Fluid coupling

Details Fluid coupling Fluid coupling

1990-09-27

1991-12-10

Herrmann, Allan D.

192 clutches and power-stop control

Clutches

Fluent material

192 82T, F16D 3100

Patent

active

050709810

ABSTRACT:
A fluid coupling includes a valve unit for reducing working fluid introduced into a labyrinth-groove to adjust a ratio of a rotation speed of a cooling fan to that of an internal combustion engine, when the engine speed is rapidly increased. The valve unit comprises a through opening formed in one surface of a partition member which divides an internal space within a housing into two fluid chambers, and a valve plate pivotably supported on the surface of the partition member. The pivotal axis of the valve member is on a plane essentially same as that of the surface of the partition member. When no load is applied to the valve member, the valve member is positioned such that the through opening remains open, and, when force applied thereto by rotation of the housing becomes greater than a predetermined value, the valve member is moved so as to close the through opening.

REFERENCES:
patent: 4007819 (1977-02-01), Maci
patent: 4683999 (1987-08-01), Light et al.

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