Gas separation: processes – Selective diffusion of gases – Selective diffusion of gases through substantially solid...
Reexamination Certificate
2007-12-11
2007-12-11
Lawrence, Frank M. (Department: 1724)
Gas separation: processes
Selective diffusion of gases
Selective diffusion of gases through substantially solid...
Reexamination Certificate
active
10973374
ABSTRACT:
Improvements in aircraft on-board inert gas generating systems wherein generally excess or surplus compressed airflow from a radial flow centrifugal compressor, produced in order to keep the compressor from surging in predetermined “reduced speed/reduced pressure ratio” operating modes, is utilized for at least one of driving a turbofan for conditioning the air separator module inlet air, or warming up/heating an air separator module in the inert gas generating system, thereby utilizing at least some of the energy of this excess/surplus compressed air that would otherwise be wasted. Several preferential operational methods and structural systems are set forth.
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Hunter Christopher H.
Lawrence Frank M.
Parker-Hannifin Corporation
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