Chemical oxygen system for aircraft crew with short-term and long-term duration

摘要

A chemical oxygen core for a chemical oxygen generator comprises at least one layer of an oxygen evolution composition. In some examples, the at least one layer comprises a metal powder fuel, a transition metal oxide catalyst, and an oxygen source. In various examples, the at least one layer comprises less than about 0.1% by weight of the transition metal oxide catalyst. In some examples, a chemical oxygen generator comprises a chemical oxygen core and a perforated metal cover that surrounds the chemical oxygen core along the length of the chemical oxygen core. In some embodiments, the perforated metal cover has an aperture ratio of about 0-100%.