Here is a very small fracture mechnicas Circular vane engine .
all ready underdevelopment for the US Militray , 6inc by 6 inch by 6 inch 24 detonations per revelotion
- 6 inches dia.
- 6 inches long
- 42 hp at 7000 rpm
- 40lbs.
- Tested at NAVAIR PSEF Oct. 2003
- Cylindrical rotor with integrated drive shaft
- Axial vanes move sinusoidally
- Cams on each end of the rotor guide the axial vanes
- Major moving parts: rotor and 12 axial vanes
- Symmetric design forms 24 combustion chambers
DESIGN
- More powerful and fuel efficient than current reciprocating engines, yet less expensive to maintain.
SIMPLICITY
- Only 2 moving parts, the vanes and the rotor – no pistons, valves, etc. – reducing assembly and maintenance costs.
POWER
- Provides up to 24 power strokes per revolution. The stroke length of a reciprocating engine is approximately 3.5″, and one power stroke is generated for every two revolutions. The RadMax™ Engine has a stroke length of approximately 14″, and its unique design provides 12 power strokes per revolution.
- Calculated at 30% volume efficiency, compared to Wankel engine’s 10% volume efficiency, compared to piston engine 7-8% volume efficiency.
COMPACT
- Fully scalable, the 42 hp diesel engine version is only 6″ in diameter by 6″ long.
MULTI-FUELED
- Ethanol, Natural Gas, Propane, Diesel and even Hydrogen Fuels including mixtures.
NOISE REDUCTION
- High firing frequency resulting from 24 combustions per revolution virtually eliminates exhaust and intake noise.
would you like more info about this ? do you want me to do more search about it ??
Email me if so . i dont like this engine also.
i dont like vanes.
Search words
Complete torque – full torque – continues torque – torque engine. Toroidal engine – Toroidal motor.
Piston less Engine – Piston less Motor – Cam less Engine – Cam less Motor -


