Albert Bituev, an engineer from Novosibirsk, has developed a new triple-circuit turbofan engine design. The power unit will be able to change the configuration of flows depending on the specific flight mode – from economical cruising to increased thrust.
The key feature of the design is a single fan with the ability to connect a third circuit only during cruise flight. This reduces energy losses compared to classic two-stage systems.
The engine includes high and low-pressure compressors, main and auxiliary combustion chambers, and a separate turbofan module with independent RPM control.
Also, the architecture of the power plant differs from GE XA100 solutions and classic turbofans by the absence of continuous rotation of the third circuit, reducing mechanical losses in non-operating modes.
According to Bituev's calculations, the scheme allows for an increase in fuel efficiency by 20–25%, an increase in thrust by 10–15%, and a reduction in noise due to the distribution of flow among three channels.
The maximum operating modes are estimated at speeds over Mach 3 (approximately 3400 km/h) with the possibility of adaptation for prospective hypersonic platforms.
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