Shunting ring, inner and outer culvert stator integrated structure and aero-engine

The shunting ring comprises an upper molded surface and a lower molded surface, the upper molded surface and the lower molded surface are respectively connected with a stator blade, the shunting ring further comprises a plurality of guide extension structures, and the guide extension structures are arranged in areas, connected with the stator blades, on the upper molded surface and/or the lower molded surface so as to guide air flow to flow orderly. The shunting ring can realize a better shunting ring front end local flow field, and improves the inlet flow field quality of inner and outer culvert stator blades. The invention further provides an inner and outer culvert stator integrated structure and an aero-engine. 提供一种分流环，包括上型面和下型面，上型面和下型面分别连接有静子叶片，该分流环还包括多个引导延伸结构，设置在上型面和/或下型面上与静子叶片相连接的区域，以引导气流有序流动。上述分流环能够实现更好的分流环前端局部流场，提高内外涵静子叶片进口流场品质。还提供一种内外涵静子一体化结构及航空发动机。