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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. Linear motion can come from either a diaphragm or piston actuator, while rotary motion is ...
The tanks must be designed to safety standards appropriate for a pressure vessel, such as ISO 11439. [6]The pressure vessels or air storage tanks that can be used in compressed-air vehicles can be made for low pressure (9 atm (130 psi)) or high (more than 240 atm (3,500 psi)), and can be made of composite materials like thermoplastic and fiber-reinforced thermoplastics, [7] [8] that means that ...
Shaft – The shaft connects the turbine to the compressor, and runs most of the length of the engine. There may be as many as three concentric shafts, rotating at independent speeds, with as many sets of turbines and compressors. Cooling air for the turbines may flow through the shaft from the compressor.
The air compressed by the compressor bypasses the combustor and turbine section of the engine, where it is mixed with the turbine exhaust. The turbine exhaust can be designed to be fuel-rich (i.e., the combustor does not burn all the fuel) which, when mixed with the compressed air, creates a hot fuel-air mixture which is ready to burn again.
The compressed air is channeled through the combustors, where it is mixed with fuel and burned, and the resulting combustion gases are expanded through first the gasifier turbine, which is on the same shaft and is used to drive the rotary compressor, then through the power turbine, which is on the output shaft. [1]: 43–44
Eolo is the first compressed air-powered car. It was invented by Guy Nègre. Motor Development International (MDI) licensed the patent. It was unveiled during the 2001 Bologna Motor Show car and bike fair. An attempt to put it into production failed in 2003. The engine was sold as a power generator with zero emissions.
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Cutaway view of an air-start motor of a General Electric J79 turbojet. With air-start systems, gas turbine engine compressor spools are rotated by the action of a large volume of compressed air acting directly on the compressor blades or driving the engine through a small, geared turbine motor. These motors can weigh up to 75% less than an ...