Patent · US Expired

Toroidal type continuously variable transmission

US5807203A · kind A · utility

8Cited by
1References
13Claims
0Family size

Assignee

Inventors

Key dates

Filing dateSep 12, 1996
Grant dateSep 15, 1998
Priority date
Expiry dateSep 12, 2016

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T74/19628
  • WIPO fieldMechanical elements
  • WIPO sectorMechanical engineering

Abstract

In order to improve the transmission efficiency of a toroidal type continuously variable transmission by reducing the dynamic torque loss of an antifriction bearing, a first output gear is constituted by a pair of helical gears of which the directions of inclinations are opposite to each other, and a second output gear is constituted by a double helical gear. By this construction, a thrust force created in the meshing portion between the first and second output gears is offset and the dynamic torque loss of the antifriction bearing is reduced.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.