Aircraft fuel tank flammability reduction method and system

An aircraft fuel tank flammability reduction method includes feeding pressurized air into an air separation module (12) containing a carbon membrane (13), the air feed exhibiting a normal pressure of no more than 55 psig and the carbon membrane containing at least 95 weight percent carbon. The metho...

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Bibliographic Details
Main Authors Jojic, Ivana, Evosevich, Barbara J
Format Patent
LanguageEnglish
Published 24.11.2016
Subjects
AIRCRAFT
ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSIONTRANSMISSIONS IN AIRCRAFT
AVIATION
COSMONAUTICS
EQUIPMENT FOR FITTING IN OR TO AIRCRAFT
FLYING SUITS
PARACHUTES
PERFORMING OPERATIONS
TRANSPORTING
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Summary:An aircraft fuel tank flammability reduction method includes feeding pressurized air into an air separation module (12) containing a carbon membrane (13), the air feed exhibiting a normal pressure of no more than 55 psig and the carbon membrane containing at least 95 weight percent carbon. The method includes producing nitrogen-enriched air from the air separation module (12) as a result of removing oxygen from the air feed. An aircraft fuel tank flammability reduction system includes a source for pressurized air, an air separation module (12) configured to receive air feed from the pressurized air source, and a carbon membrane (13) containing at least 95 weight percent carbon. The carbon membrane (13) is configured to permeate oxygen from the air feed through the carbon membrane at a temperature of at least 120 °C (248 °F) and to produce nitrogen-enriched air from the air separation module (12) as a result of removing oxygen from the air feed.
Bibliography:Application Number: AU20130330386