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Spray Nozzle Assembly

IP.com Disclosure Number: IPCOM000187662D
Publication Date: 2009-Sep-14
Document File: 1 page(s) / 22K

Publishing Venue

The IP.com Prior Art Database

Abstract

This disclosure is directed to spray nozzle assemblies and to external mix gas atomizing spray nozzle assemblies and to components thereof.

This text was extracted from a Microsoft Word document.
This is the abbreviated version, containing approximately 65% of the total text.

Spray Nozzle Assembly

This disclosure is directed to spray nozzle assemblies and to external mix gas atomizing spray nozzle assemblies and to components thereof.

Spray nozzle assemblies and external mix atomizing spray nozzle assemblies are able to atomize liquids into fine droplets of controlled liquid particle size and provide spray distribution for thin film coating. A nozzle tip for a spray nozzle assembly can be formed from a material that is inert, has minimal or no porosity, has a high degree of wettability to improve liquid pre-film spreading, and has a high surface energy for improved spray coating process control.

In one aspect, this disclosure provides a spray nozzle assembly including housing and gas cap, the nozzle tip including a liquid passage for communicating with a source of pressurized liquid and having a liquid discharge orifice from which a pressurized liquid stream is discharged. The liquid passage is defined by an outer surface of the nozzle tip and inner liquid contacting surface wherein at least the inner liquid contacting surface includes a high surface energy material, the high surface energy material having a surface energy that is higher than that of the nozzle assembly housing or gas cap.

This disclosure further provides a spray nozzle assembly including a nozzle housing having a central opening, a proximal end and a distal end, a nozzle tip disposed within the central opening of the nozzle...