对实壁/圆弧斜槽组合式处理机匣在跨声压气机实验台上进行了实验研究.不同于传统处理机匣,实验的组合式处理机匣能够在大幅度提高压气机失速裕度的同时,使得其绝热效率增加接近1%,该组合式处理机匣能够取得“扩稳增效”的主要原因是,提高了叶尖区域的流通能力,抑制了分离流动,减缓了旋转失速的发生;通过采用周向非均匀分布的组合形式,减少了处理槽内的流动损失,使得机匣处理的收益大于损失,提高了压气机效率. Experiments were carried out on a transonic compressor bench with a solid wall / arc chute combi-casing.Compared with the conventional casing, the experimental combined casing could greatly improve the compressor stall margin , The adiabatic efficiency of the combined process receiver is increased by nearly 1%. The main reason that the combined process receiver achieves “expansion and efficiency increase ” is that the flow capacity in the tip area is increased, the separation flow is restrained, and the rotation is slowed down Stall occurs; by using a combination of circumferentially non-uniform distribution, the flow loss in the treatment tank is reduced, the benefit of the casing treatment is greater than the loss, and the compressor efficiency is improved.