Multi-stage gearbox
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United States of America Patent
Stats
-
Jan 10, 2006
Grant Date -
Jul 29, 2004
app pub date -
Mar 27, 2002
filing date -
Mar 30, 2001
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A multi-stage gearbox with a drive input shaft connected to a reduction planetary gear set, with a drive output shaft connected to a main planetary gear set, and with shift elements. An input speed of the drive input shaft can be transferred, by the engagement of at least seven forward gears to the drive output shaft, in such manner that to shift from one gear to the next-higher or next-lower gear, only one shift element is disengaged and another shift element is engaged. The reduction planetary gear set has an output shaft rotating at an output speed of the reduction planetary gear set. The main planetary gear set is connected to the drive input shaft. The main planetary gear set is connected to the output shaft of the reduction planetary gear set.
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