FIELD: filter materials used in waste gas neutralization and purification systems of internal combustion engines working under conditions of high thermal and dynamic loads.
SUBSTANCE: proposed heat-resistant laminated filter element consists of multi-layer fibrous material which is at least partially permeable for fluid media. Filter material has one filtering section and at least one end section. Thickness of at least one end section differs from thickness of at least one filtering section (it is lesser). Edge section contains compacted or thickened fibrous non-woven material. Specification describes filter and method of its manufacture.
EFFECT: highest efficiency of cleaning.
21 cl, 8 dwg
