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Continuously variable transmission

  • US 6,689,012 B2
  • Filed: 04/25/2002
  • Issued: 02/10/2004
  • Est. Priority Date: 04/26/2001
  • Status: Expired due to Term
First Claim
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1. A continuously variable transmission having a longitudinal axis, comprising;

  • a plurality of speed adjusters, each having a tiltable axis of rotation, and each speed adjuster located radially outward from the longitudinal axis;

    a drive disk annularly rotatable about the longitudinal axis and contacting a first point on each of the speed adjusters and having a first side facing the speed adjusters and a second side facing away from the speed adjusters;

    a driven disk annularly rotatable about the longitudinal axis and contacting a second point on each of the speed adjusters;

    a generally cylindrical support member annularly rotatable about the longitudinal axis and contacting a third point on each speed adjuster;

    a bearing disk annularly rotatable about the longitudinal axis, and adapted to provide rotational force to the drive disk;

    at least two axial force generators, the axial force generators located between the drive disk and the bearing disk, each axial force generator configured to apply a component of an axial force to the drive disk, thereby improving the contact of the drive disk and the speed adjusters.

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