The application discloses a mixed-spray firefighting device, which includes a water nozzle and a powder nozzle. The water nozzle is disposed around an outside of the powder nozzle, and a powder spray port of the powder nozzle is provided behind a water spray port of the water nozzle. A fire-extinguishing agent powder sprayed from the powder nozzle and a water flow sprayed from the water nozzle are mixed in air outside the firefighting device. The fire-extinguishing agent powder is preferably sodium polyacrylate resin powder. The application solves the technical bottleneck of using the sodium polyacrylate resin powder as a fire-extinguishing agent in the prior art, so that the sodium polyacrylate resin powder can be sprayed into a fire field smoothly and continuously without blocking the powder spray port.

A technique for providing a water pumping system suitable for fighting wildfire, flood mediation, sewage transport, and the like is revealed. The system includes an internal combustion engine, a CVT with an input shaft and an output shaft, and a pump with an axial flow impeller. In one variation, multiple impeller stages are used and/or several systems are daisy-chained to provide for suitable delivery of water from its source. In another form, the system is carried by an all-terrain vehicle, side-by-side, or the like, to reach remote areas that need to move water to address a hazardous condition.

A fire-fighting system includes a pump, a nozzle for directing fluid flow from the pump to a target area, a discharge valve controlling fluid flow between the pump and the nozzle, a sensor coupled to the nozzle, and a controller communicatively coupled to the sensor. The sensor detects movement of the nozzle and generates a signal indicative of the detected movement. The controller communicatively coupled is configured to receive the signal from the sensor, and control at least one of the discharge valve, the pump, and the nozzle based on the detected movement of the nozzle.

Systems and apparatuses of a sprinkler frame having an upper section, a lower section, and a channel extending along a sprinkler axis are provided. The lower section can include apertures through the frame, a guide pin having a first end with a head, a second end, and a shaft extending therebetween. The shaft of the guide pin can translate in an axial direction of the sprinkler axis within the apertures of the sprinkler frame. The deflector can couple with the second end of the guide pin and can include a first side, second side, third side, and fourth side. The first side and the second side may be smaller than the third side and the fourth side and can include an end profile defining a first tine, second tine, third tine, and fourth tine separating a first slot, second slot, and third slot.

A zero-emissions emergency response vehicle includes at least one zero-emissions power system; at least one drive assembly coupled to the at least one zero-emissions power system and operable to move the vehicle with power from the at least one zero-emissions power system; and at least one ultra-high pressure (UHP) fluid delivery system mounted to the vehicle. The at least one UHP fluid delivery system includes a fluid reservoir mounted to the vehicle and configured to store a fire-suppression fluid, a fluid output tool fluidly coupled to the fluid reservoir, and at least one UHP pump-motor assembly coupled to the at least one zero-emissions power system and operable to circulate a flow of the fire-suppression fluid from the fluid reservoir to the fluid output tool with power from the at least one zero-emissions power system.

A zero-emissions emergency response vehicle includes at least one zero-emissions power system; at least one drive assembly coupled to the at least one zero-emissions power system and operable to move the vehicle with power from the at least one zero-emissions power system; and at least one ultra-high pressure (UHP) fluid delivery system mounted to the vehicle. The at least one UHP fluid delivery system includes a fluid reservoir mounted to the vehicle and configured to store a fire-suppression fluid, a fluid output tool fluidly coupled to the fluid reservoir, and at least one UHP pump-motor assembly coupled to the at least one zero-emissions power system and operable to circulate a flow of the fire-suppression fluid from the fluid reservoir to the fluid output tool with power from the at least one zero-emissions power system.

A sprinkler assembly guard includes a base, a plurality of protective members, and at least one clip member. The base has a plurality of base members centered about a central axis. Each of the protective members having a first portion radially spaced from the central axis and a second portion affixed to one of the base members and extending radially toward the central axis, the first portions of the plurality of protective members being angularly spaced about the central axis to define a cage volume for housing a sprinkler assembly. The at least one clip member is engaged with the protective members to draw the base members radially inward. The second portion of at least one of the protective members includes a securement member extending from the second portion and axially spaced from the base to define a space therebetween for securely housing a portion of a sprinkler frame.

A fire extinguishing apparatus of a vehicle is capable of effectively extinguishing a fire by uniformly and directly spraying a fire extinguishing agent in a wide range to a battery cell covered with an external structure in a vehicle. The fire extinguishing apparatus includes a cover, a spray nozzle, a controller, a driving device, and a fire extinguishing agent supplying device.

A fire extinguishing apparatus of a vehicle is capable of effectively extinguishing a fire by uniformly and directly spraying a fire extinguishing agent in a wide range to a battery cell covered with an external structure in a vehicle. The fire extinguishing apparatus includes a cover, a spray nozzle, a controller, a driving device, and a fire extinguishing agent supplying device.

A water and electrical supply system for firefighting may provide both a supply of water and electrical power that are usable by a load device(s), such as an electric pumping system or a battery charging system of a firefighting vehicle such as a fire engine. An electrical connector may be mounted in a connector housing, which may be supported by a hydrant. The electrical connector may be de-energized in a default non-use state.