Noritz Corporation

Masaya Tateyama

Wataru Ooshita

Yukiko Noguchi

Satoshi Yoshida

A heat exchanger includes a heat transfer tube and a baffle. The baffle includes a main body portion, a first protruding portion, a second protruding portion, a first wall, and a second wall. The first protruding portion protrudes from the main body portion into a first space and the second protruding portion protrudes into a second space. The first wall includes a first protruding wall and a second protruding wall. The second wall includes a third protruding wall and a fourth protruding wall. The first protruding wall and the third protruding wall protrude into the first space and the second protruding wall and the fourth protruding wall protrude into the second space.

Heat exchanger and hot water apparatus

According to the present invention, a heat exchanger comprises a fin having a plurality of through holes. The plurality of through holes include mutually adjacent first and second through holes disposed on a side closest to a heating gas's inlet side. The fin has a slit located between the first through hole and the second through hole and cut into the fin from an edge thereof located on the heating gas's inlet side to a side farther from the heating gas's inlet side than a reference line connecting a center of the first through hole and a center of the second through hole. Furthermore, the fin has at least one opening between the slit and the first and second through holes. The opening includes a first opening having a portion located on the side farther from the heating gas's inlet side than the reference line.

Growing community of inventors

Kakogawa, Japan

Masaya Tateyama