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Ball type continuously variable transmission

  • US 9,638,301 B2
  • Filed: 10/28/2015
  • Issued: 05/02/2017
  • Est. Priority Date: 03/14/2013
  • Status: Expired due to Fees
First Claim
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1. A variable transmission comprising:

  • an input shaft;

    a gear ratio comprising a first gear coupled to the input shaft, a countershaft and a second gear coupled to the countershaft;

    a variator (CVP) comprising a first ring assembly coupled to the second gear on the countershaft, a carrier assembly comprising a plurality of tiltable variator balls, each ball drivingly engaged with the first ring assembly, and a second ring assembly drivingly engaged with the tiltable variator balls; and

    a planetary gearset comprising a planet carrier drivingly engaged with the input shaft, a ring gear drivingly engaged with the second ring assembly of the variator, and a sun gear drivingly engaged with an output;

    wherein the planetary gearset is configured to split power of the input shaft between the variator and a mechanical path going directly to the output.

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