Electromagnetically operable friction-disk clutch

Details Electromagnetically operable friction-disk clutch Electromagnetically operable friction-disk clutch

1988-11-17

1990-05-22

Reese, Randolph A.

192 clutches and power-stop control

Clutches

Plural clutch-assemblage

192 84AA, 192 84AB, 192 84C, F16D 2708

Patent

active

049269925

ABSTRACT:
An electromagnetically operable friction-disk clutch for an impeller of a fan, in particular of motor vehicle internal-combustion engines, is proposed, in which the impeller can be driven at engine speed and two different windmilling speeds. To produce the engine speed, a first electromagnetic friction-disk clutch (4) is provided, which drives the impeller (2) via an armature ring (15) and an impeller hub (17). A lower windmilling speed is generated by a second electromagnetic friction-disk clutch (6) via an eddy-current coupling (7). A special, integral stepped ball bearing (19) serves for this purpose, the intermediate ring (22) of which serves as drive flange (22) for the eddy current coupling (7).

REFERENCES:
patent: 4488627 (1984-12-01), Streich et al.
patent: 4498066 (1985-02-01), Fujiwara et al.
patent: 4718526 (1988-01-01), Koitabashi

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