Patent ID: 7422360

Claim:
A device for mixing fluids, comprising: structure including two circular openings having substantially the same diameter, the circular openings being spaced-apart and coaxial with each other; a fixed cylindrical shaft coaxially positioned through the circular openings to form two fixed annular openings spaced-apart along a length of the cylindrical shaft, the annular openings configured to create two hollow cylindrical fluid jets flowing directly toward one another along a lateral external surface of the cylindrical shaft when fluids are flowed through each annular opening in a direction toward a center of the cylindrical shaft; and a mixing chamber in fluid communication with the two annular openings, the mixing chamber surrounding at least the length of the cylindrical shaft spaced between the two annular openings, for enclosing the two hollow cylindrical fluid jets and a radial stream flowing outward from the lateral external surface of the cylindrical shaft that results from impingement of the two hollow cylindrical fluid jets flowing directly toward one another.