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This planetary gear train consists of a sun gear (yellow), planet gears (blue) and carrier (green) inside a ring gear (red) An epicyclic gear train (also known as a planetary gearset) is a gear reduction assembly consisting of two gears mounted so that the center of one gear (the "planet") revolves around the center of the other (the "sun").
The planet gear is fixed to the connecting rod and thus does not rotate around its own axis. Note that the axles of the two gears are usually tied to each other by a freely rotating link (the white bar visible behind the gears in the animation) that keeps the two gears engaged but does not contribute to the drive torque.
The Ravigneaux gearset is a double planetary gear set, invented by Pol Ravigneaux, who filed a patent application on July 28, 1949, in Neuilly-sur-Seine France. [1] This planetary gear set, commonly used in automatic transmissions, is constructed from two gear pairs, ring–planet and planet–planet. The gearset provides four forward gear ...
Simpson Planetary Gearset Schematic Diagram. The two planetaries are interdependent via two permanent connections, that commonly but not necessarily have the same gears and gear ratios, both gearsets share a common sun gear. The planet carrier of the first gearset ("first" means closer to the input shaft) is in synchrony with the second gearset ...
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The left sun gear (red) provides more resistance than the right sun gear (yellow), which causes the planet gear (green) to rotate anti-clockwise. This produces slower rotation in the left sun gear and faster rotation in the right sun gear, resulting in the car's right wheel turning faster (and thus travelling farther) than the left wheel.
A (red) idler gear on the arm meshes with the fixed gear. A third (green) gear meshes with the idler. The third gear has half the number of teeth of the fixed gear. An (orange) arm is fixed to the third gear. If the length of the arm equals the distance between the fixed and outer gears = d, the arm will describe a straight line of throw = 2d.
This page was last edited on 27 July 2024, at 13:07 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may ...