Patent ID: 9151244
Filing Date: 2015-10-06
Classification: B64D,F02K,F04B

Abstract:
1. An aircraft jet engine, comprising: a nozzle including a nozzle outlet to eject a gas stream; at least one duct with a downstream end which opens downstream at the nozzle outlet so as to eject at least one fluid jet to interact with the ejected gas stream; and at least one pulsation means for ejecting a respective fluid jet from said at least one fluid jet at the nozzle outlet, the at least one pulsation means including two cowls which face each other along a first axis, the two cowls connected together defining at least part of a recess, the recess divided into several chambers by at least two deformable membranes, and the at least one pulsation means includes a fluid inlet and a fluid outlet on a second axis that is perpendicular to the first axis, the fluid outlet connected to an upstream end of the at least one duct, wherein a speed of the respective fluid jet is modulated by varying a volume of at least one of said several chambers.