Magneto low speed energizer

Abstract

The invention relates to a low-speed energy accumulation device for a magnetic motor. The low-speed energy accumulation device comprises a centrifugal mechanism, a volute spiral spring and a shell, wherein the centrifugal mechanism comprises a shaft sleeve and a fixed plate arranged at one end of the shaft sleeve; two centrifugal blocks with the same shapes are arranged on the fixed plate, and can rotate around mounting shafts; pawls are arranged on the centrifugal blocks; a through hole and two symmetric bulges are formed on the shell; the shaft sleeve passes through the through hole, and is connected with a rotor shaft of the magnetic motor; two ends of the volute spiral spring are fixed with the shaft sleeve and the shell respectively; and the bulges penetrates through the fixed plate of the centrifugal mechanism, and are contacted with the pawls of the centrifugal blocks. The low-speed energy accumulation device can accumulate energy through the spring, so that the rotating speeds of the shafts of the magnetic motor are increased at the moment of ignition, and the problem that an engine has low rotating speed during starting; therefore, the ignition energy of the magnetic motor is sufficient; and the low-speed energy accumulation device has a simple structure, and is small in volume.

Description

technical field [0001] The invention relates to an energizing device, in particular to a low-speed energizing device for a magneto. Background technique [0002] The magneto ignition process of the existing aircraft is that the crankshaft of the engine drives the rotor of the magneto to rotate through the transmission gear. During the rotation, the magnetic flux in the rotor magnetic steel and the soft iron changes, causing the primary coil wound on the soft iron to generate an induced electromotive force. , the primary circuit generates an induced current, and when the induced current reaches its maximum value, the contact point of the interrupter disconnects the primary circuit. At this time, due to the rapid change of the magnetic flux, a high-voltage induced electromotive force is induced in the secondary coil. However, since the rotational speed of the engine is very low when the engine is just started, the ignition energy of the magneto is insufficient. If the number o...

AI Technical Summary

Problems solved by technology

However, since the speed of the engine is very low when the engine is just started, the ignition energy of the magneto is insufficient. If the number of turns of the secondary coil of the transformer is increased, the magneto will be too heavy. Therefore, the aircraft often needs to be equipped with a special ignition coil for ground starting.

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