Spray nozzle with static means for inhibiting outflow

Details Spray nozzle with static means for inhibiting outflow Spray nozzle with static means for inhibiting outflow

B - Operations, Transporting

05

B

B05B 1/34 (2006.01) B05B 15/02 (2006.01)

Patent

CA 2315908

The invention concerns a spray nozzle comprising a central swirl chamber (1) wherein the fluid to be sprayed penetrates by tangential channels (7) producing a swirl axis perpendicular to the longitudinal axis (I-I). The fluid comes out of the swirl chamber (1) through a coaxial outlet passage (4). The nozzle comprises a rear coaxial recess (8) dimensioned and shaped so as to inhibit any residual outflow of fluid through the coaxial outlet passage (4) when the fluid supply is interrupted at the spray nozzle inlet (6).

La buse de pulvérisation selon l'invention comprend une chambre centrale de tourbillonnement (1) dans laquelle le fluide à pulvériser pénètre par des canaux tangentiels (7) produisant un tourbillon d'axe perpendiculaire à l'axe longitudinal (I-I). Le fluide sort de la chambre de tourbillonnement (1) par un passage coaxial de sortie (4). La buse comprend un évidement postérieur coaxial (8) dimensionné et conformé de façon à inhiber tout écoulement résiduel de fluide par le passage coaxial de sortie (4) dès l'interruption d'alimentation en fluide à l'entrée (6) de la buse de pulvérisation.

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