Zexel Valeo Climate Control Corporation

Valeo Thermal Systems Japan Corporation

Jun Akaike

Shoji Akiyama

Soichi Kato

Muneo Sakurada

Yoshihisa Eto

Shin Kurihara

Naoto Takayanagi

Hajime Ohata

Kazuo Ochiai

In a tube () for a heat exchanger comprising a flat pipe () whose both ends are opened and in which a flow path () for a heat exchanging medium is formed, and an inner fin () arranged in the flow path (), wherein said flat pipe () is constituted of a sheet of material for a flat pipe, the inner fin is constituted of two opposing flat plate portions () connected along one of side edges of said flat pipe () and formed in a flat plate shape so as to be in contact with an inner surface of the said flat pipe (), and projection portions () which are projected from at least one of the flat plate portions () and whose tops are in contact with the other opposing flat plate portion (). It is preferred that the projection portions () are projected from both of the flat plate portions () toward the opposing flat plate portion, and the opposing tops are made come in contact with each other. The tube for a heat exchanger which can prevent significant deformation of the inner fin from occurring when the inner fin included in the flat pipe is cut in a width direction thereof together with the flat pipe can be provided.

Tube for heat exchanger

A heat exchanger is comprising a core which is consisting of tubes provided with medium passages and fins fitted to the tubes, and tanks to which ends of the tubes are connected, wherein the tube ( ) is formed to have a flat cross-sectional shape by joining ends of one or two plates, the ends of the plates have a contact portion which is formed by bending at least one of the plate ends a plurality of times and overlaying the one end on the other end, and the contact portion is provided with a joint portion ( c) which is formed by placing a part ( e) of the contact portion on the top or bottom flat surface and mutually engaging the both ends of the plate.

Heat exchanger, method of manufacturing the heat exchanger, and method of manufacturing tube for heat exchange

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Saitama, Japan

Jun Akaike