A - Human Necessities – 62 – C
Patent
A - Human Necessities
62
C
A62C 31/02 (2006.01) A62C 35/02 (2006.01)
Patent
CA 2231709
The invention relates to a drive source for a fire fighting apparatus comprising spray heads, the drive source comprising a hydraulic accumulator, which comprises a container with extinguishing liquid and a pressure gas source for driving the extinguishing liquid out of the container via a channel to the spray heads. To prevent icing of extinguishing liquid in the container and to make the droplet size small, the drive source is characterized in that the container comprises in its lower part an outlet for conducting extinguishing liquid via the channel out to the spray heads of the fire fighting apparatus, and the container is connected to a liquid container having a rising tube in such a way that the rising tube is arranged to conduct extinguishing liquid to a place in the channel, whereby the resistance to a liquid flow via the rising tube has been made stronger than the resistance of the channel to the liquid flow, and that the liquid container is connected via a conduit to the pressure gas source in order to obtain gas pressure from the pressure gas source, whereby a nonreturn valve is arranged in the conduit to prevent liquid from flowing from the liquid container to the pressure gas source.
Kirby Eades Gale Baker
Marioff Corporation Oy
Sundholm Goran
LandOfFree
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