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Difference between revisions of "Ignition system"
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The [[magneto]], invented in 1903 by German engineer Robert Bosch, combines most of the features of a battery/coil ignition system into a single unit. Driven directly from the engine, it performs the same functions as the coil and distributor of a battery/coil system. The magneto ignition has the advantage of generating its own power, eliminating the need for a battery. Therefore, a magneto is used on motorcycles where reducing weight is important, such as trail bikes. | The [[magneto]], invented in 1903 by German engineer Robert Bosch, combines most of the features of a battery/coil ignition system into a single unit. Driven directly from the engine, it performs the same functions as the coil and distributor of a battery/coil system. The magneto ignition has the advantage of generating its own power, eliminating the need for a battery. Therefore, a magneto is used on motorcycles where reducing weight is important, such as trail bikes. | ||
Magnetos operate on a very simple principle. An armature wound with a primary and secondary coil rotates between poles of a stationary magnet. As the armature rotates, current is "induced" in the primary winding when the contact breaker points are closed. When the breakers open, the magnetic field associated with the current collapses, and very high voltage is induced in the secondary winding. This voltage is discharged through the spark plug. | Magnetos operate on a very simple principle. An [[armature]] wound with a primary and secondary coil rotates between poles of a stationary magnet. As the armature rotates, current is "induced" in the primary winding when the contact breaker points are closed. When the breakers open, the magnetic field associated with the current collapses, and very high voltage is induced in the secondary winding. This voltage is discharged through the spark plug. | ||
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[[Category:Definitions]] | [[Category:Definitions]] | ||
[[Category:Electrical]] | [[Category:Electrical]] | ||