general posted by

Air power.

The Di Pietro Rotary Air Engine. Zero pollution, very low friction, 100% more efficient than competitors. Very nice, very nice indeed!

‘It has low number of moving parts
It is compact and light
It has virtually no friction
It has virtually no vibration
It uses its own momentum to its advantage
It cushions its own parts on a film of air
Only 1 PSI of pressure is needed to overcame the friction’

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