A spray device (100) for spraying a liquid (L), the device comprises a tank (10) containing the liquid (L) for spraying, at least one liquid ejector member (20) in communication with said tank (10), and a pyrotechnic gas generator (30) for pressurizing the liquid inside said tank and propelling it under pressure out from said tank. According to the invention, in at least one mode of operation, the ejector member (20) is in communication with the gas generator (30) in such a manner as to enable it to be fed with the gas generated by said generator (30).

Fire suppression apparatuses include a housing with gas generant material disposed therein, an initiator for igniting the gas generant material, and a cooling system. The cooling system includes a first chamber with a coolant material disposed therein and a second chamber. The coolant material is caused to flow from the first chamber into the second chamber to cool gas formed by the ignition of the gas generant material upon exiting from the housing under pressure. The cooling system may further include a piston disposed within the first chamber and movable responsive to gas pressure. Methods for cooling a fire suppressant gas and methods for suppressing a fire include flowing a fire suppressant gas into first and second chambers of a cooling system, flowing a coolant material from the first chamber into the second chamber, and contacting the fire suppressant gas with the coolant material to cool the fire suppressant gas.

Fire suppression apparatuses include a housing with gas generant material disposed therein, an initiator for igniting the gas generant material, and a cooling system. The cooling system includes a first chamber with a coolant material disposed therein and a second chamber. The coolant material is caused to flow from the first chamber into the second chamber to cool gas formed by the ignition of the gas generant material upon exiting from the housing under pressure. The cooling system may further include a piston disposed within the first chamber and movable responsive to gas pressure. Methods for cooling a fire suppressant gas and methods for suppressing a fire include flowing a fire suppressant gas into first and second chambers of a cooling system, flowing a coolant material from the first chamber into the second chamber, and contacting the fire suppressant gas with the coolant material to cool the fire suppressant gas.

The present compact powder fire-extinguishing device comprises a container containing a fire-extinguishing powder, said container being in the form of a single-use cartridge (1) containing a fire-extinguishing powder (3), said cartridge being separable from the fire-fighting device by means of a reusable fast-action firing device (4), wherein the fire-extinguishing powder (3) is disposed inside of a casing (2) of the cartridge (1) in a polymer tube (5), one end (6) of which is fastened at an outlet of the casing (2) of the cartridge (1), about the periphery of said casing, and the second end of the tube (5) abuts a sleeve (7) and is configured as a piston (8) having an aperture (9). Within the casing (2) of the cartridge (1) are provided means that generate a propulsive charge and are configured as a striker-type igniter-percussion cap (15) and a pyrotechnic gas generator (16) disposed one after the other, said gas generator being connected to the cavity of the sleeve (7), and the other end of the cartridge (1) is provided with a contoured surface (18) and is connected to the firing device (4) that comprises a mechanism for fastening and discharging the cartridge. Furthermore, the firing device (4) is provided with a striker trigger mechanism that comprises a head (30), a flat striking spring (32) having a striker (33), a hammer (38) connected to a trigger (41), and a safety catch (46).

The present compact powder fire-extinguishing device comprises a container containing a fire-extinguishing powder, said container being in the form of a single-use cartridge (1) containing a fire-extinguishing powder (3), said cartridge being separable from the fire-fighting device by means of a reusable fast-action firing device (4), wherein the fire-extinguishing powder (3) is disposed inside of a casing (2) of the cartridge (1) in a polymer tube (5), one end (6) of which is fastened at an outlet of the casing (2) of the cartridge (1), about the periphery of said casing, and the second end of the tube (5) abuts a sleeve (7) and is configured as a piston (8) having an aperture (9). Within the casing (2) of the cartridge (1) are provided means that generate a propulsive charge and are configured as a striker-type igniter-percussion cap (15) and a pyrotechnic gas generator (16) disposed one after the other, said gas generator being connected to the cavity of the sleeve (7), and the other end of the cartridge (1) is provided with a contoured surface (18) and is connected to the firing device (4) that comprises a mechanism for fastening and discharging the cartridge. Furthermore, the firing device (4) is provided with a striker trigger mechanism that comprises a head (30), a flat striking spring (32) having a striker (33), a hammer (38) connected to a trigger (41), and a safety catch (46).