Supersonic fluid dispersing injector

Details Supersonic fluid dispersing injector Supersonic fluid dispersing injector

1994-11-30

1997-06-17

Weldon, Kevin

Fluid sprinkling, spraying, and diffusing

With means for fluctuating flow or pressure of fluid...

B05B 108

Patent

active

056390220

ABSTRACT:
A fluid disperser is provided for dispersing a first fluid into a moving eam of a second fluid. After the first fluid is pressurized to at least twice the pressure of the second fluid, the first fluid is passed through a throat that increases the flow velocity of the first fluid to supersonic. A fluidic oscillator, coupled to the output of the throat, has a central axis of symmetry, a first end by which the first fluid enters the oscillator and a second end by which the first fluid exits the oscillator. The oscillator includes two opposing walls that diverge symmetrically about the central axis from the first to the second end at an angle of divergence relative to the central axis that causes the first fluid entering the first end to attach to either of the two opposing walls and continue therealong to the second end. The oscillator further includes feedback loops for feeding back a portion of the first fluid exiting the second end that is attached to either of the two opposing walls to the first end so that the first fluid will detach from one of the two opposing walls and attach to the other of the two opposing walls. First and second diverging nozzles, coupled to the second end of the oscillator, direct a remainder of the first fluid exiting the second end into the second fluid. specifically, each of the first and second diverging nozzles diverge symmetrically about and away from the central axis at approximately the angle of divergence. The first and second diverging nozzles terminate in a spaced apart relationship in the second fluid.

REFERENCES:
patent: 3423026 (1969-01-01), Carpenter
patent: 3507275 (1970-04-01), Walker
patent: 3628726 (1971-12-01), Johnson

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