Four-wheel-drive system for automotive vehicle

Details Four-wheel-drive system for automotive vehicle Four-wheel-drive system for automotive vehicle

1981-03-31

1983-11-29

Peters, Jr., Joseph F.

Motor vehicles

Having four wheels driven

With differential means for driving two wheel sets at...

74682, 74740, 180297, B60K 1734

Patent

active

044176422

ABSTRACT:
A four-wheel-drive system for a vehicle, comprising a power unit having an output shaft in a lateral direction of the vehicle, a power transmission gear unit having input and output shafts parallel with the output shaft of the power unit, a speed reduction gear to be driven by the transmission output shaft, two final reduction gear units one of which is arranged for driving the front road wheels and the other of which is arranged to drive the rear road wheels of the vehicle, a series combination of two planetary gear assemblies one of which is capable of selectively producing two different gear ratios for low-speed and high-speed vehicle driving and the other of which is operatively connected between the two final reduction gear units so as to be capable of providing a differential gear action therebetween, and a low-and-high speed shifting clutch mechanism intervening between the speed reduction gear and the former planetary gear assembly.

REFERENCES:
patent: 3265173 (1966-08-01), Russell
patent: 3350960 (1967-11-01), Lamburn et al.
patent: 3378093 (1968-04-01), Hill
patent: 3557634 (1971-01-01), Bixby
patent: 3889771 (1975-06-01), Kronogard
patent: 4208923 (1980-06-01), Ikegami

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