| 摘要 |
PCT No. PCT/FI95/00216 Sec. 371 Date Sep. 18, 1996 Sec. 102(e) Date Sep. 18, 1996 PCT Filed Apr. 13, 1995 PCT Pub. No. WO95/28205 PCT Pub. Date Oct. 26, 1995A fire fighting system has a liquid source, a pump connected to the liquid source having an outlet line with spray heads for providing a high liquid pressure and a comparatively small flow, and a gas source of propellant gas connected by way of a line to the outlet line for mixing gas with the liquid into a flow of an extinguishing fluid delivered to the spray heads. The gas source is connected to the outlet line of the pump for producing a finely divided liquid mist, an initial charge pressure of the gas source being at least as high as the high liquid pressure provided by the pump. At least one liquid tank is between the gas source and the outlet line. Liquid from the liquid tank is arranged to be driven out into the outlet line by the propellant gas from the gas source, an initial charge pressure of the gas source and a volume of the liquid tank being adapted to one another so that when the liquid tank has been emptied of the liquid a pressure of the gas source is at least substantially the same as the high liquid pressure of the pump.
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