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    • 6. 发明授权
    • Folded tube for a heat exchanger and method for shaping it
    • 用于热交换器的折叠管及其成型方法
    • US06230533B1
    • 2001-05-15
    • US09458890
    • 1999-12-10
    • Jean-Louis LaveranJean-Claude NatyMichel Potier
    • Jean-Louis LaveranJean-Claude NatyMichel Potier
    • B21C3715
    • B21C37/14B21D5/12B21D53/04F28D1/0391Y10T29/49391
    • A folded tube for a motor vehicle heat exchanger, is made from a metal strip folded on itself so as to form two parallel channels separated by a spacer. The spacer results from the joining of two borders of the strip each being folded at right angles towards the inside of the tube from an outer face. Each of the borders is folded at right angles with respect to the outer face, forming a folded outer edge, and includes a protruding swelling which extends at least on the same side as the outer face of the strip. The invention makes it possible to produce a tube having flat large faces, the continuity of which is assured in the regions close to the spacer and which contributes to better holding of corrugated spacers in the heat exchanger.
    • 用于机动车辆热交换器的折叠管由其自身折叠的金属条制成,以形成由间隔件隔开的两个平行通道。 间隔物是由条带的两个边缘的接合形成的,每个边缘从外表面以直角折叠到管的内部。 每个边框相对于外表面以直角折叠,形成折叠的外边缘,并且包括至少在与带的外表面相同的一侧延伸的突出的膨胀。 本发明使得可以制造具有平坦的大面的管,其在靠近间隔件的区域中确保连续性,并且有助于在热交换器中更好地保​​持波纹间隔件。