MAGNETIC PLANETARY GEAR SYSTEM AND APPARATUS USING THE SAME

摘要

A planetary gear system is provided that has a ring gear having an inner circumference; a planet gear having an outer circumference; and a sun gear having an outer circumference. One of the ring gear, the planet gear or the sun gear is a driving gear and one of the ring gear, the planet gear or the sun gear is a driven gear, and rotation of the driven gear is caused by magnetic forces between the driving gear and the driven gear.