FIELD: engines and pumps.
SUBSTANCE: bypass turbojet engine comprises a fan wheel carrying blades and surrounded by an annular casing. Casing includes an air suction mechanism sucking air from an annular clearance formed between casing and radially outer ends of blades of fan wheel. Air suction mechanism includes an inlet including at least one inlet slot formed in an inside wall of casing and connected to a suction channel extending downstream. Inlet slot of suction mechanism is situated axially in register solely with upstream portions of chords of blades of fan wheel at their radially outer ends.
EFFECT: simplified design and reduced broadband noise.
8 cl, 3 dwg
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