WD615系列柴油机是奥地利斯太尔戴姆勒·普赫公司91系列载重汽车的配套动力．我国在“七五”期间重点引进该系列载重汽车制造项目时引进了作为整车技术一部分的高速发动机制造技术．经十多年的引进研制，已使该引进产品发展成不仅能为重型汽车配套动力，也能满足相应功率范围的 WD615 series diesel engine is Austrian Steyr Daimler Pu’er company 91 series truck supporting power. In the period of the “Seventh Five-Year Plan”, China introduced the manufacturing technology of high-speed engine as a part of vehicle technology during the introduction of this series of heavy truck manufacturing projects. After more than 10 years of research and development, the imported products have been developed into a vehicle that can not only support heavy vehicles, but also meet the corresponding power range