Aircraft jet engine provided with a device for reducing...

F - Mech Eng,Light,Heat,Weapons – 02 – K

Patent

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F02K 1/34 (2006.01)

Patent

CA 2572698

The invention relates to an aircraft jet engine comprising at least one nozzle (1) for ejecting a propulsion jet or several confluent propulsion jets provided with an output crown (2) which comprises means for perturbing said propulsion jet(s) consisting of at least one pair (3 to 10) of conduits (3a, 3b, ..., 10a, 10b) through which air jets are exhausted, wherein said conduits (3a, 3b, ..., 10a, 10b) are open at the exit of the nozzle (1) and the conduits (3a, 3b, ..., 10a, 10b) of each pair (3 to 10) are mounted in such a way that they are convergent with respect to each other at an angle ranging from 40 to 70 degrees for generating, at the exit, the interaction triangle of the air jets penetrating into the propulsion jet at a given incidence.

La présente invention se rapporte à un réacteur d'avion comprenant au moins une tuyère (1) éjectant un jet propulsif ou plusieurs jets propulsifs confluents, ladite tuyère (1) présentant une couronne de sortie (2), caractérisée en ce que ladite couronne de sortie (2) comporte des moyens de perturbation dudit ou desdits jets propulsifs constitués au moins d'une paire (3 à 10) de conduits (3a, 3b, ..., 10a, 10b) par lesquels sont éjectés des jets d'air, lesdits conduits (3a, 3b, ..., 10a, 10b) débouchant en sortie desdites tuyères (1), et en ce que les conduits (3a, 3b, ..., 10a, 10b) de chaque paire (3 à 10) sont disposés convergents l'un par rapport à l'autre selon un angle de 40 à 70 degrés pour générer en sortie un triangle d'interaction des jets d'air pénétrant dans le jet propulsif avec une incidence donnée.

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