Abstract: A fluid mixer plug has holes formed therethrough such that a remaining portion is closed to fluid flow. The plug's inlet face defines a central circuit region and a ring-shaped region with the ring-shaped region including at least some of the plug's remaining portion so-closed to fluid flow. This remaining portion or closed region at each radius R of the ring shaped region satisfies a radius independent, flow-based relationship. Entry openings are defined in the plug's inlet face in correspondence with the holes. The entry openings define an open flow area at each radius of the ring-shaped region. The open flow area at each such radius satisfies the inverse of the flow-based relationship defining the closed regions of the plug.
Type:
Grant
Filed:
February 25, 2009
Date of Patent:
November 24, 2009
Assignee:
The United States of America as represented by the National Aeronautica and Space Administration
Inventors:
John Dwight England, Anthony R. Kelley, Paul D. Van Buskirk