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1. WO2001072396 - FILTRE POUR CARBURANT DE MOTEUR DIESEL

Note: Texte fondé sur des processus automatiques de reconnaissance optique de caractères. Seule la version PDF a une valeur juridique

[ EN ]

CLAIMS
1. A filter for Diesel engine fuel, comprising a filtering mass (5,31) which is contained within an enclosure (2), said mass (5,31) being designed to be crossed by the fuel in its path inside the filter between an intake connector (3,30) and a discharge connector (4,32), said enclosure comprising a water collection chamber (7,34) at the bottom, characterized in that it comprises at least two micromeshes (8,10,13,14,18,19,21,22,24,25,27,28) which are adapted to be crossed sequentially by the fuel that exits from the filtering mass (5,31).
2. The filter according to claim 1, characterized in that it comprises a first micromesh (8), which is adapted to be crossed by the fuel that exits from the filtering mass (5) and is located proximate to the surface (5a) of said mass (5), and a second micromesh (10), which is adapted to be crossed by the fuel that exits from the first micromesh (8) and is located proximate to said first micromesh (8).
3. The filter according to claim 1, characterized in that it comprises a first micromesh (13), which is adapted to be crossed by the fuel that exits from the filtering mass (5) and adheres to said mass, and a second micromesh (14), which is adapted to be crossed by the fuel that exits from the first micromesh (13) and is located proximate to said first micromesh (13).
4. The filter according to one or more of the preceding claims, comprising a fuel intake connector (3) which is located proximate to the enclosure (2), with discharge through a connector (4) located in the central region, characterized in that the second micromesh (10,14,19,22,25) located inside the filtering mass is at least partially provided with a bottom (10a,14a,19a,22a,25a).
5. The filter according to claim 4, characterized in that the bottom (10a,14a,19a,22a,25a) of the second micromesh (10,14,19,22,25) is made of micromesh.
6. The filter according to claim 4, characterized in that the bottom (14a) of the second micromesh (14) is provided with a blind surface.
7. The filter according to one or more of the preceding claims, comprising a fuel intake connector (3) which is located proximate to the enclosure (2), with discharge through a connector (4) located in the central region, characterized in that the second micromesh (10) located inside the filtering mass (5) is bottomless.
8. The filter according to one or more of the preceding claims, comprising a reinforcement sleeve (16) which is adjacent to the internal surface (5a) of the filtering mass (5), characterized in that the first micromesh (18) is located proximate to said sleeve (16).
9. The filter according to one or more of the preceding claims, comprising a reinforcement sleeve (16) which is adjacent to the internal surface (5a) of the filtering mass (5), characterized in that the first micromesh (21) is arranged so as to adhere to said sleeve (16) on the inner part of said sleeve (16).
10. The filter according to one or more of the preceding claims, comprising a reinforcement sleeve (16) which is adjacent to the internal surface (5a) of the filtering mass (5), characterized in that the first micromesh (24) is interposed between the sleeve (16) and the filtering mass (5).
11. The filter according to one or more of the preceding claims, characterized in that the first micromesh (27) is provided, at its lower end, with a perforated bottom (27a) for connection to the second micromesh (28).

12. The filter according to one or more of the preceding claims, characterized in that the first micromesh (27) located proximate to the filtering mass (5) has, at its lower end, a perforated bottom (27a) for connection to said filtering mass (5).
13. The filter according to one or more of the preceding claims, characterized in that the first (18,21) and second (19,22) micromeshes are joinable in a monolithic unit.