Abstract: In a method for determining a filling level (F) of waste water (8) in a tank (6) of a vehicle (2), wherein a respective flushing quantity (P) of waste water (8) is fed to the tank (6) by means of flushing processes, a binary filling signal (La-e) (waste water (8) present or not) is determined at at least two measuring positions (20a-e) at the tank (6) with known filling quantities (Ma-e), the filling level (F) is determined as a sum of a basic filling quantity (B) and an inflow quantity (Z), wherein the basic filling quantity (B) is selected as zero or as the greatest filling quantities (Ma-e) of active filling signals (La-e) at a starting time (A), and the inflow quantity (Z) is determined as a sum of all the fed-in flushing quantities (P) from the starting time (A).

Abstract: In a method for determining a filling level (F) of waste water (8) in a tank (6) of a vehicle (2), wherein a respective flushing quantity (P) of waste water (8) is fed to the tank (6) by means of flushing processes, a binary filling signal (La-e) (waste water (8) present or not) is determined at at least two measuring positions (20a-e) at the tank (6) with known filling quantities (Ma-e), the filling level (F) is determined as a sum of a basic filling quantity (B) and an inflow quantity (Z), wherein the basic filling quantity (B) is selected as zero or as the greatest filling quantities (Ma-e) of active filling signals (La-e) at a starting time (A), and the inflow quantity (Z) is determined as a sum of all the fed-in flushing quantities (P) from the starting time (A).

Abstract: The present invention especially relates to a fire protection system (1) with a wetting system (23) which is designed and equipped for the wetting of a predetermined extinguishing volume (11) with extinguishing water, wherein the wetting system (23) is designed and equipped in such a way that in a pure water-gas extinguishing measure within a defined operating envelope the concentration of extinguishing gas in the extinguishing volume remains below the extinguishing concentration.

Abstract: A waste disposal apparatus for an aircraft comprising a basin for receiving liquid and/or solid pollutants, comprising a lid for closing off the basin, comprising a feed arrangement for supplying an air-water mixture, wherein the feed arrangement has an air-water mixing device for providing the air-water mixture and a distributing device for distributing the air-water mixture in the basin, and comprising a lead-off arrangement for leading off the effluent formed from the air-water mixture containing the pollutants, wherein the lead-off arrangement opens out into an outlet from the basin and the lead-off arrangement can be subjected to an underpressure, so that the air-water mixture, when the lid is closed, is sucked into the basin via the distributing device is proposed, wherein the air-water mixing device has an air duct and a nozzle for the dispensing of water and the water can be subjected to an overpressure and wherein the distributing device and the basin are jointly designed such that the water-air mixt

Abstract: The present invention especially relates to a fire protection system (1) with a wetting system (23) which is designed and equipped for the wetting of a predetermined extinguishing volume (11) with extinguishing water, wherein the wetting system (23) is designed and equipped in such a way that in a pure water-gas extinguishing measure within a defined operating envelope the concentration of extinguishing gas in the extinguishing volume remains below the extinguishing concentration.

Abstract: In a method for determining the contamination rate of a pipeline, a pressure value of an internal pressure at a measuring location of the pipeline is determined during a flushing procedure using a flushing medium in the pipelined, and the contamination rate is determined by evaluating the pressure value by means of a test criterion. For the contamination rate of a pipeline system, a contaminated location is additionally determined by evaluating the contamination rates by means of a locating criterion. Corresponding devices contain an interface for the pressure value, and an evaluation unit for determining the contamination rate or of the contaminated location according to the methods mentioned above. A computer program serves for carrying out the above-mentioned methods. A pressure sensor which is operatively connected with an internal pressure of a pipeline is used in one of the above-mentioned methods.

Abstract: A waste disposal apparatus 1 for an aircraft 11 comprising a basin 2 for receiving liquid and/or solid pollutants, comprising a lid 3 for closing off the basin 2, comprising a feed arrangement 8 for supplying an air-water mixture 26, wherein the feed arrangement 8 has an air-water mixing device 15 for providing the air-water mixture 26 and a distributing device 19, 20 for distributing the air-water mixture 26 in the basin 2, and comprising a lead-off arrangement 10 for leading off the effluent formed from the air-water mixture 26 containing the pollutants, wherein the lead-off arrangement 10 opens out into an outlet 21 from the basin 2 and the lead-off arrangement 10 can be subjected to an underpressure, so that the air-water mixture 26, when the lid 3 is closed, is sucked into the basin 2 via the distributing device 19, 20, is proposed, wherein the air-water mixing device 15 has an air duct 13 and a nozzle 14 for the dispensing of water and the water can be subjected to an overpressure and wherein the distri

Abstract: Method for the automated manufacturing of a spatial structure from fibre-reinforced plastic, and device for carrying out such a method The present invention relates in particular to methods for the automated manufacturing of a spatial structure from fibre-reinforced plastic, wherein the structure is constructed successively and in an automated manner from a multiplicity of individual fibre-texture blanks, in that the individual fibre-texture blanks are successively adjoined, and in that a plastic material which forms a matrix for the respective fibre-composite blank is consolidated in situ in a localized manner.

Abstract: A scattered radiation fire detector having radiation sources of different wavelengths and a scattered radiation sensor, which are arranged and formed so that their optical axes are directed at a common centre of a scattering volume. A sensor unit is furthermore formed to register forward scattering I1(?1,fwd) of a first radiation source, forward scattering I2(?2,fwd) of a second radiation source and backward scattering I3(?1,bwd) of a further first radiation source, to calculate scattered radiation intensity quotients Q1=I1(?1,fwd)/I2(?2,fwd), Q2=I1(?1,fwd)/I3(?1,bwd) and Q3=I2(?2,fwd)/I3(?1,bwd) and to detect the existence of a fire situation using the scattered radiation intensity quotients.

Abstract: The invention is directed to a plastic pipe comprising a tubular body adapted for guiding through a fluid having at least one of a liquid and solid phase, the tubular body comprising a pipe wall implemented in solid-material essentially made from at least one of a polyetherketone, polyetherimide, polyphenylene sulfide and polyoxymethylene type plastic material, wherein the plastic pipe comprises at least one attachment flange which is attached and connected to an end-section of the tubular body and comprises at least one outer radial protrusion.

Abstract: A vacuum toilet system comprises a plurality of toilets, a collecting tank, a conduit system that connects the plurality of toilets with the collecting tank, and a vacuum generator that is connected in a fluidic manner to the collecting tank. The conduit system further comprises a main duct and a plurality of branch ducts, via which the plurality of toilets are connected to said main duct and which discharge into the main duct at an acute angle formed with a component that is pointed in a delivery direction in the main duct, wherein the branch ducts describe curved sections adjacent to a respective inflow thereof having a curvature mid-point of a respective mid-line of the curved sections of the branch ducts being located behind a respective inflow point of a center line in the main duct with regard to the delivery direction in said main duct.

Abstract: A vacuum toilet system for a vehicle, notably a passenger aircraft, comprising a plurality of toilets (1), a collecting tank (4), a duct system (3) which connects the toilets (1) with the collecting tank (4) via one flush valve (2) per toilet, a vacuum generator (5) which is connected to the collecting tank (4) in a fluidic manner, a flush water tank (8) and a flush water system (9), which connects the toilets (1) via one flush water valve (10) each and/or via a flush water pump with the flush water tank (8). A flush control (11) which acts on the flush valve (2) and the flush water valve (10) or flush water pump of the individual toilets (1) and can be actuated via an actuating means (12) assigned to the toilet. A standard flush program is stored in said control.

Abstract: Method and apparatus for measuring conditions affecting susceptibility of a surface to ice formation, as for an aircraft. Detection surfaces are provided with cooling and heating elements. At least a portion of a detection surface is cooled below the ambient to cause ice to form. The temperature of ice formation and the time required for ice to build up provide measures of the risk of icing.

Abstract: An apparatus for mixing a first liquid component with at least one additional liquid component. A fluid flow-through measuring device in the form of a gear pulser is connected to a supply line for a first component and generates a number of electrical pulses corresponding to the flow volume. A geared feed pump connected to the supply line for each additional component is driven by an electric stepping motor. A current supply circuit for each stepping motor operates to maintain an adjusted mixing ratio in response to pulses generated by said flowthrough measuring device.

Abstract: An accelerometer having an electromagnetic spring for restraint of an axially movable accelerator mass. The spring comprises at least one magnetic field transverse in direction to that of the mass and at least one conductor in the field, carrying current, for generating a restoring force during relative movement between the field and the conductor, the force being varied by varying the current flow to the conductor. A positive indicator comprises a first winding fixed mechanically to the mass and a second winding fixed to the casing of the accelerometer. The first winding carries a-c and the second winding receives an induced a-c signal with amplitude proportional to the acceleration, its phase position indicating the direction of acceleration.

Abstract: A spring system has an adjustable spring force and includes at least one magnet. The magnet has a magnetic field, and at least one conductor passing direct current is disposed in the magnetic field. The magnet is formed by a number of pole pairs disposed along the path of displacement of the conductor, and each of the pole pairs encloses an air gap; the current-carrying conductor is a wire.