Device for generating a jet of two-phase fluid
AssigneeEtat Francais/Brigade De Sapeurs Pompiers De Paris
InventorsFabian Testa, Thomas Issler
Life of this patent
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Abstract
A device for generating a jet of two-phase fluid, comprising a nozzle having a main duct that is fed with a pressurized gaseous fluid and opens into a mixing chamber, and at least one secondary duct that is fed by at least one pressurized fluid and opens into the mixing chamber in a direction forming a non-zero angle with the axis of the main duct. The mixing chamber has a convergent-divergent cylindrical wall having a constriction defining an opening in the plane perpendicular to the axis of the main duct. The convergent part of the wall has a frustoconical region in the continuation of the axis of the at least one secondary duct so as to form a fragmentation chamber for the liquid phase.
Claims11
A device for generating a jet of two-phase fluid, comprising:
- a nozzle having a main duct supplied with a pressurized gaseous fluid and opening into a mixing chamber, and a plurality of secondary ducts that are distributed at a periphery of the main duct, the secondary ducts converging toward the mixing chamber and supplied with at least one pressurized liquid fluid and opening into the mixing chamber in a direction forming a non-zero angle with an axis of the main duct, wherein:
- the mixing chamber has a convergent-divergent cylindrical wall having a constriction defining a discal opening in a plane perpendicular to the axis of the main duct;
- and
- the convergent part of the cylindrical wall has a frustoconical region intersecting an extension of axes of the secondary ducts so as to form a fragmentation chamber for the liquid fluid.
Dependencies are inferred from the claim text.