Automotive engines are divided into four-cycle and two-cycle engines according to the working process and are divided by the method of fuel ignition into spark plug ignition engines (also known as carburettor engines or gasoline engines) and diesel engines, which are self-ignition engines using high-temperature air
Systems required to run the engine. There are three major engine systems necessary to keep an internal combustion engine running. They are the ignition system, the lubrication system, and the fuel system.
Different Types of Engine Systems
Basically, the engines are of two types, and these are external combustion engines and internal combustion engines. The cycle includes four distinct processes: intake, compression, combustion and power stroke, and exhaust. Spark ignition gasoline and compression ignition diesel engines differ in how they supply and ignite the fuel.
Main systems of an engine
Systems required to run the engine. There are three major engine systems necessary to keep an internal combustion engine running. They are the ignition system, the lubrication system, and the fuel system.
Internal combustion engines provide outstanding drivability and durability, with more than 250 million highway transportation vehicles in the United States relying on them. Along with gasoline or diesel, they can also utilize renewable or alternative fuels (e.g., natural gas, propane, biodiesel, or ethanol). They can also be combined with hybrid-electric powertrains to increase fuel economy or plug-in hybrid electric systems to extend the range of hybrid electric vehicles.
The basic modern automotive engine is a gasoline-burning, liquid-cooled, spark-ignition, four-stroke-cycle, multicylinder engine. It has the intake and exhaust valves in the cylinder head, and electronically controlled ignition and fuel injection.