| 摘要 |
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.
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