Inerting systems: A320 inerting pallet
Designed for single-aisle aircraft, this lightweight and lower-cost fuel tank inerting pallet system offers higher performance and a modular design that supports on-wing maintenance. It effectively performs the safety-critical function of preventing a flammable mixture from forming in the ullage space above the aircraft’s fuel tank.
This single-aisle inerting pallet system provides inert gas to aircraft fuel tanks. The nitrogen enriched air (NEA)generation subsystem removes oxygen from the conditioned bleed airstream to supply the tanks with inert gas.
The air separation module (ASM) is the enabling technology element of the entire fuel tank inerting system. It uses semi-permeable, hollow fiber membranes inside the cylindrical canister to remove oxygen and produce the needed nitrogen-enriched air stream.
The palletized system features air filtration, over-temperature and fuel ingress protection, flow switching, system control, health monitoring, and NEA generation using the air separation module.
Most of the equipment upstream of the ASM is used to properly condition the ASM inlet air, ensuring optimal ASM performance and life. Parker’s single-aisle ASM pallet design offers a modular approach to support on-wing maintenance actions. The pallet is installed in non-pressurized belly-fairing compartments.