Modulating limited slip differential

Details Modulating limited slip differential Modulating limited slip differential

1990-07-02

1991-05-28

Wright, Dirk

Planetary gear transmission systems or components

Electric or magnetic drive or control

Differential drive or control

475231, F16H 144

Patent

active

050190210

ABSTRACT:
A modulating limited slip differential is disclosed of the type including a gear case (11; 111; 211) an actuating mechanism (51, 151; 251) being operable to apply a force to a clutch pack (41; 141; 241) to retard rotation between a side gear (25; 125; 225) and the gear case. The actuating mechanism includes an outer actuating plate (55; 155; 255) which normally rotates at the same speed as the gear case. The differential includes an electromagnetic actuator (81; 181; 281) which is operable to cause rotation of the outer actuating plate relative to the gear case resulting in ramping of a plurality of cam balls (79; 179; 279) and axial movement of an inner actuating plate (53; 153; 253) to load the clutch pack.

REFERENCES:
patent: 1777024 (1930-09-01), Wildhaber
patent: 2241087 (1941-05-01), Griswold
patent: 3138970 (1964-06-01), Costa et al.
patent: 3400610 (1968-09-01), Taylor et al.
patent: 4644823 (1987-02-01), Mueller
patent: 4805486 (1989-02-01), Hagiwara et al.
patent: 4895236 (1990-01-01), Sakakibara et al.
patent: 4950214 (1990-08-01), Botterill

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