Machine element or mechanism – Gearing – Plural power paths to and/or from gearing
Patent
1978-02-01
1981-01-20
Herrmann, Allan D.
Machine element or mechanism
Gearing
Plural power paths to and/or from gearing
F16H 145
Patent
active
042455251
ABSTRACT:
A pair of differential side gears are splined to separate driven shafts that rotate the driven wheels of a vehicle. Rotation of a driven shaft is transmitted through a differential case and spider gears to the side gears. The side gears are rotatably mounted on a thrust assembly. Belleville spring assemblies exert a biasing force upon interleaved clutch plates alternately splined to the case and the side gears. Upon the occurrence of an unequal torque distribution between the driven shafts the gear separating forces exerted by the spider gears upon the side gears become imbalanced. The side gear associated with the driven shaft of the wheel having reduced traction is displaced axially toward the spider gears. This axial movement is transmitted through the thrust assembly to the side gear associated with the driven shaft of the wheel having the greater traction to axially move the side gear and compress the clutch plates to frictionally engage the case and the side gear. Rotation is transmitted from the case through the clutch plates to the side gear to increase the torque of the driven shaft of the wheel having the greater traction and thereby rotate the wheel having the greater traction.
REFERENCES:
patent: 3495298 (1970-02-01), Engle et al.
patent: 3580108 (1969-12-01), Mieras
patent: 3624717 (1970-02-01), Brubaker
patent: 3815442 (1974-06-01), McAninch et al.
patent: 3893351 (1975-07-01), Baremor
patent: 3929036 (1975-12-01), Shealy
Adams John M.
Herrmann Allan D.
National Mine Service Company
Price, Jr,. Stanley J.
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