Patent ID: 8636232
Filing Date: 2014-01-28
Classification: A62C,B05B

Abstract:
1. A method for spraying a medium mist from a nozzle to an outside environment for fire suppression to the outside environment, wherein the medium comprises least two sprays of which a first spray is formed within a second spray at least at or near a spraying point, the method comprising: imparting a swirling motion to the first spray, wherein the first spray comprises a liquid composition; imparting another swirling motion to the second spray, wherein the second spray comprise the liquid composition and wherein the swirling motion imparted to the first and the second spray is imparted before a first discharge opening and a second discharge opening for the first spray and the second spray, respectively, of the nozzle used to form the first spray and the second spray, wherein swirling directions imparted to the first spray and the second spray are opposite to each other, whereby a homogeneous mist spray spread over a large area is achieved to provide the fire suppression to the outside environment; and ejecting the first spray to the outside environment via the first discharge opening of a first nozzle chamber and ejecting the second spray to the outside environment via the second discharge opening of a second nozzle chamber, wherein the second discharge opening comprises a ring-like shape and surrounds a first opening of the first discharge opening, wherein the medium is fed into the first, the second, and a third nozzle chamber of the nozzle forming each spray in such a way that a swirling motion of the medium is set up before the first opening of the first discharge opening.