Title:
AIRCRAFT FUEL TANK FLAMMABILITY REDUCTION METHOD AND SYSTEM
Document Type and Number:
WIPO Patent Application WO/2014/058515
Kind Code:
A3
Abstract:
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.
Inventors:
EVOSEVICH BARBARA J (US)
JOJIC IVANA (US)
JOJIC IVANA (US)
Application Number:
PCT/US2013/052133
Publication Date:
June 05, 2014
Filing Date:
July 25, 2013
Export Citation:
Assignee:
BOEING CO (US)
International Classes:
B64D37/32
Domestic Patent References:
| WO2006079782A2 | 2006-08-03 |
Foreign References:
| US20090302163A1 | 2009-12-10 |
Other References:
ISMAIL A F ET AL: "A review on the latest development of carbon membranes for gas separation", JOURNAL OF MEMBRANE SCIENCE, ELSEVIER SCIENTIFIC PUBL.COMPANY. AMSTERDAM, NL, vol. 193, no. 1, 31 October 2001 (2001-10-31), pages 1 - 18, XP004300375, ISSN: 0376-7388, DOI: 10.1016/S0376-7388(01)00510-5
SAUFI S M ET AL: "Fabrication of carbon membranes for gas separation--a review", CARBON, ELSEVIER, OXFORD, GB, vol. 42, no. 2, 1 January 2004 (2004-01-01), pages 241 - 259, XP004483335, ISSN: 0008-6223, DOI: 10.1016/J.CARBON.2003.10.022
SAUFI S M ET AL: "Fabrication of carbon membranes for gas separation--a review", CARBON, ELSEVIER, OXFORD, GB, vol. 42, no. 2, 1 January 2004 (2004-01-01), pages 241 - 259, XP004483335, ISSN: 0008-6223, DOI: 10.1016/J.CARBON.2003.10.022
Attorney, Agent or Firm:
WOO, Euclid et al. (PO Box 2515MC 110-SD5, Seal Beach California, US)
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