Single rail shift operator assembly
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 9, 1999
Grant Date -
N/A
app pub date -
Jun 6, 1997
filing date -
Jun 6, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A transfer case having a two-speed drive assembly includes a directly coupled shift operator with feedback. The shift operator includes an electric, pneumatic or hydraulic motor which directly, rotatably drives a shift rail. The shift rail includes threads and receives a shift fork having complementary threads. The shift fork engages a dog clutch. Bi-directional rotation of the shift rail correspondingly bi-directionally translates the shift fork to select direct drive (high gear), reduced speed drive (low gear) or neutral operation of the two-speed drive assembly. A shift rail position sensor provides data to associated logic and command circuitry regarding the actual position of the shift fork.
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