A torque transmission device active between a drive side and an output side is disclosed. The torque transmission device comprises a torque converter that has a housing in which a pump, a turbine, and a lock-up clutch for transmission of a torque are arranged between the drive side and the output side. The lock-up clutch has a clutch input coupled to the housing, a clutch output which is rotatable with respect thereto, and an actuating element for actuating the lock-up clutch. The turbine is axially displaceable together with the actuating element, and the turbine is rotatable with respect to the clutch output.

A stator for a torque converter includes a body portion with a first frusto-conical surface, a flange including a second frusto-conical surface, a stator clutch including the first and second frusto-conical surfaces, and at least one clutch plate disposed therebetween. In some example embodiments, the at least one clutch plate comprises a pair of frusto-conical surfaces. In an example embodiment, at least one of the at least one clutch plate frusto-conical surfaces includes a friction material bonded thereto. In an example embodiment, the body portion or the flange includes a first drive tab and the at least one clutch plate includes a second drive tab drivingly engaged with the first drive tab.

A hydrodynamic coupling arrangement (1), comprising an impeller (6) linkable to a drive shaft, a turbine (7) linkable to a driven shaft via a hub (11) and able to hydrodynamically coupled with the impeller (6), a lockup clutch (20) able to short-circuited the hydrodynamically coupling between the impeller (6) and the turbine (7), a torsional vibration damper arrangement (13;14,15) located between the lockup clutch (20) and the hub (11), said torsional vibration damper arrangement comprising an input element (16;17,47,24), an output element (17; 25,33,32) and a plurality of elastic elements (22;26) disposed between the input element and the output element, the output element of the torsional vibration damper arrangement forms a part of the hub, wherein the coupling arrangement comprises an absorber device (29) being linked in rotation to the hub, said absorber device comprising a unique resonance frequency.

A lock-up device includes a clutch part, an input plate, an outer peripheral side damper part, an output plate, an inner peripheral side damper part, and an intermediate member. The outer peripheral side damper part includes at least two outer peripheral side springs. The outer peripheral side springs are disposed in a circumferential alignment, act in series, and take circular-arc shapes when in a free state. The inner peripheral side damper part includes at least two inner peripheral side springs. The inner peripheral side springs are disposed in a circumferential alignment on an inner peripheral side of the outer peripheral side damper part, and act in series. The intermediate member is rotatable relatively to the input plate and the output plate, and makes the outer peripheral side damper part and the inner peripheral side damper part act in series.

A damper assembly for a torque converter is provided. The damper assembly includes a first cover plate including a spring retainer at a radial outer end of the first cover plate supporting springs; and a second cover plate including, at a radial outer end thereof, tabs for the springs, the tabs being in circumferential spaces between the springs The spring retainer and the tabs are fixed together inside the spring retainer. A method of forming a damper assembly is also provided. The method includes fixing a spring retainer at a radial outer end of a first cover plate to tabs at a radially outer end of a second cover plate inside the spring retainer. The tabs are in circumferential spaces between springs retained by the spring retainer.

A hydrokinetic torque coupling device features a casing comprising a casing shell and an impeller shell, an impeller, a turbine-piston, a damper assembly comprising a drive member non-moveably connected to the turbine-piston and a driven member elastically coupled to the drive member, and a clutch member comprising a clutch plate and a connecting member extending through the damper assembly and non-moveably interconnecting the clutch plate with the turbine-piston. The clutch plate has an axially outer surface facing an engagement surface of the casing. The turbine-piston is axially displaceable relative to the casing to move the clutch member axially toward and away from the engagement surface of the casing for positioning the hydrokinetic torque coupling device into and out of a lockup mode in which the clutch member and the casing frictionally interlock with one another so that the casing is non-rotatable relative to the turbine-piston.

A torque converter is provided. The torque converter, or torque converter assembly, operatively connects a primary mover and a transmission, and includes an input rotationally connected to the primary mover and an output rotationally connected to the transmission. The torque converter includes a fluid coupling having impeller blades and turbine blades. The fluid coupling transfers torque between the impeller blades and the turbine blades when the input and the output are rotating at different speeds. A mini damper is disposed in line with the fluid coupling between the input and the output. A torque converter clutch is configured to selectively slip or selectively lock, such that torque may be transferred directly between the input and the output. A primary damper is disposed between the input and the output.

A clutch plate assembly includes a central axis, a clutch plate with a first friction surface and a radially outer depressed portion, and a friction material ring. The friction material ring is bonded to the first friction surface and extends radially outside of the first friction surface such that an outer portion of the friction material ring is axially aligned with the clutch plate radially outer depressed portion. In an example embodiment, the first friction surface is disposed at an acute angle to a plane orthogonal to the central axis. In some example embodiments, the first friction surface is conical. In an example embodiment, the radially outer depressed portion is conical and axially offset from the first friction surface. In an example embodiment, the radially outer depressed portion is manufactured by machining, stamping, or coining.

A torque converter, including: a cover arranged to receive torque; an impeller including an impeller shell non-rotatably connected to the cover and at least one impeller blade connected to the impeller shell; a turbine including a turbine shell, at least one turbine blade connected to the turbine shell, and a heat treated portion; and a torsional vibration damper including: a cover plate arranged to receive torque from the cover or the turbine; and a spring. The spring is engaged with the cover plate and is arranged to contact the heat treated portion when the spring is compressed.

The invention relates to a hydrokinetic torque coupling device for a motor vehicle, comprising a torque input element (11) intended to be coupled to a crankshaft (1), an impeller wheel (3) rotationally coupled to the torque input element (11) and able to hydrokinetically drive a turbine wheel (4) through a reactor (5), a torque output element (8) intended to be coupled to a transmission input shaft (2), clutch means (10) able to rotationally couple the torque input element (11) and the torque output element (8) in an engaged position, through damping means (21, 25) and able to rotationally uncouple the torque input element (11) and the torque output element (8) in a disengaged position.