Diesel engines rely totally on compression. Therefore they do not need the explosive ignition of a spark plug. However, some of them do use glow plugs to help with cold running. A glow plug looks a lot like a spark plug but it is continuously hot.
Gasoline engines are spark ignited engines. There is no combustion of the gasoline in the cylinder without a spark created by a spark plug.
Diesel engines are compression ignited engines. The heat from the tremendous compression of the diesel fuel actually causes the combustion to occur.
Glow plugs are only an aid to help a cold diesel engine....see http://en.wikipedia.org/wiki/Glowplug
Because diesel's have glo plugs which ignite the cylinders in the combustion chamber.... hope this helps
they use heat and pressure to ignite the diesel air mixture, via glow plugs.
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Diesel engines rely totally on compression. Therefore they do not need the explosive ignition of a spark plug. However, some of them do use glow plugs to help with cold running. A glow plug looks a lot like a spark plug but it is continuously hot.
Gasoline engines are spark ignited engines. There is no combustion of the gasoline in the cylinder without a spark created by a spark plug.
Diesel engines are compression ignited engines. The heat from the tremendous compression of the diesel fuel actually causes the combustion to occur.
Glow plugs are only an aid to help a cold diesel engine....see http://en.wikipedia.org/wiki/Glowplug
Because diesel's have glo plugs which ignite the cylinders in the combustion chamber.... hope this helps
they use heat and pressure to ignite the diesel air mixture, via glow plugs.