METHOD OF DETONATION-DEFLAGRATION COMBUSTION AND DETONATION-DEFLAGRATION RAMJET ENGINE Russian patent published in 2015 - IPC F02K7/02 

FIELD: engines and pumps.

SUBSTANCE: claimed process consists in that supersonic approach airflow is braked in the air intake curvilinear chamber, in the area of speed formation lower that speed of detonation wave generated at combustion but lower than that of shock wave produced at detonation wave suppression. Fuel is continuously fed via fuel nozzles and mixed with air to create a continuous flow of combustible mix with zone of poor mixing in fuel nozzles area and zone of fine mixing located downstream of mix flow. Combustible well-mixed mix is ignited. Detonation wave developed thereat and moving against the flow is suppressed in said poor-mixing zone to produce shock wave and sources of deflagration combustion carried by the flow downstream. Well-mixed combustible mix is ignited by said sources of deflagration combustion to initiate a new detonation wave to propagate against the flow for changeover from detonation to deflagration combustion. This causes detonation-deflagration combustion with pulsation frequency defined by the speeds of detonation wave and supersonic flow.

EFFECT: simplified design, pulsations of detonation wave without application of mechanical or gas-dynamic valves at continuous fuel feed.

2 cl, 2 dwg