Retaining ring in a hydraulically actuated friction element asse

Details Retaining ring in a hydraulically actuated friction element asse Retaining ring in a hydraulically actuated friction element asse

1997-08-04

1999-08-17

Marmor, Charles A

192 clutches and power-stop control

Clutches

Axially engaging

192109R, 192 85AA, 403DIG7, F16B 2118, F16D 1352

Patent

active

059379855

ABSTRACT:
In a hydraulically actuated friction clutch or brake for an automatic transmission, contact between a pressure plate and retaining ring, each drivably engaged with an axially spline, is located at radialy outer position on the retaining ring, either because the adjacent surface of the pressure plate is relieved to produce contact at that location or because the retaining ring has a lateral surface that is relieved locally or tapered away from the surface of the retaining ring. Bending through the thickness of the component in which the spline teeth engage the pressure plate and retaining ring is reduced because the reaction force is applied to that component closer to the neutral axis than if contact between the pressure plate and retaining ring were distributed over a greater radial dimension of the retaining ring.

REFERENCES:
patent: 3313385 (1967-04-01), Forster
patent: 3460427 (1969-08-01), Baumgarten
patent: 4014619 (1977-03-01), Good et al.
patent: 4714146 (1987-12-01), Moroto et al.
patent: 4813522 (1989-03-01), Fujioka et al.
patent: 4997073 (1991-03-01), Fujioka et al.
patent: 5103953 (1992-04-01), Nakayama et al.
patent: 5352079 (1994-10-01), Croskey
patent: 5617941 (1997-04-01), Takahashi et al.
U. application No. 08/852,549-A Friction Gear Assembly For Driving A Power Takeoff Unit From An Automatic Transmission, Filed May 7, 1997.

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