Vladimir Mikhailov, an engineer from Kostroma, has developed an architecture for a combined power unit that radically simplifies the design of hybrid internal combustion engines. The invention solves the problem of classic supercharging systems – the reduction of the engine's mechanical efficiency due to parasitic loads on the compressor drive.
The developer managed to create a closed, self-sustaining gas exchange circuit by combining the piston group and the supercharging system into a single thermodynamic cycle.
Mikhailov's scheme is based on synchronizing two different cycles on a single crankshaft and camshaft.
Now, the compressor unit continuously accumulates air and supplies it under pressure to the cylinders of the four-stroke ICE through the intake manifold. Exhaust gases from the ICE are not simply released into the atmosphere but are directed to the turbocharger's turbine.
The turbocharger, spun by exhaust gases, further compresses the air at the inlet to the two-stroke compressor. Thanks to this scheme, pumping losses at the intake are minimized.
Mikhailov managed to find a solution for ICEs with multi-stage supercharging, which typically require complex differential gears, separate shafts, and electronic compressor disengagement clutches.