How an Ignition Coil Works
#1
Lexus Champion
Thread Starter
How an Ignition Coil Works
Here's what's inside an ignition coil and how it works to increase the voltage to fire a spark on your car:
Here's a few photos of the ignition coil.
Starting with the coil, removed from my Toyota Corolla:
An ignition coil is located on top of an overhead cam engine. Its responsible for increasing voltage from the car's 12V to the thousands of volts needed to fire a spark in the combustion chamber:
When chopped open you can see the coil and other layers, along with the center iron core:
Here are all the components inside the ignition coil:
Here's a system diagram of how the ignition coil works electrically:
Note its the voltage spike caused by varying the electromagnetic field that fires the spark, and not just the step up transformer itself.
Enjoy!
Here's a few photos of the ignition coil.
Starting with the coil, removed from my Toyota Corolla:
An ignition coil is located on top of an overhead cam engine. Its responsible for increasing voltage from the car's 12V to the thousands of volts needed to fire a spark in the combustion chamber:
When chopped open you can see the coil and other layers, along with the center iron core:
Here are all the components inside the ignition coil:
Here's a system diagram of how the ignition coil works electrically:
Note its the voltage spike caused by varying the electromagnetic field that fires the spark, and not just the step up transformer itself.
Enjoy!
#2
Lexus Fanatic
Thanks for the write-up. As reliable as Camrys have been over the years, that was one of their few problems.......igniters/ignition coils on the early versions.
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04-27-15 01:52 PM