Turbojet engine with attenuated jet noise

Details Turbojet engine with attenuated jet noise Turbojet engine with attenuated jet noise

F - Mech Eng,Light,Heat,Weapons

02

K

F02K 1/34 (2006.01) F02K 1/38 (2006.01)

Patent

CA 2625068

According to the invention, a plurality of hatches (21) are provided in the rear part (15R) of the engine cowl (15), said hatches being distributed on the periphery of said rear part (15R) and being opened only when the turbojet engine power corresponds to a high power greater than the cruising power. In open position, the hatches (21) draw, on the hot flow, individual hot air jets (9d) passing through the intermediate chamber (16) before ejecting same through communication means (18) distributed about the longitudinal axis (L-L).

Selon l'invention, on prévoit une pluralité de trappes (21) dans la partie arrière (15R) du capot de moteur (15), lesdites trappes étant réparties à la périphérie de ladite partie arrière (15R) et n'étant ouvertes que lorsque le régime du turbomoteur correspond à un régime élevé supérieur au régime de croisière. En position ouverte, les trappes (21) prélèvent, sur le flux chaud (9), des jets d'air chaud individuels (9d) passant dans la chambre intermédiaire (16) avant de sortir celle-ci à travers des moyens de communication (18) répartis autour de l'axe longitudinal (L-L).

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