Viscous fluid coupling and improved fluxring for use therein

Details Viscous fluid coupling and improved fluxring for use therein Viscous fluid coupling and improved fluxring for use therein

1994-08-15

1996-04-30

Lorence, Richard M.

192 clutches and power-stop control

Clutches

Fluent material

192 5863, 192 82T, F16D 3502

Patent

active

055116434

ABSTRACT:
A fluid coupling device is disclosed including a cover member (11) and an actuator assembly (35) disposed adjacent thereto for actuating a valve member (31). The cover includes an annular fluxring (49), which may be cast into the cover (11) and defines a radially inner surface (57). Extending radially inward from the surface (57) is an annular dovetail portion (59) defining radially outer surfaces (61,63). The cover member includes a cast central portion (55) disposed radially inward of the fluxring (49). As the cast central portion (55) cools, subsequent to casting, it shrinks and seals against the outer surfaces (61,63) of the dovetail (59), because the cover member (11) has a coefficient of thermal contraction which is greater than that of the fluxring (49), thus eliminating the formation of radial clearances between the cast central portion (55) and the inner surface (57) of the fluxring (49).

REFERENCES:
patent: 5030865 (1991-07-01), Rockey et al.
patent: 5152383 (1992-10-01), Boyer et al.

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