公开(公告)号：US06269541B1

公开(公告)日：2001-08-07

申请号：US09300673

申请日：1999-04-27

Applicant: Takeshi Iguchi ,  Homare Kotate ,  Akira Uchikawa ,  Koji Hirakami

Inventor： Takeshi Iguchi ,  Homare Kotate ,  Akira Uchikawa ,  Koji Hirakami

IPC: B23K3100

CPC classification number: B23K1/0012 ,  B23K2101/14 ,  F28F1/126 ,  Y10T29/49377 ,  Y10T29/4938 ,  Y10T29/49393

Abstract: Fins and tubes are brazed by brazing material spread on the inside of bent portions. As the interval between the fins and the tubes does not increase upon melting the brazing material, the tubes and the fins can be easily piled and assembled with each other, and the operability in assembling a heat exchanger can be improved. Further, as the brazing material remains mainly around the bent portions, most parts of the fins and the tubes are not covered with the brazing material, and there is no diffusion of the brazing material at the heating of the brazing step. Accordingly, heat exchanging performance of the heat exchanger can be improved, and even if the thickness of the fins and that of the tubes are reduced, the occurrence of the erosion can be prevented.

Abstract translation: 金属丝和管被钎焊材料钎焊在弯曲部分的内侧。 由于翅片和管之间的间隔在钎焊材料熔化时不会增加，因此可以容易地将管和翅片堆叠并组装，并且可以提高组装热交换器的可操作性。 此外，由于钎焊材料主要保持在弯曲部分周围，所以散热片和管的大部分部分不被钎焊材料覆盖，并且在钎焊步骤的加热期间钎焊材料不会扩散。 因此，可以提高热交换器的热交换性能，即使减少散热片和管的厚度，也可以防止侵蚀的发生。

公开(公告)号：US06276447B1

公开(公告)日：2001-08-21

申请号：US09306344

申请日：1999-05-06

Applicant: Takeshi Iguchi ,  Homare Kotate ,  Akira Uchikawa ,  Kouji Hirakami

Inventor： Takeshi Iguchi ,  Homare Kotate ,  Akira Uchikawa ,  Kouji Hirakami

IPC: F28F1318

CPC classification number: F28D9/0043 ,  B23K1/0008 ,  B23K1/0012 ,  F28F9/0234 ,  F28F9/0246 ,  Y10T29/49393

Abstract: A tube is formed by brazing first and second plates, and is connected to a pipe through a connection block being brazed to a contacting surface of the first plate. A brazing material is clad on an inner surface of the first plate opposite to the contacting surface, and a hole penetrating through the first plate is formed in the first plate at a position corresponding to the connection block. Thus, during brazing, the brazing material clad on the inner surface of the first plate is supplied to the contacting surface through the hole by capillary phenomenon, so that the connection block is brazed to the first plate. As a result, an apparatus formed by brazing plural metal members, such as the tube of an oil cooler, is produced in low cost.

Abstract translation: 通过钎焊第一和第二板形成管，并且通过钎焊到第一板的接触表面的连接块连接到管。 钎焊材料包覆在与接触面相反的第一板的内表面上，并且穿过第一板的孔形成在与连接块对应的位置处的第一板中。 因此，在钎焊期间，通过毛细管现象将覆盖在第一板的内表面上的钎焊材料通过孔提供给接触表面，使得连接块钎焊到第一板。 结果，以低成本制造了通过钎焊多个金属构件（例如油冷却器的管）形成的装置。