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    • 2. 发明授权
    • Inlet orifice for a fuel pressure damper
    • 用于燃油压力调节器的进气口
    • US07870871B1
    • 2011-01-18
    • US12711286
    • 2010-02-24
    • Mahesh Nagesh HanjagiRodney CrispenDavid Humblot
    • Mahesh Nagesh HanjagiRodney CrispenDavid Humblot
    • F16L55/04
    • F16L55/043F01N2610/1446F02M37/0041F02M55/04F02M69/462F02M2200/31F02M2200/315F16L55/05
    • A fuel pressure damper (10′) includes a housing (15) defining an inlet (46) constructed and arranged to receive fuel. An orifice disc (54) is provided at the inlet and includes at least one orifice (58). A cover (22) is coupled to the housing. A flexible diaphragm (12) has a periphery fixedly secured to at least the housing or the cover and has a freely movable central portion (36). A compression spring (14) biases the diaphragm to a normal position. In an operating position, the central portion of the diaphragm alone, or in combination with the spring, is constructed and arranged to dampen fuel pressure pulsations at the inlet. The orifice is constructed and arranged to ensure that pressure pulsations of a certain magnitude are prevented from entering the damper and damaging the diaphragm.
    • 燃料压力阻尼器(10')包括限定入口(46)的壳体(15),所述入口构造和布置成接收燃料。 孔口54设置在入口处并包括至少一个孔口58。 盖(22)联接到壳体。 柔性隔膜(12)具有固定在至少壳体或盖上并具有可自由移动的中心部分(36)的周边。 压缩弹簧(14)将隔膜偏压到正常位置。 在操作位置,单独的隔膜的中心部分或与弹簧组合,构造和布置成阻止入口处的燃料压力脉动。 孔口被构造和布置以确保防止一定幅度的压力脉动进入阻尼器并损坏膜片。