Snecma Moteurs

Xavier Jean-Michel Andr&eacute; Guyonnet

Gilles Alain Charier

Gilles Louis Rollin

G&eacute;rard Ernest Andr&eacute; Jourdain

Michel David Ah-fa

An integrated exhaust nozzle and thrust reverser for a turbojet engine is provided. The exhaust nozzle comprises an exhaust duct situated within a fairing (,), a set of hot flaps (,) at a downstream end of the duct, a set of cold flaps (,) at a downsteam end of the fairing (,), and a thrust reverser (,). The thrust reverser comprises two eyelids (,) which are movable between a thrust reversal position wherein they project into the duct and a forward-thrust position. In a takeoff mode, the eyelids (,) are moved away from each other by one or more actuators (,) acting on arms (,) pivotably connected to the eyelids (,). Movement of the eyelids (,) from the reverse-thrust position to the forward-thrust position, or vice-versa, is implemented by control actuators (,).

Turbojet engine thrust reverser and exhaust nozzle

An exhaust assembly for a jet powerplant of a supersonic airplane comprising a rear structure fitted with a thrust reverser. The rear structure includes a primary multi-flap nozzle of variable cross-section situated downstream of a primary duct, a secondary multi-flap nozzle of variable cross-section situated downstream of a secondary duct enclosing the primary duct and a fairing enclosing the secondary duct and fitted with a throat downstream of an exhaust orifice of the secondary nozzle, the throat being followed by a diverging portion. The thrust reverser comprises two eyelids affixed in a pivotable manner to the fairing, one on each side to of an axial plane of symmetry. The eyelids are movable between an active, thrust-reversal position wherein the eyelids project transversely into a gas jet downstream of the fairing to deflect the gas jet in a forward direction for thrust-reversal and an inactive, forward-thrust position wherein the eyelids are situated in an extension of the fairing. The two eyelids are each mounted on the fairing by two lateral linkrods which are freely pivotable relative to the fairing about a transverse axis in the vicinity of the axial plane of symmetry. The eyelids furthermore are retained on the fairing by two outer actuators and by two inner actuators. Only the latter will be driven in the forward-thrust mode. The external linear actuators are driven when passing into the thrust-reversal mode.

Growing community of inventors

Fontainebleau, France

Xavier Jean-Michel André Guyonnet

Growing community of inventors

Fontainebleau, France

Xavier Jean-Michel Andr&eacute; Guyonnet

Xavier Jean-Michel André Guyonnet