compressor bleed

См. также в других словарях:

• compressor bleed air — Air taken out of the compressor section of a gas turbine engine to prevent compressor stall and operate cabin pressurization and air conditioning systems. Air may also be bled from the compressor for boundary layer control …   Aviation dictionary

• Bleed air — in gas turbine engines is compressed air taken from within the engine, after the compressor stage(s) and before the fuel is injected in the burners. While in theory bleed air could be drawn in any gas turbine engine, its usage is generally… …   Wikipedia

• Compressor stall — A compressor stall is a situation of abnormal airflow resulting from a stall of the aerofoils within the compressor of a jet engine. Stall is found in dynamic compressors, particularly axial compressors, as used in jet engines and turbochargers… …   Wikipedia

• bleed valve — A valve designed to relieve the back pressure in a compressor, which helps to reduce the angle of attack of the rotor blades and prevent compressor stall and compressor surge. A bleed valve permits higher mass airflow through the compressor and… …   Aviation dictionary

• Axial compressor — Axial compressors are rotating, aerofoil based compressors in which the working fluid principally flows parallel to the axis of rotation. This is in contrast with centrifugal, axi centrifugal and mixed flow compressors where the air may enter… …   Wikipedia

• Centrifugal compressor — Centrifugal compressors, sometimes termed radial compressors, are a sub class of dynamic axisymmetric work absorbing turbomachinery.[1] Centrifugal impeller with a highly polished surface likely to improve performance …   Wikipedia

• cross-bleed — i. An air ducting system used in multiengine turbojet aircraft in which compressor bled air from one engine can be directed to the other engine and can be used to operate an air starter. ii. A pneumatic system designed in such a way that it is… …   Aviation dictionary

• oil bleed line — An external oil line which circumvents the evaporator pressure regulator or bypass valve to ensure positive oil return to the compressor when rpm are high and the system is under a low charge or clogged …   Dictionary of automotive terms

• oil bleed passage — An internal orifice which bypasses the evaporator pressure regulator, the bypass valve or the expansion valve to ensure positive oil return to the compressor …   Dictionary of automotive terms

• Components of jet engines — Diagram of a typical gas turbine jet engine. Air is compressed by the fan blades as it enters the engine, and it is mixed and burned with fuel in the combustion section. The hot exhaust gases provide forward thrust and turn the turbines which… …   Wikipedia

• Jet engine performance — This article describes how jet engine performance is estimated during the design phase. Similar techniques are used once the engine has been built and is being tested, except the performance of individual components, rather than being assumed, is …   Wikipedia