The car engine is a machine that provides power to the […]
The car engine is a machine that provides power to the car, and is the heart of the car, which affects the power, economy and environmental protection of the car. According to different sources of power, automobile engines can be divided into diesel engines, gasoline engines, electric vehicle motors, and hybrids. Common gasoline engines and diesel engines are reciprocating piston internal combustion engines, which convert the chemical energy of the fuel into mechanical energy for piston movement and output power to the outside. Gasoline engine has high speed, low quality, low noise, easy start, low manufacturing cost; diesel engine has large compression ratio, high thermal efficiency, economic performance and emission performance are better than gasoline engine.
In addition to using gasoline and diesel, vehicles that use other new energy sources are called new energy vehicles, including pure electric vehicles, hybrid vehicles, fuel cell vehicles, gas vehicles, bioethanol/biodiesel vehicles, and hydrogen-powered vehicles. Most of the new energy vehicles on the market in my country are hybrid vehicles, but pure electric vehicles have been the main focus.
The engine is the heart of the car, providing power for the car's walking, and it is related to the power, economy and environmental protection of the car. Simply put, an engine is an energy conversion mechanism, that is, the thermal energy of gasoline (diesel) or natural gas is converted into mechanical energy by burning gas in a sealed cylinder to push the piston to work, which is the basic principle of the engine. All the structures of the engine serve for energy conversion. The engine has been with the car for more than 100 years. It has been greatly improved in terms of design, manufacturing, craftsmanship, performance and control, but its basic principles are still No change. This is an era full of creativity. Those engine designers continue to integrate new technology with the engine, turning the engine into a complex mechatronics product, and making the engine performance nearly perfect. Automobile manufacturers also regard engine performance as a competitive highlight. Today's automobile engines not only focus on the embodiment of automobile power, but also pay more attention to energy consumption, exhaust emissions and other aspects related to environmental protection, so that people can enjoy the automobile culture at a leisurely pace. It can protect the environment and save resources.