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Continuously variable transmission

  • US 9,046,158 B2
  • Filed: 01/13/2014
  • Issued: 06/02/2015
  • Est. Priority Date: 02/28/2003
  • Status: Expired due to Term
First Claim
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1. A power train, comprising:

  • a planetary gearset mounted on a shaft having a longitudinal axis, the planetary gearset including a planet carrier coupled to the shaft;

    a variator mounted coaxially with and coupled to the planetary gearset, the variator comprisinga plurality of balls, each ball having a tiltable axis about which it rotates,a cage configured to align the tiltable axes of the plurality of balls and further configured to maintain the radial and angular position of each ball in the plurality of balls,a first disc in contact with the plurality of balls, anda second disc in contact with the plurality of balls and further coupled to a case to form a rotating hub shell; and

    an idler in contact with the plurality of balls.

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