Abstract: 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.

Abstract: The invention relates to a oxygen reduction system as well as a method for operating an oxygen reduction system. The oxygen reduction system comprises an inert gas source and a line system which is fluidly connected or connectable to the inert gas source and to the at least one enclosed area in order to supply the gas provided by the inert gas source to the at least one enclosed area as needed. The invention provides for conducting a leak test on at least one section of the line system by pressure-testing the line section to be checked for tightness using at least a portion of the gas mixture or gas provided by the inert gas source.

Abstract: The invention relates to a device (100) for providing a crossover point between a first region (1) and a second region (2) hermetically delimited from the first region (1) by means of a wall (10), wherein the device comprises:—a lock chamber (12), which can be inserted into an opening (11) provided in the wall and which has a first opening (13) forming a crossover point between the first region and the lock chamber and which has a second opening (14) forming a crossover point between the second region and the lock chamber;—at least one peripherally circulating element (15), which has at least one passage opening (15.1; 19.1; 15.2; 19.

Abstract: A system for reducing the oxygen content in the spatial atmosphere of an enclosed area and/or for maintaining a reduced oxygen content in the spatial atmosphere of an enclosed area below a predefined and reduced operating concentration in comparison to the oxygen concentration of the normal ambient air. The system includes a gas separation system to that end, the outlet of which is fluidly connected to the enclosed area in order to continuously supply an oxygen-reduced gas mixture or oxygen-displacing gas. The gas separation system is configured such that the oxygen concentration in the spatial atmosphere of the enclosed area always remains in a range between the predefined operating concentration and a predefined or definable lower limit concentration during a continuous operation of the gas separation system.

Abstract: The present invention relates to a system as well as a method for extinguishing fire in an enclosed room (6) in which the enclosed room (6) is flooded with extinguishing gas at least until an extinguishing gas concentration capable of providing an extinguishing effect (a) is set in the flood zone. In order to achieve the realizing of a maximum extinguishing gas concentration (b) as quickly as possible without the flooding of the room (6) thereby posing a danger to people, it is inventively provided for the flooding of the enclosed room (6) to be divided into a pre-flooding phase and a main flooding phase subsequent thereto. The pre-flooding phase corresponds to an interval of time between the time (t1) the alarming starts to warn people of impending danger and a predefined time (t2). The main flooding phase corresponds to an interval of time between the predefined time (t2) and the time (t4) at which a maximum extinguishing gas concentration (b) is reached.

Abstract: A system for reducing the oxygen content in the spatial atmosphere of an enclosed area and/or for maintaining a reduced oxygen content in the spatial atmosphere of an enclosed area below a predefined and reduced operating concentration in comparison to the oxygen concentration of the normal ambient air. The system includes a gas separation system to that end, the outlet of which is fluidly connected to the enclosed area in order to continuously supply an oxygen-reduced gas mixture or oxygen-displacing gas. The gas separation system is configured such that the oxygen concentration in the spatial atmosphere of the enclosed area always remains in a range between the predefined operating concentration and a predefined or definable lower limit concentration during a continuous operation of the gas separation system.

Abstract: An assembly (100) for attenuating the impinging light of a beam of radiation of finite expansion with the objective of realizing reliable attenuation particularly of directly impinging light comprises a light source (10) for producing a beam of unpolarized light, preferably unpolarized monochromatic light, a useful light region (50) through which the unpolarized light passes and preferably passes through in a straight line from the light source (10) as well as an absorption device (30) arranged downstream of the useful light region (50) and preferably downstream in the direction of the direct beam radiation for at least partly absorbing impinging light, wherein the absorption device (30) comprises at least one polarization device (31, 32) arranged in the direction of the light beam.

Abstract: The present invention relates to a gas extinguishing system for a predefined protected area, particularly small-parts storage systems, wherein the gas extinguishing system comprises an inert gas source and a diffuser system fluidly connected to the inert gas source by a tubing system. The diffuser system comprises a diffuser tube having a plurality of drill holes provided in the surface of the diffuser tube and a pressure reducer allocated to the diffuser tube. In order to be able to achieve non-interactiveness with respect to the diffuser system from the standpoint of the design of the gas extinguishing system, the inventive provides for designing the diffuser system such that a primary baffle pressure measured in absolute bar is at least twice as high as the internal pressure of the diffuser tube during the flooding period dimensioned for the protected area and that the internal pressure of the diffuser tube during the dimensioned flooding period is at a maximum of 2 bar absolute.

Abstract: A system for reducing oxygen in a target room, particularly for the purpose of controlling or preventing fire, wherein the system comprises an enclosed buffer space which is fluidly connectable or connected to the target room for the as-needed introduction of at least a portion of the room air of the buffer space into the target room. The system moreover comprises an oxygen-reducing mechanism allocated to the buffer space for setting and maintaining a reduced oxygen content in the spatial atmosphere of the buffer space compared to the normal earth atmosphere such that the oxygen content in the spatial atmosphere of the buffer space is lower than the oxygen content in the spatial atmosphere of the target room. The system moreover comprises a mechanism for introducing room air from the buffer space into the target room as needed.

Abstract: The invention relates to a bus system (1) comprising a control unit (2) and at least one bus node (3.1, 3.2, 3.3). The control unit (2) is allocated at least two data communication interfaces (2.1, 2.2) which are respectively designed to transmit and receive data. The at least one bus node (3.1, 3.2, 3.3) comprises a bus coupler having at least two data communication interfaces (3.11, 3.12; 3.21, 3.22; 3.31, 3.32) respectively designed to transmit and receive data. The control unit (2) and the at least one bus node (3.1, 3.2, 3.3) are respectively connected together via their data communication interfaces and corresponding two-point connections (8) to form a ring topology. The bus coupler of the at least one bus node is designed to directly and without delay transmit, and thus forward, data received at one of its at least two communication interfaces via its other data communication interface.

Abstract: The invention relates to a method for determining and/or monitoring the air tightness of an enclosed room (2) which is equipped with an oxygen reducing system (1) and in the atmosphere of which at least one oxygen content that can preferably be determined in advance and is reduced in comparison to the normal surrounding air can be set and maintained in order to prevent and/or extinguish fires by introducing an oxygen-displacing gas. The oxygen reducing system (1) has a compressor system (4; 4.1, 4.2) for compressing an initial gas mixture and a gas separation system (3; 3.1, 3.2) downstream of the compressor system (4; 4.1, 4.2) for separating at least one part of the oxygen contained in the initial gas mixture and for providing a nitrogen-enriched gas which is supplied to the enclosed room (2). The differential pressure set in the room (2) is ascertained and compared to a corresponding reference value, whereby information regarding the air tightness of the room (2) is provided.

Abstract: The present invention relates to a system as well as a method for extinguishing fire in an enclosed room (6) in which the enclosed room (6) is flooded with extinguishing gas at least until an extinguishing gas concentration capable of providing an extinguishing effect (a) is set in the flood zone. In order to achieve the realizing of a maximum extinguishing gas concentration (b) as quickly as possible without the flooding of the room (6) thereby posing a danger to people, it is inventively provided for the flooding of the enclosed room (6) to be divided into a pre-flooding phase and a main flooding phase subsequent thereto. The pre-flooding phase corresponds to an interval of time between the time (t1) the alarming starts to warn people of impending danger and a predefined time (t2). The main flooding phase corresponds to an interval of time between the predefined time (t2) and the time (t4) at which a maximum extinguishing gas concentration (b) is reached.

Abstract: The invention relates to an inerting system as well as an inerting method for reducing oxygen in which an oxygen content which is predefinable and reduced in comparison to normal ambient air is set and maintained in the spatial atmosphere of an enclosed room (2). To this end, the inerting system (1) comprises a compressor system (3) for compressing an initial gas mixture as well as a gas separation system (10) connected to the compressor system (3). At least a portion of the oxygen contained within the compressed initial gas mixture is separated in the gas separation system (10). The gas separation system (10) is designed to be selectively operated in either a VPSA mode or a PSA mode.

Abstract: The invention relates to an inerting method as well as an inerting system (1) to set and/or maintain a reduced oxygen content in an enclosed room (2), wherein a gas separation system (3.1, 4.1; 3.2, 4.2; 3.3, 4.3) is provided which separates off at least a portion of the oxygen from an initial gas mixture provided in a mixing chamber (6) and by so doing, provides a nitrogen-enriched gas mixture. In order to optimize the operation of the inerting system (1), the invention provides for a portion of the air to be withdrawn from the enclosed room (2) and admixed with fresh air in the mixing chamber (6).

Abstract: A device and a method for detecting scattered light signals is specified. A light source exposes a scattered light area in which particles may be present to light. With the objective of reducing costs and improving detection accuracy, the device comprises a plurality of optical sensors for detecting scattered light and an evaluation unit for evaluating the signals detected by the optical sensors, wherein the sensors are each arranged at a sensor angle relative to the incident axis of the incident light so as to detect scattered light from the scattered light area, wherein one of the plurality of optical sensors is a reference sensor, and wherein the evaluation unit is designed to relate the signal profiles of the other optical sensors to the signal profile of the reference sensor, wherein the signal profiles of the optical sensors serve in classifying any particles which may be present in the scattered light area.

Abstract: The present invention relates to an inerting method for extinguishing a fire in a closed room in which the oxygen content in the closed room is reduced to a specific inerting level within a given time (x), as well as a device for carrying out the method. In order to achieve the most exacting design possible to the inert gas fire-extinguishing system used during the inerting method, and in particular the most precise dimensioning possible to the inert gas to be provided, while simultaneously adhering to the required fire-fighting stage and re-ignition prevention stage necessary when extinguishing fires, the invention provides for the inerting level to be kept to the re-ignition prevention level within a given regulation range.

Abstract: The invention relates to an inert gas fire-extinguishing system for reducing the risk of and extinguishing fires in a protected room. So as to have the inerting of the protected room ensue according to different variable sequences of events, the inert gas fire-extinguishing system includes a pressure-reducing device having at least two parallel branches, wherein each parallel branch has a pressure-reducing mechanism. Each parallel branch is connectable to a high-pressure collecting line and a low-pressure extinguishing line via a controllable valve, whereby each pressure-reducing mechanism is designed to reduce a high input pressure to a low output pressure according to a known pressure-reducing characteristic curve.

Abstract: The invention relates to an inerting method as well as an inerting system (1) to set and/or maintain a reduced oxygen content in an enclosed room (2), wherein a gas separation system (3.1, 4.1; 3.2, 4.2; 3.3, 4.3) is provided which separates off at least a portion of the oxygen from an initial gas mixture provided in a mixing chamber (6) and by so doing, provides a nitrogen-enriched gas mixture. In order to optimize the operation of the inerting system (1), the invention provides for a portion of the air to be withdrawn from the enclosed room (2) and admixed with fresh air in the mixing chamber (6).

Abstract: The invention relates to an inerting system as well as an inerting method for reducing oxygen in which an oxygen content which is predefinable and reduced in comparison to normal ambient air is set and maintained in the spatial atmosphere of an enclosed room (2). To this end, the inerting system (1) comprises a compressor system (3) for compressing an initial gas mixture as well as a gas separation system (10) connected to the compressor system (3). At least a portion of the oxygen contained within the compressed initial gas mixture is separated in the gas separation system (10). The gas separation system (10) is designed to be selectively operated in either a VPSA mode or a PSA mode.

Abstract: The present invention relates to a measure for minimizing an undesired passage of fluid from a first sector (1) to a second sector (2) separated by a non-fluid-tight separation (3), wherein a first pressure (P1-1) prevails in the first sector (1) and a lower second pressure (P2-1) than the first pressure (P1-1) prevails in the second sector (2). An intermediate chamber (4) which separates the two sectors (1, 2) from one another is arranged at the separation (3). A conveyor mechanism (5) is further provided which is designed to convey fluid from the intermediate chamber (4) to the first sector (1) in order to generate a lower pressure in the intermediate chamber (4) than the first pressure (P1-1) prevailing in the first sector (1), wherein the pressure (P4-1) generated in the intermediate chamber (4) is just as high or higher than the second pressure (P2-1) prevailing in the second sector (2).