Recently, a number of major breakthroughs have been made in the study of key diesel engine technologies. This not only laid the foundation for the study on key technologies of diesel engines in our country, but also brought about good social and economic benefits as well as environmental benefits. Key Technology of Diesel Engine Aftertreatment System "Twelfth Five-Year" 863 plan to support the "meet the Euro VI emission standards for diesel engine after-treatment key technology research," the successful implementation of the project, to fill with independent intellectual property rights to meet the Euro VI emission standards exhaust diesel exhaust after-treatment integrated technology And product gaps, and achieved good social and economic benefits. It is reported that, according to the research plan, based on the full investigation of the domestic and foreign diesel engine aftertreatment technologies, based on the DOC (oxidation catalytic converter), SCR (selective catalytic reduction) and soot combustion reaction mechanism, completed the DOC, SCR and CDPF (Diesel particulate filter with catalytic coating) catalyst coating to form a catalyst solution to meet the target performance, and completed the amplification of DOC and SCR production and performance verification. In terms of vector production, through the screening of raw materials and optimization of processes, the R & D of 13-inch large carriers and particle trap carriers has been partially completed, breaking the monopoly of imported products. Our country possesses the function of post-processing system with independent intellectual property rights. Its performance has already partly caught or reached the level of advanced products of the same kind in foreign countries and broke the passive situation of long-term dependence on technology or product imports. The project also successfully implemented the national "first set" and other policies, the demonstration application and industrialization combine to promote the use of independent innovation products to explore, practice, "production, learning, research, and use of" collaborative innovation Mode, improve China's diesel engine after-treatment technology comprehensive strength. Energy efficient and environmentally friendly car diesel engine "Twelfth Five-Year" 863 plan to support the "energy-efficient environmentally friendly car diesel engine research and development" project has also made a major breakthrough. The project adopted such technologies as high pressure common rail, variable nozzle turbocharger, cooling exhaust gas recirculation and active regeneration of particle traps. By optimizing the combustion chamber design, optimizing engine structure design and reducing engine frictional resistance, Power and economy; significantly reducing pollutant emissions and engine vibration and noise through the use of multiple injection, advanced aftertreatment system controls and more. It is understood that the results show that the project developed engine power reached 57.5 kilowatts / liter, torque up to 175 Nm / liter, the engine performance to achieve or better than similar foreign products, reached the world advanced level, to fill the gaps, as Promote the domestic passenger car diesel process, reduce the average fuel consumption of passenger vehicles to make technical preparations. In addition, matching the engine's fuel consumption of the vehicle can be lower than the national third-phase fuel consumption standards of 15%, emissions reached the level of five countries, for the automotive industry to achieve energy-saving emission reduction targets to contribute. Key Technology of High Pressure Common Rail Heavy Duty Diesel Engine National 863 plan to support the "high-pressure common rail heavy-duty diesel engine key technology" project, but also achieved initial results. The project designed and developed a high-pressure common rail pump with an injection pressure of 180 MPa and a common rail pipe that meets the requirements. The performance test was carried out on a cold-towing test bench and a bench test was carried out on the engine. Rail fuel system key components and key technology research and laid a good foundation for technology. At the same time, the project also developed and researched a number of successful projects, including 32-bit microcomputer hardware and basic software based on multi-core, completed the A + sample bench and the three high test to achieve better control effect; CDPF Diesel Particulate Filter) regenerated catalyst coating to meet the purifying control of the THC (total hydrocarbon) and CO (carbon monoxide) in the regeneration stage to develop a molecular sieve type SCR (Selective Catalytic Reduction) suitable for use with the CDPF system and achieve small Mass production; VNT (variable nozzle turbocharger) turbocharger technology for EGR (exhaust gas recirculation) technology, two-stage booster technology research and turbocharging system control and regulation strategy, and to achieve the installation application.
Electric balance scooter is also called somatosensory vehicle and thinking vehicle. It represents technology and fashion. It has many benefits, such as fashion and leisure, balance exercise, transportation, environmental protection and low carbon, etc., especially for people who are prone to congestion on commuting. , The balance car is said to be able to solve the embarrassment of the last mile and make people travel more convenient.
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Nowadays, young people are pursuing unconventionalism. Naturally, they regard the trendy thing of electric balance bike as a new "toy". Many of them will gather in a small car club to show off their own cars and attractive appearance. , Cool dress is a topic of discussion. Go out to brush the street together, show special effects, and brighten up everyone in the square. Those who die will even advertise how fast their car is and move instantaneously on the road. This kind of people will choose a car with a good-looking appearance. At this time, the value of the electric balance car is mainly reflected in the cool appearance.
Its compactness and portability make it a means of transportation in certain occasions. At the same time, the electric drive of the electric unicycle gives it the mission of green transportation. Its widespread popularity is important for the construction of civilized cities and the improvement of the living environment. significance. If you drive a private car every time for short-distance trips such as commuting to get off work, shopping, and walking around, it will not only consume fuel and pollute the environment, but also frequently encounter various traffic jams, which will delay a lot of time. Electric balance bikes save consumers a lot of fuel costs and time. If you want to go to the vegetable market a few blocks away to buy groceries, and it was too far and tired in the past, are the following two very wise?