Low cost, low pressure, feedback passage-free fluidic oscillator

Details Low cost, low pressure, feedback passage-free fluidic oscillator Low cost, low pressure, feedback passage-free fluidic oscillator

1991-10-08

1993-01-26

Kashnikow, Andres

Fluid sprinkling, spraying, and diffusing

Rigid fluid confining distributor

Fluidic oscillator

137811, 137826, B05B 108

Patent

active

051816601

ABSTRACT:
A fluidic oscillator which is free of feedback passages has an oscillation chamber having a length greater than its width, a pair of mutually facing and complimentary-shaped sidewalls and planar top and bottom walls, and first and second end walls. Stabilization ribs are formed on at least one of the top and bottom walls. An input power nozzle is formed in said first end wall having a width W and a depth D, for issuing a stream of fluid into the oscillation chamber, and form alternately pulsating, cavitation-free vortices in said oscillation chamber on each side of the stream. An outlet opening formed in the downstream end wall and axially aligned with the power nozzle and has a width and depth such that internal pressure in the oscillation chamber is greater than ambient. The outlet wall is hingedly connected to a chamber wall and the chamber is such that it can be molded with the outlet wall hingedly connected thereto in one molding.

REFERENCES:
patent: 4151955 (1979-05-01), Stouffer
patent: 4398664 (1983-08-01), Stouffer
patent: 4508267 (1985-04-01), Stouffer
patent: 4562867 (1986-01-01), Stouffer
patent: 4596364 (1986-06-01), Bauer
patent: 4662568 (1987-05-01), Bauer
patent: 4721251 (1988-01-01), Kondo et al.
patent: 5035361 (1991-07-01), Stouffer

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