A fire suppression nozzle assembly includes a nozzle having a first tube defining an axially extending passageway. The passageway includes a plurality of primary outlets disposed on a sidewall of the first tube. The nozzle also includes a second tube circumscribing the first tube to define a chamber. The primary outlets provide fluid communication between the passageway and the chamber. A sidewall of the second tube has a first set of radially facing secondary outlets axially offset from the primary outlets in a first direction and a second set of radially facing secondary outlets axially offset from the primary outlets in a second direction opposite the first direction. The nozzles disclosed herein are configured such that gas exiting a plurality of outlet holes is balanced.

Fire spikes and fire spike tips adapted to penetrate a surface and distribute a fire suppressant, such as, water, on the opposite side of the surface are provided. The fire spike tips include a cylindrical body having a first end adapted to be received by a conduit and a second end having a pointed projection adapted to penetrate the surface; an internal cavity in the cylindrical body having an open first end and a closed second end; a plurality of first orifices in the body, each of the plurality of first orifices directed in a first substantially radial direction; and a plurality of second orifices in the body, each of the plurality of second orifices directed in a second direction which at least partially intersects with the first direction of the plurality of first orifices. Kits for the fire spikes and methods of suppressing fire are also provided.

A fire suppression nozzle can include a first fluid channel configured to be in fluid communication with a first fluid having a first flow velocity and a second fluid channel configured to be in fluid communication with a second fluid having a second flow velocity. A mixer can be disposed between the first fluid channel and the second fluid channel such that the mixer is configured to induce streamwise vorticity in at least the first fluid exiting first fluid channel to cause mixing of the first fluid and the second fluid to reduce a flow speed of a mixture of the first fluid and the second fluid.

A fire suppression nozzle can include a first fluid channel configured to be in fluid communication with a first fluid having a first flow velocity and a second fluid channel configured to be in fluid communication with a second fluid having a second flow velocity. A mixer can be disposed between the first fluid channel and the second fluid channel such that the mixer is configured to induce streamwise vorticity in at least the first fluid exiting first fluid channel to cause mixing of the first fluid and the second fluid to reduce a flow speed of a mixture of the first fluid and the second fluid.

A nozzle assembly includes a nozzle body, a first flow straightener coupled to the nozzle body, and a second flow straightener coupled to the nozzle body. The nozzle body defines an inlet, an outlet, and a nozzle body passage extending between the inlet and the outlet. The first flow straightener extends at least partially across the nozzle body passage and defines a first passage and a second passage each fluidly coupling the inlet and the outlet. The second flow straightener extends at least partially across the nozzle body passage and defines a third passage and a fourth passage each fluidly coupling the inlet and the outlet.

A fire extinguishing system including a fluid storage container configured to store a fire extinguishing agent, and a fluid stream separating device coupled to the fluid storage container, where the fire extinguishing agent passes from the fluid storage container through the fluid stream separating device so that the fluid stream separating device raises a temperature of at least a portion of the fire extinguishing agent flowing through the fluid stream separating device above a boiling point of the fire extinguishing agent at ambient environmental conditions of a discharge location of the fluid stream separating device.

A fire extinguishing system including a fluid storage container configured to store a fire extinguishing agent, and a fluid stream separating device coupled to the fluid storage container, where the fire extinguishing agent passes from the fluid storage container through the fluid stream separating device so that the fluid stream separating device raises a temperature of at least a portion of the fire extinguishing agent flowing through the fluid stream separating device above a boiling point of the fire extinguishing agent at ambient environmental conditions of a discharge location of the fluid stream separating device.

The invention provides a method of generating a guidable vortex stream of an atomised mixture of a substance that is discharged as a salvo from a multiple-nozzle pulse discharge device, where the vortex stream fragments created in individual discharging nozzles that are part of the salvo are joined, the range and shape of the spread and effect area of the vortex stream that is dispersed to a relatively long distance as a uniform, large-scale front is shaped by the number of the discharging nozzles that are part of the salvo, their position with respect to each other, the choice of the active substance loaded inside the discharging nozzles, the sequence of initiation of the discharging nozzles or their groups and the time offset between the initiations.

The invention provides a method of generating a guidable vortex stream of an atomised mixture of a substance that is discharged as a salvo from a multiple-nozzle pulse discharge device, where the vortex stream fragments created in individual discharging nozzles that are part of the salvo are joined, the range and shape of the spread and effect area of the vortex stream that is dispersed to a relatively long distance as a uniform, large-scale front is shaped by the number of the discharging nozzles that are part of the salvo, their position with respect to each other, the choice of the active substance loaded inside the discharging nozzles, the sequence of initiation of the discharging nozzles or their groups and the time offset between the initiations.

A fire extinguishing nozzle for a fire extinguishing system of a wheeled land vehicles includes a mounting portion, an extinguishing agent connection, a fixed nozzle section, and moveable nozzle sections. The mounting portion mounts the fire extinguishing nozzle to an outside portion of the wheeled land vehicle. The extinguishing agent connection couples the first extinguishing nozzle to an extinguishing agent reservoir. The fixed nozzle section is fixedly mounted to the mounting portion. The moveable nozzle sections form a telescopic nozzle arrangement configured to extend from the fixed nozzle section in a telescoping manner upon receiving a pressurized extinguishing agent at the extinguishing agent connection.