Multi-capacity friction device

Details Multi-capacity friction device Multi-capacity friction device

1986-12-22

1988-02-16

Bonck, Rodney H.

192 clutches and power-stop control

Clutches

Progressive engagement

192 85AA, 192109F, F16D 25063

Patent

active

047249412

ABSTRACT:
A selectively engageable friction torque transmitter has a housing in which is slidably disposed a piston to which housing is drivingly connected a plurality of friction discs or plates. The transmitter further includes a hub member to which are drivingly connected a plurality of second friction plates or disks interleaved with the aforementioned first plates. The first plate closest to the piston has a portion of the outer periphery thereof removed to permit fingers on the piston to bypass said plate and to be in close proximity with the next of the first plates. When the piston is initially moved axially to cause engagement of the friction transmitter, the first plate closest to the piston does not transmit torque while the remaining first plates and the associated second plates do transmit torque. An apply ring on the piston is placed in abutment with the first plate after initial engagement, to cause all of the interleaved plates to be frictionally engaged.

REFERENCES:
patent: 3236349 (1966-02-01), Wiggins et al.
patent: 4040339 (1977-08-01), Ivey
patent: 4623055 (1986-11-01), Ohkubo
patent: 4664242 (1987-05-01), Downs

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