Engines
1. The engine is composed of two major mechanisms, the crank linkage and the gas distribution mechanism, and five major systems, such as cooling, lubrication, ignition, fuel supply, and starting system. The working principle of the engine is intake-compression-injection-combustion-expansion-work-exhaust. Most modern automobiles use a reciprocating piston internal combustion engine, which burns fuel inside the engine cylinders and converts the resulting heat energy into mechanical energy. Engines play a vital role in modern life and industry, and their efficient operation directly affects the performance and efficiency of mechanical equipment. Different types of engines have advantages and disadvantages according to their design and purpose, and the choice of the right type of engine depends on the specific needs of the application. 2. Engines have many different application scenarios, depending largely on their type and design. Engines are used in a wide range of automobiles, trucks, motorcycles, and other land vehicles to provide power to drive the vehicle. Engines are used to propel ships, including commercial vessels, yachts, fishing boats, and more.
