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:
Apr. 06, 2021
Filed:
Apr. 22, 2019
Applicant:
Rinnai Corporation, Aichi, JP;
Inventor:
Takashi Ojiro, Aichi, JP;
Assignee:
Rinnai Corporation, Aichi, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02M 31/08 (2006.01); F28D 21/00 (2006.01); F28D 9/00 (2006.01); F28F 3/02 (2006.01);
U.S. Cl.
CPC ...
F28D 21/0003 (2013.01); F28D 9/005 (2013.01); F28F 3/027 (2013.01);
Abstract
A heat exchanger includes a plurality of heat exchange units. Each of the plurality of heat exchange units includes: an internal space in which a fluid to be heated flows, a plurality of gas vents penetrating the internal space in a non-communicating state and through which combustion exhaust gas flows, at least one inlet port, and at least one outlet port. At least the one inlet port and at least the one outlet port in each of the heat exchange units are disposed at both ends in a longitudinal direction of the heat exchange unit and are shifted (offset) in a lateral direction of the heat exchange unit.