A torsional vibration damper that can be arranged in a fluid coupling to downsize a powertrain is provided. The torsional vibration damper has a mass body held in a rotary member in such a manner to be oscillated by torque pulse of the rotary member. The rotary member is arranged in an internal space of a fluid coupling in which a pump impeller, a turbine runner and a predetermined stationary member are held in a casing. A planetary unit that performs a differential action among three rotary elements is arranged in the casing. In the planetary unit, a first rotary element is connected to the stationary member, a second rotary element is connected to the rotary member, and a third rotary element is connected to the turbine runner.

Disclosed is a hydrokinetic torque converter (TC) with a TC housing. An impeller is disposed within the TC housing and connects to an engine output shaft. A turbine is disposed within the TC housing and connects to a transmission input shaft via a TC output shaft. A torque converter clutch (TCC), which is disposed within the TC housing and coupled to the TC output shaft, selectively locks the impeller to the TC output shaft. A damper, which is disposed within the TC housing and coupled to the TCC, dampens vibrations transmitted by the TCC. A disconnect device, which is disposed within the TC housing and coupled to the damper assembly and TC output shaft, connects the turbine to the TC output shaft or damper when positive torque is being transferred, and disconnects the turbine and TC output shaft or damper when negative torque is being transferred.

A torque converter, including an impeller including an impeller shell with an inner surface, an outer surface facing opposite the inner surface, a first radial portion substantially orthogonal to an axis of rotation for the torque converter, and an axial portion substantially parallel to the axis, extending from the radial portion, forming a radially outmost portion of the impeller shell, and having a first thickness. The shell includes a curved portion including a first protrusion, second and third protrusions radially inward of the first protrusion, a first portion between the radial portion and the first protrusion, and a junction portion connecting the radial portion and the first portion and having a second thickness at least 50 percent greater than the first thickness.

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 strut for a rocker one-way clutch comprising: a body having: a center point; an outer circumferential edge having a first radius with respect to the center point; and, an inner circumferential edge having a second radius with respect to the center point; and, a retention segment having: a neck portion directly connected to the body and extending from the body in a first direction; and, a spring retention portion extending from the neck portion. Also discloses is a rocker one-way clutch comprising: an axis of rotation; an outer race including at least one pocket; an inner race; a strut as above, wherein the body is at least partially locatable in the pocket.

A strut for a rocker one-way clutch comprising: a body having: a center point; an outer circumferential edge having a first radius with respect to the center point; and, an inner circumferential edge having a second radius with respect to the center point; and, a retention segment having: a neck portion directly connected to the body and extending from the body in a first direction; and, a spring retention portion extending from the neck portion. Also discloses is a rocker one-way clutch comprising: an axis of rotation; an outer race including at least one pocket; an inner race; a strut as above, wherein the body is at least partially locatable in the pocket.

A transmission arrangement including a torque converter, a first shaft fixed to rotate with a turbine of the torque converter about an axis, a second shaft fixed to rotate with a casing of the torque converter about said axis, a gear mounted on the first shaft and being fixed to rotate with the first shaft and a clutch selectively engageable to cause the first shaft to be fixed to rotate with the second shaft and being selectively disengageable to allow the first shaft to rotate relative to the second shaft, the clutch being rotatable about said axis.

A transmission arrangement including a torque converter, a first shaft fixed to rotate with a turbine of the torque converter about an axis, a second shaft fixed to rotate with a casing of the torque converter about said axis, a gear mounted on the first shaft and being fixed to rotate with the first shaft and a clutch selectively engageable to cause the first shaft to be fixed to rotate with the second shaft and being selectively disengageable to allow the first shaft to rotate relative to the second shaft, the clutch being rotatable about said axis.

A modular stator for a torque converter includes a stator hub, an outer ring, and a plurality of blades extending radially between the stator hub and the outer ring. Each blade is releasably securable to the stator hub in at least two different orientations. A blade angle of the plurality of blades can be predetermined by selecting one of the at least two orientations. A lock member secures each blade at the selected orientation.

A torque converter for transferring torque from an input shaft to an output shaft, having a turbine wheel, an impeller connected to the input shaft to drive the turbine wheel hydrodynamically, a centrifugal force pendulum connected to the turbine wheel to damp torsional vibrations, a first torsion damper to drive the output shaft by means of the turbine wheel, and a converter clutch and a second torsion damper for selective torsionally damped coupling of the input shaft with the turbine wheel. One of the torsion dampers in this case includes two torsion damper elements, which are arranged in series with each other.