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.
Patent No.:
Date of Patent:
Jul. 01, 2025
Filed:
Feb. 24, 2021
Applicant:
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Inventors:
Masaya Hatanaka, Tokyo, JP;
Hiroyuki Nakaharai, Tokyo, JP;
Nobuhide Hara, Tokyo, JP;
Yoichi Uefuji, Tokyo, JP;
Shunsaku Eguchi, Tokyo, JP;
Takuo Oda, Tokyo, JP;
Koichi Tanimoto, Tokyo, JP;
Masashi Kitamura, Tokyo, JP;
Assignee:
MITSUBISHI HEAVY INDUSTRIES, LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F28D 7/16 (2006.01); F28F 9/02 (2006.01); B33Y 10/00 (2015.01); B33Y 80/00 (2015.01);
U.S. Cl.
CPC ...
F28D 7/16 (2013.01); F28F 9/02 (2013.01); B33Y 10/00 (2014.12); B33Y 80/00 (2014.12);
Abstract
A heat exchanger core includes: a plurality of internal passages; and a header passage communicating with the plurality of internal passages. An inner wall of the header passage has greater surface roughness than passage walls of the plurality of internal passages.