Efficient heat exchanger and engine using same
    1.
    发明申请
    Efficient heat exchanger and engine using same 有权
    高效换热器和发动机使用相同

    公开(公告)号:US20050217835A1

    公开(公告)日:2005-10-06

    申请号:US10813282

    申请日:2004-03-30

    摘要: Some engine applications place spatial constraints on heat exchangers, such as oil coolers. In such a case, a heat exchanger having an oblong rather than a circular cross section can satisfy spatial constraints, and with certain internal geometry, may permit improved heat rejection performance while potentially enabling a cost reduction through a reduction in materials. The heat exchanger has a housing which defines a heat exchanging cavity within which a tube bundle is positioned. The tube bundle is made up of a plurality of tubes in a hexagonal packing pattern that are supported by a plurality of baffles. The tube bundle and the housing define a serpentine flow path between an inlet and an outlet. The serpentine flow path includes a plurality of segments that are generally perpendicular to the tubes, and these segments are separated by flow direction changing windows. The tube bundle has a gap distance at the windows that is relatively large, and a gap distance away from the windows that is relatively small. In addition, each of the tubes of the tube bundle is adjacent to at least three other tubes, such that the perimeter set of tubes creates a hexagonal shape.

    摘要翻译: 一些发动机应用在诸如油冷却器之类的热交换器上存在空间限制。 在这种情况下,具有长圆形而不是圆形横截面的热交换器可以满足空间限制,并且在某些内部几何形状下可以允许改进的散热性能,同时潜在地通过减少材料来降低成本。 热交换器具有壳体,其限定了管束定位在其内的热交换空腔。 管束由多个由多个挡板支撑的六角填料图案的管构成。 管束和壳体在入口和出口之间限定蛇形流动路径。 蛇形流动路径包括大致垂直于管的多个段,并且这些段由流动方向改变窗口分开。 管束在窗口处具有相对较大的间隙距离,并且距离相对较小的窗口的间隙距离。 此外,管束的每个管与至少三个其他管相邻,使得周边的管组形成六边形形状。