Four-wheel vehicle drive system

Details Four-wheel vehicle drive system Four-wheel vehicle drive system

1982-09-30

1984-10-16

Pekar, John A.

Motor vehicles

Having four wheels driven

With manually operated means for disengaging drive to one or...

74701, B60K 1734, B60K 2308

Patent

active

044769520

ABSTRACT:
A four-wheel drive system for a vehicle, comprising a laterally or transversely positioned engine, a power transmission gear unit including input and output shafts in lateral directions of the vehicle, a final reduction gear rotatable about an axis parallel with the transmission input and output shafts and adapted to be driven by the transmission output shaft, a main gear casing having enclosed therein the transmission gear unit and the final reduction gear, an auxiliary gear casing secured to the main gear casing, a main power transfer shaft enclosed in the auxiliary gear casing and rotatable about an axis aligned with the axis of rotation of the final reduction gear, a low-and-high speed shift gear assembly enclosed in the auxiliary gear casing and comprising an auxiliary power transfer shaft parallel with the main power transfer shaft, a first wheel drive gear unit enclosed in the auxiliary gear casing and comprising a differential gear assembly including an input member rotatable with one of the gears of the shift gear assembly and output members connected to a first pair of road wheels, a second wheel drive gear unit connected to a second pair of road wheels of the vehicle, and a right-angle power transfer gear unit enclosed in the auxiliary gear casing and operative to transmit driving power from the auxiliary power transfer shaft to the second wheel drive gear unit.

REFERENCES:
patent: 3993152 (1976-11-01), Fogelberg
patent: 4415058 (1983-11-01), Suzuki
patent: 4417642 (1983-11-01), Suzuki
patent: 4420059 (1983-12-01), Suzuki
patent: 4428452 (1984-01-01), Muraoka et al.
patent: 4431079 (1984-02-01), Suzuki
patent: 4449604 (1984-05-01), Suzuki
patent: 4457394 (1984-07-01), Suzuki
patent: 4476953 (1984-10-01), Hiraiwa

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