Air Purifier for Transportation Vehicles

a technology for transportation vehicles and purifiers, applied in the directions of transportation and packaging, separation processes, disinfection, etc., can solve the problems of health and environmental problems, large volume, and high power consumption

Inactive Publication Date: 2015-03-05
THE UNIV OF BRITISH COLUMBIA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0009]In another aspect, the present invention is a method of purifying airflow in transportation vehicles, comprising passing the airflow through a reactor including one or more photocatalyst structures; emitting ultraviolet radiation from one or more ultraviolet light emitting diodes (UV-LEDs) onto the photocatalyst structure; and eliminating chemical contaminants and microorganisms from the airflow that makes contact with the UV-activated photocatalyst structure while the photocatalyst is activated by the ultraviolet radiation emitted from the UV-LED.

Problems solved by technology

The radiation source is UV lamps, which are relatively bulky, require high power, and have health and environmental issues due to the mercury contained in them.
Furthermore, the UV lamps are typically needed replacing on a regular basis, leading to high maintenance costs.
There are harmful airborne contaminants and toxic organic chemicals within vehicles.

Method used

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  • Air Purifier for Transportation Vehicles
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Embodiment Construction

[0025]The following detailed description is of the best currently contemplated modes of carrying out the invention. The description is not to be taken in a limiting sense, but is made merely for the purpose of illustrating the general principles of the invention, since the scope of the invention is best defined by the appended claims.

[0026]In general, the present invention provides an air purifying system that eliminates chemical contaminants from airflow using a photocatalyst activated by UV radiation from a UV-LED. The airflow moves through the system by forced-convection preferably using an air-moving device such as an electrical fan. The photocatalyst is preferably supported on a porous substrate, where air passes through; or the photocatalyst is immobilized on a solid substrate, where air passes over. The photocatalyst may be titanium dioxide TiO2, or other photocatalysts. It may also be any combination of photocatalysts and catalyst supports, and co-catalysts (such as metals a...

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Abstract

A vehicle air purification system has a photocatalyst activated by photons emitted via an ultraviolet light emitting diode (UV-LED). The photocatalyst on a supporting structure is positioned to contact airflow passing through or over the photocatalyst. Chemical contaminants and microorganisms are eliminated from the airflow that makes contact with the photocatalyst structure.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application claims the benefit of U.S. Provisional Application No. 61 / 872742, filed Sep. 1, 2013, the disclosure of which is incorporated herein by reference.STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT[0002]Not ApplicableREFERENCE TO SEQUENCE LISTING, A TABLE, OR A COMPUTER PROGRAM LISTING COMPACT DISK APPENDIX[0003]Not ApplicableBACKGROUND OF THE INVENTION[0004]The present invention relates to air purification systems, and more particularly, to an air purification system for transportation vehicles using ultraviolet (UV) activated photocatalyst for the degradation of chemical pollutants and elimination of microorganisms.[0005]Advanced air purification systems can be applied to a wide range of purposes, from homes and offices to high-specification environments such as hospitals, laboratories, and industrial facilities. Ultraviolet (UV) photolysis and photocatalysis have been proved to be very effective for the eli...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A61L9/20
CPCA61L9/205B01D53/8668B01D2255/802B01D2259/4575B01D2259/804B64D13/06B64D2013/0651B64D2013/0688
Inventor TAGHIPOUR, FARIBORZ
Owner THE UNIV OF BRITISH COLUMBIA
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