CARBAMIDE MIXER Russian patent published in 2020 - IPC B01F3/04 B01F5/04 B01F5/06 

FIELD: chemistry.

SUBSTANCE: invention relates to methods and systems of carbamide mixer. Mixer comprises a concave plate located inside the exhaust passage with an opening connecting the exhaust passage with the auxiliary channel having the carbamide injector, wherein the auxiliary channel is fluidly connected to the hollow ring physically connected to the exhaust channel outer surface, wherein the hollow ring is located upstream of the concave plate with respect to the engine exhaust gas input flow direction, wherein the hollow ring is fluidly connected to the exhaust passage through a plurality of perforations arranged along the circumference of the exhaust passage, the auxiliary conduit being formed by a J-shaped pipe comprising a first pipe, a second pipe and a third pipe, wherein diameter of auxiliary channel is less than diameter of exhaust channel, and wherein first pipe is located inside exhaust passage and is physically connected to concave plate, and part of second pipe is located in exhaust channel, wherein the carbamide injector is located at the intersection of the third pipe with the second pipe outside the exhaust channel, wherein the third pipe is completely located outside from the exhaust channel and is physically connected to the downstream surface of the hollow ring.

EFFECT: invention provides improved mixing.

18 cl, 4 dwg