Fuel pump for a fuel system of an internal combustion engine
    9.
    发明授权
    Fuel pump for a fuel system of an internal combustion engine 有权
    用于内燃机燃料系统的燃油泵

    公开(公告)号:US07654249B2

    公开(公告)日:2010-02-02

    申请号:US12186645

    申请日:2008-08-06

    摘要: The invention relates to a fuel pump for a fuel system of an internal combustion engine, having a housing and a housing cap joined to the housing. In order to create a fuel pump which in its operation generates little airborne sound, structure-borne sound (vibration amplitudes) and pulsations in a low-pressure region of the fuel pump, it is proposed that the housing cap has at least one damping element, which is embodied as a sandwich construction having at least a first cover layer, a second cover layer, and a damping connection layer disposed between them. The damping connection layer has a markedly higher elasticity and/or higher material damping than the two cover layers, which may be constructed of sheet metal or the housing cap itself.

    摘要翻译: 本发明涉及一种用于内燃机的燃料系统的燃料泵,其具有壳体和连接到壳体的壳体盖。 为了产生一种在其操作中在燃料泵的低压区域产生少量空气声,结构声音(振幅)和脉动)的燃料泵,提出了壳体盖具有至少一个阻尼元件 ,其被实施为具有至少第一覆盖层,第二覆盖层和布置在它们之间的阻尼连接层的夹层结构。 阻尼连接层具有比可以由金属板或壳体本身构成的两个覆盖层明显更高的弹性和/或更高的材料阻尼。