GAS CLEANER Russian patent published in 2013 - IPC B04B1/08 B04B7/14 

FIELD: process engineering.

SUBSTANCE: invention relates to filtration. Gas cleaner comprises inner chamber and rotor assy to swirl the fluid mix. Said rotor assy is arranged inside said casing to revolve about its axis relative to casing wall. Note here that rotor assy comprises first mix intake pipe, first mix discharge pipe and first flow passage for communication between said first inlet and said first outlet. Note also that said first outlet is located more radially in outer direction from said axis that said first inlet. Casing arranged nearby rotor assy and rotor assy are separated to form first area there between on casing first side. Said first side confines first flow passage. Casing element is separated from the casing to form second area there between on casing element second side. Said second side defines the second flow passage. Note that rotor assy comprises second inlet open to said second area at said second casing side, second outlet located more radially in outer direction from said axis than second inlet, and second flow passage for communication between second inlet and second outlet.

EFFECT: higher efficiency of separation.