| 摘要 |
A filter device 7, 8 for a conduit 9, 10 is provided. The filter device comprises a gas-permeable pre-filter element 21, 23 and a gas-permeable, liquid-impermeable filter element 22, 24. The filter device 7, 8 is configured to be fluidly coupled to a conduit 9, 10 such that a gas can be caused to flow, in sequence, through the pre-filter element 21, 23, the filter element 22, 24 and then the conduit 9, 10. Such a filter device 7, 8 can for example be used in each of a vehicle hollow driveshaft 2 and a hollow wheel stub axle 6 forming a CV joint 11 having a compressed air supply line which passes therethrough, as is the case in some central tyre inflation systems (CTISs). Thus, compressed air can be supplied via said air supply line without the need for an additional fluid transfer device fluidly connecting the driveshaft and the stub axles conduits 9, 10. Reference is also made to an articulated joint. |
