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:
Jul. 26, 2016

Filed:

Aug. 06, 2009
Applicants:

Seiji Kagawa, Hiroshima-ken, JP;

Moritoshi Murakami, Hiroshima-ken, JP;

Yuichiro Sato, Hiroshima-ken, JP;

Naoyuki Kamiyama, Hiroshima-ken, JP;

Tsuyoshi Miyaji, Hiroshima-ken, JP;

Inventors:

Seiji Kagawa, Hiroshima-ken, JP;

Moritoshi Murakami, Hiroshima-ken, JP;

Yuichiro Sato, Hiroshima-ken, JP;

Naoyuki Kamiyama, Hiroshima-ken, JP;

Tsuyoshi Miyaji, Hiroshima-ken, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F28F 9/02 (2006.01); F28F 9/22 (2006.01); F28F 19/00 (2006.01); F15D 1/04 (2006.01); F22B 1/18 (2006.01); F22B 1/02 (2006.01); F22B 37/40 (2006.01); F23M 9/00 (2006.01);
U.S. Cl.
CPC ...
F22B 37/40 (2013.01); F22B 1/18 (2013.01); F23M 9/003 (2013.01);
Abstract

In a heat exchanger that includes an expanded part of a duct, a heat-transfer tube bundle accommodating duct, and a plurality of heat-transfer tube bundles provided in the heat-transfer tube bundle accommodating duct in a flow direction of flue gas with a distance therebetween, a bare-tube-part upstream-side regulating plate and a bare-tube-part downstream-side regulating plate at an upstream side and a downstream side of a bare tube part of each of the heat-transfer tube bundles and a plurality of regulating plates in an introducing unit arranged either in the expanded part of a duct or in the heat-transfer tube bundle accommodating duct on an upstream side to the heat-transfer tube bundle are provided. A drift at the bare tube part of the heat-transfer tube bundles can be significantly reduced.


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