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    • 51. 发明授权
    • Fuel sender unit
    • 燃油箱单元
    • US4694857A
    • 1987-09-22
    • US846080
    • 1986-03-31
    • Robert S. Harris
    • Robert S. Harris
    • F02M37/08F02M37/10F04B39/12
    • F02M37/106F02M2037/082Y10T137/86091Y10T137/86212
    • A fuel sender unit is provided for delivering fuel from a conventional fuel tank that may have a resilient bottom wall of the type that deflects under a fuel load. The fuel sender unit includes a support fixture mounted on the fuel tank, a sending unit within the fuel tank for pumping fuel in the fuel tank toward a point of use outside the fuel tank, and an extension apparatus for coupling the sending means to the support fixture for relative movement therebetween. The extension apparatus includes a plurality of fluid-conducting telescoping guide tube assemblies. The sending unit includes a pump and a reservoir cup for accumulating an auxiliary supply of fuel within the fuel tank to maintain a substantially uninterrupted supply of fuel to the pump. The sending unit is lowerable to a variety of depths within the fuel tank to reach and pump fuel accumulating in various regions along the bottom fuel tank wall notwithstanding sagging deformation of said bottom wall. The extension apparatus is automatically adjustable using fuel pressure generated by the fuel pump and yieldably biases the pump and reservoir cup assembly against the bottom wall of a fuel tank during fuel pumping activity to maximize recovery of fuel from the fuel tank.
    • 燃料传感器单元被提供用于从常规燃料箱输送燃料,该燃料箱可具有在燃料负载下偏转的类型的弹性底壁。 燃料发送器单元包括安装在燃料箱上的支撑夹具,燃料箱内的发送单元,用于将燃料箱中的燃料朝向燃料箱外部的使用点抽吸;以及扩展装置,用于将发送装置耦合到支撑 夹具用于相对移动。 延伸装置包括多个导液伸缩导管组件。 发送单元包括泵和用于在燃料箱内积累辅助燃料供应的储存杯,以维持基本上不间断地向泵供应燃料。 发送单元可以在燃料箱内的各种深度下降到达并泵送沿着底部燃料箱壁积存在各个区域中的燃料,尽管所述底壁的下垂变形。 扩展装置可以使用燃料泵产生的燃料压力自动调节,并且在燃料泵送活动期间可靠地将泵和储存杯组件偏置在燃料箱的底壁上,以使来自燃料箱的燃料的回收最大化。