Recently, the Ministry of Industry and Information Technology formulated the "Twelfth Five-Year Plan for Industrial Energy Conservation ". Among them, the internal combustion engine system energy-saving project mentioned that the advanced internal combustion engine manufacturing process and materials are used to optimize the matching technology between the complete machine and the supporting machinery, and the exhaust gas turbocharging technology is vigorously promoted, and the electronically controlled fuel high-pressure injection system, high-efficiency supercharger and key are mainly supported. The development of the parts industry. By 2015, the fuel consumption rate of internal combustion engine products will be 10% lower than that of 2010, and the energy-saving internal combustion engine products put on the market will account for 20% of the market.
At present, many manufacturers have used turbo technology. Volkswagen is the first car company to market a small-displacement turbocharged engine . Its TSI+DSG combination has been sought after by the market, and its products have been in short supply. BYD, Great Wall, Brilliance, SAIC, Chery and other independent brands have also launched turbocharged engines, Chery is developing a 0.8T turbocharged engine. GM is developing a 3.6-liter twin-turbo engine, and even the BMW brand, which has always adhered to a naturally aspirated engine, is also developing a twin-turbo engine.
Turbocharged engines rely on turbochargers to increase engine intake , thereby increasing engine output. Its biggest advantage is that it does not increase the displacement, greatly improve engine power and torque, improve fuel economy and reduce exhaust emissions. The data shows that the use of turbocharging technology can help gasoline and diesel vehicles save 20% and 40% respectively without reducing performance. At the same time, significant cost savings can be achieved compared to hybrid and electric vehicles.
In the past few years, the state has introduced a number of policies to increase the funds to encourage the development of electric vehicles, but the market has very few sales. Later, the national adjustment policy paid equal attention to energy-saving vehicles and new energy vehicles. As long as it helps to reduce fuel consumption and emissions, various technologies will be allowed and encouraged. Wang Binggang, a special science and technology special expert of the 863 Program of the Ministry of Science and Technology, said that the country will focus on developing four technologies, one of which is advanced powertrain and vehicle technology, such as advanced engines and gearboxes. . The small-displacement turbocharged engine achieves energy savings while reducing emissions and fuel consumption, which is undoubtedly the most desirable.
Some foreign companies expect the global turbocharged engine market to double its sales in the next five years. In 2009, the global sales of turbocharged engines totaled 17 million units. In 2015, this number will reach 35 million units. It is estimated that by 2015, the share of turbocharged engines in China will increase from nearly 10% to 20%.
The "12th Five-Year Plan for Industrial Energy Conservation" also mentioned that it will promote technologies such as high-pressure fuel injection, supercharging, exhaust gas aftertreatment, high-efficiency filtration, low friction and high sealing to improve the overall efficiency of internal combustion engines and reduce the fuel consumption of internal combustion engines. . It is expected that with the support of national policies, the future of small-displacement turbocharged engine models will become a trend.
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