Continuously variable transmission

F - Mech Eng,Light,Heat,Weapons – 16 – H

Patent

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Details

F16H 15/12 (2006.01) B62M 11/04 (2006.01) B62M 23/00 (2006.01) F16H 15/44 (2006.01) F16H 59/06 (2006.01) F16H 59/14 (2006.01)

Patent

CA 2522685

A variable ratio transmission for mechanically coupling an input member to an output member, the variable ratio transmission allowing the conversion of an input rotational motion of the input member into an output rotational motion of the output member, the input rotational motion having an input speed and an input torque and the output rotational motion having an output speed and an output torque. The variable ratio transmission includes a variable ratio transmission assembly mechanically coupled to the input member and to the output member for rotating the output member at the output speed in response to the input member being rotated at the input speed, the variable ratio transmission assembly defining a transmission ratio between the output speed and the input speed, the transmission ratio being variable; and a ratio controller mechanically coupled to the variable ratio transmission assembly and to the input member for automatically adjusting the transmission ratio as a function of the input torque.

Transmission à variation continue pour accoupler mécaniquement un élément d'entrée à un élément de sortie, la transmission permettant la conversion d'un mouvement rotatif d'entrée de l'élément d'entrée en un mouvement rotatif de sortie de l'élément de sortie, le mouvement rotatif d'entrée ayant un régime et un couple d'entrée, le mouvement rotatif de sortie ayant également un régime et un couple de sortie. La transmission à variation continue comprend une boîte de vitesses à variation continue accouplée mécaniquement à l'élément d'entrée et à l'élément de sortie pour faire tourner l'élément de sortie à un régime de sortie en fonction du régime de rotation de l'élément d'entrée, la boîtes de vitesses à variation constante définissant un rapport de transmission entre le régime de sortie et le régime d'entrée, le rapport de transmission étant variable; la transmission comprend également un contrôleur de rapport de démultiplication accouplé mécaniquement à la boîte de vitesses à variation continue et à l'élément d'entrée pour ajuster automatiquement le rapport de transmission en fonction du couple d'entrée.

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