Patent ID: 6634432
Filing Date: 2003-10-21
Classification: A62C

Abstract:
In an installation for extinguishing fire in a unit, the improvements comprising:a total number of spray heads (3, 3â€², 3â€³, 3â€²â€³) whereof a number that is smaller than the total number of spray heads can be activated spray head/heads according to a location of the fire in the unit, and a drive source (5, 5â€², 5â€³, 5â€²â€³) for delivering a flow of extinguishing medium through a pipe system (4, 4â€², 4â€³, 4â€²â€³) to the activated spray head/heads, wherein the drive source comprises a pump unit including a pump or pumps (50, 50â€², 50â€³, 50â€²â€³) and an engine (51, 51â€², 51â€³, 51â€²â€³) in order to provide by an effect of the pump unit a pumping pressure for pumping extinguishing medium into the activated spray head/heads, and a control unit (52, 53, 53â€², 53â€³, 53â€²â€³) arranged to increase the extinguishing medium flow of the pump unit when the number of the activated spray head/heads increases in such a way that the effect of the pump unit is at least mainly kept constant.