Patent ID: 8376247
Filing Date: 2013-02-19
Classification: A62C,B05B

Abstract:
1. A nozzle for producing a spray of liquid, the spray having a core of larger liquid droplets and the core being surrounded by smaller liquid droplets, wherein the nozzle has an axis, the nozzle having at least one first channel for carrying liquid which produces the core of larger liquid droplets, and at least one second channel for carrying liquid which produces the smaller liquid droplets, wherein the first channel has a greater depth in the radial direction than the second channel, and wherein each channel is curved about the axis and extends simultaneously angularly around the axis and in an axial direction toward an outlet end of the nozzle, wherein the nozzle has an inlet end and an outlet end, there being a plurality of second channels, the second channels opening into an annular space concentric with the axis, the annular space extending in an axial direction towards the outlet end of the nozzle from the second channels to an outlet of the annular space, the annular space lying between and being defined by a radially outer surface and a radially inner surface, and wherein each of the radially outer and radially inner surfaces lies closer to the axis in a radial direction at the outlet of the annular space than at the outlets of the second channels.