The document relates to a method for limiting the spread of a wildfire, comprising: defining a fire limiting boundary (4); positioning a plurality of droplet generating units (1) along the fire limiting boundary (4); connecting said droplet generating units (1) to a liquid source (3); and activating said droplet generating units (1) so that a mist is applied to a border area (41) along said fire limiting boundary (4), said border area (41) having a width, as seen in a direction across the fire limiting boundary, which is 20-200 m, preferably 50-150 m, wherein said actuation of said droplet generating units (1) being initiated before the wildfire (5) is at least 500 m, preferably at least 1000 m, at least 2000 m, at least 5000 m, or at least 10,000 meters, from fire limiting boundary (4). Each droplet generating unit (1) provides a mist throw length (L) of 20-200 m, preferably 20-30 m, 30-40 m, 40-50 m, 50-60 m, 60-70 m, 70-80 m, 80-90 m, 90-100 m, 100-120 m, 120-140 m, 140-160 m or 160-180 m, and each droplet generator (10) operates in an angled position relative to the frame (11) at an angle of 10-60 degrees seen to a horizontal plane, preferably at an angle of 20-50 degrees seen to a horizontal plane.

Provided herein is a fluid projecting platform. In some embodiments, the fluid projecting platform herein is configured for use in firefighting, crowd dispersion, agriculture or other related tasks.

A fluid-jet emitting machine, particularly a firefighting machine, comprises a fluid-jet emitting device, a transport vehicle, lifting members and a control device. Each lifting member comprises an actuator constrained to the transport vehicle and at least one idler wheel adapted to engage a rail of a track. The actuators are configured to move the respective wheels between a non-operative position, in which the wheels are distanced from the respective rail, and an operative position, in which the wheels are arranged in contact with the respective rail. The control device is operatively associated with the actuators to activate the passage of the wheels from the non-operative position to the operative position so that during movement along a track and in said operative position, the wheels prove to be pressed against the respective rail, exerting a force such as to reduce only part of the pressure exerted by the movement means of the vehicle on the track.

The apparatus, system and method for the suppression and containment of wildfires is provided. The system can be designed as a mobile or a stationary containment system. Each system is operationally connected to a fan assembly that is in fluidic communications with a reservoir tank that is mounted within each, containment system. In one important aspect of the present invention each fan assembly can be customized and engineered to contain the associated wildfire environment.

A water spraying fan for firefighting. The water spraying fan includes a fan mechanism mounted onto a rotatable surface attached to a base. The fan mechanism has a plurality of fan blades connected to a power source and adapted to rotate quickly, creating a strong air flow when powered on. A cage encloses the fan blades and includes one or more circular manifolds secured to a front side and positioned concentric to the fan blade axis. The manifolds contain a plurality of nozzles that are configured to disperse a liquid, such as water. The manifolds are connected to a water source via a flow control box. When activated, water flows out of the nozzles and is carried across an extended distance via the water pressure and the strong air flow created by the fan mechanism. The water spraying fan can be rotated or tilted to achieve optimal positioning.

A fire suppression method and system in an aircraft involves a pressurized first-stage agent, and a pressurized second-stage agent. The first-stage agent or the second-stage agent includes trifluoromethyl iodide (CF.sub.3I). A plurality of outlets discharge the first-stage agent during a first duration and the second-stage agent during a second duration. An opening of each of the plurality of outlets is located in a lower quarter of a height of a cargo compartment.

The present invention is directed to a portable fan for the use in firefighting and other ventilation use-cases. The portable fan provides firefighters the ability to provide positive pressure ventilation in use for fighting fires which does not require power cables or combustible fuel powered motors, and provides increased portability, reduced risk, and reduced deployment time associated with managing and fighting a fire.

The invention includes an air mover device used for fire mitigation and protection. The core component is an air mover unit whose discharge airstream can be positioned using air rudders and/or a directional control assembly to provide air flows in optimum directions and capacity to counter unwanted fire progression or to promote fires in cases of back-burns. Additional support components include a power supply, its fuel source, a speed control mechanism for the air mover, an air mover inlet protective screen, a sparger unit to impart suppressant or retardant into the airstream, balancing feet, a removable nozzle, and instrumentation and controls to ensure function and safety of equipment and personnel. This device can be on a static or mobile platform, towed or self-propelled and can be locally or remotely controlled.

Devices, systems, and methods for extinguishing fires are provided. A device for extinguishing fires may include a nozzle defining a flow channel. The device may include a convector fluidly coupled with the flow channel and configured to introduce a flow through the flow channel. The device may also include a vortex generator disposed within the nozzle, the vortex generator positioned to interact with the flow and to form a stream-wise vortex external to the nozzle.

A system and method for extinguishing wildfires with the assistance of soundwaves at a distance is provided. The system generally comprises a camera, output device, waveguide, processor, power supply, and a non-transitory computer-readable medium having instructions stored thereon that instruct the processor to perform operations of the system. In one preferred embodiment, a database may be operably connected to the processor and store any data associated with a combustion reaction therein. In some preferred embodiments, the system may comprise a computing device having a user interface, which may present, to a user, data that may inform the user about a particular combustion reaction and/or allow the user to control the system remotely. The system and method are designed to safely stop wildfires without a resource that must be spent and subsequently replenished.