PROTECTIVE ELECTRIC CIRCUIT OF ENGINE STARTING SELSYN MOTOR

摘要

PURPOSE:To prevent the occurrence of an allophone and prevent the breakage of a selsyn motor by incorporating a selsyn motor protective circuit preventing the selsyn motor from being operated during the engine rotation in an engine starting electric circuit. CONSTITUTION:When a key switch 1 is turned to the START side, the current of a battery 2 is fed to a selsyn motor. The rotary pinion gear 8 in this selsyn motor 3 is protruded and engaged with the flywheel 4 of an engine. A selsyn motor protective circuit 6 prevents the selsyn motor 3 from being operated by utilizing the electric powder generated by a dynamotor 5 during the engine rotation. Accordingly, the occurrence of an allophone is prevented and the breakage of the selsyn motor can be prevented.