Planetary gear transmission systems or components – Differential planetary gearing – Planet pinion is worm gear
Patent
1991-06-10
1992-03-24
Braun, Leslie A.
Planetary gear transmission systems or components
Differential planetary gearing
Planet pinion is worm gear
475249, F16H 144
Patent
active
050983563
ABSTRACT:
A torque proportioning differential (10, 60, or 120) is modified to exhibit a bias ratio that varies with torque transmitted by the differential. Thrust forces (34 and 36, 88 and 90, or 144 and 146) generated within the differential are opposed by at least one pair of surfaces (38 and 40, 96, 98 and 104, 106, or 152, 154 and 156, 158) having different frictional characteristics. One of the surfaces (38, 96 and 98, or 152 and 154) opposes a portion of the thrust forces, and the other surface (40, 104 and 106, or 156 and 158) opposes a remaining portion of the thrust forces. A control member (54, 100 and 102, or 152) responsive to the transmitted torque limits the respective portions of the thrust forces opposed by each of the two surfaces.
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U.S. Patent Application, Ser. No. 602,735, "Differential with Varied Frictional Surfaces," Filing Date: 10/24/90.
Brewer Mark S.
Guidoni Sandro
Braun Leslie A.
Trousdell William O.
Zexel-Gleason U.S.A., Inc.
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