What is the purpose of a magneto?

A magneto serves a crucial function in generating electrical current for ignition, particularly in engines. It operates by converting mechanical energy into electrical energy through electromagnetic induction. This process involves a rotating magnet that creates a magnetic field. When this field oscillates around a coil of wire, it induces an electric current.

This generated electrical current is essential for igniting the fuel-air mixture in ignition systems, making magnetos particularly vital in small engines, such as those found in lawnmowers, motorcycles, and certain aircraft. They are designed to operate independently of an external power source, making them reliable for starting engines in various conditions.

Understanding the function of a magneto in ignition systems highlights its importance in automotive and agricultural machinery, where reliable ignition sources are necessary for smooth operation.