| 摘要 |
The turbomachine has an annular diffuser arranged at an exit of a centrifugal compressor. The diffuser has a downstream annular flange (26) with an L shaped section, which delimits an annular cavity ventilated by deducting the air at the exit, with a radial downstream surface (70) of an impeller (36). A square, rectangular or triangle shaped annular deflector (80) is mounted in the cavity and extends between the surface and the flange to oppose to increase the hot air along the surface, to accelerate the deducted air at the exit and to drive the hot air deducted towards the downstream. |
