Fluidic oscillator and spray-forming output chamber

Details Fluidic oscillator and spray-forming output chamber Fluidic oscillator and spray-forming output chamber

1981-01-22

1990-11-20

Kashnikow, Andres

Fluid sprinkling, spraying, and diffusing

Processes

Of discharge modification of flow varying

7386119, 137816, 137822, 137833, 2395891, 239590, B05B 108, F15B 2112, F15C 108, F15C 122

Patent

active

RE0334480

ABSTRACT:
A fluidic oscillator includes a chamber having a common inflow and outflow opening into which a jet is issued in a generally radial direction. After impinging upon the far chamber wall the jet is redirected to form a vortex on each side of the incoming jet. The vortices alternate in strength and position to direct outflow through the common opening along one side and then the other of the inflowing jet. A spray-forming output chamber is arranged to receive the pulsating outflows from the aforementioned or other fluid oscillator and establish an output vortex which is thereby alternately spun in opposite directions. An outlet opening from the output chamber issues fluid in a sweeping spray pattern determined by the vectorial sum of a first vector, tangential to the output vortex and a function of the spin velocity, and a second vector, directed radially from the vortex and determined by the static pressure in the chamber. By increasing or decreasing the static pressure, or by increasing or decreasing the vortex spin velocity, the angle subtended by the sweeping spray can be controlled over an unusually large range. By properly configuring the oscillator and/or output chamber, concentrations and distribution of fluid in the spray pattern can be readily controlled.

REFERENCES:
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patent: 3209774 (1965-10-01), Manion
patent: 3216439 (1965-11-01), Manion
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patent: 3434487 (1969-03-01), Bauer
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patent: 3613452 (1971-10-01), Zoerb
patent: 3640133 (1972-02-01), Adams
patent: 3707979 (1973-01-01), Zoerb
patent: 3973558 (1976-08-01), Stouffer et al.
patent: 4052002 (1977-10-01), Stouffer et al.
patent: 4151955 (1979-05-01), Stouffer
patent: 4244230 (1981-01-01), Bauer

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