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History

Precursors :. -The first patent for using a gas turbine was filed in 1921 by   Maxime Guillaume. BUT : - the  piston engine  was the only type of powerplant available to aircraft designers.

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History

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  1. Precursors: -The first patent for using a gas turbine was filed in 1921 by  Maxime Guillaume. BUT : -the piston engine was the only type of powerplant available to aircraft designers. -This was acceptable as long as only low performance aircraft were required, and indeed all that were available. History

  2. Pre World War II The first jet engines are designed simultaneously but independently by Frank Whittlein England and Hans von Ohain in Germany in the 1930s. -In 1935, Frank Whittle built the first prototype jet engine: the W.1.The "Pioneer" aircraft equipped with the W1 and makes its first flight May 15, 1941. - similar to the drawing Whittle but differentinternal components of the engine. Von Ohainflew the first jet engine on a Heinkel He 178in 1939, the first aircraftdesigned to bepropelled by suchengines.

  3. Post World War II • -turbojet aircraft are built in series • 1950s: the jet engine was almost universal in combat aircraft, with the exception of cargo, liaison and other specialty types. • 1960s all large civilian aircraft were also jet powered. • 1970s with the advent of high bypass jet engines, the fuel efficiency finally exceed that of the best piston and propeller engines.

  4. Design air intake (or inlet): it is designed to be as efficient as possible at recovering the ram pressure of the air stream tube approaching the intake. The compressor: it is driven by the turbine and rotates at very high speed, adding energy to the airflow and at the same time compressing it into a smaller space. Compressing the air increases its pressure and temperature.

  5. Design Chamber of combustion: part of the engine in which the air and fuel mixture isburned. Turbine: Rotates because of the impact of the hot gas stream. Pressure drops, and energy is transferred into the shaft and used primarily to drive the compressor. Exhaust: the gases are allowed to expand through the exhaust nozzle to atmospheric pressure, producing a high velocity jet in the exhaust plume.

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