SOLID FUEL RAMJET ENGINE AND METHOD OF ITS FUNCTIONING Russian patent published in 2023 - IPC F02K7/10 F02K7/18 

FIELD: aviation industry.

SUBSTANCE: invention relates to the power plants of aircraft for various purposes, operating on solid hydrocarbon fuels, preferably fusible, not containing an oxidizer. A method for organizing detonation or deflagration combustion in a solid fuel ramjet engine, including the incoming air flow into the air intake, its deceleration in the air intake, gasification of the solid fuel charge to produce combustible gas, its supply to the afterburner and mixing with the incoming air flow into the afterburner chamber through the air intake, followed by the combustion of the formed combustible mixture in the detonation wave and the outflow of combustion products from the afterburner chamber through the exhaust nozzle into the atmosphere in the form of a jet stream that creates jet thrust, in which the oncoming air flow is divided into two flows: one enters through the main the air intake into the afterburning chamber, and the other one enters the gas generator through the gas generator air intake and thermally interacts with the solid fuel charge to form a multi-phase mixture, and the formed multi-phase mixture is ignited, which leads to the combustion of the solid fuel charge, and the resulting flow of high-temperature products, thermally interacting with charge of solid fuel, gasifies it, and from the resulting flow of a multi-phase mixture of combustion products and gasification products, solid particles and drops of solid fuel melt are separated, and the combustible gas flow is sent to the afterburner, where it mixes with the air flow that has entered through the main air intake, and combustion in a continuous or longitudinally pulsating detonation wave, or in a stationary deflagration mode takes place. A device is considered, including an air intake, an afterburner, a gas generator with solid fuel and an exhaust nozzle, in which two flow paths are provided: external and internal, the external flow path being formed by the main air intake, the afterburner and the exhaust nozzle, and the internal flow path being formed by the gas generator air intake, a gas generator with a charge of solid fuel, a trap for solid particles and drops of solid fuel melt and a guide channel connected to the afterburner through a belt of holes for supplying combustible gas.

EFFECT: invention provides detonation or deflagration combustion in a solid fuel ramjet engine.

9 cl, 2 dwg