Components of jet engines
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This article describes the components and systems found in jet engines. It uses two example engines; the type most familiar to the general public, the modern airliner engine, and the military afterbur
A bare engine. The Rolls-Royce Trent airliner engine. The engine is facing to the right.
A model of a V2500 engine.
The fan nozzle is the outer ring, with the fan out-of-sight beyond the curvature of the core cowl. The LP turbine is visible inside the core nozzle. The tube on the exhaust centerbody is the oil system air vent (see 'Oil System' section).
Nacelle thrust reverser.
Bleed air
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Bleed air in aerospace engineering is compressed air taken from the compressor stage of a gas turbine engine, upstream of its fuel-burning sections. Automatic air supply and cabin pressure controller
Components of jet engines
…are higher. Designers must, however, prevent the turbine blades and vanes from melting in a very high temperature and stress environment. Consequently, bleed air extracted from the compression system is often used to cool the turbine blades/vanes internally. Other solutions are improved materials and/or special…
Cabin pressure and bleed air controls in a Boeing 737-800
Boeing 787 Dreamliner is a primary example of modern "bleedless" airliners.