Three flow architecture and method for aircraft OBIGGS

Details Three flow architecture and method for aircraft OBIGGS Three flow architecture and method for aircraft OBIGGS

2006-01-20

2009-10-27

Hopkins, Robert A (Department: 1797)

Gas separation: processes

With control responsive to sensed condition

Concentration sensed

C095S047000, C096S004000, C141S063000, C141S064000

Reexamination Certificate

active

07608131

ABSTRACT:
An air separation system and method wherein the outlet of a primary air separation module (one or more modules or bundles of fiber membranes) is split into two flow paths, a low flow path and a high flow path. The outlet of a secondary air separation module (one or more modules or bundles of fiber membranes) is split into two flow paths, a mid flow path and a high flow path, the latter being joined with the high flow of the primary air separation module. Flow along the primary low flow passes through a low-flow orifice, flow along the secondary mid-flow path passes through a mid-flow orifice, and flow along the high flow paths of both the primary and secondary air separation modules is joined together for passage through a shutoff valve and a high flow orifice. This configuration allows for three different flow modes of operation.

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