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    • 2. 发明授权
    • Exhaust muffler
    • 排气消声器
    • US5907135A
    • 1999-05-25
    • US878829
    • 1997-06-20
    • Masaaki HayakawaHiroshi MitsuyoshiYasuo Masuda
    • Masaaki HayakawaHiroshi MitsuyoshiYasuo Masuda
    • F01N1/02F01N1/04F01N1/08F01N1/10F01N13/18F01N7/18
    • F01N13/1872F01N1/02F01N1/04F01N1/08F01N1/10F01N13/1838F01N13/1888F01N2450/22F01N2470/06F01N2490/155F01N2510/08F01N2530/04
    • An exhaust muffler comprising an outer cylindrical body, front and rear end plates mounted on each end of the outer cylindrical body, porous plates fitted on the insides of the outer cylindrical body and each of the end plates, and partition plates for dividing the internal space of the outer cylindrical body into several chambers, wherein when joining the component parts with each other, three or four component parts are superposed via their joint portions each on the other and integrally joined by laser beam welding so as to obtain a reduction of welding steps and minimize the thermal influence in the manufacturing process while ensuring an air-tight condition of the partitioned chambers. When an exhaust pipe and tail pipe are connected to the end plates, respectively, they are laser beam welded to the end plates in a superposed fashion. Alternatively, the outer cylindrical body is formed in a multiple-layered construction with inner and outer panels which are so formed integral with each other as to squeeze or press inwardly, when assembling, an internally installed unit over its fill periphery, thereby not requiring particular measures for fixedly securing the internally installed unit to the outer cylindrical body. Preferably the outer cylindrical body and end plates are formed on an aluminum-plated or a stainless steel plate, thereby dispensing with a coating after welding.
    • 一种排气消音器,包括外筒体,安装在外圆柱体的每一端上的前端板和后端板,安装在外筒体和每个端板的内侧的多孔板,以及用于分隔内部空间的隔板 的外筒体,其中当将部件彼此接合时,通过它们的接合部分将三个或四个部件彼此重叠并且通过激光束焊接一体地接合,以获得焊接步骤的减少 并且在确保分隔室的气密状态的同时最小化制造过程中的热影响。 当排气管和尾管分别连接到端板时,它们以重叠的方式被激光束焊接到端板上。 或者,外圆柱体形成为多层结构,其中内板和外板彼此一体地形成为一体,以便在组装时挤压或向内挤压内部安装的单元在其填充周边上,从而不需要特别的 用于将内部安装的单元固定地固定到外部圆柱体的措施。 优选地,外圆筒体和端板形成在镀铝或不锈钢板上,从而在焊接之后分配涂层。
    • 4. 发明授权
    • Method of manufacturing annular body
    • 制造环形体的方法
    • US07318279B2
    • 2008-01-15
    • US10511494
    • 2003-04-11
    • Hiroshi MitsuyoshiYasuo Masuda
    • Hiroshi MitsuyoshiYasuo Masuda
    • B21K1/38
    • B21D53/30Y10T29/49524Y10T29/49531
    • A rolled steel plate 1 wound in a roll shape is unrolled and is cut in given dimensions to form a blank 2. In this case, a cut surface 2a is caused to incline at 1 to 3 degrees relative to the thickness direction of the blank 2, wherein the inclination direction of the cut surfaces 2a, 2a on each side is reversed. The blank 2 cut in this manner is roll-formed to cause the cut surfaces 2a, 2a to confront each other. Since the cut surfaces 2a, 2a on each side incline at 1 to 3 degrees in the opposite direction as described above, the cut surfaces 2a, 2a are caused to be parallel. Then, the confronting sections are laser-welded to form a cylindrical body 3.
    • 卷绕成卷状的轧制钢板1展开,在规定尺寸下切断,形成坯料2。 在这种情况下,使切割面2a相对于坯料2的厚度方向以1〜3度倾斜,其中每侧的切割面2a,2a的倾斜方向相反。 以这种方式切割的坯料2被卷成形成以使切割面2a,2a彼此面对。 由于每侧的切割面2a,2a在与上述相反的方向上以1〜3度倾斜,所以切割面2a,2a成为平行。 然后,将相对的部分激光焊接以形成圆筒体3。