Planetary gear transmission systems or components – Electric or magnetic drive or control – Differential drive or control
Patent
1990-05-18
1992-04-21
Diehl, Dwight
Planetary gear transmission systems or components
Electric or magnetic drive or control
Differential drive or control
74567, 192 93A, 475239, F16H 144.5
Patent
active
051063492
ABSTRACT:
A differential unit comprises a differential carrier (12) supported in a housing (1) for rotation; output elements (16, 17) differentially rotatable relative to the carrier and connected to respective output shafts, differential gears connecting the output elements, and a friction assembly comprising a number of plates (22) rotationally fast with one element of the differential interleaved with a number of plates (24) rotationally fast with another element of the differential, the friction plates being axially loadable into frictional engagement with one another to restrict the differential rotation of the output elements. The friction plates are loadable by an actuating mechanism comprising an abutment ring (54) fixed in the housing and an actuating ring (28) movable angularly and axially relative thereto, with cam surfaces provided by circumferentially extending variable depth grooves (47, 48) in the rings with balls (49) therebetween engaging the grooves. The cam grooves are arranged so that on angular movement of the actuating ring initially the rate of change of axial position thereof is high and then becomes lower with further angular movement.
REFERENCES:
patent: 2091270 (1937-08-01), Colman
patent: 2574204 (1951-11-01), Woody et al.
patent: 2661826 (1953-12-01), Hendrickson et al.
patent: 2848086 (1958-08-01), Warsaw
patent: 3791501 (1974-02-01), Culbertson
patent: 4679463 (1987-07-01), Ozaki et al.
patent: 4683998 (1987-08-01), Cogdem et al.
patent: 4741407 (1988-05-01), Torii et al.
patent: 4805486 (1989-02-01), Hagiwara et al.
patent: 4838118 (1989-06-01), Binkley
Botterill John R.
Kuhn Gerald
Mildt Helmut
Diehl Dwight
GKN Automotive AG
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