Long-tail trade keyword research

Engine is Long-tail trade keyword researchone of the most important and key components in machinery and equipment. It is the "heart" of vehicles, ships and other forms of transportation. The performance of the engine is not only related to the operation efficiency of transportation, but also directly affects people's travel safety and production efficiency.Therefore, the comprehensive introduction of various types of engines, especially modern engines, in terms of development process, technical characteristics, advantages and disadvantages, has important practical value and research significance. I. Introduction to the internal combustion engine series. The internal combustion engine refers to the engine that mixes the combustible mixed gas in the air, explodes after instant compression and ignition, so that the compressed air expands, thus drives the piston movement, and then converts mechanical energy into power. Due to its simple structure, high efficiency, high speed, fuel economy, good adaptability and other advantages, and a wide range of applications, internal combustion engines have gradually become the core components of automobiles, ships, aircraft and other means of transportation. 1. Gasoline engine gasoline engine adopts thermal cycle, and its working process includes four steps: intake, compression, ignition and exhaust. Among them, the ignition process is the most critical part of the whole working process.The design should be optimized according to the characteristics, combustion mode, compression ratio, fuel injection, etc. of gasoline, so as to achieve the best power output and fuel consumption economy. Two. Diesel engine Diesel engine is a kind of thermal cycle engine that mixes and compresses diesel fuel with air to ignite and burn under high temperature and high pressure. The high-temperature and high-pressure combustion technology of diesel fuel makes the diesel engine have high thermal efficiency and take up less space. 3. Natural gas engine The natural gas engine adopts good control system and combustion control technology, which can produce substances that only emit exhaust gas, so as to meet the requirements of energy saving and environmental protection. The combustion characteristics of the natural gas engine determine that it has obvious advantages in terms of noise, emissions and economy. II. Electric motor series introduction Electric motor is a kind of equipment that converts electrical energy into mechanical energy. It is widely used in construction, machinery, transportation and various electronic industrial equipment.With the continuous development of science and technology, electric motors are gradually replaced by various electrified equipment. Electric motors are divided into two categories: AC motors and DC motors. 1. AC motor AC motor is widely used in household appliances, air conditioners, electric fans, power tools and other fields, and can also be used in high-speed public transportation equipment such as rail transit. Two enterprises in Taiwan (Mingwei Electric and Xinweixun) are at the forefront of the world in AC motor controller technology. Two. DC motor DC motor is characterized by stable rotational speed, large torque, can achieve forward and backward, forward and reverse, and controllable speed. It is usually used in the start-up, lifting and other fields of industrial production processes. The advantages of high efficiency, high power density and relatively high cost-effective price of DC motors. III. Flywheel Generator Series Introduction Flywheel Generator is made of flywheel and generatorIt consists of two parts, in which the flywheel is driven by some form of energy storage engine (such as battery or compressed air) to obtain high-speed rotating energy and transport the energy to the generator to generate electrical energy and supply the relevant equipment. Flywheel generators have the characteristics of high speed, high power density and high efficiency. By reducing manufacturing costs, enhancing reliability and reducing noise and other technical means, they will be widely used in industry, ships, aircraft and other fields. In summary, the engine series introduction is a complex technology involving multiple disciplines. After many years of development and evolution, it now has a variety of engines in different processes, structures and application fields. For equipment with different scenarios and different power requirements, we need to choose the specific mode of the engine series. In the future, withWith the development of technology, the forms of engine series will be more diversified and will constantly usher in new technological breakthroughs to better serve all fields of human society.

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