Multi-ratio transmission systems

Details Multi-ratio transmission systems Multi-ratio transmission systems

1975-03-27

1977-01-18

Gerin, Leonard H.

Machine element or mechanism

Gearing

Plural power paths to and/or from gearing

74766, F16H 5710

Patent

active

040032736

ABSTRACT:
A multi-ratio power transmission for a vehicle having a torque-converter or fluid coupling, the output of which can be selectively coupled by clutches to a larger or a smaller sun wheel of a planetary gear set having long planet pinions meshing with the larger sun wheel and short planet pinions meshing with the smaller sun wheel and an output annulus. The small sun pinion is disposed on the input side of the planetary gearing, and a direct drive from the input of the transmission is selectively engagable to drive the planet carrier of the planetary gear set for use in establishing a direct wholly mechanical overdrive ratio bypassing the fluid coupling or torque-converter.

REFERENCES:
patent: 3298252 (1967-01-01), Harris et al.

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