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Magnetos. Welding and Small Gas Engines. Original Power Point Created by Eric Haselhurst Modified by Georgia Agricultural Education Curriculum Office June 2002. How do you get the spark?. Large engines get electricity via a battery and alternator combination.

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magnetos

Magnetos

Welding and Small Gas Engines

Original Power Point Created by Eric Haselhurst

Modified by Georgia Agricultural Education Curriculum Office

June 2002

how do you get the spark
How do you get the spark?
  • Large engines get electricity via a battery and alternator combination.
  • Lawnmowers for example, get electricity from a magneto.
  • You need electricity to create the spark for the combustion process.
how do you get the spark3
How do you get the spark?
  • A magneto is an electrical generator that creates periodic high-voltage.
how do you get the spark6
How do you get the spark?
  • A magneto consists of five parts:
    • an armature
    • primary coil
    • secondary coil
    • electronic ignition
    • permanent magnets attached to the flywheel
how do you get the spark7
How do you get the spark?
  • When the magnets spin past the armature, they induce a magnetic field.
  • High voltage is achieved between the second primary coils to reach the voltage for the engine to function properly.
references
References

www.howstuffworks.com