MULTI-SPEED TRANSMISSION
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United States of America Patent
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Issued Date -
Nov 24, 2016
app pub date -
Jan 13, 2015
filing date -
Jan 13, 2015
priority date (Note) -
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Abstract
An automatic transmission includes a single-pinion first planetary gear, a double-pinion second planetary gear, a single-pinion third planetary gear, a single-pinion fourth planetary gear, clutches C1, C2, C3, and C4, and brakes B1 and B2. First to ninth forward speeds and a reverse speed are established by engaging three of the clutches C1 to C4 and the brakes B1 and B2 and disengaging the remaining three clutches and brakes.
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