FIELD: separation.
SUBSTANCE: invention is intended for air purification. Air filter cartridge comprises a material pack having an outer perimeter and opposite flow surfaces, element for engagement with housing enveloping material package and comprising sealing structure including compressible sealing part and sealing support part, and element of protective structure, which prevents air cleaner casing sealing, located in element for engagement with housing. Element for engagement with the body contains a pocket structure containing at least one receiving pocket. At least one receiving pocket is a closed inner pocket. Compressible sealing part has outer perimeter and opposite surfaces. At least one receiving pocket is located in radial direction inward relative to outer perimeter of compressible sealing part. At least one receiving pocket extends further towards one of flow surfaces than adjoining parts of each of opposed surfaces of compressible sealing part. Air cleaning unit includes an opened cleaner housing, which forms an inner part, and an air filter cartridge.
EFFECT: technical result is prevention of inadvertent installation in assembly of improper cartridge, which does not provide proper sealing.
63 cl, 69 dwg
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