Automatic four-wheel drive transfer case

Details Automatic four-wheel drive transfer case Automatic four-wheel drive transfer case

1978-05-08

1980-01-29

Herrmann, Allan D.

192 clutches and power-stop control

Clutches

Automatic

180247, 192 44, 192 4892, F16D 4110, F16D 4704

Patent

active

041857232

ABSTRACT:
A power transfer mechanism incorporated in a multiple path drive system comprises a transfer case disposed between a source of input torque and a pair of drive axles. Torque is transferred directly to the fixed axle and, when required, is transferred automatically to the steering axle through a double-acting overrunning clutch. A friction clutch provides a preset constant friction drive through a separate path in parallel with the overrunning clutch for independent torque transfer from the steering axle to the fixed axle.

REFERENCES:
patent: 1273952 (1918-07-01), Tibbetts
patent: 2699852 (1955-01-01), Cost
patent: 2796941 (1957-06-01), Hill
patent: 3221574 (1965-12-01), Sampietro et al.
patent: 3295625 (1967-01-01), Ordorica et al.
patent: 3300002 (1967-01-01), Roper
patent: 3481436 (1969-12-01), Wilkowski
patent: 3854561 (1974-12-01), Conde
patent: 3993152 (1976-11-01), Fogelberg

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