Abstract: A damper assembly including a cover having at least one aperture therein, a flange operatively connected to the cover, and a spring having at least one leg engaged with a radially outer surface of the flange, the spring having at least one post engaged in the aperture of the cover, wherein engaging the post in the aperture preloads the spring against the radially outer surface of the flange for exerting a force on the damper.

Abstract: A hysteresis assembly, including: first, second, and third plates; at least one fastener connecting the first and third plates; and, at least one resilient element. The resilient element is: disposed between the first and second plates; disposed about the fastener; and arranged to urge the second plate into frictional contact with the third plate. A damper assembly, including: first and second cover plates arranged to receive torque; a flange axially disposed between the cover plates; at least one first resilient element engaged with the cover plates and the flange and arranged to transmit the torque to the flange; at least one fastener connecting the cover plates and passing through the flange; and at least one second resilient element. The resilient element is: disposed between the first cover plate and the flange; disposed about the fastener; and arranged to urge the flange into frictional contact with the second cover plate.

Abstract: A torque converter, including: a turbine with a turbine shell; and a damper assembly including: an output flange; a first cover plate; a first drive plate fixedly secured to the turbine shell; a first plurality of springs engaged with the first cover plate; a second plurality of springs engaged with the first cover plate and the output flange; a third plurality of springs engaged with the first cover plate and the first drive plate; and a single torque path from the turbine shell to the damper assembly, the single torque path formed by the first drive plate.

Abstract: A torque converter damper, including: an output hub; a first side plate arranged for rotational connection to a lock-up clutch and a turbine of the torque converter. Includes first and second intermediate flange plates; a flange connected to the output hub; springs engaged with the first side plate and the intermediate flange plates; springs engaged with the intermediate flange plates and with the flange; and a resilient element creating frictional contact between first and second components of the torque converter damper. Relative rotation of the first and second components at the frictional contact attenuates vibration at the output hub. The first and second components are rotatable with respect to each other. Rotation of the first component is fixed to rotation of the hub. Rotation of the second component is arranged to be fixed to rotation of the turbine. The hub is arranged to be rotatable with respect to the turbine.

Abstract: A clutch and damper assembly for a torque converter includes a clutch piston with a piston friction surface for engaging the clutch and an outer sealing diameter, and a damper. The piston friction surface is disposed radially inward of the damper and the outer sealing diameter is disposed radially outward of the damper. In an example embodiment, the clutch piston includes an inner sealing diameter disposed radially inward of the piston friction surface. In some example embodiments, the damper includes a resilient element and a drive plate. The drive plate is drivingly engaged with the resilient element and frictionally engageable with the clutch piston.

Abstract: A hysteresis assembly, including: first, second, and third plates; at least one fastener connecting the first and third plates; and, at least one resilient element. The resilient element is: disposed between the first and second plates; disposed about the fastener; and arranged to urge the second plate into frictional contact with the third plate. A damper assembly, including: first and second cover plates arranged to receive torque; a flange axially disposed between the cover plates; at least one first resilient element engaged with the cover plates and the flange and arranged to transmit the torque to the flange; at least one fastener connecting the cover plates and passing through the flange; and at least one second resilient element. The resilient element is: disposed between the first cover plate and the flange; disposed about the fastener; and arranged to urge the flange into frictional contact with the second cover plate.

Abstract: A torsional vibration damper with a friction device. The friction device is formed on at least one friction surface on two contra-rotationally and oppositely disposed disc parts that are in frictional contact with one another. In order to propose how to determine the initial stressing effect of the frictional action independently of external support of the disc parts, the frictional surfaces are pressurized against one another by means of at least one spring element.

Abstract: A connection for a torque converter including a cover, a piston plate, and at least one leaf spring having a first portion with a resilient segment and a second portion rotationally connected to one of the cover or the piston plate. The other of the cover or the piston plate comprises a first protrusion and the resilient segment grips the first protrusion. In an example embodiment, the second portion is riveted to the one of the cover or the piston plate. In an example embodiment, the one of the cover or the piston plate includes a second protrusion and the second portion includes a resilient segment that grips the second protrusion.

Abstract: An arc spring damper, including: a plurality of arc springs, a driving flange having a plurality of driving spring segment, a driven flange having a plurality of driven spring segments, and a ring plate including a plurality of radially extending retention segments. Each arc spring in the plurality of arc springs includes a passageway with first and second openings at first and second longitudinal ends, respectively, for the arc spring. Each driving spring segment includes a circumferentially extending driving portion and each driven spring segment includes a circumferentially extending driven portion. For each spring, a respective driving portion passes through the first opening into the passageway and a respective driven portion passes through the second opening into the passageway. Each radially extending segment from the plurality of radially extending segments is connected to and rotatable with a spring from the plurality of arc springs and radially restrains the arc spring.

Abstract: A clutch and damper assembly for a torque converter includes a clutch piston with a piston friction surface for engaging the clutch and an outer sealing diameter, and a damper. The piston friction surface is disposed radially inward of the damper and the outer sealing diameter is disposed radially outward of the damper. In an example embodiment, the clutch piston includes an inner sealing diameter disposed radially inward of the piston friction surface. In some example embodiments, the damper includes a resilient element and a drive plate. The drive plate is drivingly engaged with the resilient element and frictionally engageable with the clutch piston.

Abstract: A torque converter damper, including: an output hub; a first side plate arranged for rotational connection to a lock-up clutch and a turbine of the torque converter. Includes first and second intermediate flange plates; a flange connected to the output hub; springs engaged with the first side plate and the intermediate flange plates; springs engaged with the intermediate flange plates and with the flange; and a resilient element creating frictional contact between first and second components of the torque converter damper. Relative rotation of the first and second components at the frictional contact attenuates vibration at the output hub. The first and second components are rotatable with respect to each other. Rotation of the first component is fixed to rotation of the hub. Rotation of the second component is arranged to be fixed to rotation of the turbine. The hub is arranged to be rotatable with respect to the turbine.

Abstract: A torque converter, including: a turbine with a turbine shell; and a damper assembly including: an output flange; a first cover plate; a first drive plate fixedly secured to the turbine shell; a first plurality of springs engaged with the first cover plate; a second plurality of springs engaged with the first cover plate and the output flange; a third plurality of springs engaged with the first cover plate and the first drive plate; and a single torque path from the turbine shell to the damper assembly, the single torque path formed by the first drive plate.

Abstract: A series damper, including: a first damper with a flange and a cover plate; and a second damper with first and second cover plates and a flange. The flange and the cover plate for the first damper are rotationally frictionally engaged and the flange for the second damper rotates free of frictional engagement with the first and second cover plates. The series damper includes a resilient element arranged to cause the frictional engagement of the flange and the cover plate for the first damper. In some aspects, the resilient element is frictionally engaged with the cover plate for the first damper and is arranged to frictionally engage a turbine hub for a torque converter. In some aspects, the resilient element is rotationally connected to the flange for the first damper. In some aspects, the flange for the first damper includes the second cover plate for the second damper.

Abstract: A damper assembly including a cover having at least one aperture therein, a flange operatively connected to the cover, and a spring having at least one leg engaged with a radially outer surface of the flange, the spring having at least one post engaged in the aperture of the cover, wherein engaging the post in the aperture preloads the spring against the radially outer surface of the flange for exerting a force on the damper.

Abstract: A vibration damper including a first spline having a plurality of first teeth, a second spline having a plurality of second teeth, a third spline having a plurality of third teeth and at least one spring interconnected between the first and second splines, wherein the plurality of third teeth are intermediate the plurality of first teeth and the plurality of second teeth, and the at least one spring biases the plurality of first teeth and the plurality of second teeth against the plurality of third teeth.

Abstract: The present invention comprises a lash prevention spring of unique design having a plurality of spring legs shaped into an s-curve and an inner circumference formed into at least one spline. The invention also comprises a lash prevention assembly in which the disclosed lash spring is attached to a damper hub and is biased against the several teeth from a turbine hub that extend through the damper hub from its opposite side.

Abstract: A clutch plate including a first friction ring with an inner circumference and an outer circumference, and a resilient drag reducing element with a formed portion. The formed portion is at least partially radially disposed between the inner circumference and the outer circumference, extends axially beyond the first friction ring, and is compressible to be substantially circumferentially or radially aligned with the first friction ring. In some example embodiments of the invention, the resilient element is arranged to maintain a minimum clearance between the first friction ring and a mating surface.

Abstract: A torsional vibration damper with a friction device. The friction device is formed on at least one friction surface on two contra-rotationally and oppositely disposed disc parts that are in frictional contact with one another. In order to propose how to determine the initial stressing effect of the frictional action independently of external support of the disc parts, the frictional surfaces are pressurized against one another by means of at least one spring element.

Abstract: A drive lug for a piston plate in a torque converter, including a base operatively arranged for attachment to the piston plate and a protruding portion integral to the base and extending axially from the base. The protruding portion is operatively arranged to engage with a damping element in the torque converter. In some aspects, the plate is arranged for attachment with a plurality of drive lugs, while in other aspects, the drive lug is arranged for attachment to the plate with at least one rivet. In some aspects, the lug is made of a hardenable material or by forging. In some aspects, the piston plate further includes an outer circumference and the drive lug is arranged to be secured proximate the outer circumference. In some aspects, the damping element further includes a spring and the drive lug is arranged to engage with the spring. In some aspects, the piston plate further includes an axial width, the drive lug further includes a radial width, and the radial width is greater than the axial width.

Abstract: A connection for a torque converter including a cover, a piston plate, and at least one leaf spring having a first portion with a resilient segment and a second portion rotationally connected to one of the cover or the piston plate. The other of the cover or the piston plate comprises a first protrusion and the resilient segment grips the first protrusion. In an example embodiment, the second portion is riveted to the one of the cover or the piston plate. In an example embodiment, the one of the cover or the piston plate includes a second protrusion and the second portion includes a resilient segment that grips the second protrusion.