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A pulse detonation engine has an inner tubular housing rigidly and concentrically mounted within a cylindrical bore of an outer tubular housing. The inner housing has a plurality of inner housing ports, and the outer housing has a plurality of outer housing ports. A detonation chamber is formed in t

A pulse detonation engine has an inner tubular housing rigidly and concentrically mounted within a cylindrical bore of an outer tubular housing. The inner housing has a plurality of inner housing ports, and the outer housing has a plurality of outer housing ports. A detonation chamber is formed in the annulus between the inner housing and the outer housing. In one embodiment, an outer valve sleeve is rotatably mounted to the outer housing for selectively allowing air to enter the detonation chamber through the outer housing ports. A movable, inner protective sleeve is mounted to the inner housing for protecting a plurality of fuel injectors that supply liquid fuel to the detonation chamber through the inner housing ports. The air and liquid fuel mixture is detonated by several igniters located in the detonation chamber. In a second embodiment, an inner valve sleeve is rotatably mounted to the inner housing for selectively allowing air to enter the detonation chamber through the inner housing ports. A movable, outer protective sleeve is mounted to the outer housing for protecting a plurality of fuel injectors that supply liquid fuel to the detonation chamber through the outer housing ports. The air and liquid fuel mixture is detonated by several igniters located in the detonation chamber. The detonation for both embodiments creates a detonation wave that travels through an open downstream end of the detonation chamber, thereby creating thrust for the engine.

대표청구항 ▼

1. An aircraft having wings and a fuselage comprising:a pulse detonation engine mounted to the aircraft comprising: an outer tubular housing having a cylindrical bore and at least one outer housing port; an inner tubular housing having a cylindrical bore and at least one inner housing port; an outer

1. An aircraft having wings and a fuselage comprising:a pulse detonation engine mounted to the aircraft comprising: an outer tubular housing having a cylindrical bore and at least one outer housing port; an inner tubular housing having a cylindrical bore and at least one inner housing port; an outer sleeve movably carried by the outer tubular housing for movement relative to the outer tubular housing, the outer sleeve having at least one outer sleeve port, the outer sleeve port having an open position aligning with the outer housing port to open the outer housing port and a closed position blocking the outer housing port; an inner sleeve movably carried by the inner tubular housing for movement relative to the inner tubular housing, the inner sleeve having at least one inner sleeve port, the inner sleeve port having an open position aligning with the inner housing port to open the inner housing port and a closed position blocking the inner housing port; a fuel injection system for atomizing and injecting liquid fuel from a liquid fuel source to the pulse detonation engine, the fuel injection system having a fuel injector alternately located adjacent one of the outer tubular housing port and the inner tubular housing port and the other of the outer and inner tubular housing ports adapted to receive a gas containing oxygen; a detonation chamber located within an annulus formed between the outer tubular housing and the inner tubular housing, the detonation chamber receiving the atomized liquid fuel from the injector and a gas containing oxygen when the outer and inner housing ports are open, the liquid fuel and gas creating a fuel mixture; and an igniter mounted to the detonation chamber for detonating the fuel mixture to create a detonation wave while the outer and inner housing ports are closed.