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1. 发明申请

WO1998028059A1 FUEL INTAKE DEVICE FOR FUEL SYSTEMS 审中-公开
标题翻译：用于燃油系统的燃油装置
公开(公告)号：WO1998028059A1
公开(公告)日：1998-07-02
申请号：PCT/US1997022284
申请日：1997-12-04
申请人： SIKORSKY AIRCRAFT CORPORATION
发明人： SIKORSKY AIRCRAFT CORPORATION , BARNARD, Richard, S. , CHASEN, Scott, A.
IPC分类号： B01D35/02
CPC分类号： B01D35/027 , B01D29/114 , B01D29/54 , B01D29/902 , B01D29/925
摘要： A fuel intake device (20) for a fuel system (10) having a fuel tank (14) for containing a supply of fuel (16) and an internal fuel feed line (18) which is disposed internally of the fuel tank (14) and which extends into a sump region (26) thereof. The fuel intake device (20) is characterized by a filter assembly (40) which envelopes an end portion (18E) of the internal fuel feed line (18) and which includes a lower fuel filtering portion (42) and an upper fuel bypass portion (44). The lower fuel filtering portion (42) has a plurality of fine apertures (42O) therein for facilitating a primary flow (PF) of fuel (16) therethrough and for filtering debris from the supply of fuel (16) in a normal operating mode. The upper fuel bypass portion (44) has a plurality of coarse apertures (44O) for facilitating a secondary flow (SF) of fuel therethrough in a bypass operating mode. Furthermore, the filter assembly (40) is situated about the end portion (18E) such that the inlet orifice (18O) thereof is disposed internally of the lower fuel filtering portion (42) and such that the coarse apertures (44O) of the upper bypass portion (44) are distally spaced from the inlet orifice (18O). The fuel intake device is further characterized by a shroud member (50) disposed about the filter assembly (40), which shroud member (50) includes an upper end portion (52) disposed in sealed combination with an external peripheral surface (18p) of the internal fuel feed line (18) and a lower end portion (54) which extends into the sump region (26) of the fuel tank (14). The lower end portion (54), furthermore, defines an opening for facilitating fuel flow to the filter assembly (40).
摘要翻译：一种用于燃料系统（10）的燃料进入装置（20），其具有用于容纳供应燃料的燃料箱（14）和设置在所述燃料箱（14）内部的内部燃料供给管线（18）并且其延伸到其中的贮槽区域（26）中。燃料进入装置（20）的特征在于包围内部燃料供给管线（18）的端部（18E）的过滤器组件（40），其包括下部燃料过滤部分（42）和上部燃料旁路部分（44）。下部燃料过滤部分（42）在其中具有多个细孔（42O），用于促进燃料（16）的主流（PF）通过其中并用于以正常操作模式从燃料供应源16过滤碎屑。上部燃料旁路部分（44）具有多个粗略孔（44O），用于在旁路操作模式中促进燃料的二次流（SF）。此外，过滤器组件40围绕端部部分18E设置成使得其入口孔口18O设置在下部燃料过滤部分42的内部，并且使得上部的上部的粗略孔44O）旁路部分（44）与入口孔（180）远离间隔开。燃料进入装置的特征还在于围绕过滤器组件（40）设置的护罩构件（50），所述护罩构件（50）包括上部端部（52），所述上端部分（52）与外部周边表面（18p）内部燃料供给管线（18）和延伸到燃料箱（14）的集油槽区域（26）中的下端部分（54）。此外，下端部分（54）限定用于促进燃料流向过滤器组件（40）的开口。

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