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  2. Bleed air - Wikipedia

    en.wikipedia.org/wiki/Bleed_air

    Bleed air in aerospace engineering is compressed air taken from the compressor stage of a gas turbine, upstream of its fuel-burning sections.Automatic air supply and cabin pressure controller (ASCPC) valves bleed air from low or high stage engine compressor sections; low stage air is used during high power setting operation, and high stage air is used during descent and other low power setting ...

  3. File:ECSB737-300ENGINES ON.svg - Wikipedia

    en.wikipedia.org/wiki/File:ECSB737-300ENGINES_ON.svg

    Deutsch: Environmental Kontrol System ECS der Boeing 737-300, bei laufenden Treibwerken (1) Zapfluft vom linken Triebwerk (engine bleed air - stark komprimiert, deshalb sehr heiß, hinter dem Kompressor abgezapft); (2) Kühlluft aus dem vorderen Triebwerksbereich (fan air - fast nicht komprimiert, deshalb fast nicht erwärmt; (3) Luft von der APU (APU-air - eine der Hauptaufgaben der APU ...

  4. Components of jet engines - Wikipedia

    en.wikipedia.org/wiki/Components_of_jet_engines

    Low pressure (40–70 psi or 280–480 kPa), high volume air from the compressor section of the APU is bled off through a system of pipes to the engines where it is directed into the starting system. This bleed air is directed into a mechanism to start the engine turning and begin pulling in air. The starter is usually an air turbine type ...

  5. Template:Aircraft gas turbine engine components - Wikipedia

    en.wikipedia.org/wiki/Template:Aircraft_gas...

    This page was last edited on 22 November 2024, at 01:31 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.

  6. Automatic bleeding valve - Wikipedia

    en.wikipedia.org/wiki/Automatic_bleeding_valve

    Brass-bodied float valve. An automatic bleeding valve or air release valve (ARV) is a plumbing valve used to automatically release trapped air from a heating system. Air, or other gas, may collect within plumbing. For water delivery systems to taps and basins, particularly with good main supply pressure, this air is usually flushed through with ...

  7. Aircraft engine starting - Wikipedia

    en.wikipedia.org/wiki/Aircraft_engine_starting

    The compressed air can be supplied from an on-board auxiliary power unit (APU), a portable gas generator used by ground crew or by cross feeding bleed air from a running engine in the case of multi-engined aircraft. [19] The Turbomeca Palouste gas generator was used to start the Spey engines of the Blackburn Buccaneer.

  8. Environmental control system - Wikipedia

    en.wikipedia.org/wiki/Environmental_control_system

    The quantity of bleed air flowing to the AC pack is regulated by the flow control valve (FCV). One FCV is installed for each PACK. A normally closed isolation valve prevents air from the left bleed system from reaching the right PACK (and vice versa), although this valve may be opened in the event of loss of one bleed system.

  9. Auxiliary power unit - Wikipedia

    en.wikipedia.org/wiki/Auxiliary_power_unit

    The first German jet engines built during the Second World War used a mechanical APU starting system designed by the German engineer Norbert Riedel.It consisted of a 10 horsepower (7.5 kW) two-stroke flat engine, which for the Junkers Jumo 004 design was hidden in the intake diverter, essentially functioning as a pioneering example of an auxiliary power unit for starting a jet engine.

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