A device for suppressing fire inside a container includes a support structure configured to be mounted inside a vehicle at a position associated with at least one location configured to receive a container. The device further includes a deployment structure coupled to the support structure and a penetrator assembly coupled to the deployment structure. The penetrator assembly includes a nozzle having a tip configured to pierce a container and an actuator associated with the nozzle. The actuator is configured to extend the tip of the nozzle such that it pierces a container. The support structure and the deployment structure are configured such that the penetrator assembly is movable in at least one plane with respect to the support structure, and the penetrator assembly is configured to receive fire suppressant and direct the fire suppressant into the container.

A device for suppressing fire inside a container includes a support structure configured to be mounted inside a vehicle at a position associated with at least one location configured to receive a container. The device further includes a deployment structure coupled to the support structure and a penetrator assembly coupled to the deployment structure. The penetrator assembly includes a nozzle having a tip configured to pierce a container and an actuator associated with the nozzle. The actuator is configured to extend the tip of the nozzle such that it pierces a container. The support structure and the deployment structure are configured such that the penetrator assembly is movable in at least one plane with respect to the support structure, and the penetrator assembly is configured to receive fire suppressant and direct the fire suppressant into the container.

A fire suppression apparatus for fighting fires from a vehicle configured for flight is disclosed, comprising a foam and water held in separate containers aboard the vehicle that when mixed forms a fire retardant, a pump driven by an electric motor to pressurize the fire retardant, the pump including an air induction valve where air is drawn into a suction end of the pump and pressurized together with the fire retardant, and an aimable boom connected to the pump by a conduit, the boom including a nozzle on a distal end of the boom from which the pressurized fire retardant and air is dispensed toward a target.

A foam production method includes mixing liquid nitrogen with a foaming material to produce foam. A gas is produced in situ from liquid nitrogen. As the ratio of the volume of the gas produced by gasification of liquid nitrogen to the volume of the liquid nitrogen is relatively high, when a large gas supply flow is needed to generate a large foam flow, a liquid nitrogen storage device of a small volume can be used instead of bulky air supply devices such as high-pressure gas cylinders, air compressors, air compressor sets and the like, reducing the volume of the air supply device. In addition, the liquid nitrogen used in foaming will release nitrogen gas after the foam blast, such that the nitrogen is also able to inhibit combustion on the surface of burning materials, accelerating the extinguishing of the fire.

A foam production method includes mixing liquid nitrogen with a foaming material to produce foam. A gas is produced in situ from liquid nitrogen. As the ratio of the volume of the gas produced by gasification of liquid nitrogen to the volume of the liquid nitrogen is relatively high, when a large gas supply flow is needed to generate a large foam flow, a liquid nitrogen storage device of a small volume can be used instead of bulky air supply devices such as high-pressure gas cylinders, air compressors, air compressor sets and the like, reducing the volume of the air supply device. In addition, the liquid nitrogen used in foaming will release nitrogen gas after the foam blast, such that the nitrogen is also able to inhibit combustion on the surface of burning materials, accelerating the extinguishing of the fire.

A compressed air foam (CAF) mixing device is suitable for use in a CAF system that includes a pressurized source of a water soap mixture and a pressurized air source. The CAF mixing device includes an inlet portion, a venturi portion and a deceleration portion. The venturi portion communicates with the inlet portion and includes a constricted zone which presents a smaller cross sectional area than the inlet portion. The venturi portion opens into the deceleration portion that has a substantially larger cross sectional area than the venturi portion. At least one pressurized air conduit communicates with the pressurized air source and is arranged to be adjacent to the deceleration portion. At least one aperture communicates between the pressurized air conduit and the deceleration portion and introduces high pressure air into the deceleration portion in order to produce a water soap foam (CAF) suitable for firefighting.

A fire extinguishing system of an air mobility vehicle includes a refrigerant flow line in which a refrigerant flows, and including a compressor, a condenser, a first expansion valve, and an evaporator, a fire extinguishing liquid flow line connected to the refrigerant flow line via a connection valve, and configured to spray a mixed liquid of a fire extinguishing liquid and the refrigerant, a mixing part connected to the fire extinguishing liquid flow line, and configured to mix the refrigerant and the fire extinguishing liquid, and a fire extinguishing liquid storage part configured to store the fire extinguishing liquid and to discharge the fire extinguishing liquid into a mixing space of the mixing part.

A fire extinguishing system of an air mobility vehicle includes a refrigerant flow line in which a refrigerant flows, and including a compressor, a condenser, a first expansion valve, and an evaporator, a fire extinguishing liquid flow line connected to the refrigerant flow line via a connection valve, and configured to spray a mixed liquid of a fire extinguishing liquid and the refrigerant, a mixing part connected to the fire extinguishing liquid flow line, and configured to mix the refrigerant and the fire extinguishing liquid, and a fire extinguishing liquid storage part configured to store the fire extinguishing liquid and to discharge the fire extinguishing liquid into a mixing space of the mixing part.

An admixing system for fire-extinguishing installations is provided for generating a mixture (premix) of extinguishing medium and extinguishing medium additive by admixing an extinguishing medium additive to an extinguishing medium. The admixing system has a motor that can be driven by a flow of extinguishing medium, an admixing pump that is connected to the motor and serves for supplying the extinguishing medium additive to an extinguishing medium additive inlet line, an admixing line, and an extinguishing medium additive outlet line from which the extinguishing medium additive is admixed to the extinguishing medium in the admixing line. The admixing pump is a piston pump having multiple cylinders and at least two outputs connected to the cylinders. At least one first output, through which return flow is possible, can be switchably fluidically connected either to a return flow line through which the extinguishing medium additive flows back to the admixing pump, or to the extinguishing medium additive outlet line. If the extinguishing medium additive flows from the return-flow-compatible output back to the admixing pump, it is therefore not admixed to the extinguishing medium in the admixing line. Thus, the admixing rate can be changed simply by means of this switching.

An admixing system for fire-extinguishing installations is provided for generating a mixture (premix) of extinguishing medium and extinguishing medium additive by admixing an extinguishing medium additive to an extinguishing medium. The admixing system has a motor that can be driven by a flow of extinguishing medium, an admixing pump that is connected to the motor and serves for supplying the extinguishing medium additive to an extinguishing medium additive inlet line, an admixing line, and an extinguishing medium additive outlet line from which the extinguishing medium additive is admixed to the extinguishing medium in the admixing line. The admixing pump is a piston pump having multiple cylinders and at least two outputs connected to the cylinders. At least one first output, through which return flow is possible, can be switchably fluidically connected either to a return flow line through which the extinguishing medium additive flows back to the admixing pump, or to the extinguishing medium additive outlet line. If the extinguishing medium additive flows from the return-flow-compatible output back to the admixing pump, it is therefore not admixed to the extinguishing medium in the admixing line. Thus, the admixing rate can be changed simply by means of this switching.