| 摘要 |
Heating oil filters must prevent the accumulation of air inclusions, have a long service life, a low suction resistance and have a stable design. The design according to the invention having the known felt filter rings (6) bears a filter disc (5, 2) arranged in the filter head (4), the degree of contamination of which filter disc is easily recognisable, keeps a large heating oil volume ready as a result of the filter disc open spaces (10) and (11) and achieves an optimal reinforcement, by the transverse ribs (9), of the longitudinal ribs (16) against the bottom twist grip (13). <IMAGE> |
