Spraying method and nozzle for atomization of a liquid
US8991721B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 8, 2009 |
| Grant date | Mar 31, 2015 |
| Priority date | — |
| Expiry date | Nov 23, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B7/0475
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method for atomizing a liquid (L) in a spraying nozzle (1), wherein a gaseous phase (G) and a liquid (L) are fed to a mixing chamber (30) inside a nozzle (1), obtaining an emulsion of the gas in the liquid, the emulsion being under pressure inside the chamber and formed by gas bubbles enveloped by the liquid in a film state. The speed of the gaseous phase at the inlet of the mixing chamber is around the speed of sound or greater. The atomized liquid is obtained by an expansion of the emulsion at the outlet of the chamber. A suitable nozzle (1) is also disclosed, comprising a mixing chamber (30) and a distribution device (D) adapted to provide appropriate gas and liquid feed to form an emulsion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.