Planetary-roller-type continuously variable transmission

Details Planetary-roller-type continuously variable transmission Planetary-roller-type continuously variable transmission

2007-09-25

2007-09-25

Marmor, Charles A. (Department: 3681)

Planetary gear transmission systems or components

Planet pinion is friction gear

C475S007000, C475S903000

Reexamination Certificate

active

10995251

ABSTRACT:
Fine adjustment of the rotation speed ratio or intentional control of the rotation speed ratio is carried out, centered on a desired speed ratio, including 1:1, for the rotation speed ratio between an input shaft and an output shaft. A planetary-roller speed-increasing mechanism whose input shaft is a carrier and whose output shaft is a sun roller, a planetary-roller speed-reduction mechanism whose input shaft is a sun roller and whose output shaft is a carrier, and a worm speed-changing mechanism for rotationally driving a roller ring in contact with planetary rollers of the planetary-roller speed reduction mechanism are provided in a housing. The output shaft of the planetary-roller speed-increasing mechanism and the input shaft of the planetary-roller speed-reduction mechanism are linked.

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