本文提出了涡轮增压器的引流设想及基本原理,进行了改型设计及台架实验,获得了引流涡轮增压器压气机及涡轮的实验结果。经过与常规涡轮增压器特性的比较和引流涡轮增压发动机的性能预测,可以认为:引流方案是改善发动机低速扭矩特性,减少发动机黑烟排放和降低油耗的一个有效措施。 In this paper, the hypothesis and basic principle of turbocharger drainage are put forward. The modified design and bench experiment are carried out, and the experimental results of the turbocharger compressor and turbine are obtained. After comparing with the performance of conventional turbocharger and predicting the performance of the turbocharged engine, it can be concluded that the drainage scheme is an effective measure to improve the torque characteristics of the engine at low speed, reduce the emission of black smoke and reduce the fuel consumption.