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

1992-01-07

1993-05-25

Kashnikow, Andres

Fluid sprinkling, spraying, and diffusing

Rigid fluid confining distributor

Fluidic oscillator

239DIG3, 137826, B05B 108

Patent

active

052132692

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 complementary-shaped sidewalls, planar top and bottom walls, and first and second end 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 interconnect passage or channel proximate the downstream end wall enlarges the sweep angle and improves periodicity of the oscillations. 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 and forms one side of the interconnect passage or channel.

REFERENCES:
patent: 4151955 (1979-05-01), Stouffer
patent: 4260106 (1981-04-01), Bauer
patent: 4398664 (1983-08-01), Stouffer
patent: 4508267 (1985-04-01), Stouffer
patent: 4562867 (1986-01-01), Stouffer
patent: 4662568 (1987-05-01), Bauer
patent: 4721251 (1988-01-01), Kondo et al.
patent: 4838091 (1989-06-01), Markland et al.

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