pressurization valve

См. также в других словарях:

• breather-pressurization valve — An aneroid operated valve in the overboard vent line of the engine lubrication system of some gas turbine engines. The valve is open at sea level but closes as the aircraft climbs and maintains sea level pressure inside the vent system …   Aviation dictionary

• pressurization and dump valve — A valve used in a turbine engine fuel system equipped with duplex nozzles. When the demand for fuel is low, it flows through the primary manifold. The pressurization valve opens at a high fuel flow to deliver fuel to the secondary manifold. At… …   Aviation dictionary

• Cabin pressurization — is the active pumping of compressed air into an aircraft cabin when flying at altitude to maintain a safe and comfortable environment for crew and passengers in the low outside atmospheric pressure.Pressurization is essential over 3,000 m (10,000 …   Wikipedia

• cabin pressurization safety valve — A combination pressure and vacuum valve meant to prevent cabin pressurization from exceeding safe limits. The valve normally combines the functions of overpressure relief valve, vacuum relief valve, and dump valve. The overpressure relief valve… …   Aviation dictionary

• Poppet valve — A poppet valve is a valve consisting of a hole, usually round or oval, and a tapered plug, usually a disk shape on the end of a shaft also called a valve stem. The shaft guides the plug portion by sliding through a valve guide. In most… …   Wikipedia

• manual depressurization valve — A backup valve in an aircraft pressurization system to control cabin pressurization by manually controlling the outflow of air from the cabin in the event of the failure of the automatic system …   Aviation dictionary

• negative pressure relief valve — A relief valve in an aircraft pressurization system that prevents the pressure in the cabin from becoming lower than the ambient outside pressure. The cabin air pressure safety valve combines functions of over pressure relief valve, vacuum relief …   Aviation dictionary

• outflow valve — A valve in the aircraft pressurization system that controls the pressure inside the cabin by controlling the amount of air allowed to flow out of the cabin. It is a type of pressure maintenance valve …   Aviation dictionary

• Buoyancy compensator (diving) — Stab jacket redirects here. For a type of body armor, see stab vest. A buoyancy compensator (or buoyancy control device, BC or BCD) is a piece of diving equipment worn by divers to provide: * life saving emergency buoyancy both underwater and on… …   Wikipedia

• Helios Airways Flight 522 — Artist s depiction of 5B DBY being met by two F 16s of the Hellenic Air Force at 34000 ft Accident summary Date …   Wikipedia

• Environmental Control System — The Environmental Control System of an airliner provides air supply, thermal control and cabin pressurization for the passengers and crew. Avionics cooling, smoke detection, and fire suppression are also commonly considered part of the… …   Wikipedia