THE BEECHMONT CREST AUTOMOTIVE LEARNING ZONE
Engine Ignition Type
There are two types of engine ignition methods: spark ignition and compression ignition.
In a spark ignition engine, the fuel in the engine is ignited with an electric arc at the tip of the spark plug. Gasoline engines use spark ignition.
A compression engine has no spark plugs. Fuel combustion occurs when the air in the combustion chamber is compressed until it is hot enough to ignite the fuel. Compression ignition is used in diesel engines.