"The CA6DL1 and CA6DL2 series IV diesel engines are independently developed through the use of high-pressure common-rail+SCR and high-pressure common-rail+EGR+POC two-country IV technology routes. Through scientific and technological appraisal, the use of electronically controlled cooling EGR technology in medium- and heavy-duty commercial vehicles is realized. IV emissions are innovations..." This is an appraisal comment given by experts at FAW's China FAW CA6DN, CA6DM, CA4/6DL, and CA4/6DF IV Series Diesel Engines recently held by FAW Jiefang Company Wuxi Chai. It is reported that this Xichai eight national IV series products passed the provincial new product appraisal of Jiangsu Province and the scientific and technological achievements appraisal of Wuxi City.
An appraisal committee composed of experts from more than ten domestic high-level research institutions such as experts and academicians of China Internal Combustion Engine Institute has reviewed the technical documents of eight countries' IV series products, heard technical project reports, conducted live diesel engine prototype assessments, and diesel engine performance. Emission test, as well as questions and answers to the technical problems related to the eight countries' IV series products, the expert group made a high evaluation and affirmation of the eight countries' IV series product technology. The appraisal committee unanimously held that the eight countries' IV series products are mature and reliable, and have good application prospects and promotion conditions. In particular, the national IV series diesel engines such as CA6DN1, CA6DM2, CA6DL, and CA4DL1 adopt the SCR technology route and have applied the most advanced domestic technologies. Electronically controlled common rail diesel engine OBD calibration technology; CA6DL1, CA6DL2, CA6DLD and other national IV series diesel engines have adopted SCR and EGR+POC dual technology routes for independent development, and applied the most advanced electronically controlled common rail diesel engine OBD calibration technology in China. The "three-high" calibration of the vehicle has reached the national IV standard. The expert group of the appraisal committee stated that the eight countries' IV series products have passed independent research and development and have independent intellectual property rights. The whole machine technology has reached the domestic leading level, and they all agreed to pass the provincial new product appraisal of Jiangsu Province and the scientific and technological achievements appraisal of Wuxi City and can be put into production.
The eight national IV series diesel engines passed this certification are all adopting high-voltage electronically controlled common-rail fuel injection system. The power coverage can reach 130-500 hp and the maximum rail pressure can reach 180 MPa. The newly developed combustion system can ensure the efficient and clean burning of fuel. Compared with similar products, the major performance indicators of the products are at the international advanced level.
The appraisal of the new products of the 8 countries IV not only marks that FAW has formed series IV products centering on “Aowei†engines, but also marks a breakthrough in the independent research and development technology of FAW engines and increased market competition. Advantage chips.
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