Machine element or mechanism – Gearing – Plural power paths to and/or from gearing
Patent
1974-08-27
1976-12-14
Scott, Samuel
Machine element or mechanism
Gearing
Plural power paths to and/or from gearing
74764, 192 8713, F16H 5710, F16D 1900
Patent
active
039968170
ABSTRACT:
A transmission constructed according to the present invention includes a plurality of planetary gear sets, two inputs clutches being simultaneously engaged to establish an intermediate gear ratio within the transmission, each of the input clutches also being engaged together with additional friction devices in the transmission for establishing gear ratios either higher or lower than the intermediate gear ratio, the interconnection of the planetary gear units being selected for improved torque transmission, the input clutches being interrelated by means of a balancing mechanism to facilitate their operation either in unison or separately from each other.
REFERENCES:
patent: 2693721 (1954-11-01), Forster
patent: 3318174 (1967-05-01), Clapp et al.
patent: 3486398 (1969-12-01), Waclawek
patent: 3575067 (1971-04-01), Herman
patent: 3713354 (1973-01-01), Edmunds
patent: 3733928 (1973-05-01), Uozumi et al.
patent: 3820418 (1974-06-01), Ott
Caterpillar Tractor Co.
Lall Parshotam S.
Scott Samuel
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