RADIAL BLADE DIFFUSER OF CENTRIFUGAL COMPRESSOR Russian patent published in 2017 - IPC F04D29/44 

FIELD: machine engineering.

SUBSTANCE: changing the configuration of the front wall of the radial diffuser provides redistribution of working medium expansion along the length of the blade diffuser, so that expansion at the inlet and outlet sections decreases, and the main expansion performs process on the middle section of the diffuser channel. In the result, the losses of total pressure and efficiency are reduced by 1-2% which is especially important for small-sized auxiliary gas turbine engines with low efficiency of turbo-compressor elements.

EFFECT: reduced total pressure losses, increased stable operation range of the centrifugal compressor, increased efficiency of the diffuser by changing the configuration of one of its side walls.

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