| 摘要 |
The invention relates to an intake-air filter for internal-combustion engines, compressors and other machines which take in air, in which the filter cartridge is connected in a sealing manner to the clean-air tube by means of a central screw. The filter housing and the clean-air tube consist of plastic, the clean-air tube and the contact surface for the filter cartridge being reinforced by a moulded-in sheet-metal sleeve with integrated collar. The sheet-metal sleeve contains a cross-piece, which serves for receiving the central screw, and the integrated collar serves as contact surface for the filter cartridge. As a result, the forces occurring during the screwing of the filter cartridge can be substantially absorbed by the sheet-metal reinforcement and deformation of the plastic is avoided to a great extent.
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