Reduced cost viscous coupling by-pass element for a torque conve

Details Reduced cost viscous coupling by-pass element for a torque conve Reduced cost viscous coupling by-pass element for a torque conve

1992-12-18

1994-05-24

Bonck, Rodney H.

192 clutches and power-stop control

Vortex-flow drive and clutch

Including drive-lockup clutch

192 57, 192 58B, 29434, 298895, F16H 4502, F16D 3500, F16D 4706

Patent

active

053140486

ABSTRACT:
A viscous coupling (11) is disclosed of the type used as a by-pass element in a torque converter assembly (T) including a torque converter housing (H) and an output shaft (S). The coupling includes a body member (13), a cover member (15), and an annular clutch assembly (19). The clutch assembly includes a pair of clutch plates (53 and 57), riveted to a mounting portion (37), and the coupling housing includes a housing plate (59), disposed between the clutch plates. The housing plate (59) has an outer portion (61) which is fixed between the body and cover members, by means of tabs (65) engaging the body member (13) and tabs (69) engaging the cover member (15). Preferably, the tabs (65) are received in recesses (67) to prevent relative rotation of the housing plate (59) and body member (13). Also disclosed is an assembly and fluid fill method which eliminates the need for fill holes and plugs or balls being pressed into the fill holes. The disclosed coupling requires substantially less machining than prior art viscous couplings, and therefore, has substantially reduced manufacturing cost.

REFERENCES:
patent: 2901074 (1959-08-01), Badin
patent: 3404832 (1968-10-01), Sutaruk
patent: 4058027 (1977-11-01), Webb
patent: 4496034 (1985-01-01), Bopp
patent: 5044477 (1991-09-01), Bojas et al.
patent: 5172796 (1992-12-01), Campbell et al.

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