Transmission for four-wheel drive vehicles

Details Transmission for four-wheel drive vehicles Transmission for four-wheel drive vehicles

1980-05-28

1983-01-11

Braun, Leslie A.

Machine element or mechanism

Gearing

Plural power paths to and/or from gearing

74665G, 74606R, F16H 3706, F16H 5702

Patent

active

043676618

ABSTRACT:
A transmission for four-wheel drive vehicles of the type having a four-wheel drive transfer disposed between the front transmission section having a gear train or a planetary gear train therein and the rear transmission section to which lubricating oil or hydraulic operating fluid is to be introduced, the improvement comprising a wet type or multi-plate clutch for the four-wheel drive transfer which permits a smooth switching over between a two-wheel drive mode and a four-wheel drive mode while the vehicle is cruising, and further comprising a fluid path which connects between the bottom of the rear transmission section and the front transmission section and through which the lubricating oil or hydraulic operating oil in the rear transmission section can be smoothly returned to the oil pan located under the rear transmission section.

REFERENCES:
patent: 2107072 (1938-02-01), Herrington
patent: 2290089 (1942-07-01), Bock
patent: 2711222 (1955-06-01), Bock
patent: 2802554 (1957-08-01), Pringle
patent: 2853890 (1958-09-01), Kelbel
patent: 3111852 (1963-11-01), May et al.
patent: 3802294 (1974-04-01), Smirl
patent: 3955442 (1976-05-01), Kessmar
patent: 4056988 (1977-11-01), Kubo et al.
patent: 4079275 (1978-03-01), Fu
patent: 4103753 (1978-08-01), Holdeman
patent: 4193322 (1980-03-01), Morino
patent: 4223566 (1980-09-01), Yamamori et al.
patent: 4270409 (1981-06-01), Glaze et al.

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