Planetary gear train of automatic transmission for vehicles
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United States of America Patent
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Oct 23, 2018
Grant Date -
Jan 18, 2018
app pub date -
Dec 7, 2016
filing date -
Jul 13, 2016
priority date (Note) -
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Abstract
A planetary gear train may include first to fourth planetary gear sets having first to twelfth rotation elements; a first shaft connected with the first rotation element; a second shaft connecting the second and sixth rotation elements; a third shaft connecting the third, seventh, and tenth rotation elements; a fourth shaft connected with the fourth rotation element and a transmission housing; a fifth shaft connected with the fifth rotation element and selectively connectable with the third shaft; a sixth shaft connected with the eighth rotation element and the output shaft; a seventh shaft connected with the ninth rotation element; an eighth shaft connected with the eleventh rotation element, selectively connectable with the first shaft and the second shaft, respectively, and connected with the input shaft; and a ninth shaft connected with the twelfth rotation element and selectively connectable with the sixth shaft.
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