| 摘要 |
A filtering cartridge contains the cylindrical case, the perforated cover with the circular locking extension and the cylindrical side surface inserted inside the case, and the corrugated element. To increase the sealing and to simplify the design and the manufacturing technology, the locking edge of the cover at its top is made with the recession. The end-face of the case is equipped with the ledge matching the recession of the locking extension of the cover. The fold of the filtering element is clutched between the side surfaces of the case and the cover. |
