The 18th National Invention Exhibition with the theme of "innovative development, upgrading capabilities, strengthening cooperation, and service economy" was held recently at the Kunming International Convention and Exhibition Center. More than 1,700 inventions were participated in the show throughout the country, and the “High-Power State III Diesel Engine R&D and Industrialization Project” selected and dispatched by Xichai won the Gold Award for its outstanding autonomy, technicality, and economy.

The large-power III diesel engines exhibited by Xichai have two types, L and N. The 6DL series covers 191 to 279kW, and the 6DN series covers 272 to 338kW. The Xichai High Power III diesel engine adopts the international advanced development process, independently completes the internal combustion purification system design without exhaust gas recirculation, and autonomously performs the function definition, overall design and performance matching of the common rail system. It has taken the lead in completing the performance development of the State III engine, pioneering the method and process of engine rig calibration, three-high (high-heat, high-cold and high-altitude) vehicle calibration, establishing a calibration database that suits China’s national conditions, and forming a complete electronic control system. The diesel engine development system established the EOL system with Xichai's characteristics and successfully realized the industrialization of the National III diesel engine.

The Xichai High Power III diesel engine has 10 domestic patents, which fills the blank of the domestic 4-valve electric control common rail country III diesel engine. The Xichai High Power III diesel engine is equipped with FAW Jiefang J5 and J6 “Aowei” heavy trucks, which is the core power of China’s heavy-duty diesel engine field and also the sharp weapon of FAW Jiefang Co., Ltd. to seize the heavy truck market. The Xichai High Power III diesel engine has also been widely used in bus and coaches in large and medium-sized cities such as Shenzhen, Shanghai, and Beijing. The series of diesel engines has gained the advantages of strong power, fuel economy, and reliable performance. The general acceptance of the vast number of users, the market prospect is very broad.



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