| 摘要 |
The invention relates to a filter device (10) for fluid, in particular liquid, in particular oil, fuel, water, urea solution, or gas, in particular air, in particular of an internal combustion engine, in particular of a motor vehicle, and to a replaceable filter (14) of the filter device (10). The filter device (10) comprises a filter head (12), which has at least one feed (16) and at least one discharge (18) for the fluid. The filter head (12) has a head-side connecting part (20) of a connecting device (22), which can be closed and detached by means of a plug-in and/or rotary movement with respect to a connecting axis (26), for the replaceable filter (14). The replaceable filter (14) comprises a filter-side connecting part (108) of the connecting device (22), which part can be detachably connected to the head-side connecting part (20). At least one first one of the connecting parts (20) can have at least two first ramp sections (42), which run in a helical manner with respect to the connecting axis (26). The first ramp sections (42) can overlap around at least part of their circumference with respect to the connecting axis (26) in such a manner that the first ramp sections (42) delimit a first helical ramp groove (48) on axially opposite sides with respect to the connecting axis (26). The second connecting part (108) can have at least two second ramp sections (106), which run in a helical manner with respect to the connecting axis (26) and of which at least one is guided at least partially in one of the first ramp grooves (48) in order to close the connecting device (22). The connecting device (22) can have at least one circumferential inner seal (92) with respect to the connecting axis (26), which seal seals off at least axially with respect to the connecting axis (26) between the filter head (12) and the replaceable filter (14) and can separate an untreated side (82) of the replaceable filter (14) from a clean side (78). The connecting device (22) can have at least one circumferential outer seal (128) with respect to the connecting axis (26), which seal seals off at least radially with respect to the connecting axis (26) between the filter head (12) and the replaceable filter (14) and can separate a fluid-conducting space (30) of the filter device (10) from the environment (132). The at least one outer seal (128) can be separate from the connecting points (20, 108). |
