飞机燃油箱惰化系统在燃油箱中提供惰性气氛，以最大限度地减少燃油蒸汽的爆炸性点燃。本SAE航空航天信息报告（AIR）介绍了目前在运行飞机中使用的三种油箱惰化系统方法:（1）机载惰性气体生成系统（OBIGGS），（2）液态/气态氮系统，以及（3）哈龙系统。OBIGGS和氮气系统通常设计用于提供全时油箱防火；哈龙系统通常设计为仅提供按需或特定作战保护。 本文件还阐述了影响燃油箱可燃性的其他设计考虑因素，如燃油箱压力和其他降低燃油箱可燃性的方法。该空气不处理某些军用飞机上用于油箱防爆的抑爆泡沫（ESF）。ESF也可用于商用飞机的改装。泡沫的主要缺点是重量、可用燃油的减少，以及在油箱维护或检查时必须去除泡沫时增加的维护复杂性。AIR4170是使用ESF进行油箱防爆的极好参考。 请注意，在军用和商用航空行业中，关于油箱惰化的术语有所不同。在军事应用中，该系统被称为车载惰性气体生成系统（OBIGGS）。监管机构使用术语可燃性降低方法（FRM）。OEM在商业应用中使用几个术语:油箱惰化系统（FTIS）、可燃性降低系统（FRS）、惰性气体系统（IGS）和氮气生成系统（NGS）。

An airplane fuel tank inerting system provides an inert atmosphere in a fuel tank to minimize explosive ignition of fuel vapor.This SAE Aerospace Information Report (AIR) deals with the three methods of fuel tank inerting systems currently used in operational aircraft: (1) on-board inert gas generation systems (OBIGGS), (2) liquid/gaseous nitrogen systems, and (3) halon systems. The OBIGGS and nitrogen systems generally are designed to provide full-time fuel tank fire protection; the halon systems generally are designed to provide only on-demand or combat-specific protection.This document also addresses other design considerations that affect fuel tank flammability such as fuel tank pressure and other methods for reducing fuel tank flammability.This AIR does not treat the subject of explosion suppression foam (ESF) that has been used for fuel tank explosion protection on some military aircraft. ESF is also available for retrofit for commercial airplanes. The primary disadvantages of foam are weight, reduction of usable fuel, and the added maintenance complexity when the foam must be removed for tank maintenance or inspection. AIR4170 is an excellent reference for the use of ESF for fuel tank explosion protection.Note that across the military and commercial aviation industry, different terminology has been used regarding fuel tank inerting. In military applications, the system is referred to as on-board inert gas generation system (OBIGGS). Regulatory agencies use the term flammability reduction means (FRM). OEMs in commercial applications use several terms: fuel tank inerting system (FTIS), flammability reduction system (FRS), inert gas system (IGS) and nitrogen generation system (NGS).