FIELD: technological processes.
SUBSTANCE: cartridge of the filter includes a packing and a radial seal of the housing including the first radially oriented sealing surface defining a non-circular configuration comprising of at least three radially outwardly projecting segments alternating with at least three segments directed radially inward which define a plurality of equidistant radially projecting protrusions alternating with recesses on the sealing surface, in the direction around and relative to the center of the cartridge end piece, on which the radial seal of the housing is located. The filter cartridge of the second embodiment comprises of a packing, the first end piece, mounted on the packing, and a housing seal located on the first end piece. The housing seal includes the first seal directed radially outwards, which comprises of the first sealing surface and the second seal, also directed radially outwards, that includes the second sealing surface. The first sealing surface comprises of at least a portion spaced from the second sealing surface by at least 10 mm in the radial direction. The filter cartridge of the third embodiment includes a packing with the first end and the second end, the first end piece including a locally moulded segment located at the first end of the packing, a seal support structure built into the first end piece. The seal support structure includes the first support ring integrated in the first end piece at a location adjacent to and distanced from the first sealing surface, the first sealing surface that is smaller than the outer circumference of the packing at the first end. The first end piece has the first and second radial sealing surfaces. The filter cartridge of the fourth embodiment comprises of a once-through structure including a packing having the first inlet end and an opposite outlet end, with the packing comprising of a corrugated material fastened to a substrate, a radial seal of the housing disposed at the first end of the packing and surrounding the central flow opening. The radial seal of the housing comprises of a radially directed sealing surface of the housing extending around the central hole and having a portion comprising of at least two convex segments, projecting radially and outwards relative to the hole and at least one concave segment, directed radially inwards and located between at least two convex segments projecting radially outwards. The assembled filter includes a housing provided with an inlet and an outlet for a gas flow and including a body and a process cover and a filter cartridge mounted in the housing in a ready-for-use and removable state.
EFFECT: easy assembly, good sealing effect.
30 cl, 111 dwg
