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US 10,703,491 B2Granted
Aircraft cabin air monitor
AssigneeHamilton Sunstrand Corporation
InventorsLance R. Bartosz, Catherine Thibaud, Joseph V. Mantese, Brian St. Rock
Life of this patent
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Abstract
An environmental control system that includes a first environmental control system pack, a first recirculation fan assembly, and a cabin air sensor unit. The first environmental control system pack is arranged to provide conditioned air to an aircraft cabin. The first recirculation fan assembly is arranged to recirculate a first cabin air fluid flow back to the aircraft cabin. The cabin air sensor unit is arranged to provide a first air quality signal indicative of an air quality of the first cabin air fluid flow to a controller.
Claims8
An environmental control system, comprising:
- a first environmental control system pack having a first inlet that receives a first fluid flow from a first air source and a first outlet, wherein the first outlet provides the first fluid flow to a mixing manifold;
- a first recirculation fan assembly having a first recirculation inlet that receives a first cabin air fluid flow from an aircraft cabin and a first recirculation outlet;
- a cabin air sensor unit in fluid communication with the first recirculation outlet, the cabin air sensor unit being arranged to provide a first air quality signal indicative of an air quality of the first cabin air fluid flow to a controller, wherein the controller is in communication with the first environmental control system pack, wherein the cabin air sensor unit is in fluid communication with the second recirculation outlet;
- a second environmental control system pack having a second inlet that receives a second fluid flow from a second air source and a second outlet that provides the second fluid flow to the mixing manifold;
- and
- a second recirculation fan assembly having a second recirculation inlet that receives a second cabin air fluid flow from the aircraft cabin and a second recirculation outlet that provides the second cabin air fluid flow to the mixing manifold,
- wherein the cabin air sensor unit is arranged to provide a second air quality signal indicative of an air quality of the second cabin air fluid flow to the controller.
4 more elements
An environmental control system, comprising:
- a first environmental control system pack having a first inlet that receives a first fluid flow from a first air source, a first heat exchanger fluidly connected to and disposed downstream of the first inlet, a first condenser fluidly connected to and disposed downstream of the first heat exchanger, and a first outlet that provides the first fluid flow to a mixing manifold;
- a first recirculation fan assembly having a first recirculation inlet that receives a first cabin air fluid flow from an aircraft cabin and a first recirculation outlet that provides the first cabin air fluid flow to the mixing manifold;
- and
- a cabin air sensor unit is in fluid communication with at least one of an outlet of the first heat exchanger, an outlet of the first condenser, and the first recirculation outlet,
- wherein the cabin air sensor unit is arranged to provide a first air quality signal indicative of an air quality of at least one of the first fluid flow and the first cabin air fluid flow to a controller;
- a second environmental control system pack having a second inlet that receives a second fluid flow from a second air source, a second heat exchanger fluidly connected to and disposed downstream of the second inlet, a second condenser fluidly connected to and disposed downstream of the second heat exchanger, and a second outlet that provides the second fluid flow to the mixing manifold;
- and
- a second recirculation fan assembly having a second recirculation inlet that receives a second cabin air fluid flow from the aircraft cabin and a second recirculation outlet that provides the second cabin air fluid flow to the mixing manifold,
- wherein the cabin air sensor unit is in fluid communication with at least one of an outlet of the second heat exchanger, an outlet of the second condenser, and the second recirculation outlet,
- wherein the cabin air sensor unit being arranged to provide a second air quality signal indicative of an air quality of at least one of the second fluid flow and the second cabin air fluid flow to the controller.
7 more elements
Dependencies are inferred from the claim text.