Designer Alexey Agashkov from Lyubertsy has developed a design for a rotary-vane internal combustion engine. The detonation wave is intended to directly create the rotor's torque.
Unlike conventional piston internal combustion engines, the proposed scheme does not use a mechanical compression stroke. Fuel is supplied to a small enclosed volume, where it rapidly transitions into a gaseous state, after which detonation is initiated. In this process, the peak pressure of the wave can exceed boost pressure by 15–20 times.
The key element of the design is the rotor blades. Their concave shape, along with the profiled sections of the stator, is intended to focus the shock wave on the working surface and convert its impulse into rotation.
After detonation, the gases enter a secondary chamber and are expelled through Laval nozzles. The author has provided for reflecting cavities on the stator: these are intended to return part of the supersonic jet's impulse to the rotor.
The design also provides for two operating modes. In the normal variant, two working strokes per revolution are declared, and in "super-afterburner" mode, up to four detonations per revolution. Various types of fuel are proposed for operation, including propane, methane, hydrogen, gasoline, and kerosene.