Continuously variable transmission
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United States of America Patent
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-
Feb 24, 1998
Grant Date -
N/A
app pub date -
May 15, 1996
filing date -
Nov 17, 1993
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A CVT having a variator unit, epicyclic unit for plural ratio combinations, plural regime engagin couplers, a clutch and an output shaft. The epicyclic unit includes a splitting epicyclic gear and two components of the splitter is connected to the oppsite ends of the variator. The epicyclic unit having plural connections to the drive output shaft through the regime engaging couplers. The epicyclic unit also includes a recirculating epicyclic which has two components commoned with two components of the splitter epicyclic. The recirculating epicyclic provides an additional output which is connectable to the output shaft to provide at least one creep regime. The clutch can either be locked when starting with the creep regime operative or slippingly engaged when starting with the creep regime non-operative.
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