Ringed cover and seal for a viscous fluid clutch and method of m

Details Ringed cover and seal for a viscous fluid clutch and method of m Ringed cover and seal for a viscous fluid clutch and method of m

1992-10-05

1994-07-19

Lorence, Richard M.

192 clutches and power-stop control

Clutches

Fluent material

192112, 19211323, 298893, 416169A, F16D 3502

Patent

active

053300408

ABSTRACT:
A viscous fluid clutch includes a cover having an airflow ring. The airflow ring can be formed integrally with or separately from the cover. Concentric inner and outer walls are attached to each other by radially spaced fins. A cooling passage for airflow is provided between each pair of adjacent fins. During rotation, a cooling airflow passes freely between the fins, improving the rate of heat transfer from the clutch. Such construction of the walls and fins and a method for forming the cover are well suited for casting and eliminate the need for costly prior art machining. A labyrinth seal can be formed between the cover and housing by an annular flange on the housing received into a complementary groove in the cover.

REFERENCES:
patent: 3053363 (1962-09-01), Weir
patent: 3055473 (1962-09-01), Oldberg et al.
patent: 3059745 (1962-10-01), Tauschek
patent: 3075691 (1963-01-01), Kelley
patent: 3250355 (1966-05-01), Weir
patent: 3272292 (1966-09-01), Sutaruk
patent: 3318526 (1967-05-01), Mobius
patent: 3727593 (1973-04-01), Enke
patent: 3993415 (1976-11-01), Hauser
patent: 4181172 (1980-01-01), Longhouse
patent: 4181205 (1980-01-01), Mennucci et al.
patent: 4444300 (1984-04-01), Hayashi et al.
patent: 4630721 (1986-12-01), Johnston et al.

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