Machine element or mechanism – Gearing – Plural power paths to and/or from gearing
Patent
1981-01-15
1984-11-06
Herrmann, Allan D.
Machine element or mechanism
Gearing
Plural power paths to and/or from gearing
74768, 74760, 74761, F16H 5710
Patent
active
044805039
ABSTRACT:
A multi-speed transmission comprising either two or three planetary gear sets arranged in a series with the output from the first and second sets of the series operatively connected to the inputs of the second and third sets of the series, respectively. In all three sets the planetary gear carrier is the output member thereof. All three sets have a direct drive clutch for operatively connecting their respective input and output members. One of the planetary gear sets has at least three different gearing diameters on its respective pinions and the input is a ring gear operatively engaged with the largest diameter gearing. Another planetary gear set is a range gear having an input sun gear and a plurality of pinions having a gearing which provides a speed reduction ratio greater than the highest speed reduction ratio of the previously mentioned planetary gear set. Another planetary gear set has an input ring gear and a plurality of planetary pinions having at least two gearing diameters, the speed reduction ratio being intermediate between the speed reduction ratios of the first mentioned planetary gear set.
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Ahlen Karl-Gustav
Bergstrom Per-Olof
Herrmann Allan D.
S.R.M. Hydromekanik Aktiebolag
Wright D.
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