Fluidic oscillator and a flow meter including such an oscillator
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United States of America Patent
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Nov 15, 1994
Grant Date -
N/A
app pub date -
Jul 14, 1992
filing date -
Jul 9, 1991
priority date (Note) -
Expired
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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.
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