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Near the end of the year, a notice regarding the emission of heavy-duty diesel (MCV) products from China III, “Notice on Reporting State III Emissions of Heavy-duty Diesel Vehicle (Machine) Products†(hereinafter referred to as “Noticeâ€), was sent to each Host plant, oil pump nozzle enterprise hands.
In the "Notice" issued by the Technical Service Center of Zhong-Ming Vehicle and requesting the approval of the Ministry of Industry and Policy of the Ministry of Industry and Information Technology, it is required that products that apply to the GB17691-2005 standard (National III-Phase) be capable of being precise when used with electronic control technology. Control of fuel injection timing and fuel injection quantity; using high injection pressure of the oil supply system, injection pressure not less than 1400 bar (injector end, the same below); use of pressurized intercooled air intake system; no tail gas discharge machine outside purification When dealing with the four characteristics of the device, it can be declared in accordance with the original “Announcement†requirements. Typical products are electronically controlled diesel engines using high pressure common rail or single pump or pump nozzle system. When the declared product does not have the above-mentioned characteristics, the online application part of the report must provide the ETC test NOx screening test report in addition to the report on the regular emission test items (for the products that have been declared before the issuance of the "Notice", the test report If the result of the ETC NOx screening test is not included, a full test report must be submitted by December 31, 2008).
Behind the "notice" is actually raising the threshold of detection for EGR engines. How will this affect the diesel engine companies that have EGR engine products? Does this mean that the Ministry of Industry and Information Technology will re-examine the current State III engine? What will happen to the diesel engine market in 2009?
Little impact on engine companies
The reporter of the "Commercial Automotive News" learned from the interview that the "Notice" had little impact on the diesel engine companies. Providing the ETC test NOx screening test report did not become a technical threshold for diesel engine companies to overcome, and the company's normal reporting work did not result in this. affected.
"We are the first to use high pressure common rail systems," said Li Hongzhen, director of the Hangzhou Power Technology Research Center at China National Heavy Duty Truck Technology Center. However, due to the inability of the common rail system to meet market demand, the company has gradually developed an EGR engine. The EOT test NOx screening test report has been provided to relevant departments according to the requirements, and no difficulties have been encountered in the entire process."
The staff of Shanghai Diesel Engine Co., Ltd. introduced: “The company started research and development of EGR diesel approximately six months ago. It was just announced in November and the “Notice†was issued. As the company’s product application announcement did not provide ETC test NOx screening test report, in order to comply with The Notice requested that we then provide these reports."
In addition, staff of Guangxi Yuchai Machinery Co., Ltd. also stated that the company's National III emission diesel engine has an ETC test NOx screening test report. In response to this phenomenon, industry insiders believe that: "Although the "Notice" is more inclined to use high-pressure common-rail diesel engine and put forward higher detection requirements for EGR engines, but enterprises will not abandon the development and production of EGR engines, government-oriented measures It will take a while to make a difference."
Step up development of EGR
Although the government department has put forward more testing requirements for EGR diesel engines, due to the various advantages of EGR diesel engines, the "Notice" does not affect many diesel engine companies to launch EGR projects.
Industry sources told reporters: "In contrast to the previous heavy-duty engine occupies the EGR engine market, except for Chaochai (using the Bosch economical common rail system), the main engine manufacturers are fully developing EGR engines, and basically all are planned for 2009. The development work is completed in the quarter, for example, Yuchai's 6M, 6L, 6J, 6A EGR models will be completed by the end of December 2008, 4D, 4E EGR models are scheduled to be prototyped in January 2009, Weichai WD615 EGR models are currently preparing to apply for relevant information on the discharge list. It is reported that FAW R & D's built-in EGR III engine has passed the bench test, is applying for type approval, and will soon be put into production.
This not only means that customers can get more choices, but more importantly, the company will not lose part of the market share because there is no EGR product. Li Hongzhen told reporters: “We will provide diesel engines that meet customer requirements based on the market situation, and we will not stick to a particular type.†Industry insiders expect that in the future, Hangfa Motors will use EGR technology to account for 80% of its total engine capacity in China III. the above.
A relevant person in the Strategic Planning Department of Guangxi Yuchai Machinery Co., Ltd. stated that currently, Yuchai's main models match the common rail system and single pump system for users to choose. “We recommend different products to customers in different market segments. The common rail system has good comfort and high stability, but it has high requirements for oil products and use and service. It is recommended for high comfort requirements and oil quality. Guaranteed occasions, such as road transport models; single-pump oil products are better than common-rail systems, and their use and service requirements are relatively low, but their comfort is somewhat poor. Stability at this stage is not as good as common-rail systems. It is recommended Construction vehicle market."
View Related Topics: Heavy Trucks Popular Focus - Common Rail? Or EGR