| 摘要 |
A liquid filter mainly intended for oil or fuel in internal combustion engines, in which the filter comprises a replaceable filter cartridge (17). The filter cartridge is housed in a housing having an essentially central symmetry comprising a housing base and a cover which is designed to be screwed on. In order to avoid leakage residual liquid when the filter housing is opened, especially if the liquid filter is mounted horizontally, a drain screw (22) is actuated before the housing is opened, and in order to achieve the highest possible degree of drainage, the drain screw is moved to the lowest possible position by rotating a threaded member (11) by at most 360°. Upon rotation of the threaded member, a sealing ring (13) ensures tightness in the base (10) of the housing in an area "a". After all the liquid has drained out of the housing through the drain opening (23), the filter housing can then be opened to enable replacement of the filter cartridge without danger of leakage.
|
