Patent ID: 7753286
Filing Date: 2010-07-13
Classification: B05B

Abstract:
1. A device designed to spray an overheated liquid in the form of very fine droplets at a very high speed, the overheated liquid having a temperature To and a pressure Po greater than a saturated vapor pressure Ps corresponding to To, the vapor pressure Ps greater than a pressure P 1 of a gaseous medium in which the liquid is sprayed, comprising a nozzle body fixed on a support and receiving a supply of the overheated liquid, the nozzle body comprising a conduit where the overheated liquid circulates, followed by one or more convergent heads and by one or more injectors where the overheated liquid attains speed to open onto a divergent and speed attainment nozzle where a liquid jet of the overheated liquid partially evaporates and instantaneously explodes under effect of a pressure difference between the liquid and an ambient medium of the divergent nozzle to form a mixture of fine droplets and vapor, wherein a generatrix of the divergent nozzle presents a discontinuity in the form of an angle at an intersection with the one or more injectors, and an exit section of the divergent nozzle is sized such that the mixture is ejected from the divergent nozzle at the pressure P