edited 17 May 2014
there is an investigation paper done by NASA on this engine, I will try to locate it and post it here.
there is also a forum discussion this engine, there are real life calculations on it performance.
for here he is an old news piece about it.
Here is a very small fracture mechanics Circular vane engine .
all ready underdevelopment for the US military , 6 inch by 6 inch by 6 inch 24 detonations per revolution
- 6 inches dia.
- 6 inches long
- 42 hp at 7000 rpm
- Tested at NAVAIR PSEF Oct. 2003
- Cylindrical rotor with integrated drive shaft
- Axial vanes move sinusoidal
- 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
- More powerful and fuel-efficient than current reciprocating engines, yet less expensive to maintain.
- Only 2 moving parts, the vanes and the rotor – no pistons, valves, etc. – reducing assembly and maintenance costs.
- 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.
- Fully scale-able, the 42 hp diesel engine version is only 6″ in diameter by 6″ long.
- Ethanol, Natural Gas, Propane, Diesel and even Hydrogen Fuels including mixtures.
- High firing frequency resulting from 24 combustion per revolution virtually eliminates exhaust and intake noise.
here is the company’s website
Complete torque – full torque – continues torque – torque engine. Toroidal engine – Toroidal motor.
Piston less Engine – Piston less Motor – Cam less Engine – Cam less Motor –