Exhaust mufflers with stamp formed internal components and method of
manufacture
    61.
    发明授权
    Exhaust mufflers with stamp formed internal components and method of manufacture 失效
    带邮票的排气消声器内部组件和制造方法

    公开(公告)号:US5816361A

    公开(公告)日:1998-10-06

    申请号:US932059

    申请日:1997-09-17

    申请人: James E. Gerber

    发明人: James E. Gerber

    摘要: A muffler includes a pair of internal plates that are formed to define an array of channels and at least one chamber. The internal plates are connected in face-to-face relationship such that the channels define tubes that communicate with the chamber. At least one short section of conventional tube may be disposed between the plates to achieve a selected exhaust gas flow pattern. The connected internal plates is slid longitudinally into a tubular outer shell and end caps are secured to opposed ends to substantially enclose the muffler. The internal plates can be remanufactured prior to insertion into the tubular outer shell, and can be slid into tubular external shells of different lengths for significantly altering the acoustical tuning of the muffler.

    摘要翻译: 消音器包括一对内部板,其形成为限定通道阵列和至少一个室。 内部板以面对面的关系连接,使得通道限定与腔连通的管。 常规管的至少一个短段可以设置在板之间以实现选定的废气流动模式。 连接的内部板被纵向滑动到管状外壳中,并且端盖固定到相对的端部以基本上包围消音器。 内部板可以在插入管状外壳之前重新制造,并且可以滑入不同长度的管状外壳中,以显着改变消音器的声学调谐。

    Method of manufacturing tubes for use in a muffler for internal
combustion engines
    62.
    发明授权
    Method of manufacturing tubes for use in a muffler for internal combustion engines 失效
    制造用于内燃机消声器的管的方法

    公开(公告)号:US4719679A

    公开(公告)日:1988-01-19

    申请号:US873491

    申请日:1986-06-12

    申请人: Masuo Fukuda

    发明人: Masuo Fukuda

    摘要: A muffler for use on an internal combustion engine includes an enclosure generally cylindrical and having end plates for closing the internal volume of the enclosure, at least one partition plate for dividing the internal volume of the enclosure into at least two chambers, an inlet tube, supported by one of said end plates and at least one partition plate, for conducting combustion gases supplied from the engine to one of the chambers; an outlet tube, supported by the other of the end plates and at least one partition plate, for blowing out the gases from remaining one of the chambers; and a connecting tube supported by said at least one partition plate for interconnecting the volume of adjacent ones of the chambers. At least two of the inlet, outlet and connecting tubes are integrally made of a single sheet of metal shaped to form a combination tube including the at least two tubes. A method of manufacturing such a combination tube is also provided.

    摘要翻译: 一种用于内燃机的消音器包括一般为圆柱形的外壳,并具有用于封闭外壳的内部容积的端板,至少一个分隔板,用于将外壳的内部容积分成至少两个腔室,入口管, 由所述端板和至少一个隔板中的一个支撑,用于将从发动机供应的燃烧气体引导到所述室中的一个; 出口管,由另一个端板和至少一个分隔板支撑,用于从剩余的一个室中吹出气体; 以及由所述至少一个分隔板支撑的连接管,用于互连相邻腔室的体积。 入口,出口和连接管中的至少两个由一片金属片整体制成,以形成包括至少两个管的组合管。 还提供了一种制造这种组合管的方法。

    Flattened venturi, method and apparatus for making
    63.
    发明授权
    Flattened venturi, method and apparatus for making 失效
    扁平文丘里管,制作方法和装置

    公开(公告)号:US4690245A

    公开(公告)日:1987-09-01

    申请号:US931903

    申请日:1986-11-14

    IPC分类号: F01N1/00 F01N1/08 F01N13/18

    摘要: The invention is a venturi of unusual configuration and a method and apparatus for forming such a venturi in a single operation from a rounded, deformable tube. According to the invention, diametrically opposing sides of the tube are inwardly deflected in increasing amounts from opposing ends of the tube so as to form along the length of the tube from either end a first chamber of increasingly flattened and reduced cross-section followed by a second chamber of decreasingly flattened and reduced cross-section. An elongated throat section of maximally flattened and reduced cross-section may be provided between the first and second chambers, particularly for engine muffler venturis. The tube is conveniently deformed by applying pressure to a pair of its opposing sides along at least a portion of its length, preferably by pairs of opposing dies or eccentric rollers. Venturis for engine mufflers are conveniently fabricated from thin walled steel tubes by cold forming the tubes in the manner described. In cold forming, sidewalls between the flattened walls are typically outwardly bulged as well. The outward bulging may be constrained such that the central throat section has a substantially rectangular cross-sectional shape.

    摘要翻译: 本发明是一种不寻常的结构的文丘里管,以及用于在圆形可变形管的单一操作中形成这种文丘里管的方法和装置。 根据本发明,管的直径相对的侧面以较大的量从管的相对端向内偏转,以便沿着管的长度从任一端形成逐渐变扁平和缩小的横截面的第一腔,随后是 第二个房间逐渐变平且横截面减小。 可以在第一和第二腔室之间设置最大平坦和缩小的横截面的细长的喉部,特别是用于发动机消声器肠腔。 通过沿着其长度的至少一部分施加压力,使管易于变形,优选地由成对的相对的模具或偏心辊施加压力。 用于发动机消声器的Venturis通过以所描述的方式冷成型管方便地由薄壁钢管制成。 在冷成型中,扁平壁之间的侧壁通常也向外凸出。 可以限制向外的凸起,使得中央喉部具有基本上矩形的横截面形状。