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:
Apr. 14, 2025

Filed:

May. 19, 2022
Applicant:

Hamilton Sundstrand Corporation, Charlotte, NC (US);

Inventors:

John Giuliano, North Granby, CT (US);

Viktor Kilchyk, Lancaster, NY (US);

Assignee:

Hamilton Sundstrand Corporation, Charlotte, NC (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K 26/342 (2013.12); B23K 26/352 (2013.12); B33Y 80/00 (2014.12); F28F 1/00 (2005.12); F28F 13/18 (2005.12);
U.S. Cl.
CPC ...
B23K 26/342 (2015.09); B23K 26/3584 (2018.07); B33Y 80/00 (2014.11); F28F 1/006 (2012.12); F28F 13/18 (2012.12);
Abstract

A heat exchanger core comprises a plurality of tubes extending along a first fluid axis, each of the plurality of tubes comprising a leading edge, a trailing edge opposite the leading edge, and a pair of oppositely disposed sidewalls extending from the leading edge to the trailing edge. The leading edge, trailing edge, and the pair of sidewalls define an inner surface and an outer surface of each of the plurality of tubes. Each of a first subset of the plurality of tubes further comprises a roughened region on the outer surface of one of the pair of sidewalls.


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