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2. Airbreathing jet engine - Wikipedia

   en.wikipedia.org/wiki/Airbreathing_jet_engine

   Compressor or Fan – The compressor is made up of stages. Each stage consists of rotating blades and stationary stators or vanes. As the air moves through the compressor, its pressure and temperature increase. The power to drive the compressor comes from the turbine (see below), as shaft torque and speed.

3. Rotary-screw compressor - Wikipedia

   en.wikipedia.org/wiki/Rotary-screw_compressor

   Principal view of the pumping action of a twin-screw pump with a six-lobe female screw and a five-lobe male screw. A compressor (as opposed to a pump) would be shaped the same way, except that the shape of the lobes would change along the length of the screw, so that the volume of the trapped pockets would get squeezed smaller as they get closer to the exhaust port.

4. Pneumatic motor - Wikipedia

   en.wikipedia.org/wiki/Pneumatic_motor

   The first mechanically powered submarine, the 1863 French submarine Plongeur, used a compressed-air engine. Musée de la Marine (Rochefort). 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 ...

5. Compressed-air vehicle - Wikipedia

   en.wikipedia.org/wiki/Compressed-air_vehicle

   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.

6. Angelo Di Pietro (inventor) - Wikipedia

   en.wikipedia.org/wiki/Angelo_Di_Pietro_(inventor)

   In 1999, he made a major design breakthrough with a rotary motor which runs on compressed air. [1] The engine was called the Angelo Di Pietro Rotary Positive Displacement Air Engine and Di Pietro claims that his engine is 100% more efficient than competitors' products and that the reduction in friction will allow the engine to turn with a ...

7. Idle air control actuator - Wikipedia

   en.wikipedia.org/wiki/Idle_air_control_actuator

   The result is an engine that fails to maintain idle RPM and frequently stalls. A jammed actuator may be freed simply by cleaning it. However an actuator that has stopped working due to a fault in its servomotor will need replacement. Air leaks in either the stepper housing or pipes will cause elevated idle RPM.