Diesel Generator Engines
Without getting too technical, there are significant differences between diesel-fueled and gasoline-fueled engines.
In a diesel engine, air is compressed during the compression stroke of the piston and fuel is injected into the hot, compressed air in the cylinder, spontaneously igniting the fuel. Because of this, the diesel engine is sometimes referred to as a compression engine. In a gasoline engine, a vaporized mixture of gasoline and air is compressed in the combustion chamber and ignited by a spark plug. For this reason, it is sometimes referred to as a spark ignition engine.
A diesel engine also has a much higher compression ratio of the air/fuel mixture. This higher ratio means that that they must be heavier and tougher. We’ll discuss how that affects your diesel generator next..