Patent ID: 6390203
Filing Date: 2002-05-21
Classification: A62C,B05B,B05C

Abstract:
A fire suppression apparatus comprising:a supply of fire suppressing gas comprising a bottle containing a fire suppressing gas and a nitrogen generator; a water supply; a pneumoacoustic atomizer connected to the supply of fire suppressing gas and to the water supply, the pneumoacoustic atomizer operable to generate a mist of water droplets of a predetermined size range in a flow of fire suppressing gas when supplied with fire suppressing gas and water from by the supply of fire suppressing gas and the water supply respectively; a means for controlling the supply of fire suppressing gas and water to the pneumoacoustic atomizer in response to the presence of a fire; and a connection between the nitrogen generator and the bottle for re-filling the bottle with nitrogen during periods when fire suppressing gas is not being supplied from the bottle to the pneumoacoustic atomizer, the connection between the nitrogen generator and the bottle comprising a three-way valve connected to an inlet of the pneumoacoustic atomizer, to an outlet of the nitrogen generator, and to the bottle.