POWER-GENERATING DEVICE ALSO SERVING FOR STARTING IN TWO-CYCLE INTERNAL COMBUSTION ENGINE

摘要

PROBLEM TO BE SOLVED: To prevent the enlargement of a two-cycle internal combustion engine and at the same time prevent a reversal brought about immediately before stopping it by a second closed circuit formed of a starting coil through a closed second contact, a brush in contact and a commutator. SOLUTION: Immediately before an internal combustion engine is stopped, when a starter button is in an off-state and the NC contact of a starter relay is closed, a brush is in contact with respectively a predetermined large-diameter conductive path 121, a commutator piece 122 and a small-diameter conductive path 123 and a second closed circuit 2 is closed. Namely, a closed circuit is formed of a starting coil 133 through contact with a brush, a commutator piece or the like, and the rotation of an inner rotor 90 generates electromotive force in the starting coil 133, so that the starting coil 133 acts as a power generation coil. Therefore, a current flows into the second closed circuit and for that reason, braking torque is applied to the inner rotor 90 by magnetic friction. Accordingly, the reversal of a crank shaft 83 brought about immediately before a two-cycle internal combustion engine is stopped can be prevented by the braking torque.