Power transmitting system for a four-wheel drive vehicle

Details Power transmitting system for a four-wheel drive vehicle Power transmitting system for a four-wheel drive vehicle

1987-07-10

1989-04-11

Braun, Leslie A.

Machine element or mechanism

Gearing

Plural power paths to and/or from gearing

74740, 180248, F16H 3706

Patent

active

048195065

ABSTRACT:
A pair of planetary gear devices and a viscous coupling are provided in a power transmitting system. The viscous coupling operates to transmit power of an engine in accordance with the difference between speeds of an input member and output member thereof. One of the members of one of the planetary gear devices is operatively connected to a front drive shaft through the viscous coupling and another member of the other planetary gear device is operatively connected to a rear drive shaft. A pair of change-over coupling devices are provided to selectively lock the planetary gear devices and the viscous coupling.

REFERENCES:
patent: 4417642 (1983-11-01), Suzuki et al.
patent: 4428452 (1984-01-01), Muraoka et al.
patent: 4457394 (1984-06-01), Suzuki
patent: 4618022 (1986-10-01), Hayashi
patent: 4700800 (1987-10-01), Friedrich et al.
patent: 4718301 (1988-01-01), Friedrich
patent: 4721011 (1988-01-01), Kubo et al.

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