The Rotary Air Engine (Di Pietro motor)

The Di Pietro motor concept is based on a rotary piston. Different from existing rotary engines, the Di Pietro motor uses a simple cylindrical...

Engineair's Ultra-Efficient Compressed Air Motor

Elegant minimalist design eliminates most of the working parts traditionally associated with internal combustion engine; offers nearly 100% energy efficiency for a variety of...

Air Powered Motors: Small as Watermelons, More Efficient than Diesel

If you watch The Green Optimistic you already know that we covered air cars in previous posts, both MDI CAT's and the Angelo DiPietro air motor. The first time we wrote about these inventions was about 6 months ago. Now, MDI and Angelo DiPietro have contracts all over the world with auto makers to sell them the compressed air technology so automakers do what they do best: cars.

The Tesla Turbine

Nikola Tesla created an engine design nearly 100 years ago that is as much as three or four times more efficient than the combustion...

First Ever Liquid Air Zero-Emission Engine to Get Tested in UK

It is more than a year ago since we first introduced the concept of liquid nitrogen to be used in a motor, however there...

DIY Tesla Turbine From a Hard Disk

Disks At first I tried using CDs because of their large surface areas, but they didn't hold up too well under the milling machine. I...