Our Main Product: The Birotary Engine

The Birotary Engine – Key Technical Solution Advantages

  • Large cross-section area for intake and exhaust ports
  • High engine induction efficiency and compression ratio
  • Seal surface contact and absence of inertia forces applied on sealing
  • High RPM combined with high torque resulting in high specific output
  • Short stroke design results in acceptable average piston speed even in high RPM mode of operation
  • Design of sleeve valve train system used in birotary engine is simpler than traditionally used poppet valves in traditional internal combustion engines
  • Mutual counterbalancing of rotating parts resulting in favorable NVH parameters (Noise, Vibration, and Harshness)
  • Short axial dimension resulting in space for external devices (gearbox, electric motor, etc.)


Target Markets – User Benefits

Birotary Engine Type A3 has been developed for small sport airplanes (class LSA, S-LSA, ELSA, ULL, GA and Experimental) and for Unmanned Aerial Vehicles (UAV).

  • High specific power output, especially compare to engine displacement and size
  • Low weight
  • Compact engine size with small size dimensions and cylindrical shape
  • Minimum vibrations
  • Design allows to operate the engine in very high RPM mode
  • Simple maintenance, longer TBO periods, lower maintenance costs