B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
244/1, 183/32
B01D 53/04 (2006.01) A62B 7/14 (2006.01) B01D 53/30 (2006.01) B64D 13/00 (2006.01)
Patent
CA 2013543
An aircraft on-board oxygen generation system having control means 14 for cycling sieve beds of a molecular sieve-type gas separation system 10, provides product gas having a partial pressure of oxygen that more closely approaches the ideal value at any cabin altitude within the operating range of the aircraft. The control means stores a look-up table of desired product gas oxygen content at various altitude levels within the operating range and displays desired product gas oxygen content at altitudes sensed by altitude sensor means 17 for comparison with delivered product gas oxygen content sensed by oxygen content sensor means 19. The control means provides for a range of selectable cycle time and adjusts the cycle time in the sense required to null the difference between displayed and sensed oxygen content of the product gas.
Hamlin Humphrey Albert Samuel
Harral Michael William
Borden Ladner Gervais Llp
Normalair-Garrett (holdings) Limited
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