Viktor Bakhirev, an engineer from Nalchik, has developed an unusual power unit that combines elements of a gas turbine engine and the operating principles of piston engines. The designer proposes abandoning the classic continuous combustion scheme and using a more complex cycle with multiple pressure increases in the combustion chambers.
The main feature of the design is three combustion chambers, arranged circumferentially at 120-degree angles to each other. Inside them are special spiral elements that increase the path of the air-fuel mixture and improve the combustion process.
Another feature of the project is the use of two independent injectors. According to the patent description, the engine can operate in various modes, allowing for changes in the ratio between thrust and fuel efficiency.
Bakhirev claims that additional pressure increase is achieved by several processes: compressor operation, transfer of combustion products between chambers, and sequential ignition of new fuel portions.
The patent also mentions the possibility of reducing the mass of the power unit, increasing the payload of the aircraft, and improving fuel efficiency.