Mixing and/or evaporating device

An exhaust system for a combustion engine of a motor vehicle, the system comprising:

• a flow structure defining a flow path for an exhaust gas flow;
• a SCR catalytic converter operatively connected to said flow structure for flow through by at least a portion of the exhaust gas flow;
• a reduction agent feeding device comprising at least one injector for feeding a reduction agent to the exhaust gas flow, the injector being disposed upstream of said SCR catalytic converter;
• and
• a mixing and/or evaporating device comprising a support body enclosing a cross section running transversely to a mixing and/or evaporating device axial direction, the mixing and/or evaporating device comprising two long side walls located opposite each other and two short side walls located opposite each other, said two short side walls each connecting said two long side walls to each other and a plurality of guide blades arranged on one of said long side walls at least on one axial end thereof, each of said plurality of guide blades extending away from said one of said long side walls in a direction of another of said long side walls and said plurality of guide blades being angled relative to the mixing and/or evaporating device axial direction, each of said plurality of guide glades comprising a fluid engaging surface, said fluid engaging surface extending from a position at or adjacent to said one of said long side walls to a position located at a spaced location from said another of said long side walls, said fluid engaging surface of one of said plurality of guide blades being located opposite said fluid engaging surface of another one of said plurality of guide blades with respect to said mixing and/or evaporating device axial direction, the mixing and/or evaporating device being arranged in the flow path between said injector and said SCR catalytic converter.

A combustion engine exhaust system mixing and/or evaporating device comprising a support body enclosing a volume, said support body comprising:

• a first long side wall and having a first axial end at a first side of said volume and having a second axial end at a second side of said volume;
• a second long side wall located opposite to said first long side wall and having a first axial end at a first side of said volume and having a second axial end at a second side of said volume;
• a first short side wall connecting said first long side wall to said second long side wall;
• a second short side wall connecting said first long side wall to said second long side wall;
• and
• a plurality of guide blades directly connected to said first long side wall at said first axial end and extending in a direction away from said first long side wall toward said second long side wall, each of said plurality of guide blades being angled relative to an axial direction of the device, each of said plurality of guide blades having a fluid engaging surface, said fluid engaging surface being angled relative to the axial direction of the device, said fluid engaging surface extending from a first position to a second position, said first position being located at or adjacent to said first long side wall, said second position being located at a spaced location from said second long side wall, wherein said fluid engaging surface of one of said plurality of guide blades is located opposite another one of said guide blades with respect to the axial direction of the device.