Mixing element

A mixing device for a motor vehicle exhaust system of a combustion engine, the mixing device comprising:

• an exhaust gas-conducting pipe or pipe section;
• and
• a mixing element connected to said exhaust gas-conducting pipe or pipe section, said mixing element comprising four vanes and a connecting section having a longitudinal axis and having two sides, said vanes being angled off said connecting section, wherein:
• the mixing element is produced from a single continuous sheet metal piece;
• two of said four vanes are directly adjacent with respect to the longitudinal axis of said connecting section and are angled off towards different sides of said connecting section;
• two of said four vanes are located directly opposite with respect to the longitudinal axis of said connecting section and are angled off towards different sides of said connecting section;
• said connecting section has a sweep with respect to the longitudinal axis of the mixing element;
• said connecting section comprises a first connecting section portion and a second connecting section portion;
• said sweep is defined by said first connecting section portion and said second connecting section portion;
• said first connecting section portion is integrally connected to said second connecting section portion to define a bent one-piece connecting section;
• said first connecting section portion is bent relative to said second connecting section portion forming a bend axis by a bend in the single continuous sheet metal piece, said bending axis extending transverse to said longitudinal axis;
• and
• the sweep of the connecting section is positive or negative with respect to the main flow direction.

A motor vehicle combustion engine exhaust system comprising:

• an exhaust gas-conducting pipe or pipe section receiving a flow of fluid;
• and
• a mixing element connected to said exhaust gas-conducting pipe or pipe section, said mixing element comprising four vanes and a connecting section having two sides, said vanes being angled off said connecting section, wherein:
• the mixing element is produced from a single continuous sheet metal piece;
• said connecting section comprises a first connecting section portion and a second connecting section portion;
• said first connecting section portion is bent relative to said second connecting section portion forming a bend axis by a bend in the single continuous sheet metal piece, said bending axis intersecting said longitudinal axis.