| Patent application number | Description | Published |
|---|
| 20090032364 | Method and apparatus for lash prevention using coil springs - 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. A method of preventing lash in a vibration damper, the 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, the method including the steps of: introducing the plurality of third teeth intermediate the plurality of first teeth and the plurality of second teeth; and, biasing the plurality of first teeth and the plurality of second teeth against the plurality of third teeth with the at least one spring. | 02-05-2009 |
| 20090107792 | Series damper with hysteresis in one damper - 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. | 04-30-2009 |
| 20090139819 | Torque converter with connector plate for a clutch plate and arc spring - A torque converter including a lock up clutch, the lock up clutch including a piston and a clutch plate, a spring, and a connector plate, the connector plate connecting to the clutch plate at a connection and drivingly engaged with the spring at a spring engagement, the connection to the clutch plate being radially outside of the spring engagement. | 06-04-2009 |
| 20100187066 | LOW FRICTION ARC SPRING DAMPER - 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. | 07-29-2010 |
| 20100197412 | TORQUE CONVERTER LEAF SPRING CONNECTIONS - 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. | 08-05-2010 |
| 20100210366 | TORSIONAL VIBRATION DAMPER - 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. | 08-19-2010 |
| 20110000758 | REDUCED DRAG CLUTCH PLATE - 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. | 01-06-2011 |
