Planetary gear transmission systems or components – Differential planetary gearing – Spur gear differential
Patent
1994-05-02
1995-08-22
Wright, Dirk
Planetary gear transmission systems or components
Differential planetary gearing
Spur gear differential
F16H 4810
Patent
active
054434300
ABSTRACT:
A differential for transmitting rotational power to the left and right axles of a vehicle. Loss of adhesion by one drive wheel is countered by the other drive wheel maintaining traction through the independent action of its one-way drive configuration. Differential balance between the two wheels is accomplished by the high feedback forces from the ground overcoming the gear set locking action, thus enabling the wheels to balance the driving torque in the usual manner. If one of the drive wheels loses traction, the differential configuration enables torque to be continuously delivered to the other drive wheel, with no time gap occurring between slippage and delivery of torque to the drive wheel having traction. Inherent in the present invention is a corrective gear ratio bias which counters the effects of torque steer at all speeds and driving conditions. The inventive differential does not use slip clutches, which tend to wear out over time, or complex and costly traction control systems.
REFERENCES:
patent: 1225842 (1917-05-01), Mennie
patent: 1312856 (1919-08-01), Leonard
patent: 1756939 (1930-05-01), Crawford
patent: 1918864 (1933-07-01), Priest
patent: 2648236 (1953-08-01), Wilson
patent: 4762023 (1988-08-01), Ivy
patent: 5171194 (1992-12-01), Shen
Brown, Jr. Neuberne H.
Wright Dirk
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