| 摘要 |
A variable transmission arrangement having enhances power output and high efficiency is disclosed. The arrangement provides paired rollers positioned within retaining rotating elements for co-action with, for example, toroidal disks forming full toroidal cavity. The high efficiency is realized by minimizing spin between contracted rollers and toroidal disks. This is achieved by alignment of the rollers so that all corresponding rotational axes and lines tangential to contacting points, namely the input and output rotational axes as well as those of the rollers themselves intersect, thus minimizing spin. This relationship ensures the highest traction and reduced slip necessary for maximizing the output and power density. As many as nine pairs of wedged rollers can be used for overall ratio of 5:1 with ability to provide adequate and proportional clamping while respecting the geometric imperfections of the contacting surfaces. In a simplest configuration paired balls can be used where the balls exhibit self-alignment properties, thus minimizing the spin |
