Abstract: A fire protection system includes a fire extinguisher including a housing. The housing includes an extinguisher outlet and a burst disk. The burst disk configured to retain a volume of fire suppressant material in the housing. A firing cartridge is operably connected to the housing. The firing cartridge includes an output charge, and an ignition charge that, when detonated, causes release of the output charge to rupture the burst disk and release the volume of fire suppressant material through the extinguisher outlet. An optical fiber is configured to transmit a light signal toward the ignition charge to heat and detonate the ignition charge. A light source is operably connected to the optical fiber to transmit the light signal along the optical fiber.

Abstract: A fire suppression composition for use in an enclosed space, such as a cargo hold of an aircraft, as well as a fire suppression system or device, a method of suppressing a fire, and a method for preparing a fire suppression composition, are disclosed. The fire suppression composition includes: component (1), being 50 to 95 mol % nitrogen, based on the total fire suppression composition; component (2), being 5 to 25 mol % carbon dioxide or argon or a mixture thereof based on the total fire suppression composition; and component (3), being 0 to 25 mol % helium or neon or a mixture thereof, based on the total fire suppression composition; wherein the fire suppression composition has a density in the range of 1.1 to 1.3 kg/m3 at atmospheric pressure and 20° C.

Abstract: An aircraft engine fire extinguishing system includes a supply housing for containing a fire extinguishing agent. Also included is a line for routing the fire extinguishing agent from the supply housing. Further included is a nozzle structure operatively coupled to the line, the nozzle structure having a non-circular opening for expelling the fire extinguishing agent.

Abstract: A fire suppression blends of CF3I and 2-BTP with mol ratios from 1:5 and 5:1 are capable of passing peak inerting and sub-inerting tests. The CF3I:2-BTP fire suppression blends can also include carbon dioxide of up to 80% of the fire suppression blend to provide additional cooling.

Abstract: A fire and/or overheated condition detector for a lithium ion battery is provided. The fire and/or overheated condition detector includes a chamber defining a detection space fluidly communicative with an interior of the lithium ion battery, a temperature sensor operably disposed proximate to the detection space, gas detection assemblies configured to detect gases through absorption in the detection space and a smoke detection assembly configured to detect particle scattering in the detection space to discriminate smoke particles from nuisance particles.

Abstract: An aircraft engine fire extinguishing system includes a supply housing for containing a fire extinguishing agent. Also included is a line for routing the fire extinguishing agent from the supply housing. Further included is a nozzle structure operatively coupled to the line, the nozzle structure having a non-circular opening for expelling the fire extinguishing agent.

Abstract: A fire suppression composition comprises CF3I and CO2, wherein said CF3I is present in an amount of from 23 mol. % to 39 mol. %, based on the total moles of CF3I and CO2 present in the fire suppression composition. Alternatively, the fire suppression composition comprises CF3I and CO2, wherein said CF3I is present in an amount of from 53 mol. % to 85 mol. %, based on the total moles of CF3I and CO2 present in the fire suppression composition.

Abstract: A fire protection system includes two or more fire extinguishers. Each fire extinguisher includes a housing, the housing including an extinguisher outlet and a burst disk. The burst disk is configured to retain a volume of fire suppressant material in the housing. A firing cartridge is operably connected to the housing and includes an output charge, and an ignition charge that, when detonated, causes release of the output charge to rupture the burst disk and release the volume of fire suppressant material through the extinguisher outlet. An optical fiber is configured to transmit a light signal toward the ignition charge to heat and detonate the ignition charge. A light source is operably connected to the optical fiber to selectably transmit a first light signal to selectably activate a first fire extinguisher or a second fire extinguisher of the two or more fire extinguishers.

Abstract: A fire protection system includes a fire extinguisher including a housing. The housing includes an extinguisher outlet and a burst disk. The burst disk configured to retain a volume of fire suppressant material in the housing. A firing cartridge is operably connected to the housing. The firing cartridge includes an output charge, and an ignition charge that, when detonated, causes release of the output charge to rupture the burst disk and release the volume of fire suppressant material through the extinguisher outlet. An optical fiber is configured to transmit a light signal toward the ignition charge to heat and detonate the ignition charge. A light source is operably connected to the optical fiber to transmit the light signal along the optical fiber.

Abstract: A fire suppression system in an aircraft includes a first nozzle within a region to perform discharge of a fire suppression agent in a first direction within a region. The systems also includes a second nozzle within the region to perform discharge of the fire suppression agent in a second direction within the region. The discharge in the first direction by the first nozzle and the discharge in the second direction by the second nozzle generate and maintain a vortex of the fire suppression agent that occupies the region with rotational flow.

Abstract: A fire suppression blends of CF3I and 2-BTP with mol ratios from 1:5 and 5:1 are capable of passing peak inerting and sub-inerting tests. The CF3I: 2-BTP fire suppression blends can also include carbon dioxide of up to 80% of the fire suppression blend to provide additional cooling.

Abstract: A fire suppressant blend comprises CF3I; at least one hydrofluoro-olefin (HFO) or hydrochlorofluoro-olefin (HCFO), or both; and carbon dioxide.

Abstract: A fire suppression system includes at least one high pressure gas source containing an inert gas, at least one low pressure gas source containing an organic halide gas, a distribution network connected with the high pressure gas source and the low pressure gas source to distribute the inert gas and the organic halide gas, and a controller in communication with the distribution network. The distribution network includes flow control devices configured to control flow of the inert gas and the organic halide gas. The controller is configured to initially release the inert gas in response to a fire threat to reduce an oxygen concentration at the fire threat below a preset oxygen concentration threshold, and release the organic halide gas to increase an organic halide gas concentration at the fire threat above a preset organic halide gas concentration threshold while the oxygen concentration is below the preset oxygen concentration threshold.

Abstract: Disclosed is a fire suppressant system for an aircraft having: a source of a fire suppressant; a tubing system for delivering the fire suppressant to one or more predetermined locations; and a discharge nozzle disposed in the one or more predetermined locations, the discharge nozzle connected to the tubing system for distributing the fire suppressant in the one or more predetermined locations during a fire, the discharge nozzle including a plurality of nozzle heads including a first nozzle head with a first flow area and a second nozzle head with a second flow area that differs from the first flow area.

Abstract: A smoke and temperature detection system includes a plurality of fiber optic cables terminating in a plurality of nodes positioned to monitor a fire or smoke condition at one or more protected spaces, and a temperature detection fiber optic cable having a plurality of fiber Bragg gratings arrayed along the temperature detection fiber optic cable. A control system is operably connected to the plurality of fiber optic cables and to the temperature detection fiber optic cable. The control system includes a first light sensitive device configured to receive a scattered light signal from the plurality of fiber optic cables, and a second light sensitive device configured to receive a reflected light signal from the fiber Bragg gratings. The control system is configured to detect a temperature at the fiber Bragg gratings based on one or more properties of the reflected light signal received at the second light sensitive device.

Abstract: Provided are embodiments for a system for designing a layout for a smoke detection system, the system include a storage medium, the storage medium being coupled to a computing engine. The computing engine is configured to receive one or more inputs, model transport and dispersion of smoke in an environment based on the one or more inputs, wherein the model is based on a computational fluid dynamics (CFD) function, and detect the smoke using a plurality of probes. The computing engine is also configured to define a layout of the smoke detectors based on the smoke detectors being able to detect the smoke in the environment, and provide a map of the smoke detectors for the layout. Also provided are embodiments for a method to design a layout for a smoke detection system.

Abstract: A thermal sensor and a method of making a thermal sensor is disclosed. The thermal sensor includes a first electrode, a second electrode, and a composition between the first and second electrodes. The composition includes solid particles of a state-changing material that transitions at a threshold temperature between solid and liquid states having different electrical conductivities.

Abstract: A fire suppression composition comprises CF3I and CO2, wherein said CF3I is present in an amount of from 23 mol. % to 39 mol. %, based on the total moles of CF3I and CO2 present in the fire suppression composition. Alternatively, the fire suppression composition comprises CF3I and CO2, wherein said CF3I is present in an amount of from 53 mol. % to 85 mol. %, based on the total moles of CF3I and CO2 present in the fire suppression composition.

Abstract: A fire suppression system in an aircraft includes a first nozzle within a region to perform discharge of a fire suppression agent in a first direction within a region. The systems also includes a second nozzle within the region to perform discharge of the fire suppression agent in a second direction within the region. The discharge in the first direction by the first nozzle and the discharge in the second direction by the second nozzle generate and maintain a vortex of the fire suppression agent that occupies the region with rotational flow.

Abstract: Disclosed herein is a system and method for monitoring a gaseous fire suppression blend. The system includes a sensor array having a plurality of sensors disposed in a protected space, wherein the sensor array can detect and quantify more than one component of the gaseous fire suppression blend.