Clutch plate

Details Clutch plate Clutch plate

1999-03-31

2000-12-12

Marmor, Charles A.

192 clutches and power-stop control

Clutches

Automatic

192 847, 192107M, F16D 1304, F16D 2300, F16D 4100, F16D 4300

Patent

active

061585610

ABSTRACT:
On a frictional engage surface of one of inner and outer clutch plates constructing a wet-type multi-disk clutch, a plurality of convex ridges are formed at an infinitesimal predetermined interval distance. Lubricating oil is kept between the convex ridges, so that the wedge operation in oil can be reduced, whereby the torque transfer characteristic can be improved. Further, a height of the convex ridge is set equal to or more than 1 .mu.m and the interval distance of the convex ridge is set equal to or less than 600 .mu.m, preferably.
In the configuration of the clutch plate, it is made of steel as a substrate. Further, a nitrogen diffusion layer, a nitrided layer and an oxidation tunic is formed on said nitrided layer are formed on the substrate in its order therefrom.

REFERENCES:
patent: 4702779 (1987-10-01), Madsac et al.
patent: 4904316 (1990-02-01), Dawes et al.
patent: 4924984 (1990-05-01), Kennedy
patent: 5176236 (1993-01-01), Ghidorzi et al.
patent: 5366419 (1994-11-01), Oda
patent: 5954173 (1999-09-01), Sakai et al.
"Nitrotec Process for Mechanical Engineers", vol. 40, No. 3, Mar. 1992, pp. 93-102 (with English abstract).

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