Patent ID: 8061890

Claim:
A static mixer comprising a fluid-conducting means defining a fluid passage having an inlet opening for at least two components having a first cross-section of one of a circular and a polygonal cross-sectional shape in a plane disposed substantially normal to the main direction of flow in said inlet opening and an outlet opening for a mixture of the two components having a second cross-section of one of a circular and a polygonal cross-sectional shape in a plane disposed substantially normal to the main direction of flow in said outlet opening and larger than said first cross-section; and a mixing element in said fluid-conducting means extending completely across said fluid passage and having a plurality of flow-dividing layers comprising openly crossing flow channels extending therethrough and defining a cross-sectional development increasing substantially continuously from said first cross-section to said second cross-section and wherein said flow passages of one of said layers are disposed in crossing relation to said flow passages of an adjacent one of said layers.