LABYRINTH FILTER-FAT TRAP FOR EXHAUST HOODS Russian patent published in 2004 - IPC

FIELD: mechanical engineering; air cleaning facilities. SUBSTANCE: proposed labyrinth filter-fat for exhaust contains upper casing and lower casing, one nested in the other and provided with great number of cross slots. Casings include dividing member with great number of cross gaps great number of points of contact with casings. Cross gaps are displaced relative to cross slots to create at least four channels changing direction of air flow inside space encircled by two casings. EFFECT: high efficiency, increased service life, ease of cleaning, no danger of inflammation. 6 cl, 4 dwg