WASTE GAS CLEANER Russian patent published in 1998 - IPC

FIELD: mechanical engineering; manufacture of internal combustion engines, oil producing and chemical industries. SUBSTANCE: cleaner includes hollow housing with gas supply and discharge branch pipes, several partitions arranged inside housing across gas flow at some distance relative to each other and provided with may passages for flow of gas through each partition; surfaces of passages are coated with catalyst for reducing reaction of nitric oxides and oxidation reaction of carbon monoxide and hydrocarbons. Housing is also provided with ports for free flow of gas past passages in partitions; these ports are shifted relative to each other across flow of gas: each port is located opposite passages of other partition. Area of flow sections of ports is less than total area of flow sections of passages of the same partition by several times and is more than flow section of each passage by at least order. EFFECT: low resistance to flow of gas; enhanced efficiency of cleaning. 6 cl, 5 dwg