Proventia Oy

Proventia Emission Control Oy

Juha Karhu

Tuomas Tyni

Sauli Halonen

Jukka Kurikka

Arno Amberla

Aulis Vakkilainen

Markku Sipilä

Pertti Sipilä

Markku Hakkarainen

Ilkka Kuusiniva

Jari Lotvonen

Jaakko Kurikka

Toni Tikkinen

A mixer arrangement for aftertreatment of exhaust gas including a housing configured to form a cavity including a center flow channel in which the exhaust gas flows; and at least one side inlet arrangement configured to allow the exhaust gas to enter the center flow channel from the sides thereof and configured to cause an advancing center flow in the center flow channel and a rotating flow around or on the edges of the center flow in the center flow channel; wherein the at least one side inlet arrangement contains at least a pair of side inlet pipes on the side of the center flow channel.

Mixer arrangement and a method of mixing for after-treatment of exhaust gas

An apparatus for aftertreatment of exhaust gas including a housing having a longitudinal axis that extends between a first end and a second end of the housing; an exhaust inlet being positioned at a portion of the first end of the housing for entering exhaust gas flow into the interior of the housing; a first substrate being positioned within the interior of the housing downstream to the exhaust inlet, wherein the exhaust gas flow being configured to flow through the first substrate in direction of the longitudinal axis; mixer arrangement being positioned within the interior of the housing downstream to the first substrate and including: first flow guide arrangement configured to guide the exhaust gas flow to rotating and advancing gas flow in direction of a crosswise axis perpendicular to the longitudinal axis; a reactant inlet for dispensing reactant to the rotating and advancing gas flow, the reactant configured to mix with the exhaust gas; and second flow guide arrangement configured to guide the rotating and advancing mixed gas flow in direction of the longitudinal axis as a mixed exhaust gas flow; and a second substrate being positioned within the interior of the housing downstream to the mixer arrangement, wherein the mixed exhaust gas flow being configured to flow through the second substrate in direction of the longitudinal axis.

Method, apparatus and system for aftertreatment of exhaust gas comprising inline housing

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Oulu, Finland

Juha Karhu