Planetary gear transmission systems or components – Nonplanetary variable speed or direction transmission... – Nonplanetary transmission is belt or chain gearing
Reexamination Certificate
2009-11-11
2011-11-01
Pang, Roger (Department: 3655)
Planetary gear transmission systems or components
Nonplanetary variable speed or direction transmission...
Nonplanetary transmission is belt or chain gearing
C475S219000
Reexamination Certificate
active
08047944
ABSTRACT:
A transmission unit, especially a multirange transmission, includes two superposition gears that are embodied as triple-shaft planetary gears, a continuously variable transmission in the form of a traction gear, and a way for controlling the transmission ratio on the traction gear. The individual superposition gears and the continuously variable transmission are coupled to each other via one respective connecting gear. The second shaft of the first superposition gear and a shaft of the second superposition gear can be alternatively joined to the gear output via a shiftable clutch. The second shaft of the first superposition gear can be connected in a torsion-proof manner to the third shaft of the second superposition gear. The first shaft of the second superposition gear is joined to a shaft of the first superposition gear via another shifting clutch.
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Pang Roger
Taylor IP, P.C.
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