公开(公告)号：US12179926B2

公开(公告)日：2024-12-31

申请号：US17349224

申请日：2021-06-16

Applicant: The Boeing Company

Inventor： Stephen M. Trent ,  David R. Space ,  Stephanie K. Licht

IPC: B64D13/08 ,  B64D13/06 ,  B64F5/30 ,  B60H3/00 ,  F24F110/65

Abstract: Described herein are methods and systems for decontaminating aircraft cabins and providing an indication to provide confidence that the cabins are safe for reentry post-operation. These methods and systems are based on reducing concentrations of infectious agents inside a cabin utilizing outside air and/or filtered air. In some examples, a method is performed after a certain contamination event (e.g., a sick person present on a flight and/or as a part of periodic service (e.g., in between flights. The amount of time the system is run to introduce compounds into the cabin is specifically calculated to lower the fraction of the remaining infectious agents below a certain desired level, thereby reducing the contamination concentration in the cabin from the initial concentration. The decontamination duration depends on the cabin volume and the incoming airflow rates. For example, the fraction of the remaining is brought below 5% after 9 minutes of flowing incoming air at 20 air changes per hour.

公开(公告)号：US11904267B2

公开(公告)日：2024-02-20

申请号：US17192366

申请日：2021-03-04

Applicant: THE BOEING COMPANY

Inventor： Bryce A. Vandyke ,  Kevin S. Callahan ,  Stephen M. Trent

IPC: B01D46/00 ,  A61L9/014 ,  A61L9/20 ,  B01D39/20 ,  B01D46/24 ,  B01D46/42 ,  B01D46/44 ,  B01D46/52 ,  B64D13/06

CPC classification number: B01D46/0028 ,  A61L9/014 ,  A61L9/20 ,  B01D39/2055 ,  B01D46/0004 ,  B01D46/0005 ,  B01D46/2414 ,  B01D46/4245 ,  B01D46/442 ,  B01D46/444 ,  B01D46/521 ,  B64D13/06 ,  A61L2209/12 ,  A61L2209/14 ,  A61L2209/15 ,  A61L2209/16 ,  A61L2209/22 ,  B01D2265/04 ,  B01D2279/40 ,  B01D2279/65 ,  B64D2013/0651 ,  B64D2013/0688

Abstract: An apparatus for irradiating air flow in a vehicle includes a filter unit configured to couple to a recirculating-air conduit connected to a manifold of an air circulation system, the filter unit having an inlet end, and a filter disposed in the inlet end of the filter unit, including an outer wall of filter media having a shape that defines an interior volume of the filter. The apparatus further includes an ultraviolet light disposed on an end plate, configured to be mounted with the ultraviolet light positioned in the interior volume of the filter and the end plate against an open end of the filter. The ultraviolet light is configured to emit ultraviolet radiation substantially at between 222 nm and 265 nm for irradiating air flow through the filter into the air circulation system.

公开(公告)号：US20220118899A1

公开(公告)日：2022-04-21

申请号：US17405359

申请日：2021-08-18

Applicant: THE BOEING COMPANY

Inventor： David R. Space ,  James A. Fullerton ,  Timothy J. Arnaud ,  Jon Burton Shaw ,  Stephen M. Trent ,  Ty A. Larsen ,  Myriam Khalil

IPC: B60N2/879 ,  B60N2/56 ,  A61L9/20

Abstract: A headrest ventilation assembly is configured to secure to a headrest of a seat assembly, and includes an air conduit including one or more air inlets and one or more air outlets, and an air filter disposed within the air conduit between the one or more air inlets and the one or more air outlets. The air filter is configured to remove contaminants from the air that is drawn into the air conduit before being delivered out of the one or more air outlets. The assembly can also include a fan disposed on or within the air conduit. The fan is configured to draw the air into the one or more air inlets and provide airflow to deliver the air out of the one or more air outlets. The assembly can also include one or more ultraviolet (UV) light emitters disposed on or within the air conduit. The UV light emitter(s) are configured to emit UV light into the air to sanitize the air before the air is delivered out of the one or more air outlets.

公开(公告)号：US20210394911A1

公开(公告)日：2021-12-23

申请号：US17349224

申请日：2021-06-16

Applicant: The Boeing Company

Inventor： Stephen M. Trent ,  David R. Space ,  Stephanie K. Licht

IPC: B64D13/08 ,  B64F5/30

Abstract: Described herein are methods and systems for decontaminating aircraft cabins and providing an indication to provide confidence that the cabins are safe for reentry post-operation. These methods and systems are based on reducing concentrations of infectious agents inside a cabin utilizing outside air and/or filtered air. In some examples, a method is performed after a certain contamination event (e.g., a sick person present on a flight and/or as a part of periodic service (e.g., in between flights. The amount of time the system is run to introduce compounds into the cabin is specifically calculated to lower the fraction of the remaining infectious agents below a certain desired level, thereby reducing the contamination concentration in the cabin from the initial concentration, The decontamination duration depends on the cabin volume and the incoming airflow rates. For example, the fraction of the remaining is brought below 5% after 9 minutes of flowing incoming air at 20 air changes per hour.

公开(公告)号：US11175210B2

公开(公告)日：2021-11-16

申请号：US16449748

申请日：2019-06-24

Applicant: The Boeing Company

Inventor： Brian P. Berryessa ,  David R. Space ,  Timothy J. Arnaud ,  Stephen M. Trent

IPC: G01N15/08 ,  B01D46/42

Abstract: A method for evaluating an air purification system. The method includes generating, with an air flow generator, a flow of air through a test filter so that an upstream air flow exists an upstream side of the test filter and a downstream air flow exists on a downstream side of the test filter. A multiple contaminant mixture is injected, with a fluid injector, into the upstream air flow. Downstream concentrations for each contaminant of the multiple contaminant mixture in the downstream air flow are measured with a contaminant measurement device. Test filter breakthrough curves for each contaminant of the multiple contaminant mixture in the downstream air flow are generated based on the downstream concentrations for each contaminant of the multiple contaminant mixture.

公开(公告)号：US20190100318A1

公开(公告)日：2019-04-04

申请号：US15724647

申请日：2017-10-04

Applicant: The Boeing Company

Inventor： David R. Space ,  Stephen M. Trent ,  Dale A. Scheer ,  Warren A. Atkey ,  Anil Kumar Salgar

IPC: B64D13/06 ,  B01D53/04 ,  B01D53/86 ,  B01D53/72 ,  B01D53/62 ,  B01D53/96 ,  B01D53/34

Abstract: An Environmental Control Systems (ECS) for an aerospace vehicle comprises an air supply airflow path inputting, monitoring, and conditioning air from external to the vehicle, and a recirculation airflow path inputting, monitoring, filtering, and moving air from one portion of the interior of the vehicle to another portion. The air supply airflow can include a dynamically controlled VOC/ozone converter, which can be operated when the aerospace vehicle is on the ground. The recirculation airflow path can include a dynamically controlled regenerative gas contaminant filter and/or VOC/CO2 removal device. The filter/adsorption media of the controlled regenerative gas contaminant filter and/or VOC/CO2 removal device can be regenerated by suppling hot air or a vacuum, and gaseous contaminants can be broken down for removal from the regenerative gas contaminant filter by controlling UV irradiation. The controller can alert a flight crew if air quality falls outside predetermined or programmable parameters.