A torque converter includes a front cover arranged to receive a torque. The torque converter further includes a lock-up clutch engaged with the front cover and including a clutch plate. The torque converter further includes a damper assembly engageable with the lock-up clutch. The damper assembly includes a cover plate defining a spring retainer extending about an axis. The damper assembly further includes a spring disposed in the spring retainer. The damper assembly further includes a spring support plate fixed to the cover plate. The spring support plate includes inner tabs and outer tabs disposed radially outside of the inner tabs. The outer tabs are configured to radially constrain the spring in the spring retainer. The inner tabs are configured to position the clutch plate relative to the axis.

In a power transmission device, a dynamic damper is provided in a power transmission path having at least one damper disposed therein, and has an inertial rotating body that can rotate relative to a transmission rotating member forming part of the power transmission path, and a dynamic damper spring that can provide connection between the transmission rotating member and the inertial rotating body. A preset load is applied to the dynamic damper spring in a non-transmitting state of the power transmission path. The dynamic damper spring is supported on either one of the transmission rotating member and the inertial rotating body so as to apply the preset load to the dynamic damper spring in the non-transmitting state, and a gap is set in a rotational direction in the non-transmitting state between the dynamic damper spring and an other one of the transmission rotating member and the inertial rotating body.

A hydrodynamic torque converter (1) with a pump wheel (3) and with a turbine wheel (4), and with a torsion damper (8) and with an intermediate space (12) located between the turbine wheel (4) and the torsion damper (8), and with a torus formed by the pump wheel (3) and the turbine wheel (4) for hydraulic fluid. A flow-guiding wall (14) is provided, which deflects a radially outward flow of hydraulic fluid coming from the torus, back radially inward to the intermediate space (12).

A hydrodynamic torque converter (1) with a bridging clutch (6) and with a torsion damper (8), and with a piston (7) and with an intermediate space (9) between the piston (7) and the torsion damper (8). The piston (7) serves to actuate the bridging clutch (6). The torsion damper has a torsion damper wall (85) via which hydraulic fluid, flowing into the intermediate space (9), is guided toward the bridging clutch (6).

A torque converter includes a front cover arranged to receive a torque and an impeller having an impeller shell non-rotatably connected to the front cover. A turbine is fluidly coupled to the impeller and includes a turbine shell. A lock-up clutch is provided that includes a piston configured to axially displace to engage and disengage the lock-up clutch; a first clutch plate and a second clutch plate connected to each other, the first and second clutch plates being disposed between the piston and front cover; and a flexible clutch plate disposed axially between the first and the second clutch plates and connected to the piston.

A hydrodynamic torque converter is provided with a converter housing and a converter torus with a pump impeller, a turbine wheel which is driven hydrodynamically by the pump impeller by a converter fluid. In order to bridge the hydrodynamic drive, a converter lock-up clutch which is connected between the pump impeller and the turbine wheel by pressure loading of the converter fluid is arranged radially between an outer circumference of the converter housing and the converter torus. In order to provide the converter lock-up clutch with an increased transmission capacity, the turbine wheel is assigned at least one friction disc which can be prestressed axially between a pressure-loaded annular piston, which is hooked in an axially movable manner into the converter housing, and a mating friction surface of a converter housing section radially outside the converter torus.

A damper assembly for a torque converter includes: an input flange; a cover plate; an intermediate flange; a hub flange; a first spring; and second spring; and a third spring. The input flange is arranged to receive a torque. The cover plate is connected to the input flange. The intermediate flange is axially spaced from the input flange and is connected to the cover plate radially outside of the input flange. The hub flange is disposed axially between the intermediate flange and the cover plate and is arranged to connect to a transmission input shaft. The first spring is arranged to be compressed by the input flange and the cover plate. The second spring is arranged to be compressed by the cover plate and the intermediate flange. The third spring is arranged to be compressed by the intermediate flange and the hub flange.

A hydrodynamic torque converter (1) with a lock-up clutch (6) in a clutch space, (9) and with a piston (7) for activating of the lock-up clutch (6). The piston (7) separates the clutch space (9) from a piston chamber (10). The piston (7), via the application of pressure, can be moved, from a starting position in which the lock-up clutch (6) is disengaged, in the engaging direction of the lock-up clutch (6). The piston (7) has at least a closable opening (11) through which hydraulic fluid can flow from the piston chamber (10) into the clutch space (9). The opening (11) is open if either the piston (7) is away from the starting position and/or if a fluid pressure in the piston chamber (10), compared to the clutch space (9), is elevated. The closing element (12, 13) is tongue-shaped element which serves closing and opening of the opening (11).

A hydrodynamic torque converter (1) with a pump wheel (3) and with a turbine wheel (4), and with a torsion damper (8) and with an intermediate space (12) located between the turbine wheel (4) and the torsion damper (8), and with a torus formed by the pump wheel (3) and the turbine wheel (4) for hydraulic fluid. A flow-guiding wall (14) is provided, which deflects a radially outward flow of hydraulic fluid coming from the torus, back radially inward to the intermediate space (12).

A torque converter comprising a cover arranged to receive torque, an impeller having an impeller shell non-rotatably connected to the cover, and a turbine in fluid communication with the impeller and including a turbine shell is provided. In embodiments, the torque converter includes a lock-up clutch including a piston plate, an output hub connected to the turbine shell and arranged to non-rotatably connect to a transmission input shaft, and a seal plate disposed, at least partially, axially between the piston plate and the turbine shell, wherein the seal plate is connected to the cover and the piston plate. A flow plate may be connected to the seal plate and disposed axially between the seal plate and the turbine shell. A through-bore may be bounded in first and second opposite radial directions by the seal plate.