MODULAR FILTERING ELEMENTS IN CARTRIDGE WITH FILTER IN FILTER Russian patent published in 2015 - IPC B01D27/06 

FIELD: process engineering.

SUBSTANCE: invention relates to filtration. Filtering cartridge comprises outer filtering element including corrugated filtering material. The Katter features, in fact, cylindrical shape and includes thermoplastic composite. End covers are secured to opposite ends of outer corrugated filtering material. Inner filtering element comprises outer non-corrugated filtering element. Note here that this outer non-corrugated filtering element features, in fact, the cylindrical shape. Inner corrugated filtering element stays in direct or indirect contact with said outer non-corrugated filtering element. Not here that inner filtering corrugated material has, in fact, cylindrical shape and thermoplastic composite and end walls secured to opposite ends of outer non-corrugated filtering materials and inner corrugated filtering material.

EFFECT: higher efficiency.

25 cl, 12 dwg, 2 tbl