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A pneumatic motor (air motor), or compressed-air engine, is a type of motor which does mechanical work by expanding compressed air. Pneumatic motors generally convert the compressed-air energy to mechanical work through either linear or rotary motion.
The Di Pietro Motor, developed by the Australian company EngineAir, is a positive displacement pneumatic rotary engine powered by compressed air. Per unit of power, it is smaller than any internal combustion engine although the size may differ between models. The CA-patent for this engine was published in 2001. [3]
Dipietro eccentric shaft, rotary vane air engine. There have been several dubious claims with undisclosed information. However, the "Di Pietro" engine has been partially tested with CAD and finite element analysis program and published in scientific papers by Jarosław Zwierzchowski from Lodz University of Technology in 2017, [4] which is an eccentric shaft vane motor that uses low air pressure.
These compressors are common in industrial applications and replace more traditional piston compressors where larger volumes of compressed gas are needed, e.g. for large refrigeration cycles such as chillers, or for compressed air systems to operate air-driven tools such as jackhammers and impact wrenches. For smaller rotor sizes the inherent ...
Another motorcycle with a rotary engine was Charles Redrup's 1912 Redrup Radial, which was a three-cylinder 303 cc rotary engine fitted to a number of motorcycles by Redrup. In 1904 the Barry engine , also designed by Redrup, was built in Wales: a rotating 2-cylinder boxer engine weighing 6.5 kg [ 3 ] was mounted inside a motorcycle frame.
In the third-generation GT/GMT-305, the air intake is arranged axially with the turboshafts, which share a common horizontal axis.The single-stage rotary compressor draws air at atmospheric conditions through the intake and expels compressed air out radially into the side compartments, where the rotating drum-shaped regenerators preheat the compressed air using heat extracted from the exhaust ...
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The Microelectromechanical systems (MEMS) Rotary Engine Lab at the University of California, Berkeley, formerly researched developing rotary engines down to 1 mm in diameter, with displacements less than 0.1 cc. Materials include silicon, and motive power includes compressed air.