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    • 43. 发明授权
    • Tube for heat exchangers and a method for manufacturing the tube
    • 用于热交换器的管和用于制造管的方法
    • US5186250A
    • 1993-02-16
    • US693955
    • 1991-04-29
    • Wataru OuchiKatsuhisa SuzukiToshinori TokutakeHirosaburo Hirano
    • Wataru OuchiKatsuhisa SuzukiToshinori TokutakeHirosaburo Hirano
    • F28D1/03F28F3/04
    • F28F3/044F28D1/0316F28D1/0391F28F3/04F28F3/042F28D2021/0084F28F2001/027F28F2275/122Y10T29/49373Y10T29/49378Y10T29/49391
    • A tube for heat exchangers is a flat tube which either comprises a pair of plane walls which are spaced a predetermined distance from one another, the plane walls respectively having lateral ends integrally connected to each other by a U-shaped bent portion, the plane walls further having other lateral ends which abut against and are tightly secured to one another, or alternatively, the flat tube comprises a pair of preformed plates having abutted and soldered portions at both lateral ends. The tube further comprises one or more curved lugs integral with and protruding inwardly from an inner surface of each plane wall, and the curve lugs respectively have innermost tops so that the innermost tops protruding from one plane wall bear against the inner surface of the other plane wall or against the innermost tops of the other curved lugs protruding from said other plane wall. Th tube is thus of an improved pressure resistance despite its minimized height or thickness, and the manufacturing process of the tube permits the production of tubes at a high productivity and lower manufacturing cost.
    • 用于热交换器的管是扁平管,其包括彼此隔开预定距离的一对平面壁,所述平面壁分别具有通过U形弯曲部分彼此一体地连接的侧壁,所述平面壁 还具有邻接并彼此牢固地固定的其它侧端,或者替代地,扁平管包括一对在两个侧端处具有邻接和焊接部分的预成形板。 该管还包括一个或多个与每个平面壁的内表面成一体且从内表面向内突出的弯曲凸耳,并且弯曲凸耳分别具有最内侧顶部,使得从一个平面壁突出的最内侧的顶部抵靠另一平面的内表面 壁或抵靠从另一个平面壁突出的另一个弯曲凸耳的最内顶部。 因此,尽管管的最小化高度或厚度,但是T形管具有改进的耐压性,并且管的制造过程允许以高生产率和低制造成本生产管。
    • 45. 发明授权
    • Tube for heat exchangers and a method for manufacturing the tube
    • 用于热交换器的管和用于制造管的方法
    • US5386629A
    • 1995-02-07
    • US210749
    • 1994-03-17
    • Wataru OuchiKatsuhisa SuzukiToshinori TokutakeHirosaburo Hirano
    • Wataru OuchiKatsuhisa SuzukiToshinori TokutakeHirosaburo Hirano
    • F28D1/03F28F3/04B23P15/26
    • F28F3/044F28D1/0316F28D1/0391F28F3/04F28F3/042F28D2021/0084F28F2001/027F28F2275/122Y10T29/49373Y10T29/49378Y10T29/49391
    • A tube for heat exchangers is a flat tube which either includes a pair of plane walls which are spaced a predetermined distance from one another, the plane walls respectively having one lateral ends integrally connected to each other by a U-shaped bent portion, the plane walls further having their other lateral ends which abut against to be tightly secured to one another, or alternatively, the flat tube includes as the plane walls a pair of preformed plates having the abutted and soldered portions at both lateral ends. The tube further includes one or more curved lugs integral with and protruding inwardly from an inner surface of each plane wall, and the curved lugs respectively having innermost tops so that the innermost tops protruding from one plane wall bear against the inner surface of the other plane wall or against the innermost tops of the other curved lugs protruding from said other plane wall. The tube is thus of an improved pressure resistance despite its minimized height or thickness, and the manufacturing process of the tube involves no difficulty to produce the tubes at a high productivity and lower manufacturing cost.
    • 用于热交换器的管是扁平管,其包括彼此隔开预定距离的一对平面壁,所述平面壁分别具有通过U形弯曲部分彼此一体地连接的一个侧端,所述平面 另外,壁的另一个侧端部抵接以彼此紧密地固定,或者替代地,扁平管包括作为平面壁的一对预制板,其在两个侧端具有邻接和焊接部分。 管还包括一个或多个与每个平面壁的内表面成一体并从其内表面突出的弯曲凸耳,并且弯曲凸耳分别具有最内侧顶部,使得从一个平面壁突出的最内侧的顶部抵靠另一平面的内表面 壁或抵靠从另一个平面壁突出的另一个弯曲凸耳的最内顶部。 因此,管尽管具有最小化的高度或厚度,但耐压性能得到改善,并且管的制造过程不难以高生产率和低制造成本生产管。