| 摘要 |
A barrier system is disclosed which is fitted to the filler opening (12) of a fuel tank (10). The system comprises an outer sleeve (34) in the form of a coil spring (36) and lining (38) which is of a material that permits fuel to flow through it but which retains water and solid contaminants. A valve (52, 54) is provided at the lower of the sleeve (34) for enabling accumulated water and solid contaminents to be drained from the sleeve (34). |
