Starter device for driving motor vehicle`s heat engine, has planetary speed reducer with planet gears driving sun gear, ring gear having teeth to drive planet gears and housed in inner bore of pulley, and planet carrier fixed to case

摘要

The device has a front planetary speed reducer (19) rotatively connecting a pulley (80) to an armature shaft (14) driven by an electric motor (16). The reducer has planet gears (36) driving a sun gear (52), a planet carrier (40) on which the gears (36) are mounted and a ring gear (44) with teeth to drive the gears (36). The ring gear is housed in an inner bore (84) of the pulley and the carrier is fixed relative to a case (48).