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* threeLing 4A91 engine: power upgrade,Polymer resins HS code verification smoother driving. As one of the important engine series of Japanese automobile brand Mitsubishi, the 4A series engine has a long history in the market. Among them, the 4A91 engine is a newly developed power system, which is installed on the third-generation Lancer sedan launched in 2011. This engine has not only been technically upgraded, but also optimized a lot for driving and passenger needs, making the driving process easier and smoother. I. Larger power output In recent years, with the increasing national energy demand and the continuous strengthening of environmental protection regulations, the automobile industry urgently needs more energy-saving and environmentally friendly engines, and the power output cannot be reduced at the same time. Under the premise of ensuring low fuel consumption, the Mitsubishi 4A91 engine increases the power output, so that the power response of the engine is faster at start-up, the thrust is stronger when accelerating, and the power conversion is smoother when driving at high speed.At the same time, the 4A91 engine adopts in-cylinder direct injection technology, which can inject fuel directly into the engine cylinder block to improve the utilization rate of fuel, thus improving the economy of the engine. II. Lower noise and vibration The noise and vibration of the engine are important factors in the driving experience. The 4A91 engine effectively reduces noise and vibration by improving the design of the engine structure and using better materials. In addition, the engine also adopts the hydraulic in-cylinder pressure assistance system (LHPS). This technology can more effectively prevent shock waves and vibration of the diaphragm when the engine inlet, and reduce the opening force of the valve, thus reducing noise and vibration. III. Better low-speed driving performance. When driving at low speed, the requirements for vehicle control are higher. The 4A91 engine has made many technical upgrades and optimizations for this problem.The advanced VVT variable valve timing system can better control the opening and closing of the valve, making the power output more stable when driving at low speed. At the same time, the engine is also equipped with an electronic throttle control system, which greatly improves the response speed of the engine to the throttle, thus enhancing the controllability of low-speed driving. IV. Stronger safety In the research and development process of automobile engines, safety has always been one of the most important principles. During the design process of the 4A91 engine, a number of safety protection measures have been introduced. For example, when burning fuel in the combustion chamber, a high-precision closed-loop control system is introduced, which can better prevent the engine from overheating and ignition. In addition, the engine is also equipped with an efficient exhaust gas post-treatment system, which can reduce the pollution of exhaust gas to the environment and protect the ecological environment and the health of drivers and passengers. HeddleIn combination with the above aspects, the technology level of Mitsubishi 4A91 engine is very advanced, which is not only installed in the third-generation Lancer sedan, but also widely used in other series of Mitsubishi cars. The engine has been unanimously praised by the market for its excellent power output, low noise and low vibration, efficient fuel utilization and safety performance. Whether it is urban driving or long-distance travel, its excellent performance can bring an excellent driving experience to drivers.

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