Heavy truck market
With the Dongfeng Cummins EGR 3 engine surfaced, the last major domestic heavy-duty diesel engine plant was also involved in the domestic EGR storm.
The reporter recently learned that various heavy-duty trucks such as Dongfeng commercial vehicles equipped with Dongfeng Cummins EGR engines, Dongfeng Liuzhouo vehicles equipped with Yuchai EGR engines, and Jiefang J5 assembled with Xiebu EGR models have been put into operation in batches in the terminal market. The technical routes are built-in exhaust gas recirculation routes.
What is more dramatic is that SAIC's heavy trucks have not only equipped with Weichai's external EGR engines but also have built-in EGR models. “External EGR heavy trucks have started small-scale production, and the built-in EGR vehicle products have been loaded, but they have not been reported on by the Ministry of Industry and Information Technology,†said an Shaanxi Auto automaker who declined to be named.
With the increase in the number of OEMs that use built-in EGR (exhaust gas recirculation) technology, the escalation of EGR from last year has continued to dramatically evolve. Both built-in and external models have begun to compete in court. In 2009, the heavy-duty truck market was really submerged. EGR in the ocean.
Built-in, external EGR engine
Since the heavy vehicles in the first half of 2009 provoked the battle of the electro-mechanical Pump + waste gas recycling nation 3 technology line, the country's 3 heavy truck market was clearly tilted toward favoring heavy-duty trucks in the second half of last year. According to the data from the China Association of Automobile Manufacturers, the heavy-duty trucks have been reelected to the heavy-duty card market NO. 1 for more than 14 tons for consecutive months.
In order to meet the challenges of heavy-duty trucks, major heavy-duty truck companies and engine companies have successively launched EGR R&D projects at different times of last year. When these projects came to the surface early this year at the end of last year, the reporter noted that in addition to the external EGR route, many domestic companies have also chosen to develop built-in EGR technology.
The first type is an external EGR route. Typical features of electromechanical pumps and cooled exhaust gas recirculation technology are represented by heavy-duty trucks and Dachao Deutz. Electronically controlled EGR valves and electronic control units are installed outside the engine case, according to the clockwise operating conditions and exhaust gas control electromagnetics. Valve opening to meet the national 3 emission standards.
The second type is the built-in EGR route. The technology accurately measures and controls the mechanical operation of the engine camshaft so that the cylinder exhaust valve maintains an opening of 3% to 6% during intake, so as to achieve the effect of mixing the spilled exhaust gas and the intake air in different proportions, so that the engine discharges. Realize country 3. Representative companies include FAW Xichai, Yuchai and Dongfeng Cummins. “As far as I know, the division of labor of FAW Group is that the medium-power diesel engine adopts external EGR technology, which is mainly produced by its Dachao Deutz joint venture; high-power diesel engines take the built-in EGR route and Wuxi Diesel Engine Factory is responsible for it.†An informed source revealed.
The third category is Weichai, which belongs to “Neither head is wrongâ€. It has developed both external EGR engines and built-in EGR engines. Some people think that the external EGR machine is more than 10,000 cheaper than the high pressure common rail machine. The cost of the built-in EGR model is lower than that of the external EGR. In this way, Weichai can be flexibly based on user needs and geographical areas. Variability, to promote their own built-in or external EGR products.
Who can come after?
In the NDRC and the Ministry of Environmental Protection's announcement on the management of automotive products, the EGR technology is the same as the PV electronic distribution pump. It is an atypical country 3 route. When the engine reporting country 3 announces it, it must not only strictly scrutinize it as a case, but must also prepare and report in detail. A variety of complex technical materials.
Even after the Ministry of Industry and Information Technology opened an atypical network of technical routes in the second half of last year, the Ministry of Environmental Protection still adhered to the bottom line. As a result, the EGR 3 diesel engine passed the environmental test of the Ministry of Environmental Protection after it passed the bench test and was notified by the Ministry of Industry and Information Technology. This means that vehicles equipped with EGR engines cannot be sold in large cities such as Beijing that use the environmental catalog as a basis for licensing.
"As far as I know, no matter whether it is a built-in or an external EGR engine, except for heavy truck, because of its early launch, it has grabbed an initiative, and none of the other manufacturers have passed the environmental protection catalog of the Ministry of Environmental Protection." Told reporters.
For this reason, heavy-duty EGR engines are still at the top of the list despite the availability of EGR products. It is understood that SAIC Iveco Hongyan recently reached a strategic cooperation agreement with CNHTC to assemble heavy-duty truck EGR engines on the low-end Hongyan products. However, from the mid to long-term perspective, whether CNHTC can maintain its position as the top spot depends on the degree of adaptation and user acceptance of various EGR heavy truck products under various operating conditions.
Industrial Valve Co., Ltd. , http://www.cn-sanitaryvalves.com