Fuel filter with an integrated pressure regulating valve
    1.
    发明授权
    Fuel filter with an integrated pressure regulating valve 失效
    带集成调压阀的燃油滤清器

    公开(公告)号:US5989413A

    公开(公告)日:1999-11-23

    申请号:US981281

    申请日:1997-12-29

    IPC分类号: B01D27/10 F02M37/22 B01D29/88

    摘要: A fuel filter with a pressure regulating valve for fuel circulated from a fuel tank and injected into an internal combustion engine. The fuel filter comprises a filter pot closed by a cover and an annular filter element for radially filtering flow from the outside in. Fuel flows in and out through main flow connections on opposite sides of the filter. There is a recirculation connection to recirculate fuel. There is a pressure regulating valve on one end of the filter housing with the discharge connection. The pressure regulating valve operates against atmospheric pressure and has a spring-loaded diaphragm which acts in conjunction with a closure ram to close the inlet port of a recirculation flow duct which passes through the center of the filter and connects the regulating valve to the return connection. The diaphragm is fastened with the valve seat in a sealed manner to the edge of the pressure regulator housing, which open into the filter port and is formed in the cover of the filter housing. The return connection passes in a radially sealed manner through the center of an associated end disk of the filter element. The feed connection and the return connection are provided in a second end of the filter and the pressure regulating valve is connected to the return connection via a plug-in connection.

    摘要翻译: PCT No.PCT / DE96 / 01064 Sec。 371 1997年12月29日第 102(e)1997年12月29日PCT PCT 1996年6月11日PCT公布。 出版物WO97 / 01705 日期1997年1月16日一种燃料过滤器,具有用于从燃料箱循环并注入内燃机的燃料的压力调节阀。 燃料过滤器包括由盖封闭的过滤罐和用于径向过滤从外部流出的环形过滤器元件。燃料通过过滤器相对侧上的主流动连接流入和流出。 有一个再循环连接以再循环燃料。 在过滤器外壳的一端有一个压力调节阀,带有排放连接。 压力调节阀抵抗大气压力运行,并且具有弹簧加载的隔膜,其与闭合柱塞结合起来,以封闭通过过滤器中心的再循环流动管道的入口,并将调节阀连接到返回连接 。 隔膜与阀座以密封的方式紧固到压力调节器外壳的边缘,压力调节器外壳开口进入过滤器端口并形成在过滤器外壳的盖中。 返回连接通过径向密封的方式通过过滤元件的相关联的端盘的中心。 进料连接件和回流连接件设置在过滤器的第二端,压力调节阀通过插入式连接件连接到回流连接件。