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    • 7. 发明申请
    • FLANGE FOR VEHICLE EXHAUST SYSTEM
    • 车辆排气系统法兰
    • US20070137022A1
    • 2007-06-21
    • US11614029
    • 2006-12-20
    • Michael Haller
    • Michael Haller
    • B23P13/04
    • B23P15/00B21K1/16B21K1/76B21K23/04F01N13/1805F01N13/1855Y10T29/49995
    • A flange for a vehicle exhaust system includes a central opening, bolt holes spaced from the central opening, an annular groove spaced from the central opening formed in a first surface of the flange, and an annular protrusion spaced from the central opening formed in a second surface of the flange. The annular groove and the annular protrusion generally have the same configuration taken in a radial cross-section of each. A method of manufacturing a flange for a vehicle exhaust system includes the following steps: forming or cutting a blank part having a desired peripheral configuration; forming or cutting a plurality of bolt holes in the part; piercing a central opening in the part, wherein the central opening is radially inwardly spaced from the bolt holes; displacing metal in a first surface of the part to form an annular groove that is radially spaced from the central opening, wherein the material that is displaced from the annular groove is allowed to protrude from a second surface of the flange to form an annular protrusion.
    • 用于车辆排气系统的凸缘包括中心开口,与中心开口间隔开的螺栓孔,与形成在凸缘的第一表面中的中心开口间隔开的环形槽,以及与中心开口间隔开的环形突起, 法兰表面。 环形槽和环形突起通常具有在每个的径向横截面中采取的相同构造。 制造车辆排气系统的凸缘的方法包括以下步骤:形成或切割具有期望的周边构造的坯件; 在所述部件中形成或切割多个螺栓孔; 在所述部分中刺穿中心开口,其中所述中心开口与所述螺栓孔径向向内间隔开; 在所述部件的第一表面中移动金属以形成与所述中心开口径向隔开的环形槽,其中从所述环形槽移位的材料允许从所述凸缘的第二表面突出以形成环形突起。