Multi-step gear
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United States of America Patent
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Oct 21, 2003
Grant Date -
N/A
app pub date -
Apr 3, 2002
filing date -
Oct 14, 1999
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The invention concerns a multi-step transmission with at least 7 forward gears, with which transmission on the input drive shaft (1), two non-shiftable input-side gear sets (RS1, RS2) are provided, which, on their output-side produce two speeds of rotation (n1, n2), which, besides the speed of rotation of the input drive shaft (1), by selective closure of the shift elements (A, B, C, D, E) are shiftable in such a manner to one of the output-side planetary gear sets (RS3, RS4) which upon the output drive shafts (2), that for the shifting from one into the respective next following higher or lower gear of the two activated shift elements, respectively, only one shifting element must be open and a further element closed.
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