Planetary gear transmission systems or components – Differential planetary gearing – Bevel gear differential
Patent
1993-09-27
1996-01-16
Ta, Khoi Q.
Planetary gear transmission systems or components
Differential planetary gearing
Bevel gear differential
192107M, F16H 144, F16D 1100, F16D 1360
Patent
active
054843472
ABSTRACT:
A locking differential is disclosed having a clutch pack (35) operable to retard rotation between a gear case (11) and a pair of sidegears (23,25). A cam (41) is operatively associated with the clutch and includes an axially movable cam member (43) to engage the clutch pack. The clutch pack includes active clutch discs (63,73) operable to effect the rate of engagement of the clutch pack. At least one pair of active disc surfaces having pyrolytic carbon friction material (75) and the other surface having a non-pyrolytic carbon friction material. With repeated use and increasing temperature, the rate of engagement of the clutch pack increases, providing a "variable rate" locking differential.
REFERENCES:
patent: 3831462 (1974-08-01), Baremor
patent: 3932568 (1976-01-01), Watts et al.
patent: 4238013 (1980-12-01), Goscenski, Jr.
patent: 4389909 (1983-06-01), Goscenski, Jr.
patent: 4700823 (1987-10-01), Winckler
patent: 5007886 (1991-04-01), Holmquist et al.
patent: 5083650 (1992-01-01), Seiz et al.
patent: 5103942 (1992-04-01), Schmitt
patent: 5230952 (1993-07-01), McCord
Eaton Corporation
Kasper L. J.
Ta Khoi Q.
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