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    • 4. 发明授权
    • Integrated fuel pump and fuel filter with fuel-water separation
    • 集成燃油泵和燃油滤清器与燃油分离
    • US06361684B1
    • 2002-03-26
    • US09567922
    • 2000-05-10
    • Charles W. HawkinsIsmail BagciZemin Jiang
    • Charles W. HawkinsIsmail BagciZemin Jiang
    • B01D1712
    • F02M37/22B01D35/18B01D35/26B01D36/006F02M37/08F02M37/221F02M37/223F02M2037/225
    • A fuel filter assembly for the filtering of a flow of fuel includes an outer shell defining a hollow interior and, at a first end, a fuel inlet passageway, a fuel outlet passageway, and a water collection region. The outer shell has a second end which is open and constructed and arranged to be closed by a removable lid. Installed within the hollow interior of the outer shell is a fuel filter cartridge which includes a filter element constructed and arranged for water separation. The filter element defines an interior space into which a fuel transfer pump is installed and which is operable to push fuel through the filter element. Included as part of the fuel filter assembly is a filter detector control circuit including a normally-open filter detector switch which is electrically and operably coupled to the fuel transfer pump. A plunger on the filter detector switch must be depressed in order to close the circuit and enable operation of the fuel transfer pump. The plunger is depressed only upon the installation of the fuel filter cartridge, thereby preventing the delivery of fuel to a downstream location unless a fuel filter cartridge is properly installed. Also included as part of the fuel filter assembly is a fuel heater, a temperature sensor, a drain valve, and a diagnostic port.
    • 用于过滤燃料流的燃料过滤器组件包括限定中空内部的外壳,并且在第一端处具有燃料入口通道,燃料出口通道和收水区域。 外壳具有第二端,该第二端开放并构造并布置成由可移除的盖封闭。 安装在外壳的中空内部的是燃料过滤器滤芯,其包括构造和布置用于水分离的过滤元件。 过滤元件限定内部空间,燃料输送泵安装在该内部空间中,并且其可操作以将燃料推动通过过滤元件。 包括作为燃料过滤器组件的一部分的过滤器检测器控制电路包括常开的过滤器检测器开关,其电和可操作地耦合到燃料输送泵。 必须按下滤波器检测开关上的柱塞才能关闭电路并使燃料输送泵工作。 仅当安装燃料过滤器滤芯时,柱塞被压下,从而防止将燃料输送到下游位置,除非燃料过滤器滤芯正确安装。 还包括作为燃料过滤器组件的一部分的是燃料加热器,温度传感器,排水阀和诊断端口。