| 摘要 |
A filter element including a winding core (308), a sheet of fluted filter media (110), a relief notch (300), and an adhesive. The winding core has a pair of ends (130, 132) spaced apart from each other and extending laterally between a pair of opposed sides (134, 136). The sheet of fluted filter media (100) is wound around the sides of the winding core (308). The relief notch is formed in one of the sides (134, 136) of the winding core. The adhesive (126) is received at least partially in the relief notch (300) and secures the fluted filter media (100) to the winding core (308). A method of making a filter element with a winding core having relief notches is also disclosed. |
