Two mass flywheel assembly with torsional damping means

Details Two mass flywheel assembly with torsional damping means Two mass flywheel assembly with torsional damping means

1987-06-05

1988-11-08

Wright, Dirk

192 clutches and power-stop control

Clutches

Operators

74574, 464 59, F16F 1510, F16D 314, F16D 4702

Patent

active

047829362

ABSTRACT:
A torsional damping mechanism (30,32) disposed in a two mass flywheel assembly (24) for reducing the effects of driveline torsionals or vibrations. The assembly includes primary and secondary flywheel masses (26,28), a viscous damper assembly having an annular housing assembly (46c, 50a) integrally formed with the primary flywheel mass, an annular clutch assembly defined by radially inner and outer clutching members (72,74) disposed in the housing, and nested spiral wound springs (58,60) disposed between an inner hub portion (46a) of the primary mass and a radially inner portion (28b) of the secondary mass. The inner clutching member (72) is driven by an axially extending hub portion (28c) of the secondary mass and the outer clutching member (74) is driven by the inner clutching member through a lost motion means defined by splines (72c, 74b). Radially outer ends (58b, 60b) of the spiral wound springs are retained against pivotal movement by fastening means (64, 66) to improve stress distribution in the springs and to reduce friction between the spiral coils of the springs.

REFERENCES:
patent: 2838955 (1958-06-01), Burch
patent: 3262527 (1966-07-01), Allaben, Jr.
patent: 3266271 (1966-08-01), Stromberg
patent: 4145936 (1979-03-01), Vincent et al.
patent: 4181208 (1980-01-01), Davis
patent: 4557357 (1985-12-01), Tinholt
patent: 4576259 (1986-04-01), Bopp
patent: 4584901 (1986-04-01), Conseur
patent: 4615237 (1986-10-01), Forkel
Drawing coded 170286 "Dual Mass Flywheel with Serial Damper" 2/1986.
Foreign paper by A. Sebulke et al., "Das Zwei-Massen-Schwungard, Ein Neuentwickelter Torsiondampfer Fur Der PKW-Antriesstrang", (The Two-Mass-Flywheel, A Newly Developed Torsion Damper for Car Drivelines), Coded 365150. (no date)

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