Multistep gear
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United States of America Patent
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-
Jan 31, 2006
Grant Date -
May 20, 2004
app pub date -
Mar 27, 2002
filing date -
Mar 30, 2001
priority date (Note) -
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status (Latency Note)
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Abstract
A multi-step gear including a drive shaft linked with a non-shiftable front-mounted gear train, an output shaft linked with a shiftable rear-mounted gear train with four free shafts, and shift elements for selective shifting without group shifts. The first free shaft of the rear gear train is linked with a first shift element, the second free shaft with second and third shift elements, the third free shaft with fourth and fifth shift elements and the fourth free shaft with the output shaft. With six shift elements, the first or third free shaft of the rear-mounted gear is additionally linked with a sixth shift element. With seven shift elements, the third free shaft is additionally linked with a sixth shift element and the first free shaft is additionally linked with a seventh shift element.
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