Starter flywheel with fixing of the gear ring to its radial surface

摘要

The flywheel, rotating about an axis (2) and comprising a support (3) and toothed ring (4) connected by complementary radial surfaces, has the ring designed to allow for radial deformation towards the axis of rotation in certain angular sectors (12) corresponding to piston compression and expansion zones. The radial surfaces of the support and ring are joined together in fixing sectors (14) lying between adjacent deformation sectors.