rotary Archives – The Green Optimistic green tech news, since 2008 Sat, 16 Feb 2013 11:49:39 +0000 en-US hourly 1 https://wordpress.org/?v=7.0 2667534 Air Powered Motoscooter https://www.greenoptimistic.com/air-powered-motoscooter-20080415/ https://www.greenoptimistic.com/air-powered-motoscooter-20080415/#comments Tue, 15 Apr 2008 07:45:56 +0000 https://www.greenoptimistic.com/?p=281 The TV presenter Jem Stansfield modified this small moped to function on compressed air stored in two high pressure carbon fiber tanks, like the ones that the firefighters use. The engine has been replaced by two rotary air engines. The two tanks can be fully charged in a matter of seconds from any air compressor. […]

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]]> https://www.greenoptimistic.com/air-powered-motoscooter-20080415/feed/ 10 248 The Rotary Air Engine (Di Pietro motor) https://www.greenoptimistic.com/the-rotary-air-engine-di-pietro-motor-20080130/ https://www.greenoptimistic.com/the-rotary-air-engine-di-pietro-motor-20080130/#comments Wed, 30 Jan 2008 08:57:22 +0000 https://www.greenoptimistic.com/index.php/2008/01/30/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 rotary piston (shaft driver) which rolls, without any friction, inside the cylindrical stator. The space between stator and rotor is divided in 6 expansion chambers by pivoting dividers. These dividers follow […]

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