Nozzle for a spray device
AssigneeUnilever Home & Personal Care USA, Division of Conopco, Inc.
InventorsSusan Michelle Kutay, Gregory Alan Erickson
Life of this patent
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Abstract
A nozzle for a spray device comprising a mixing chamber (3) for a first fluid and a second fluid, said mixing chamber (3) having an exit orifice (24), an inlet feed (8) from an inner tubular passage (4) suitable for carrying the first fluid, and an inlet feed (5I) from an annular passage (5) surrounding the inner tubular passage (4) and suitable for carrying the second fluid, characterised in that the nozzle comprises a means for causing spiral flow around the inner tubular passage (4) of a fluid passing through the surrounding annular passage (5).
Claims19
A nozzle for a spray device comprising a mixing chamber (3) for a first fluid and a second fluid, said mixing chamber (3) having an exit orifice (24), an inlet feed (8) from an inner tubular passage (4) suitable for carrying the first fluid, and an inlet feed (5I) from an annular passage (5) surrounding the inner tubular passage (4) and suitable for carrying the second fluid, characterised in that the nozzle comprises a means for causing spiral flow around the inner tubular passage (4) of a fluid passing through the surrounding annular passage (5), wherein the annular passage (5) is suitable for carrying liquid to the mixing chamber (3), the inner tubular passage (4) is suitable for carrying gas towards the mixing chamber (3), and the inlet feed (8) from the inner tubular passage (4) is suitable for injecting gas into a liquid film formed in mixing chamber (3).
A nozzle for a spray device comprising a mixing chamber (3) for a first fluid and a second fluid, said mixing chamber (3) having an exit orifice (24), an inlet feed (8) from an inner tubular passage (4) suitable for carrying the first fluid, and an inlet feed (5I) from an annular passage (5) surrounding the inner tubular passage (4) and suitable for carrying the second fluid, characterized in that the nozzle comprises a means for causing spiral flow around the inner tubular passage (4) of a fluid passing through the surrounding annular passage (5), and wherein the nozzle further comprises a swirl chamber fed by an air-liquid mixture coming out of the exit orifice (24) of the mixing chamber (3) and has from two to six tangential feeder slots leading to a central circular chamber having a discharge orifice located in its centre.
Dependencies are inferred from the claim text.