OPERATING METHOD OF STRAIGHT-FLOW AIR-JET ENGINE AND DEVICE FOR IMPLEMENTATION THEREOF Russian patent published in 2020 - IPC F02K7/06 F02K7/20 

FIELD: engine building.

SUBSTANCE: invention relates to operation of straight-flow air-jet engine based on continuous-detonation combustion chambers and device for its implementation. Two annular continuous-detonation combustion chambers are used, for which initial temperature of their walls and working temperature not exceeding critical temperature of destruction of walls of combustion chambers are set. Providing parallel operation of combustion chambers in periodic mode so that when current temperature of at least one of walls of combustion chamber reaches a value equal to value of specified operating temperature, fuel supply is stopped and air is passed through the combustion chamber for its cooling to the initial temperature. After that, fuel is supplied and detonation combustion is provided. In each operating period detonation combustion of one combustion chamber is performed during cooling of the other combustion chamber. Number of operation periods of both combustion chambers corresponds to fatigue strength of material of combustion chambers. Direct-flow air-jet engine includes two continuous-detonation combustion chambers concentrically arranged one into another with formation of annular cooling air cavity between them. Each combustion chamber includes fuel injector and detonation initiator equipped with valves, as well as temperature sensors. Engine is equipped with automatic control system including amplifying-converting device, at that sensitive elements of automatic control system are temperature sensors, and actuators - valves of fuel nozzles and initiators of detonation, and automatic control system is made so that to provide simultaneous periodic operation of combustion chambers.

EFFECT: inventions allow increasing engine thrust.

3 cl, 9 dwg