Fluidic oscillator and a flow meter including such an oscillator

Details Fluidic oscillator and a flow meter including such an oscillator Fluidic oscillator and a flow meter including such an oscillator

1992-07-14

1994-11-15

Goldstein, Herbert

Measuring and testing

Volume or rate of flow

By measuring vibrations or acoustic energy

137826, 137842, G01F 120, F15C 122

Patent

active

053637046

ABSTRACT:
A fluidic oscillator and a flow meter including such a fluidic oscillator comprising a fluid inlet suitable for forming a two-dimensional jet: an obstacle possessing a front portion in the form of a chamber facing the inlet on the path of the jet, said chamber including two walls that are symmetrical about a longitudinal plane of symmetry passing through said inlet, the walls meeting said plane; and means for increasing the pressure on each of the lateral flanks of the obstacle in the vicinity of the front portion in alternation and in a relationship with the oscillation of the jet between the walls of the chamber.

REFERENCES:
patent: 4244230 (1981-01-01), Bauer
patent: 4854176 (1989-08-01), Okabayashi
patent: 4976155 (1990-12-01), Challandes

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