由于当代新的歼击机发展的需要 ,推重比 10以上的涡扇发动机的研制势在必行 ,而对于涡轮部件 ,采用超跨声、大负荷、低稠度、无导叶、大转折角的对转涡轮方案是一个重大的技术措施。它将大幅度减轻发动机重量 ,提高推重比。分析了对转涡轮的优点 ,引出涡轮气动设计、计算方面的新问题和新概念。设计制造出了试验件 ,建立了对转涡轮试验台。 Due to the demand of the development of new fighter aircraft in the contemporary era, the development of turbofan engines with a thrust-weight ratio of 10 or more is imperative. For the turbine components, trans-transonic, heavy-duty, low-consistency, Turbine program is a major technical measure. It will greatly reduce engine weight, improve thrust-weight ratio. The advantages of turbomachinery are analyzed, and the new problems and new concepts of turbomachine design and calculation are introduced. Design and manufacture of test pieces, the establishment of a counter-rotating turbine test bed.