Variable cycle propulsion device employing exhaust bypass...

B - Operations – Transporting – 64 – D

Patent

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Details

B64D 27/10 (2006.01) B64D 33/02 (2006.01) B64D 33/04 (2006.01) F02K 3/02 (2006.01) F02K 3/075 (2006.01) F02K 3/12 (2006.01)

Patent

CA 2389525

Variable cycle propulsion device for supersonic aircraft comprising at least one propulsion unit (1) having means for producing exhaust gases and a gas ejection nozzle for generating thrust for supersonic flight speeds, and at least one auxiliary propulsion assembly (14) distinct and dissociated from the propulsion unit, with no gas generator and capable of generating thrust for takeoff, landing and subsonic flight speeds. The device also comprises mobile means for diverting the flow of gases between a position in which they divert at least a portion of the exhaust gases produced by the propulsion unit towards the propulsion assembly so that the latter will generate thrust for the takeoff, landing and subsonic cruise flight, and a position in which the gases produced by the propulsion unit (1) are channelled only to the nozzle of the latter for supersonic cruise flight.

Dispositif de propulsion à cycle variable pour avion supersonique comprenant au moins un propulseur (1) comportant des moyens pour produire des gaz d'échappement et une tuyère d'éjection de gaz pour générer une poussée pour les vitesses de vol supersonique, et au moins un ensemble propulsif auxiliaire (14) distinct et dissocié du propulseur, dépourvu de générateur de gaz et capable de générer une poussée pour le décollage, l'atterrissage et les vitesses de vol subsonique. Le dispositif comporte en outre des moyens de dérivation de flux gazeux mobiles entre une position dans laquelle ils dérivent au moins une partie des gaz d'échappement produits par le propulseur vers l'ensemble propulsif afin que celui-ci génère une poussée pour le décollage, l'atterrissage et le vol en croisière subsonique, et une position dans laquelle les gaz produits par le propulseur (1) sont uniquement dirigés vers la tuyère de celui-ci pour le vol en croisière supersonique.

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