Engine Starter System

A rotor 21 of a stator 1 using a switched reluctance (SR) motor is directly coupled to a crankshaft 31 of an engine 2. The rotor 21 and the crankshaft 31 are set such that when a piston 32 is in the top dead center position or the like, salient poles 26a, 26c of the rotor 21 oppose U-phase poles 13U, so that the output torque of the stator 1 is the maximum at the maximum pass-over torque positionof the engine 2. When the engine 2 is stopped, U-phase coils 15U are energized, thereby stopping the salient poles 26a, 26c and the U-phase poles 13U in opposition to each other, and stopping the piston 32 at the maximum pass-over torque position. When the engine is started, W-phase coils 15W adjacent to the U-phase coils 15U are energized, and pass-over occurs with the maximum output of the maximum friction torque. 使用开关磁阻电机的起动机(1)的转子(21)直接连结于发动机(2)的曲轴(31)。转子(21)和曲轴(31)设定成：在活塞(32)位于上死点等位置时，转子(21)的凸极(26a、26c)与U相磁极(13U)相向，以使在发动机(2)的最大跨越转矩位置起动机(1)的输出转矩达到最大。在使发动机(2)停止时，向U相线圈(15U)通电，从而使凸极(26a、26c)与U相磁极(13U)相向而停止，使活塞(32)停止在