Device for the induction heating of the teeth of a toothed wheel incorporating a main annular induction coil and two auxiliary annular induction coils connected in parallel to a power source

摘要

A device (10) for the induction heating of the teeth (12) of a toothed wheel (13), arranged on at least one peripheral wall (14), comprises: (a) a main annular induction coil (18) connected to a power source and arranged coaxial to the toothed wheel opposite the peripheral wall; (b) first (19) and second (20) auxiliary annular induction coils electrically connected to the power source in parallel to the main induction coil and arranged coaxial to and on either side of the main induction coil at a distance from the teeth.