MISTRAL's two-rotor engine block
Two or three-rotor engine block
Turbine like
The engine is built of three major mechanical sections :
- Propeller-Speed Reduction Unit (PSRU)
- Rear-plate and accessory casing of the supporting external systems
- Short-block (two or three rotors)
The sheer simplicity of the rotary engine block leads to its high reliability, longevity and low maintenance and overhaul costs. There are no valves, no pistons, no connecting rods, no camshaft…
The crankshaft is replaced by a much more simple and robust eccentric shaft, and the same power as some six-cylinder piston engines can be produced by a two-rotor engine. This design has proven itself over many years of reliable service in automobile applications. In car racing, rotary engines are renown for their dependability and piston engines are no match for them in endurance.
Contrary to reciprocating engines in which pistons brutally reverse direction thousands of times per minute, rotors only … rotate, with a slight eccentric movement. This results in incomparably smooth, vibration-free engine operations and great durability… turbine-like!
