FIELD: engines and pumps.
SUBSTANCE: invention relates to axial-flow fans of bypass fanjets. Proposed fan comprises gas generator with reducer and fan impeller. Said impeller comprises vanes fitted in barrel with their outer end edge tapered surfaces. Said tapered surfaces feature smaller base with diameter equal to that of vane end surface front edge. Diameter of vane end surface rear edge exceeds that of end surface front edge to make cone larger surface. Cone features height equal to vane end axial width.
EFFECT: higher efficiency, pressure and thrust.
9 cl, 8 dwg
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