Aircraft environmental control system
AssigneeHamilton Sundstrand Corporation
InventorsYonghua ZHU, Catherine THIBAUD
Life of this patent
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Abstract
An aircraft environmental control system includes means for mixing and conditioning bleed air from a bleed air input and recirculation air from an aircraft interior to provide mixed, conditioned air to the aircraft interior. The system also includes a first contaminant removal device and a second contaminant removal device arranged in a path of at least part of the recirculation air, prior to the means for mixing and conditioning, and a valve (SV1) arranged to alternate flow of recirculation air through the first and second contaminant removal devices.
Claims10
An aircraft environmental control system, comprising:
- means for mixing and conditioning bleed air from a bleed air input and recirculation air from an aircraft interior to provide mixed, conditioned air to the aircraft interior;
- a first contaminant removal device and a second contaminant removal device arranged in a path of at least part of the recirculation air, prior to the means for mixing and conditioning;
- and
- a valve (SV1) arranged to alternate flow of recirculation air through the first and second contaminant removal devices.
A method of providing conditioned air to an aircraft interior comprising:
- mixing and conditioning bleed air and recirculation air from the aircraft to provide mixed conditioned air to the aircraft interior;
- and
- removing one or more contaminants from the recirculation air, prior to mixing, by passing the recirculation air through one of two contaminant removal devices and alternating the flow of recirculation air from passing through one of the contaminant removal devices to passing through the other contaminant removal device.
Dependencies are inferred from the claim text.