An adding system for fire-extinguishing units includes a motor, which can be driven by an extinguishing agent stream, an adding pump, which can be driven by the motor, an adding line, and an extinguishing agent additive line. The outer wall of the working chamber of the motor is in the form of a rotation motor, which can also have the shape of a logarithmic spiral. Furthermore, the wall of the drainage housing of the motor, which is in the form of a rotation motor, can have a through-slot for letting the extinguishing agent in and/or out. Moreover, the inlet of the adding pump can be arranged such that the extinguishing agent additive can flow into the adding pump substantially parallel to the movement direction of the pistons of the adding pump. Finally, the adding pump can have an integrated relief valve.

An adding system for fire-extinguishing units includes a motor, which can be driven by an extinguishing agent stream, an adding pump, which can be driven by the motor, an adding line, and an extinguishing agent additive line. The outer wall of the working chamber of the motor is in the form of a rotation motor, which can also have the shape of a logarithmic spiral. Furthermore, the wall of the drainage housing of the motor, which is in the form of a rotation motor, can have a through-slot for letting the extinguishing agent in and/or out. Moreover, the inlet of the adding pump can be arranged such that the extinguishing agent additive can flow into the adding pump substantially parallel to the movement direction of the pistons of the adding pump. Finally, the adding pump can have an integrated relief valve.

An adding system for fire-extinguishing units includes a motor, which can be driven by an extinguishing agent stream, an adding pump, which can be driven by the motor, an adding line, and an extinguishing agent additive line. The outer wall of the working chamber of the motor is in the form of a rotation motor, which can also have the shape of a logarithmic spiral. Furthermore, the wall of the drainage housing of the motor, which is in the form of a rotation motor, can have a through-slot for letting the extinguishing agent in and/or out. Moreover, the inlet of the adding pump can be arranged such that the extinguishing agent additive can flow into the adding pump substantially parallel to the movement direction of the pistons of the adding pump. Finally, the adding pump can have an integrated relief valve.

The installed fire fighting apparatus has one or more forwarding pipelines to transfer a fire extinguishing substance composition to a place of use, and one or more spreading devices connected to the output end of the forwarding pipeline, serving for directed discharge of the fire extinguishing substance composition and designed to be fixed to a flammable object. The apparatus includes a storage pipeline to store the fire fighting substance composition, comprising a pipeline with a cross-section exceeding the cross-section of the forwarding pipeline and closed at its ends or closed into itself like a loop, where the storage pipeline is equipped with a feeder pipe end with a pressure-tight shut-off device, a valve on the feeder pipe end, as well as a device to measure pressure in the interior space of the storage pipeline and a safety fitting, preferably a safety valve. The storage pipeline has a forwarding branch-off, to which branch-off the forwarding pipeline is connected by its input end. The forwarding pipeline has a flow control valve inserted both beside the branch-off location and at a distance therefrom, and a pressure release branch-off is fitted between the two flow control valves, where such pressure release branch-off is equipped with a shut-off valve. There is a fire extinguishing substance composition filled in the storage pipeline, which is a mixture of a fire fighting substance and a pressurized gas. The apparatus is fitted with at least two individual fire sensors designed to be located at various places of the flammable object and capable to distinguish fires according to extinguishing output demand.

A firefighting composition for use in onboard firefighting systems of heavy industrial equipment, such as heavy vehicles and other types of heavy equipment used in construction, forestry, mining, and other similar industries, includes aqueous liquids that include (a) a sodium and/or potassium salt of an organic acid; (b) one or more of an alkylpolyglycoside surfactant, an alkyl sulfate anionic surfactant, an alkyliminodialkylcarboxylate surfactant and a zwitterionic surfactant; (c) an acetylenic diol derivative surfactant and/or a siloxane-based surfactant; and (d) alkylene glycol and/or glycerol.

A method of fighting a fire includes aerating a firefighting foam composition to form an areated firefighting foam; administering the aerated firefighting foam to a fire or applying the aerated firefighting foam to a surface of a volatile flammable liquid; wherein: the firefighting foam composition includes a sugar component comprising at least about 50 wt. % of a monosaccharide, sugar alcohol, or a mixture of any two or more thereof; a surfactant component comprising an anionic surfactant and a zwitterionic surfactant; and a suspension agent comprising microfibrillated cellulose.

A method of fighting a fire, the method includes aerating a firefighting foam composition to form an aerated firefighting foam; administering the aerated firefighting foam to a fire or applying the aerated firefighting foam to a surface of a volatile flammable liquid; wherein: the firefighting foam composition includes a sugar component comprising a monosaccharide sugar, a sugar alcohol, or a combination thereof; a polysaccharide thickener; a surfactant component comprising an anionic surfactant, a zwitterionic surfactant or a mixture of any two or more thereof; a water-miscible organic solvent; and at least about 30 wt. % water.

A fire extinguishing agent may include a foam and at least one inert gas combined with the foam. A method of extinguishing a fire including a burning metal and/or a burning metal compound and also including a burning plastic material and/or a burning paper material may include combining a foam and at least one inert gas to form a fire extinguishing agent, and applying the fire extinguishing agent to the fire.

An aqueous fluorine-free, fire-fighting composition including a sugar component, an anionic surfactant, a zwitterionic surfactant, water-miscible organic solvent, and a nonionic surfactant, is provided.

Techniques are directed to provisioning a vehicular robot with foam concentrate. Such techniques involve mounting a foam concentrate tank assembly to the vehicular robot. The assembly includes: (i) a set of metal partitions defining a chamber to hold foam concentrate, (ii) a set of baffles disposed within the chamber and coupled with the set of metal partitions, and (iii) a set of mounting members external to the chamber and coupled with the set of metal partitions, the set of mounting members being constructed and arranged to be secured to the vehicular robot.

Such techniques further involve connecting the assembly to a nozzle of the vehicular robot. The nozzle is constructed and arranged to spray foam concentrate from the foam assembly and water onto a target area. Such techniques further involve filling at least a portion of the chamber defined by the set of metal partitions with foam concentrate.