Header Is Rounded In Cross Section (e.g., Circular, Oval) Patents (Class 165/DIG488)
  • Heat exchanger constructed by a plurality of tubes
    Patent number: 5924485
    Abstract: An inside wall surface of a cap covering the end portion of a header tank is formed into a spherical shape, and a connecting portion between the inside wall surface of the cap and a inside wall surface of a tank portion is separated away from a connecting portion between the inside wall surface of the tank portion and an outside wall surface of a tube. Thus, the brazing material is suctioned into both connecting portions (both gaps) sufficiently, and both connecting portions are brazed firmly.
    Type: Grant
    Filed: May 7, 1998
    Date of Patent: July 20, 1999
    Assignee: Denso Corporation
    Inventors: Osamu Kobayashi, Ken Yamamoto