connection or lug for a flex plate or other component.

The present disclosure relates to a damping system for a hydraulic coupling device, comprising: an output hub having a central axis and a torus which surrounds the central axis, a first track being arranged in the torus; a plurality of turbine mass assemblies uniformly distributed around the central axis, each turbine mass assembly comprising a turbine section, each turbine section carrying a plurality of blades and being provided with a second track corresponding to the first track; a roller that can roll along a roller track defined by the first track and a corresponding second track, so that the turbine mass assembly can move relative to the output hub and exert torque on the output hub; wherein each turbine mass assembly further comprises a mass plate fixedly connected to the turbine section, the output hub being arranged between the mass plate and the turbine section. The invention relates to a hydraulic coupling device comprising the damping system and a motor vehicle comprising the hydraulic coupling device.

An apparatus and methods for a double coast engagement diaphragm spring for a torque converter are provided. The double coast engagement diaphragm spring includes first and second coast engagement diaphragm springs. The first coast engagement diaphragm spring exerts a first, continuous axial thrust onto a turbine comprising the torque converter. The second coast engagement diaphragm spring applies a second axial thrust onto the turbine only during coasting conditions. A drive flange includes ramps for engaging the second coast engagement diaphragm spring during coasting conditions and causing the second coast engagement diaphragm spring to apply the second axial thrust onto the turbine. A retainer plate disengages the second coast engagement diaphragm spring during drive conditions. A spacer ring between the first coast engagement diaphragm spring and the second coast engagement diaphragm spring causes the first and second coast engagement diaphragm springs to operate in series.

A torque converter includes a pump shell having pump blades; a turbine shell having a support portion supporting turbine blades, wherein the turbine blades are driven by the pump blades via a fluid to rotate about a rotational axis. The turbine shell further has a flange portion extending outward at the radially outside of the support portion and is integrally formed with the support portion. The torque converter further comprises a vibration damping device, the mass of which is mounted on the flange portion and configured to be movable relative to the flange portion and apply a torque to the turbine shell, thereby damping the torque vibration on the turbine shell. In addition, the invention also discloses a vehicle comprising the torque converter.

A torque fluctuation inhibiting device is disclosed. The torque fluctuation inhibiting device includes an input member, an elastic member, a mass body and a centrifugal element. The input member includes a pair of input plates disposed in axial alignment. The input member is disposed to be rotatable. The elastic member is held by the pair of input plates. The mass body is disposed to be rotated with the input member and be rotatable relative to the input member. The centrifugal element is disposed to be radially movable by a centrifugal force acting thereon in rotation of the input member. The centrifugal element is disposed between the pair of input plates.

The present invention relates to a lock-up device for a torque converter which has a simple structure compared to the prior art, which reduces manufacturing costs, and which may reduce a size of the entire torque converter and improve a damping ability of the dynamic damper by minimizing an installation space of a dynamic damper.

The invention relates to a torque transmitting device comprising a torque input element (17a, 17b) and a torque output element (8) able to pivot about a shaft (X) with respect to one another, at least one elastic leaf (22), rotationally coupled to the torque output element (8) or to the torque input element (17a, 17b) respectively, the elastic leaf (22) being able to be elastically and radially supported by a supporting member (18) carried by the torque input element (17a, 17b) or the torque output element (8) respectively, the elastic leaf (22) being able to bend upon rotation of the torque input element (17a, 17b) with respect to the torque output element (8).

The invention relates to a torque transmission device, more particularly for a motor vehicle, comprising a torque input element (15, 17) and a torque output element (8) able to pivot about an axis (X) with respect to one another, at least one elastic leaf (22), rotationally coupled to the torque output element (8) or to the torque input element (15, 17) respectively, the elastic leaf (22) being able to be elastically and radially held to rest on a supporting member (18) carried by the torque input element (15, 17) or the torque output element (8) respectively, the elastic leaf (22) being able to bend upon rotation of the torque input element (15, 17) with respect to the torque input element (8).