Device for extinguishing a fire
AssigneePyroalliance
InventorsEric Gibaud, Pierre Humbert, Bertrand Haguenauer, Alexis Huet
Life of this patent
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Abstract
Extinguishing a fire by pressurizing a tank containing an extinguishing liquid. According to the invention, the tank containing the liquid is provided with an expulsion outlet at a front end, a gas generator (17) is installed at a rear end, and a diaphragm forming an inflatable bag (19) is installed inside the tank, being folded prior to triggering in a confinement space at the front of the gas generator, the outlet from the generator being associated with a deflector (47) including a rearwardly-directed ejection passage (49).
Claims18
A device for feeding a fire extinguishing liquid to an expulsion circuit for the fire extinguishing liquid, the device comprising:
- a tank containing the fire extinguishing liquid and provided with an expulsion outlet at a front end thereof;
- a gas generator installed inside the tank at a rear end thereof, the gas generator enclosed in a rigid confinement enclosure fastened to the tank, the gas generator includes a gas outlet;
- a diaphragm installed inside the tank to push back the fire extinguishing liquid towards the expulsion outlet under drive from a gas given off by the gas generator;
- and
- a deflector connected to the rigid confinement enclosure, and arranged between the rigid confinement enclosure and the diaphragm,
- wherein the diaphragm forms an inflatable bag connected in gastight manner to the gas outlet of the gas generator, the opening of the inflatable bag being directly fastened to the outside surface of the rigid confinement enclosure, the deflector being contained in the inflatable bag, the deflector includes an ejection passage for directing the gas given off by the gas generator rearwards of the tank and then to fill the inflatable bag, and the inflatable bag being folded prior to triggering of the gas generator in a confinement space defined by a cover and located inside the tank at a front of the gas generator.
A device for feeding a fire extinguishing liquid to an expulsion circuit for the fire extinguishing liquid, the device comprising:
- a tank containing the fire extinguishing liquid and provided with an expulsion outlet at a front end thereof;
- a gas generator installed inside the tank at a rear end thereof;
- and
- a diaphragm installed inside the tank to push back the fire extinguishing liquid towards the expulsion outlet under drive from the gas given off by the gas generator;
- wherein the diaphragm forms an inflatable bag connected in gastight manner to a gas outlet of the gas generator, the bag being folded prior to triggering of the gas generator in a confinement space defined by a cover and located inside the tank at a front of the gas generator, and wherein the gas outlet is associated with a deflector comprising a generally annular ejection passage that is directed rearwards,
- the tank comprises a generally cylindrical body and fastener means suitable for positioning the body approximately horizontally,
- the gas generator is fastened to a first end wall of the tank in an axial direction relative to the cylindrical body,
- the expulsion outlet is defined in the bottom portion of the body, in the vicinity of an opposite second end wall of the tank, and
- the two compartments in the folded state are held one against the other by a breakable connection extending along a non-closed line and situated essentially in the bottom portion of the tank.
Dependencies are inferred from the claim text.