| 摘要 |
A filter structure for fuel fluids, comprising a first filter wall, a coalescing second filter wall located downstream of and in contact with the first filter wall, and a hydrophobic wall, in which the first filter wall comprises a first porous layer, realised in a material having a receding contact angle Trec comprised between 30° and 80°; the coalescing second filter wall comprises a second porous layer made of a material having a greater porosity than the first filter wall; the hydrophobic third wall comprises a layer located at a distance from the second layer. |
