FIELD: filtration.
SUBSTANCE: invention relates to assembled filters applied in gas purifiers, for example, air purifiers installed in vehicles or other equipment. The air filter cartridge for detachable installation in the body of an air purifier comprises a filter packing with a first and a second ends, a first end part with a through hole for flow passage, located at the first end of the packing and equipped with a radially directed body sealing element with a non-circular section, a second end part located at the second end of the filter packing. The first end of the filter packing defines the first outer circumference of the packing at the point of junction of the first end part. The second end of the filter packing defines the second outer circumference of the packing at the point of junction of the second end part. The first and second outer circumferences of the packing are located eccentrically relative to each other. A second element of the resistive tool can be provided on the second end part for engaging with the body, facing radially inward, and the first radial sealing of the body and the second element of the resistive tool are located eccentrically relative to each other. The filter packing defines the border of the filter packing adjoining the second end part. The first radially directed sealing of the body and the border of the filter packing at the point of junction with the second end part can be located eccentrically relative to each other. The sealing of the body may have a first sealing element cast together therewith, defining the sealing surface of a non-circular profile, containing at least three radially protruding sections alternating with at least three recesses to define radially directed curvilinear protrusions equidistant from each other on the sealing surface. The cartridge can be equipped with a receiver protrusion on the second end part, entering the inner space of the cartridge and characterised by an outer surface whereon a central axial protrusion is provided, extending to the side from the first end part.
EFFECT: provided correct location, orientation, and attachment in the working position of a correctly selected cartridge, ensured proper sealing of the connection of the cartridge with the body.
79 cl, 117 dwg
