Q
are there spark plugs in a diesel engine
I'm a seasoned industrial engineer with a keen interest in machine learning. Here to share insights on latest industry trends.
Diesel engines do not use spark plugs. Instead, they rely on compressed air's heat to ignite the fuel. During the compression stroke, air is compressed to a high degree, increasing its temperature. When diesel fuel is then injected into this hot, compressed air, it ignites. This process is fundamentally different from gasoline engines, which use spark plugs to ignite an air-fuel mixture. The absence of spark plugs in diesel engines contributes to their efficiency and durability, as the compression ignition process allows for a higher thermal efficiency. However, diesel engines use glow plugs to aid in cold starts by warming the combustion chamber, improving the conditions for ignition when the engine is cold.
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