The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 21, 1987
Filed:
Dec. 24, 1984
The Boeing Company, Seattle, WA (US);
Abstract
Improvements in oxygen generators and inert gas generators in aircraft. Separate gas generators are inefficient and thus present the problems of excess weight and heavy space and bleed air requirements. This invention provides an integrated system of generating oxygen and inert gas to pre-enrich the supply gas and increase overall efficiency. Bleed air is supplied to a first module (14) that separates it into a nitrogen enriched product gas and an oxygen enriched waste gas. The waste gas is fed into a second module (26) which separates it into an oxygen enriched product gas and a second waste gas. The modules (14, 26) may be reversed, with bleed air being fed into the oxygen generator and waste gas being fed into the inert gas generator. The system may include three modules (34, 42, 56). The waste gas from first module (34) is fed into second module (56), and the waste gas from second module (56) and the product gas from first module (34) are fed into third module (42).