초록 ▼

A fuel filter assembly (10) has a head portion (12) and an element portion (14) enclosing a replaceable cartridge (18). The assembly has a first inlet port (22) which accepts fuel from a tank (90) and filters it by passage through a screen (43) supported on a tube (36). The fuel that has been filter

A fuel filter assembly (10) has a head portion (12) and an element portion (14) enclosing a replaceable cartridge (18). The assembly has a first inlet port (22) which accepts fuel from a tank (90) and filters it by passage through a screen (43) supported on a tube (36). The fuel that has been filtered by passage through the screen is delivered from the assembly through a first outlet port (24) for delivery to a lift pump (96). Fuel from the lift pump is returned to the fuel filter assembly through a second inlet port (26). The fuel is finely filtered by passage through a loop of filter media (60). Clean fuel is delivered from a second outlet port (28) to an engine (104). Contaminants separated from the fuel by passage through the screen and the media loop are collected in first-and second sump areas (78), (80) of the filter housing respectively. An alternative embodiment (110) includes a prefilter screen (158) integral with a replaceable cartridge (118).

대표청구항 ▼

[ I claim:] [1.]1. A fluid filter element comprising first and second end caps, an imperforate tubular wall extending between and sealed at opposite ends thereof respectively to said first and second end caps, and a loop of filter media having axial ends thereof affixed to said end caps, said media

[ I claim:] [1.]1. A fluid filter element comprising first and second end caps, an imperforate tubular wall extending between and sealed at opposite ends thereof respectively to said first and second end caps, and a loop of filter media having axial ends thereof affixed to said end caps, said media loop surrounding said tubular wall and spaced radially therefrom to form therebetween an outflow area, said outflow area being in communication with an outlet passage provided in one of said end caps radially intermediate a pair of axially outwardly facing annular seals provided on said one end cap for sealing against a filter head, and said one end cap having a central opening radially inwardly of said annular seals and communicating with an interior space of said tubular wall.