Catalyst carrier configuration for installation close to an engine

A structural unit, comprising:

• at least two catalyst carrier configurations, each including a housing having a wall with an outer wall surface and a catalyst carrier body disposed in said housing, said catalyst carrier body defining an axial direction and having partition walls defining a plurality of passages separated from one another by said partition walls and extending substantially in the axial direction;
• and
• a common flange surrounding said catalyst carrier body of each of said at least two catalyst carrier configurations and extending substantially radially outwards, said common flange having at least one section extending at least partially through said outer wall surface and into said wall of each of said at least two catalyst carrier configurations and being configured to be disposed between a cylinder head and a manifold of an internal combustion engine.

An exhaust system for an internal combustion engine, comprising:

• an exhaust system component defining at least one exhaust flow path;
• and
• a catalyst carrier configuration including a housing having a wall with an outer wall surface, at least one catalyst carrier body disposed in said housing and provided at least partly in said at least one exhaust flow path, said at least one catalyst carrier body defining an axial direction and having partition walls defining a plurality of passages separated from one another by said partition walls and extending substantially in the axial direction, and at least one flange surrounding at least said at least one catalyst carrier body and extending substantially radially outwards from said wall, said at least one flange having at least one section extending at least partially through said outer wall surface and into said wall and being configured to be disposed between a cylinder head and a manifold of an internal combustion engine.

An exhaust system for an internal combustion engine, comprising:

• an exhaust system component defining exhaust flow paths;
• and
• a structural unit including at least two catalyst carrier configurations, each including a housing having a wall with an outer wall surface and a catalyst carrier body disposed in said housing and provided at least partly in a respective one of said exhaust flow paths, said catalyst carrier body defining an axial direction and having partition walls defining a plurality of passages separated from one another by said partition walls and extending substantially in the axial direction, and a common flange surrounding said catalyst carrier body of each of said at least two catalyst carrier configurations and extending substantially radially outwards, said common flange having at least one section extending at least partially through said outer wall surface and into said wall of each of said at least two catalyst carrier configurations and being configured to be disposed between a cylinder head and a manifold of an internal combustion engine.