| 摘要 |
A filter head (10) and a spin-on fuel filter element (12) where the filter head (10) includes an inlet (16) and an outlet (18). A threaded nipple extends from a base of the filter head and includes a central flow passage (77). A valve member (80) located in the flow passage (77) is normally closed. The valve member (80) includes a threaded portion (85) extending outwardly from nipple (76). The filter element (12) includes upper and lower end caps (96, 97). The filter element (12) is located in a housing (92) having a tap plate (122). The tap plate (122) includes a threaded central opening (124) for screwing the filter element (12) onto the nipple (76). The upper end cap (96) supports a threaded sleeve (18) which is screwed onto the valve member (80). The sleeve/valve member combination has a different thread pitch than the tap plate/nipple combination, which moves the valve member (80) to an open position when the filter element is installed on the filter head.
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