Siemens Aktiengesellschaft

Amrona Ag

Peter Stahl

Markus Müller

Thomas Goulet

Markus MÜLLER

A system for preventing and/or extinguishing a fire in an enclosed target area in a vehicle. The system having a central compressed air source for supplying compressed air to a load circuit. A supply of compressed air is provided in a compressed air buffer tank is supplied to a gas separation device from the compressed air buffer tank. A nitrogen-enriched gas mixture is provided at an outlet of the gas separation device, and introduced into the target area. An inlet of the compressed air buffer tank is at least temporarily fluidically connected to an outlet of a central compressed air source, wherein compressed air can be supplied to the compressed air buffer tank. A fluidic connection is provided between the central compressed air source and the compressed air buffer tank if a load circuit is not drawing any compressed air from the central compressed air source.

Method and system for preventing and/or extinguishing a fire

A method, a fire alarm, and a fire alarm system enable detection and localization of a fire in monitored rooms, having two detector units for detecting a fire parameter, wherein an evaluation unit connected to both detector units is used for evaluation. According to the invention, the air in the monitored rooms is fed to the first detector unit via a first pipe conduit and to the second detector unit via a second pipe conduit. Both pipe conduits are arranged in each monitored room and provided with suction intakes. The air is supplied to both detectors by means of at least one suction unit, and the air speed in each pipe conduit is different. If at least one threshold value is detected, a time difference between the detection of the threshold value at the first detector unit and the detection of the same threshold value at the second detector unit is determined by the evaluation unit and, using the determined time difference, the location of the fire is determined according to the air speed in the first pipe conduit and the second pipe conduits.

Growing community of inventors

Zurich, Switzerland

Peter Stahl