Airbus Deutschland Gmbh

Alexander Scheidt

Thomas Grabow

Konstantin Kallergis

A system for fighting a fire in an enclosed space has at least one container () for holding a fire extinguishing agent under pressure. A pipe system connects a container outlet to a discharge in the enclosed space. A controllable flow control valve () in the pipe system is responsive to a flow control signal generated by a control unit () in response to sensed characteristics (pressure and/or temperature) of the agent. A trigger action initially opens the container to the pipe system. The valve is initially held open until concentration (A) of fire extinguishing agent in the enclosed space is sufficient to suffocate a started fire. Thereafter, the valve is opened intermittently to maintain a lower concentration of fire extinguishing agent in the space sufficient to prevent rekindling. More than one container may be used but only one is equipped with a valve controllable by a control unit.

Method and apparatus for extinguishing a fire in an enclosed space

A system for extinguishing and suppressing a fire in an enclosed space includes a Halon storage container and a nitrogen generator that are both connected by a duct system to extinguishing nozzles arranged in the enclosed space. Halon is supplied as a first extinguishing agent from the container to achieve a rapid initial extinguishing of the fire. Nitrogen enriched air is supplied as a second extinguishing agent from the nitrogen generator to achieve a continuous long-term fire suppression, commencing simultaneously with or after the introduction of the Halon. The nitrogen generator may include a molecular sieve to continuously generate the nitrogen enriched air from an inlet flow of environmental air.

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Bremen, Germany

Alexander Scheidt