초록 ▼

An annular ram burner has a movable wall adjacent the flameholder to provide a large variation in area change at the flameholder plane. The movable wall comprises a number of flaps mounted around the ram burner. While a ram burner is shown a fan duct burner can also be used. The flaps are attached t

An annular ram burner has a movable wall adjacent the flameholder to provide a large variation in area change at the flameholder plane. The movable wall comprises a number of flaps mounted around the ram burner. While a ram burner is shown a fan duct burner can also be used. The flaps are attached to an actuator mechanism through a linkage system which allows the wall to be moved rapidly and to be simply controlled by an engine control device, substantially in the same manner that the variable area exhaust nozzle is controlled. The flaps further are provided with a liner so that cooling air is directed therethrough to an annular liner around the combustion chamber.

대표청구항 ▼

An air breathing reaction propulsion engine, said engine having a combustion chamber with combustion occurring in said chamber at subsonic air velocities, fuel injection means for injecting fuel into said combustion chamber, flameholder means in said combustion chamber, a variable area exhaust nozzl

An air breathing reaction propulsion engine, said engine having a combustion chamber with combustion occurring in said chamber at subsonic air velocities, fuel injection means for injecting fuel into said combustion chamber, flameholder means in said combustion chamber, a variable area exhaust nozzle, a wall of said combustion chamber being movable to vary the effective flow area of the combustion chamber across the flameholder, a portion of said wall being located in radial alignment with said flameholder.