近年来,以可转导叶为手段的变几何燃气轮机获得了广泛的应用。实践证明,它可以有效地提高发动机的性能:降低部份工况下的油耗,改善启动特性和加速性能。在某些情况下,也可用来作为倒车机构、剎车或是超速的保安装置。有重要意义的是,在调试过程中,它可以有效地用来调节流量以及实现级间的负荷重新分配。但是,与此同时将使机组,特别是燃油调节系统复杂化和制造成本增加。此 In recent years, the variable geometry gas turbine with a switchable leaf as a means has gained a wide range of applications. Practice has proved that it can effectively improve the performance of the engine: reduce fuel consumption in some conditions, improve startup characteristics and acceleration performance. In some cases it can also be used as a reversing mechanism, brake or speeding safety device. It is significant that during commissioning it can be used effectively to regulate traffic and to achieve interstage load redistribution. At the same time, however, it will complicate the crew, especially the fuel conditioning system, and increase manufacturing costs. this