Patent ID: 6209320
Filing Date: 2001-04-03
Classification: F16D

Abstract:
A stepless continuously variable transmission system comprising:a series of concentric cages;an input shaft;an output shaft operatively connected to the input shaft by the series of concentric cages; anda casing housing the input shaft and the output shaft and having a transmission medium inlet and a transmission medium outlet,some of the cages being fixed to the output shaft and being free to rotate on the input shaft, others of the cages being fixed to the input shaft and being free to rotate on the output shaft,the cages comprising a series of blades adapted to interact with a transmission medium moved in a predetermined direction within the casing between the transmission medium inlet and the transmission medium outlet,wherein an angular momentum of the transmission medium imparts a thrust on the blades of the cages fixed to the output shaft, and the angular momentum of the transmission medium relieves a pressure formed in a central zone of the system by moving the transmission medium in the central zone to the transmission medium outlet.