| 摘要 |
A system for cooling the impeller of a centrifugal compressor in a turbomachine, this compressor ( 10 ) supplying an annular diffuser ( 12 ) comprising an end-piece ( 26 ) that extends downstream and along the impeller of the compressor and that is covered on the upstream side by an annular metal sheet ( 90 ) that delimits, with the impeller of the compressor, a first annular passageway ( 39 ) to carry away the air taken from the outlet of the compressor and, with the end-piece of the diffuser, a second annular passageway ( 98 ) to carry away a portion of the air flow coming out of the diffuser. |
