DOUBLE-CLUTCH GEARCHANGE
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United States of America Patent
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N/A
Issued Date -
Dec 3, 2009
app pub date -
May 12, 2009
filing date -
May 13, 2008
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A double-clutch gearchange presenting: two primary shafts; a secondary shaft; a plurality of pairs of gear wheels, each of which couples mechanically the primary shaft, to the secondary shaft, defines a respective gear speed, and has a primary gear wheel mounted on the primary shaft and a secondary gear wheel that is mounted on the secondary shaft and meshes permanently with the primary gear wheel; a plurality of synchronizers, each of which is mounted coaxial to a shaft between two gear wheels of two pairs of gears and is designed to be actuated for engaging alternatively the two gear wheels to the shaft; a plurality of forks, which actuate the synchronizers and are divided into two distinct groups, each of which is associated to a respective primary shaft; two fingers, each of which is associated to a set of forks for actuating all and exclusively the forks of the set of forks themselves; a single control shaft; and a single gear actuator connected to the control shaft.
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