General Construction of the Engine

An engine is a complex machine made up of many mechanisms and systems. Whether it is a gasoline engine or a diesel engine; whether it is a four-stroke engine or a two-stroke engine; whether it is a single-cylinder engine or a multi-cylinder engine, in order to complete energy conversion, realize a working cycle, and ensure long-term continuous normal operation, the following must be met: institutions and systems. The gasoline engine is composed of the following two major institutions and five major systems, that is, the crank connecting rod mechanism, the gas distribution mechanism, the fuel supply system, the lubrication system, the cooling system, the ignition system and the starting system; the diesel engine is composed of the above two major institutions and the four major systems , That is to say, it is composed of crank connecting rod mechanism, valve mechanism, fuel supply system, lubrication system, cooling system and starting system. The diesel engine is compression ignition and does not need an ignition system.