Power-branched transmission having a plurality of transmission ration ranges with continuously variable transmission ratio
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United States of America Patent
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May 18, 2010
Grant Date -
Jan 25, 2007
app pub date -
Jul 22, 2006
filing date -
Jul 23, 2005
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A power-branched transmission having a plurality of transmission ratio ranges and having a continuously variable transmission ratio. The transmission includes at least one drive shaft operatively connected to an engine with a rotationally fixed connection, a power divider, a variable speed drive, and an output shaft. The power divider is a planetary gear train and the drive shaft is directly coupled with the internal ring gear of the planetary gear train. Also disclosed is a shift system for such a transmission and a variable speed drive unit clutch arrangement.
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