DUAL-CAVITY TOROIDAL VARIATOR

摘要

The invention is about a dual-cavity toroidal variator. The torques from the first and second cavities are balanced by controlling each roller with mechanical means rather than individually controlling each roller with a hydraulic actuator. The mechanical means may be a balancing mechanims having a pivotable linking lever (66) by which the roller carrier (40) of the first cavity and the roller carrier (41) of the second cavity are linked.

主权项

1. A variator comprising:
a first input surface and a first output surface defining a first toroidal cavity and being coaxially mounted for rotation about a variator axis and a first plurality of rollers in driving engagement with the first input and first output surfaces; a second input surface and a second output surface defining a second toroidal cavity and being coaxially mounted for rotation about the variator axis and a second plurality of rollers in driving engagement with the second input and second output surfaces; and a control assembly comprising a first roller won which the plurality of rollers in the first cavity are rotatably mounted and a second roller carrier upon which the plurality of rollers in the second cavity are rotatably mounted and which assembly is adapted to balance the reaction torque from the first cavity with the reaction torque from the second cavity.