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US 12,523,281 B2Granted
CVT with idle and reverse function
OwnerKarl Zetterlundinventor
Life of this patent
Estimating the term…
Abstract
A continuous variable transmission, Variator, which works on the ball and disc principle whereby the ball is in a fixed position, free to rotate in any direction, and the discs move to and from each other causing output shaft to either idle or rotate of various speeds including reverse as directed by the attached control device without need for additional gears and clutches.
Claims2
A continuous variable transmission variator, comprising:
- a freely rotatable ball fixedly located between two rotatable flat, high-friction-treated discs, the discs being fitted on swingarms freely rotating on an input and output shafts, enabling the discs to move to and from each other, thus changing relative positions with respect to each other;
- wherein a center of a first disc of the two discs faces a center of the ball, a center of a second disc of the two discs is offset from the center of the ball;
- wherein each of the two discs is rotatably connected to one of the input or the output shaft via a first plurality of wheels or a second plurality of wheels, each of the two discs freely rotating on one of the swingarms;
- wherein the discs fitted on the swingarms change relative position on the input and output shafts when the swingarms are moved;
- and wherein, when the ball is in a center position of the first disc of the two discs, the input or output shaft connected to the second disc of the two discs is not rotating, and when the first disc passes the centered position, the second disc rotates in an opposite direction with respect to the first disc.
2 more elements
Dependencies are inferred from the claim text.