Diesel engines are known as compression ignition as opposed to gas engines that are spark ignition. These engines operate in much the same way that gasoline engines do. Suck, squeeze, bang, blow still apply. The major difference is that there are no spark plugs. Instead there are glow plugs. These devices warm the air/fuel mixture before it enters the combustion chamber. The mixture is burned once it is sufficiently compressed in the cylinder.

Advertisements