Clutch separator plates

Details Clutch separator plates Clutch separator plates

1990-07-20

1991-07-09

Herrmann, Allan D.

192 clutches and power-stop control

Clutches

Axially engaging

291107M, 20419216, F16D 1360

Patent

active

050296868

ABSTRACT:
A clutch separator plate (24) utilized in a clutch or brake pack (10) for an automotive transmission for vehicles, with the plates being internally or externally splined to be operatively connected to the rotatable and/or stationary members (12, 14) in a torsional coupling, wherein the separator plate surfaces (44) are treated by a suitable surface treatment, such as lapping, and the sputter coated with titanium nitride or a similar material (46) to provide a surface texture which enhances the frictional characteristics of the plate but does not substantially increase the wear of the lining of interleaved clutch plates (16).

REFERENCES:
patent: 3071489 (1963-01-01), Pelton et al.
patent: 3245508 (1966-04-01), Livezey
patent: 3744604 (1973-07-01), Austen
patent: 3848313 (1974-11-01), Guvonnet
patent: 3897582 (1975-07-01), Olcott
patent: 4419202 (1988-12-01), Gibson
patent: 4422538 (1983-12-01), Krumm
patent: 4428812 (1984-01-01), Sproul
patent: 4904316 (1990-02-01), Dawes et al.
Brainard, W. A. and Wheeler, D. R., "Use of a Nitrogen-Argon Plasma to Improve Adherence of Sputtered Titanium Carbide Coatings on Steel", Journal of Vac. Science Technology, vol. 16, No. 1 (Jan./Feb. 1979), pp. 31-36.
Christy, R. L. and Ludwig, H. R., "R. F. Sputtered MoS.sub.2 Parameter Effects on Wear Life", Thin Solid Films, vol. 64 (1979) pp. 223-229.

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