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公开(公告)号：US20240350849A1
公开(公告)日：2024-10-24
申请号：US18456601
申请日：2023-08-28
发明人： Eli Baldwin , Paul Papas , Mark P. Fazzio , Adam Chattaway , Lloyd Kent Ballard , James Varnell , Saul Salas , Eric S. Langley
IPC分类号： A62C37/50
CPC分类号： A62C37/50
摘要： A method is disclosed for evaluating inerting concentration of a fire suppression agent. The method includes flowing air upward into a chimney tube and flowing fuel into the flowing air in the chimney tube. A targeted concentration of the fire suppression agent is introduced into the flowing air and into the flowing fuel in the chimney tube. An ignitor is ignited to provide ignition energy to the flowing air and the flowing fuel, and the ignitor is deactivated. The targeted concentration of the fire suppression agent is at or above the inerting concentration of the fire suppression agent if combustion of the flowing fuel does not persist beyond three seconds after the ignitor is deactivated.
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公开(公告)号：US20240204271A1
公开(公告)日：2024-06-20
申请号：US18083510
申请日：2022-12-17
CPC分类号： H01M10/48 , A62C3/16 , A62C37/40 , G01N33/004 , G01N33/005 , G01N33/0063 , H01M2220/20
摘要： A system for detecting gas leakage within a battery pack includes a battery pack, a controller, and a detector. The battery pack comprises a plurality of cells which may be subject to a gas leakage. The detector is configured to sense a concentration value of one or more gases. The detector is further configured to generate a return signal indicative of no alarm, a first alarm level, or a second alarm level. The detector is electrically connected to the controller and is configured to transmit the return signal to the controller. The controller is configured to output a first alarm level or a second alarm level in response to the return signal. Emergency response procedures may be implemented based on the level of gas leakage within the battery pack indicated.
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公开(公告)号：US20240198153A1
公开(公告)日：2024-06-20
申请号：US18083517
申请日：2022-12-17
IPC分类号： A62C35/02 , A62D1/00 , H01M10/613 , H01M10/625 , H01M10/6569
CPC分类号： A62C35/023 , A62D1/0092 , H01M10/613 , H01M10/625 , H01M10/6569 , A62C3/07 , H01M2200/00 , H01M2220/20
摘要： A fire suppressant for cooling a battery cell in a battery pack includes a pressurized mixture of an organic compound and carbon dioxide. The organic compound is 1,1,1,2,2,4,4,5,5,5-nonafluoro-4-(trifluoromethyl)-3-pentanone. A ratio of a mass of the organic compound to a mass of the carbon dioxide is between 1:4 and 4:1. The mixture is pressurized above a vapor pressure of the carbon dioxide. The carbon dioxide, when depressurized, evaporates and cools the organic compound and the battery cell. The mixture, when depressurized, flows through the battery cell. An amount of the fire suppressant flowed through the battery pack is equal to or greater than an inerting volume of fire suppressant for the battery pack.
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公开(公告)号：US11998782B2
公开(公告)日：2024-06-04
申请号：US16575634
申请日：2019-09-19
发明人： Aaron Stanley Rogers
CPC分类号： A62C37/44 , A62C3/08 , G01N21/7703
摘要： Systems and methods for a fire suppression system are provided. Aspects include receiving, from a sensor, environmental data associated with a location, determining a presence of a fire and a fire type based at least in part on the environmental data associated with the location, operating a fire suppression system in a plurality of modes based on the presence of the fire and the fire type, wherein the plurality of modes comprise a normal fire operation mode and a hazardous fire operation mode.
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公开(公告)号：US11865385B2
公开(公告)日：2024-01-09
申请号：US17118827
申请日：2020-12-11
CPC分类号： A62C35/023 , A62C35/13
摘要： A fire suppression system includes a feed port and a channel to couple the feed port to an actuation chamber. A solenoid valve controllably blocks a connection between the feed port and the channel. Pressure from the feed port builds up in the actuation chamber based on the solenoid valve unblocking the connection. A piston is in communication with the actuation chamber. The system also includes an inlet port closed off by a disc. The piston travels through the inlet port and burst the disc based on the pressure in the actuation chamber. An outlet port is coupled to the inlet port.
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公开(公告)号：US20230387502A1
公开(公告)日：2023-11-30
申请号：US17828267
申请日：2022-05-31
IPC分类号： H01M10/6556 , H01M10/613 , H01M10/625 , H01M10/6569 , H01M10/653
CPC分类号： H01M10/6556 , H01M10/613 , H01M10/625 , H01M10/6569 , H01M10/653 , H01M2220/20
摘要： A battery system of an aircraft includes one or more battery packages. Each battery package includes a plurality of battery cells. A thermal management system is fluidly connected to the one or more battery packages. The cooling system has a flow of coolant flowing therethrough. Thermal energy is dissipated from the one or more battery packages via a phase change of the flow of coolant. A method of managing thermal energy of a battery package includes conducting thermal energy from a plurality of battery cells via a conductive inter-cell separator located between adjacent battery cells, and transferring the thermal energy from the inter-cell separator to a flow of coolant in thermal communication with the conductive inter-cell separator, thereby causing a phase change in the flow of coolant resulting in cooling of the plurality of battery cells. The thermal energy is then dissipated from the flow of coolant.
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公开(公告)号：US20230218938A1
公开(公告)日：2023-07-13
申请号：US18180578
申请日：2023-03-08
发明人： Robin Jacob , Balasundar Kuppusamy
摘要： A method of additively manufacturing a fire and overheat detection system (FODS) clamp onto a rail tube is provided. The method includes building a base of a clamp body on the rail tube, sequentially building portions of a locking feature and holders of the clamp body on the base and sequentially building remaining portions of the holders and flanges forming grooves at each of the holders of the clamp body on the base.
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公开(公告)号：US11682282B2
公开(公告)日：2023-06-20
申请号：US17088323
申请日：2020-11-03
IPC分类号： G08B17/103 , G01K11/3206 , G02B6/02 , G08B17/06
CPC分类号： G08B17/103 , G01K11/3206 , G02B6/0208 , G08B17/06
摘要： A system for detecting a fire or overheating event includes a heat detector, an optical fiber, a photodetector, and a processing unit. The pneumatic heat detector includes a sealed chamber sealed with a diaphragm having an initial position, and the optical fiber is in operable communication with the diaphragm. The optical fiber includes a Fiber Bragg Grating (FBG). The optical signal generator is configured to emit an optical signal with into the optical fiber. The photodetector is configured to receive a reflected optical signal from the FBG. The processing unit is configured to correlate the reflection wavelength of the reflected optical signal with a temperature of the heat detector.
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公开(公告)号：US20230115355A1
公开(公告)日：2023-04-13
申请号：US17484774
申请日：2021-09-24
摘要： A flow control device is including a tubular body including a tubular wall with an inner surface, an outer surface, and one or more openings extending from the outer surface to the inner surface through the tubular wall; a faired body encircling the tubular body, the faired body including a radially inner surface and a radially outer surface; and a flow shield encircling the faired body, the flow shield including a radially inward surface and a radially outward surface, the radially inward surface being in a facing spaced relationship with the radially outer surface of the faired body defining a passageway therebetween, wherein the passageway is fluidly connected to the one or more openings.
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公开(公告)号：US20230092269A1
公开(公告)日：2023-03-23
申请号：US17529868
申请日：2021-11-18
IPC分类号： G01K11/3206 , G01H9/00 , B64D45/00
摘要： A detection system in an aircraft includes an optical fiber arranged along a structure of the aircraft and affixed to the structure with clamps that are spaced apart along the structure. The optical fiber includes two or more sets of fiber Bragg gratings (FBGs). The system also includes a light source to generate light with two or more wavelengths for injection into the optical fiber, and processing circuitry to identify an overheat condition and monitor vibration experienced by the optical fiber based on reflected signals generated by the two or more sets of FBGs. Integrity of the clamps is indicated by monitoring the vibration.
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