Navier achieves China's promotion of advanced power technology

The four emission standards for commercial vehicles that were originally scheduled for implementation on January 1, 2012 have been postponed to July 1, 2013 for various reasons. In a year and a half, we did have a lot of time for our auto manufacturing companies and oil production companies. However, protecting the environment and reducing emissions are the general trend. Therefore, bringing together the world's advanced and mature engine technology and using it for my own purposes is a very urgent issue for China's engine manufacturing companies.

On February 13, 2012, the United States Navistar Corporation held a media meeting in Beijing to fully and systematically introduce the US transition from EPA 2007 (equivalent to Euro V) to EPA 2010 (equivalent to Euro VI) and the company’s maturity. Engine technology.

Ms. Lei Ning, China Science and Technology Director of Navistar Group, told the reporter that Navistar is the largest manufacturer of trucks and school buses in the United States. It is also a leader in the South American engine market, and has a wealth of engine research and development, manufacturing. experience. Navistar hopes that its own technology will help China to manufacture products that meet the national emission requirements, have extensive adaptability, and are relatively inexpensive.

Lenin first introduced Navistar’s global product development capabilities. “Before 2011, our R&D technology center was mainly located in North America, scattered in different cities. There are two main ones: One is our truck design and technology center in Indiana. It was established in 1951 and has more than 1,800 engineers. There is also an engine company and technology center that was founded in 1946. It is located in the western suburbs of Chicago. In 2011, we integrated the technology centers and technology development teams throughout North America and focused our product development technicians in North America. A new design center in the suburbs of Lisle, a suburb of Chicago, where we have more than 2,000 engineers integrated to facilitate the exchange of engineers from all departments, which has improved our efficiency. The engine research center has been improved to become a new test and verification center for engines and vehicles."

It is reported that Navistar has several regional technical centers around the world, such as Brazil and India. In the planning of Navistar, technology centers will be set up in China and Europe in the future.

Turning to the technology for reducing emissions, Renning said there are two main categories. One is how you can burn it cleaner and the engine is burning. The cleaner the engine burns, the cleaner it will be. If you can't burn clean, you must do post-processing. So these two technologies are very important for manufacturers, and they all need to be done. Renin also told reporters that Navistar spent a lot of energy and achieved results in combustion technology.

"In the combustion process, how does oil get into the engine? How fine should the atomization of the oil be? How many times should it be sprayed? The process of fuel injection, the effect on noise, the completeness of combustion, etc. Said that the fuel injection technology is very important.” Lei Ning also said that the U.S. fuel injection technology and the European high pressure common rail technology, the biggest difference is that the latter is through the high pressure pump to the oil pressure, and then into the spray In the nozzle, the former only needs to be improved at the nozzle, and the oil that needs to be injected is pressurized. The result of this is not only that the price is relatively low, but also that the requirements for oil products have relatively wide adaptability. Therefore, it is the best choice for today's Chinese market.

“We have a very characteristic high pressure common rail fuel injection system. This system is indeed very useful for the Chinese market because the quality of diesel in China is not very uniform. Some places are good and some are not very good. The fuel injection system is very Flexible, able to endure different oils, the cost is relatively low." Lei Ning introduced.

In addition, Lenin introduced Navistar's leading technologies in combustion chamber design, air intake system, control system, EGR (Exhaust Gas Recirculation System) and SCR (Selective Catalytic Reduction System). . "In short, Navistar hopes to use its own strengths to cooperate with Chinese companies to develop low-cost products that can adapt to the needs of the Chinese market." Prior to the end of his speech, Rachel Ning expressed the good intentions of Navistar to the media.