Multiple speed synchronous automatic transmission for motor vehicles
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United States of America Patent
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-
Oct 5, 1993
Grant Date -
N/A
app pub date -
May 4, 1992
filing date -
May 4, 1992
priority date (Note) -
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Abstract
A multiple speed transmission for use in an automotive vehicle driveline includes a torque converter and three simple planetary gear units, one-way clutches and brakes, friction clutches, and friction brakes. The engaged and disengaged state of the friction elements permit the transmission to produce several underdrive speed ratios, a direct drive ratio and several overdrive ratios. The transmission output shaft is geared to produce a direct drive connection to the spindle of an axle differential, which drives wheels fixed to the axle shafts.
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