Vehicle torque transfer case for a four wheel drive system

Machine element or mechanism – Gearing – Plural power paths to and/or from gearing

Patent

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Details

74665T, 74467, 74714, 180247, F16H 3708

Patent

active

048606120

ABSTRACT:
A four wheel drive transfer case transmits power from the output of a vehicle transmission to front and rear differential assemblies. The transfer case includes an input shaft coupled to the output shaft of the vehicle transmission, and an interaxle planetary gear differential for dividing power between a rear output shaft connected to the vehicle rear differential and a front output shaft connected to the vehicle front differential. An electromagnetic friction clutch is located in the transfer case and is adapted to selectively lock the planetary gear differential to prevent slip between the front and rear output shafts. An electronic control is operative to selectively engage the electromagnetic clutch to lock the differential for a predetermined time period when a predetermined amount of slip is detected between the front and rear output shafts. In accordance with the present invention, a cross-axised gearing arrangement is utilized to provide an angled front output shaft which has a rotational axis oriented in non-parallel, non-intersecting relationship with the rotational axis of the rear output shaft. This arrangement provides a substantially straight line connection between the transfer case and the vehicle rear differential, and between the transfer case and the vehicle front differential. Also, a unique lubrication system is provided for supplying lubricating oil to the upper components of the transfer case.

REFERENCES:
patent: 2185636 (1940-01-01), Kysor
patent: 2195479 (1940-04-01), Buchner
patent: 2223522 (1940-12-01), Kysor
patent: 2762233 (1956-09-01), Orr
patent: 3095758 (1963-07-01), Bixby
patent: 3262512 (1966-07-01), O'Brien
patent: 3583526 (1971-06-01), Mulleder
patent: 3650349 (1972-03-01), Cleveland
patent: 3656573 (1972-04-01), Halberg
patent: 3748928 (1973-07-01), Shiber
patent: 3828877 (1974-08-01), Fogelberg
patent: 4074591 (1978-02-01), Dick
patent: 4147225 (1979-03-01), Mazziotti
patent: 4231266 (1980-11-01), Nishikawa et al.
patent: 4242923 (1981-01-01), Nishikawa et al.
patent: 4270409 (1981-06-01), Glaze et al.
patent: 4289213 (1981-09-01), Seaman
patent: 4417641 (1983-11-01), Kageyama
patent: 4688447 (1987-08-01), Dick

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