FIELD: power mechanical engineering. SUBSTANCE: diffuser has diverging fairing 2, which has rounded top 3 and is positioned coaxially to housing 1, and curved concave outlet part 3, which abuts upon the housing walls. The curved part of fairing 2 is perforated. The output cross-section of diffuser ring passage 6 defined between housing 1 and fairing 2 is no more than the inlet cross-section of the wide-angle diffuser. EFFECT: improved design. 3 dwg
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