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Continuously variable friction roll toroidal drive

  • US 20050064986A1
  • Filed: 11/18/2004
  • Published: 03/24/2005
  • Est. Priority Date: 05/25/2002
  • Status: Abandoned Application
First Claim
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1. A continuously variable friction roll toroidal drive comprising:

  • two variator disks which can be turned about a common roll axis, wherein the variator disks each have a track that is part of a circumferential surface of a torus concentric with the common roll axis;

    two or more rollers in contact with the tracks of the variator disks;

    a housing for each roller, wherein the rollers are mounted for rotation in the respective housings;

    a support associated with each housing, wherein the axis of rotation of each roller can turn on an axis which is inclined at an angle to a central plane of the torus;

    a hydraulically operated piston to which each support is joined, wherein the direction of action of each support lies in the center plane of the torus; and

    a turning body for each roller, wherein each roller is mounted for rotation on its turning body, and wherein the turning body is mounted for turning in the housing, while the axis of rotation of the turning body is inclined at the angle to the center plane of the torus.

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