Turbine shell with waste gas self-circulation cooling structure

A turbine shell with a waste gas self-circulation cooling structure relates to the technical field of superchargers and comprises a turbine shell, an air outlet of the turbine shell is connected with a flow guide shell communicated with the air outlet, a cooling cavity is formed in the shell wall of the turbine shell around an inner hole, and an air circulation pipe set is arranged between the cooling cavity and an inner cavity of the flow guide shell. The turbine shell cooling structure solves the problems that in the prior art, a turbine shell cooling structure is complex, the surface temperature of a turbine shell cannot be effectively reduced, and the cooling effect is common. 一种带有废气自循环冷却结构的涡轮壳，涉及增压器技术领域，包括涡轮壳，涡轮壳的出气口连接有相连通的导流壳，涡轮壳的壳壁上围绕内孔开设有冷却腔，冷却腔与导流壳的内腔之间设有空气循环管组。本实用新型解决了传统技术中的涡轮壳冷却结构复杂，无法实现对涡轮壳的表面温度进行有效降低，降温效果一般的问题。