SUPERSONIC STRAIGHT-FLOW AIR-JET ENGINE (VERSIONS) Russian patent published in 2019 - IPC F02K7/10 

FIELD: machine building.

SUBSTANCE: supersonic straight-flow air-jet engine is made in the form of a body equipped with a device for attachment to an aircraft and comprising a flow path, comprising an air intake device with a multi-point airflow braking surface and a neck with the smallest flow section, combustion chamber and jet nozzle, as well as fuel supply system to combustion chamber. Grid of holes is made on the surface of the air intake device braking in front of its neck. Housing is equipped with air duct communicating grid of holes with reduced pressure area of air flow and its overlapping device. In the flow path wall at the inlet to the combustion chamber there is a hole. Communication of the air duct with the low-pressure zone of the air flow is made through this opening and the cavities of the combustion chamber and the jet nozzle. Air duct of the communication channel shutoff device is made in the form of a spring-loaded check valve.

EFFECT: invention is aimed at simplifying the design of the communication channel shutdown device for air removal from the air intake device and excluding additional heating of the aircraft side wall in its supersonic straight-flow air-jet engine.

2 cl, 3 dwg