Reverse-flow type pulse detonation combustor
A technology of pulse detonation and combustion chamber, which is applied in the direction of combustion chamber, continuous combustion chamber, combustion method, etc., can solve the problems of the length of the whole engine, the increase of the axial distance between the turbine and the compressor, etc., and achieve shortening of the axial distance, The effect of improving work stability and prolonging the use time
Active Publication Date: 2016-09-28
NORTHWESTERN POLYTECHNICAL UNIV
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The invention provides a reverse-flow type pulse detonation combustor. The reverse-flow type pulse detonation combustor comprises a diffusion case, an outer combustor case, an inner combustor case, a combustor head case, a vortex guide unit, an oil nozzle, an electric spark, a fuel gas shaping chamber, a J-type reverse-flow detonation tube and a Shchelkin threaded strengthening device. An axial main air intake hole and a radial auxiliary air intake hole are formed in the air intake mixing section of the head portion of the J-type reverse-flow detonation tube, and the air intake mixing section is connected with the outer combustor case through an ignition base. The bent air exhaust section on the tail of the J-type reverse-flow detonation tube is fixed in a mounting hole in the inner combustor case and connected with the fuel gas shaping chamber. The vortex guide unit is installed behind the fuel gas shaping chamber. The axial distance of the detonation combustor can be decreased through the bent air exhaust section, the influence of detonation feedback is reduced through the volume between an inner sleeve and an outer sleeve of the combustor, air is preheated through the bent exhaust section so that combustible materials are mixed more sufficiently, and detonation combustion is made to be organized more easily.
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