Motor for electric starter used with internal combustion engines, utilizes a planetary reduction gear formed integrally with the armature

摘要

The starter has a planetary gear (30) coupling starter and engine, with a sun wheel (15) on the motor shaft (4), an outer sleeve (40) with a fixed rotation stop (42), and a ring gear (32) mounted in the outer sleeve. A flange (41) is formed on the motor shaft. Planet wheels (16) run on the back of the flange. The ring gear can turn and slide in the outer sleeve when torque is excessive.