Yuchai SCR environmental technology reliable, leading for shares in the company bus diesel SCR Technology China Adaptability Study of through the acceptance of

Energy saving and environmental protection is a hot topic in the current economic development of the world science and technology. Recently, Yuchai Company Engineering Research Institute to carry out to investigate SCR post processing technology of high sulfur diesel fuel in the applicability of the SCR Technology of Bus Diesel Engine Chinese adaptation of "project successfully passed the acceptance of the expert group. From the State Environmental Protection Department of motor vehicle emissions control center, Guangdong Provincial Communications Department, Wuhan University of technology, South China University of technology, Guangxi University, Guangxi Automobile and Tractor Research Institute of the experts agreed that Yuchai SCR Technology Application in China of the prospective study, this topic research applied in Chinese market of high sulfur diesel and Yuchai production higgo lubricating oil, add blue reducing agent. The experimental results show that the SCR technique can be adapted to the current state of China's oil, provides a powerful reference basis for timely implementation of Euro 4 emission regulations.

It is reported that the diesel engine SCR technology has two important advantages of relatively insensitive to high sulfur diesel and diesel engine to maintain good economy, is the best technology to meet the 4 standards. But because foreign SCR technology is based on the application of 4 fuel sulfur content of less than 50 ppm of Europe and the SCR system control strategy, is in accordance with the European countries vehicle driving conditions to develop, and in most parts of our country cannot currently supplies the European 4 fuel, which restricts the regulations of the four countries in the implementation of, the SCR technology can be applicable to high - sulfur diesel and need to study. Yuchai is the first domestic R & D of 4 heavy diesel engine diesel engine manufacturing enterprises, in the selection of technology route, the pioneer role of industry. 2006 successfully developed with independent intellectual property rights of the YC6L, such as the successful use of SCR system engine, in the domestic market to achieve mass. Currently has more than 4000 vehicles equipped with Yuchai engine vehicle service in Beijing green bus lines, every day to reduce 10 tons of nitrogen oxide emissions, in Shanghai, Hangzhou, Guangzhou and other cities also has greater ownership and to improve urban air quality has contributed to.

SCR Technology in order to provide the basis for in the country to promote, from the beginning of 2008, Yuchai and Guangdong Province Motor Transport Group cooperation to carry out the research of SCR Technology on the adaptability to China, and Guangdong province traffic office to support the project. This project lasted two years. In the two years of study, researchers in Guangdong automobile transportation group passenger branch company and Guangzhou and Guangdong No.2 company of 4 by SCR Technology Yuchai engine shipped for follow-up study. After 330000 km of operation, the researchers concluded that the "SCR system has no obvious deterioration", "the use of fuel sulfur content on the SCR is not a barrier to the formation of the". Responsible for the project of Yuchai company senior technical advisor to Chairman Li Qin thinks. Experimental results show that using Yuchai SCR technology, with strong durability, high reliability, superior performance, a wide range of characteristics, fully applicable to the long-distance bus and urban and rural public transportation such as buses.

A member of the expert group on the research results of recognition of yuchai. Use of Yuchai SCR system "under the condition of high sulfur diesel test, after running 33 million kilometers after treatment system is no obvious degradation phenomenon", also has "simple sources of raw materials, consumption is small, the cost is low, easy to operate" technical advantages, the acceptance report says. In addition, the OBD system (vehicle diagnostic system) of the nitrogen oxide sensor for more than 100000 kilometers of durability assessment, the application is good". The experts agreed on the subject through acceptance.

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