A brief talk about the internal combustion engine
Today's engines are mainly internal combustion models that convert fuel combustion thermal energy into mechanical energy. The internal combustion engine is widely used due to its small size and weight, strong and stable power, and good economy after improvement. However, it has disadvantages such as a precise and complex structure, high failure probability, and environmental pollution. Before the internal combustion engine, the steam engine was widely used but had problems like a huge mechanism and low thermal efficiency. Over the past 100 years, various internal combustion engines have been invented, with different piston movement modes, fuel uses, ignition modes, and cylinder arrangements. The supercharged engine is becoming more widespread. The main internal structure of the internal combustion engine includes the crank connecting rod mechanism, gas distribution mechanism, fuel supply system, cooling system, lubrication system, ignition system, and starting system. The power of the engine comes from the piston's reciprocating motion, and in a four - stroke engine, only the power stroke generates power. The internal combustion engine has been used for over 100 years, promoting equipment mechanization, automation, and the development of vehicle and ship power devices, and changing the way humans use and convert energy.
