Abrégé

Two or more stages of planetary mechanisms are used as an automatic geared variator, which stages of planetary mechanisms comprise sun gears, a carrier and planetary gears which can be in the form of double wheel gears. The planetary mechanisms comprise two or more power transfer flows. In one of the structural embodiments, the carrier of the first stage can be formed in one piece with the sun wheel gear of the second stage, the sun wheel gear of the first stage can be formed in one piece with the carrier of the second stage and the transmission ratio is changed without disengaging gears and without using control devices by initially stopping at least one link or placing it in a position close to the stop position, depending on the equality or closeness of forces of different power flows which are opposite in terms of the orientation thereof and which are transmitted thereto from different sides and from the main power flow links which are divided by the kinematic chains and depend on the load, relations between the diameters of the gears, center-to-center spacing determined by the number of teeth thereof and modules, and owing to the mobility of such a link which depends on the change in load, forces, the circular and relative velocity of the links in such a way that such an equality is recovered by the tendency of the forces to balance and to the restoration of the initial equilibrium position of the links.

Classes IPC  ?

• F16H 3/74 - Ensembles n'utilisant pas d'organes de changement de vitesse ou d'organes de régulation, p. ex. avec rapport de vitesse déterminé par le libre jeu du frottement ou d'autres forces
• F16H 48/06 - Transmissions différentielles avec des engrenages à mouvement orbital