Test specimen has been designed and manufactured and a counter-rotatingturbine test rig has also been constructed.
设计制造出了试验件，建立了对转涡轮试验台。
2
The results show that , the ratio of the output power of vaneless counter-rotatingturbine can reduce 2.6% at the same turbine efficiency when the low pressure rotor curves positive.
The counter-rotatingturbine design has been successfully applied in E3 program by P&W Company. The design characteristics of the high-pressure turbine stage was analyzed and discussed in this paper.