Fluidic oscillator having a wide range of flow rates, and a fluid meter including such an oscillator
AssigneeSchlumberger Industries
InventorBao Tuan Huang
Life of this patent
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Abstract
The invention provides a fluidic oscillator which is symmetrical about a longitudinal plane of symmetry (P), the oscillator comprising means for generating an oscillating two-dimensional fluid jet, an obstacle provided in its front portion with a cavity that is swept by the oscillating jet, and a longitudinal element disposed in the empty space situated downstream from said obstacle in such a manner as to partially subdivide said space into two identical zones, and to form between them at least one communication channel for the fluid. The invention also provides a fluid flow meter including such a fluidic oscillator.
Claims15
A fluidic oscillator that is symmetrical about a longitudinal plane of symmetry P, comprising:
- means for generating a two-dimensional fluid jet that oscillates transversely relative to said longitudinal plane of symmetry P;
- and
- means for forming eddies on either side of said jet, and for enabling the fluid to flow towards the downstream end of the fluidic oscillator, said eddies being influenced by the downstream flow of the fluid,
- characterized in that said fluidic oscillator includes means for limiting the influence of the downstream flow of the fluid on the oscillation of the eddies.
Dependencies are inferred from the claim text.