A few days ago, Yuchai YCK08 China VI engine successfully completed 1,460 hours of emission durability test and emission certification in Tianjin (China) Automobile Technology and Research Center, becoming the first China VI heavy-duty diesel engine to complete all type inspection items, marking the successful completion of YCK08 emission announcement certification.

A year ago, YCK08 successfully passed the most stringent national China VIb certification, becoming the first heavy-duty diesel engine passing China VI verification and obtaining the qualification of environmental protection information publicity.  As required, the engine still needs to go through the emission durability test, which has to be completed within one year after the qualification of environmental protection information publicity is obtained.

As one item of the emission announcement certification type inspection, the main purpose of emission durability test is to determine the deterioration coefficient of the engine aftertreatment system through test verification, so as to ensure that the emission durability meets the requirements of China VI emission regulations. Therefore, Yuchai started the bench durability test in early June this year after a series of preparatory work including engine technical status issue, prototype production, engine performance emission confirmation, and emission test verification before the durability test.

(Zhao Lingmeng)