SYSTEM AND DEVICE FOR REDUCING FORMATION OF REDUCTANT DEPOSITS IN SYSTEMS FOR ADDITIONAL EXHAUST PURIFICATION Russian patent published in 2018 - IPC F01N3/20 

FIELD: engines and pumps.

SUBSTANCE: invention relates to purification of internal combustion engine exhaust gases. Guiding device is provided at the exhaust gases flow path upstream of the supply port to feed the reducing agent into the exhaust gases stream. Guiding device is made able to direct the flow of exhaust gases towards the opening for the reducing agent and around the guiding device for efficient mixing the exhaust gases stream with the reducing agent supplied through the reducing agent fed through the opening to reduce the formation of the reducing agent deposits. Device comprises a housing limiting a decomposition chamber being in fluid communication with the catalyst carrier chamber. Housing comprises an inlet to the decomposition chamber and an opening to supply the reducing agent downstream of the inlet. Exhaust gases flow guiding device is located at least partially inside the inlet.

EFFECT: system and a device for reducing the formation of reductant deposits in a system for further purification of exhausts are disclosed.

20 cl, 6 dwg