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    • 8. 发明申请
    • Fluid Pressure Pulsation Damper Mechanism and High-Pressure Fuel Pump Equipped with Fluid Pressure Pulsation Damper Mechanism
    • 流体压力脉动阻尼机构和配有流体压力脉动阻尼机构的高压燃油泵
    • US20080289713A1
    • 2008-11-27
    • US12124084
    • 2008-05-20
    • Akihiro MunakataHideki MachimuraHideaki YamauchiDaisuke KitajimaMasashi Nemoto
    • Akihiro MunakataHideki MachimuraHideaki YamauchiDaisuke KitajimaMasashi Nemoto
    • F16L55/04
    • F02M55/04F02M59/102F02M59/366F02M59/367F02M59/48F02M63/0225F02M2200/315F04B11/0016
    • A fluid pressure pulsation damper mechanism comprising: a metal damper having two metal diaphragms joined together with a hermetic seal for forming a sealed spacing filled with a gas between the two metal diaphragms, an edge part at which are overlapped along outer peripheries thereof; a main body having a damper housing in which the metal damper is accommodated; and a cover attached to the main body to cover the damper housing and isolate the damper housing from an outside air, the metal damper being held between the cover and the main body; wherein the cover is further comprising: a metal plate for making the cover, a peripheral edge of the cover being joined to the main body, a plurality of inner convex curved parts extending toward the main body and a plurality of outer convex curved parts extending in a direction away from the main body, and a plurality of the inner convex curved parts and a plurality of the outer convex parts being disposed alternately inside the peripheral edge of the cover at which the cover is joined to the main body; wherein the cover is attached to the main body, ends of the plurality of inner convex curved parts touch one side of the edge part of the metal damper, which are outwardly formed in radial directions of a part including the sealed spacing in the metal damper; and the metal damper is held between the cover and a metal damper holding part of a holding member placed on the main body.
    • 一种流体压力脉动阻尼机构,包括:具有两个金属隔膜的金属阻尼器,所述金属隔膜具有密封密封,用于在两个金属隔膜之间形成填充有气体的密封间隔,边缘部分沿着其外周重叠; 主体,其具有容纳金属阻尼器的阻尼器壳体; 以及盖,其附接到主体以覆盖阻尼器壳体并将阻尼器壳体与外部空气隔离,金属阻尼器保持在盖和主体之间; 其特征在于,所述盖还包括:用于制造所述盖的金属板,所述盖的周缘连接到所述主体,多个向所述主体延伸的内凸曲面部分,以及多个外凸曲面部分, 远离主体的方向,并且多个内凸曲面部分和多个外凸部交替地设置在盖的周边边缘内,盖与主体接合; 其特征在于,所述盖附接到所述主体,所述多个内凸曲面部的端部接触所述金属阻尼器的边缘部分的一侧,所述金属阻尼器的边缘部分在包括所述金属阻尼器中的所述密封间隔的部分的径向方向上向外形成; 并且金属阻尼器保持在盖和放置在主体上的保持构件的金属阻尼器保持部分之间。