A torque converter assembly includes an input plate connectable to a powerplant, a torque converter, and a disconnect clutch external to the torque converter and configured to selectively couple the input plate to the torque converter. The torque converter includes a cover having an outer surface and at least one fluid hole extending through the cover. The disconnect clutch is actuated by pressurized fluid via the fluid hole.

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.

A torque converter comprises a cover configured to receive an input torque and an impeller having an impeller shell non-rotatably connected to the cover. A piston is disposed axially between the cover and the impeller. The piston is configured to axially displace to selectively engage a clutch and a seal plate is disposed axially between the piston and the cover. The seal plate is sealed to the cover. A first chamber is formed at least in part by the cover, the seal plate, and the piston. A second chamber is formed at least in part by the piston and the impeller shell.

A torque converter for a vehicle including a front cover; an impeller which is coupled to the front cover and rotates together with the front cover; a turbine which is disposed at a position facing the impeller; a reactor which is positioned between the impeller and the turbine and changes a flow of oil flowing from the turbine to the impeller; a lock-up clutch which has a piston that directly connects the front cover and the turbine; and a torsional damper which includes a pair of retaining plates that receives driving power of an engine from the turbine or the lock-up clutch, and a driven plate that is disposed between the retaining plates, the torsional damper being coupled to the lock-up clutch and absorbing impact and vibration applied in a rotation direction.

A torque transmission assembly including a hydrodynamic torque convener able to be coupled to a crankshaft on the one hand, and able to be coupled to a gearbox input shaft on the other, the torque converter including a primary element and a secondary element which are rotationally mobile about an axis of rotation, and damping means including a transmission member and a bearing element, the transmission member including an elastic leaf rotating as one with the primary element or with the secondary element, and the bearing element being home by the secondary element or by the primary element respectively, the elastic leaf being capable of flexing and of transmitting a rotational torque between the primary element and the secondary clement, the flexing of the elastic leaf being accompanied by a relative rotation between the primary and secondary elements.

A housing for a torque converter comprising: an axis of rotation; a cover including: a first inner surface; a first outer surface opposite the first inner surface; a first axially extending necked portion radially outward relative to the axis of rotation and parallel to the axis of rotation, an impeller shell non-rotatably connected to the cover and having: a second inner surface; a second outer surface opposite the second inner surface; a second axially extending necked portion radially outward relative to the first axially extending necked portion; a line orthogonal to the axis of rotation passes through the first and second axially extending necked portions; and, a weld fixedly securing the first inner surface to the second inner surface at at least one point on the line. A torque converter including such a housing closure is also described.

A torque converter includes first and second dampers disposed in a torque transmission path during lockup, and a dynamic damper attached to the torque transmission path between the first and second dampers. The dynamic damper includes an inertial rotating body having a weight member mounted on an outer peripheral part of an inertia plate sandwiched between a pair of retaining plates and an elastic member provided between the inertia plate and the retaining plates. A claw part is provided on one of the retaining plates disposed on a side opposite to the clutch constituent member with respect to the inertia plate. The first damper spring is sandwiched between the claw part and the clutch constituent member, and an elongated hole is formed in the inertia plate, the elongated hole extending lengthwise in a peripheral direction of the inertia plate while the claw part is inserted through the elongated hole.

A vibration damping apparatus includes a support member configured to rotate together with a rotational element, a restoration force generating member coupled to the support member so as to transmit and receive a torque with the support member, an inertial mass coupled to the support member via the restoration force generating member, a first guide surface provided on the restoration force generating member, a second guide surface provided on the inertial mass, and a coupling member having first and second rolling portions. The first and second guide surfaces are formed so that the first rolling portion rolls along the first guide surface and the second rolling portion rolls along the second guide surface along with rotation of the support member to cause the restoration force generating member to swing relative to a rotation center of the rotational element along a radial direction of the support member and cause the inertial mass to swing about the rotation center.

A hybrid assembly, including: a torque converter; a shaft; a hybrid module; and a module hub. The torque converter includes: a cover; an impeller; a turbine; a stator; and an output hub arranged to non-rotatably connect to a transmission input shaft. The shaft is arranged to receive torque and includes a channel. The hybrid module includes: an electric motor including a stator and a rotor non-rotatably connected to the cover; and a transfer clutch arranged to control transmission of the torque from the shaft to the cover. The hub is non-rotatably connected to the cover and includes a channel: connected to the torque converter; and arranged to receive first pressurized fluid from a first channel in the transmission input shaft. The channel of the shaft is arranged to receive second pressurized fluid, from a second channel in the transmission input shaft, to control operation of the transfer clutch.

A front cover assembly is disclosed. The front cover assembly includes a front cover body having a disc shape and a hub having a tubular shape. The front cover body includes a tubular portion in a center part thereof. The tubular portion is closed at one end thereof. The hub includes an engaging portion integrated with at least part of an outer peripheral surface thereof. The hub includes a coupling portion configured to extract power on an inner peripheral surface thereof. The engaging portion is press-fitted to the tubular portion of the front cover body.