Transmission

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

Patent

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Details

74688, 74645, F16H 4704

Patent

active

046178350

ABSTRACT:
The present invention provides a high efficiency automatic transmission for a vehicle in which the input speed to output speed gearing ratio is infinitely variable. The transmission of the present invention comprises a torque converter assembly having a first impeller drivingly connected to an input shaft. A second stage impeller is operatively coupled to a sun gear and receives the fluid from the first stage impeller. A turbine receives the fluid from the second stage impeller and this turbine, in turn, is drivingly connected to a ring gear. A reaction member operatively coupled with a one-way brake is disposed between the outlet end of the turbine vanes and the inlet end of the first stage vanes. At least one pair, and preferably three pair, of intermeshed pinions are disposed between the sun and ring gears so that one pinion also meshes with the sun gear while the other pinion meshes with the ring gear. The orbital movement of these pinions is transmitted to an output shaft from the transmission via a carrier assembly.

REFERENCES:
patent: 2865227 (1958-12-01), Kelly et al.
patent: 2950631 (1960-08-01), Seybold
patent: 2981125 (1961-04-01), Dodge
patent: 3000234 (1961-09-01), Burtnett
patent: 3073181 (1963-01-01), Kronogard
patent: 3150542 (1964-09-01), Baker
patent: 3188887 (1965-06-01), Gabriel
patent: 3212357 (1965-10-01), Knowles et al.
patent: 3282129 (1966-11-01), Gabriel
patent: 3358530 (1967-12-01), Baker
patent: 3442152 (1969-05-01), Chana
patent: 4229996 (1980-10-01), Hildebrand
patent: 4232567 (1980-11-01), Hobbs

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