Fluid friction coupling with closing slide

Details Fluid friction coupling with closing slide Fluid friction coupling with closing slide

1990-03-07

1991-04-02

Herrmann, Allan D.

192 clutches and power-stop control

Clutches

Fluent material

192103F, 192106F, 180248, F16D 3100, F16D 4324

Patent

active

050040855

ABSTRACT:
The invention relates to a fluid friction coupling (1) with a housing (2) and a hub (4) rotatably received within the housing. The interior (11) of the housing is divided into a main chamber (22) and a receiving chamber (23). Only the main chamber (22) is occupied by inner plates (8) and outer plates (6) of the coupling. The two chambers (22, 23) are separated by separating plates (18, 19). However, the separating plates (18, 19) comprise closable apertures (24) each of which is associated with a slide (25). The closing slides (25) open the apertures (24), thereby providing a passage between the two chambers (22, 23) when a certain rotational speed is exceeded. As a result, the possibility of a transfer of the coupling (1) into the hump mode is reduced at high rotation speeds.

REFERENCES:
patent: 3537557 (1970-11-01), Olson
patent: 3677381 (1972-07-01), Takagi et al.
patent: 4048872 (1977-09-01), Webb
patent: 4261455 (1981-04-01), Uitenbroek et al.

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