Fluid sprinkling – spraying – and diffusing – Combining of separately supplied fluids
Reexamination Certificate
2007-12-25
2007-12-25
Hwu, Davis (Department: 3752)
Fluid sprinkling, spraying, and diffusing
Combining of separately supplied fluids
C239S419000, C239S419500, C239S427000, C239S427300, C239S428500
Reexamination Certificate
active
11020891
ABSTRACT:
An eductor for mixing liquids and solid particles includes a nozzle, an initial mixing chamber, a first diffuser, an intermediate mixing chamber and a second diffuser. The nozzle includes a semicircular nozzle outlet that is offset from a centrally-located first axis. Motive flow is accelerated through the nozzle through a first and second acceleration segment. Solid particles are added to the motive flow in the initial mixing chamber and directed to the first diffuser. Each diffuser includes an acceleration and a deceleration segment separated by an elliptically-shaped throat. The intermediate mixing chamber is located between the first and second diffusers. A method for mixing liquids and solids includes introducing a motive flow into an initial mixing chamber, creating a vacuum in the initial mixing chamber to induce solids into the motive fluid, providing a region of turbulence to enhance mixing of the motive flow and solid particles, and diffusing the motive flow to further increase boundary flow separation conducive to mixing.
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Hwu Davis
M-I L.L.C.
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