Aerodynamic catalytic converter

A Coanda chamber assembly adapted to be used with a catalytic reaction chamber, comprising:

• an interior housing which defines an interior space, wherein the interior space extends in a longitudinal direction and has varying diameters along the longitudinal direction defining a plurality of sections, including at least a first narrower section and a first wider section immediately downstream of the first narrow section, wherein a lateral dimension of a widest point of the first wider section is 2 to 3 times a lateral dimension of a narrowest point of the first narrower section, the interior housing further including one or more openings located at the narrowest point of the first narrower section or between the narrowest point of the first narrower section and the widest point of the first wider section;
• and
• an exterior housing disposed outside the interior housing, the exterior housing including an air inlet, wherein the exterior housing and the interior housing define an air space between them, and wherein the one or more openings are in fluid communication with the air inlet via the air space.

A catalytic converter comprising:

• a housing;
• and
• a catalytic reactor core disposed inside the catalytic reactor housing, the catalytic reactor core being formed of a reticulated ceramic coated with a catalyst.