Planetary gear train of automatic transmission for vehicle
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United States of America Patent
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Jan 16, 2018
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N/A
app pub date -
Oct 25, 2016
filing date -
Dec 10, 2015
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Abstract
A planetary gear train of an automatic transmission for a vehicle may include an input shaft receiving torque of an engine, an output shaft outputting changed torque of the engine, a first planetary gear set including a first rotation element, a second rotation element, and a third rotation element, a second planetary gear set including a fourth rotation element, a fifth rotation element, and a sixth rotation element, a third planetary gear set including a seventh rotation element, an eighth rotation element, and a ninth rotation element, a fourth planetary gear set including a tenth rotation element, an eleventh rotation element, and a twelfth rotation element, and first, second, third, fourth, fifth, sixth and seventh rotation shafts, each connected to at least one of the first to twelfth rotation elements.
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