FIELD: engines and pumps.
SUBSTANCE: device for protection of turbojet engine against foreign objects ingress comprises protective wire-like elements installed in air intake body with the help of annular frame tightly inserted in it with displacement relative to each other in axial direction. Frame with protective elements represent together, accordingly, base of brush and elastic bristle fixe on it in cantilever manner and oriented radially inside. Protective elements /bristle/ are made of soft magnetic rubber based on natural rubber resin SKI-3 as polymer base and ferrite powder F1 as magnetic filler. In central part of body along its longitudinal axis, cylindrical coil is installed with core of aerodynamic shape, connected to generator of constant and sinusoidal electric signals with controlled amplitude and frequency.
EFFECT: invention is aimed at reduction of disturbing effects at flow in idle modes with preservation of turbojet engine protection efficiency.
2 dwg
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