Valving for vane damper

Details Valving for vane damper Valving for vane damper

1992-04-23

1994-11-01

Braun, Leslie A.

192 clutches and power-stop control

Vortex-flow drive and clutch

Including drive-lockup clutch

1921062, 464 27, 464 57, 464 58, F16D 380, F16D 3500

Patent

active

053600908

ABSTRACT:
A torsion isolator assembly (30) for reducing driveline torsionals includes a vane damper (36) including improved valving (40d,40e) for increasing the damping factor of the damper, improved spiral springs (32,34 or 80,82) for reducing spring stress primarily due to centrifugal forces, and cam surfaces (44d,440c) for further reducing spring stress due to centrifugal forces.

REFERENCES:
patent: 187424 (1877-02-01), Slicer
patent: 2114247 (1938-04-01), Davis
patent: 3091447 (1963-05-01), Donkin
patent: 3208303 (1965-09-01), Durouchoux
patent: 3246485 (1966-04-01), Chapman
patent: 4181208 (1980-01-01), Davis
patent: 4576259 (1986-03-01), Bopp
patent: 4608883 (1986-09-01), Bopp
patent: 4703840 (1987-11-01), Bopp
patent: 4768637 (1988-09-01), Bopp et al.
patent: 4782936 (1988-11-01), Bopp
patent: 5078648 (1992-01-01), Stretch
patent: 5078649 (1992-01-01), Leichliter et al.
patent: 5085617 (1992-02-01), Stretch
patent: 5226514 (1993-07-01), Chimner et al.
patent: 5234376 (1993-08-01), Chimner et al.

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