The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Oct. 15, 2024

Filed:

Oct. 09, 2023
Applicants:

Trane Air Conditioning Systems (China) Co., Ltd., Jiangsu, CN;

Trane International Inc., Davidson, NC (US);

Inventors:

Xuefeng Chen, Taicang, CN;

Bang Yu Wang, Taicang, CN;

Qing Hao Wang, Taicang, CN;

De Bin Cao, Taicang, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61L 9/20 (2006.01); F04D 29/28 (2006.01); F04D 29/42 (2006.01); F04D 29/70 (2006.01); F24F 1/0022 (2019.01); F24F 8/22 (2021.01);
U.S. Cl.
CPC ...
A61L 9/205 (2013.01); F04D 29/281 (2013.01); F04D 29/4226 (2013.01); F04D 29/701 (2013.01); F24F 1/0022 (2013.01); A61L 2209/12 (2013.01); A61L 2209/16 (2013.01); F24F 8/22 (2021.01);
Abstract

A centrifugal fan for a heating, ventilation, air conditioning, and refrigeration (HVACR) system is disclosed. The centrifugal fan includes a volute housing having an inner surface and a curved inlet shroud. The volute housing defines an air outlet. The curved inlet shroud defines an air inlet. The air inlet has an inlet airflow cross-sectional area that lies substantially perpendicular to an outlet airflow cross-sectional area of the air outlet. The centrifugal fan also includes an impeller mounted for rotation about a rotational axis within the volute housing. The impeller has a plurality of fan blades. The plurality of fan blades has an outer surface. The centrifugal fan further includes a light source. The inner surface of the volute housing and the outer surface of the plurality of fan blades includes a photocatalyst layer. The light source is configured to emit light on the photocatalyst layer.


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