STARTER WITH PLANETARY REDUCTION GEAR Russian patent published in 1997 - IPC

FIELD: automotive industry; electrical equipment of internal combustion engines. SUBSTANCE: starter with planetary reduction gear has housing 1, solenoid switch 5, traction motor with stator on permanent magnets and armature 7 one end of which is installed in endshield 4 and the other, in sun gear 9 of planetary reduction gear Ring gear 16 is made in form of nonmetallic ring with internal teeth 17, is covered at both end faces by guard members 18 and 19 and is provided with axial and tangential fixing means. Width of gear teeth is not less than 1.5-fold thickness of planet pinion. Axial fixing means consists of thrust rings 20 and 21 and nonmetallic ring cage 23 with permanent magnets mated with three axial displacement limiters 28. Carrier 11 is made integral with output shaft 12, and part of carrier 11 on which planet pinion shafts 32 are fixed has shape of equilateral triangle with truncated vertices. Ring gear 16 has shape of cylindrical ring with slots 33 uniformly spaced over circumference at one side, and at least three uniformly spaced over circumference at one side, and at least three uniformly spaced projections 34 at other side. Sun gear, ring gear and carrier with planet pinions can be placed in one detachable unit made of nonmetallic material. EFFECT: enlarged operating capabilities. 3 cl, 9 dwg