AIR-JET DETONATION ENGINE ON SOLID FUEL AND METHOD OF ITS OPERATION Russian patent published in 2019 - IPC F02K7/10 

FIELD: aviation.

SUBSTANCE: invention relates to power plants of aircraft for various purposes operating on solid fuel (for example, synthetic polymer). Method of detonation combustion of pyrolysis gases in combustion chamber of air-jet engine, at that jet reactor throttling involves blowdown of pyrolyser reactor with granulated solid fuel by high-temperature or low-temperature gases from gas generator. Combustion of pyrolysis gases mixture with air in combustion chamber takes place in detonation wave, providing heat flow to pyrolysis reactor from combustion chamber, sufficient to achieve required rate of pyrolysis gases formation in this or that operating mode, and sufficient for reliable cooling of combustion chamber design elements due to endothermic pyrolysis of granular solid fuel. Method is realized in a device in which the pyrolyser reactor is separated from the annular combustion chamber by a wall made from a material with high heat conductivity. Inside the pyrolysis reactor there is a heat exchange frame made of material with high heat conductivity and in thermal contact with the wall separating the pyrolysis reactor from the annular combustion chamber. Granulated solid fuel in pyrolyser reactor is in thermal contact both with wall separating reactor-pyrolyser from annular combustion chamber, and with elements of heat exchange frame.

EFFECT: invention enables to obtain pyrolysis products with phase and chemical composition required for self-sustained detonation combustion and reliable cooling of combustion chamber design elements.

3 cl, 1 dwg