Lock-up damper device for torque converter

Details Lock-up damper device for torque converter Lock-up damper device for torque converter

1990-06-20

1991-01-29

Lorence, Richard

192 clutches and power-stop control

Vortex-flow drive and clutch

Including drive-lockup clutch

192 329, 1921062, 464 63, 464 64, F16H 4502, F16D 312

Patent

active

049879804

ABSTRACT:
A lock-up damper for a torque converter disposed between a front cover and a torque converter and having a piston with a friction member thereon, a first retaining plate secured to the piston and a side plate and second retaining plate secured to each other and to the piston by a common securing means. The first retaining plate holding outer torsion springs and the side plate and second retaining plate holding inner torsion springs and a driven plate between the piston and the torque converter and secured at its inner peripheral end to a hub of a turbine, the driven plate having a plurality of projections of progressively engaging the inner and outer torsion springs.

REFERENCES:
patent: 4138003 (1979-02-01), Malloy
patent: 4347717 (1982-09-01), Lamarche
patent: 4559024 (1985-12-01), Tamura et al.
patent: 4668207 (1987-05-01), Koshimo
patent: 4693348 (1987-09-01), Tsukamoto et al.
patent: 4694941 (1987-09-01), Hall et al.

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