Abstract: An emergency oxygen system is provided for aircraft passengers. The system includes at least one oxygen mask (2), with a sensor (4) for detecting at least one breathing characteristic value of a passenger using this oxygen mask (2). A control unit (10) individually determines the oxygen requirement of the passenger on account of the detected breathing characteristic value. A dosing device (8) is actuated by the control unit (10). The dosing device (8) supplies an oxygen quantity corresponding to the determined oxygen requirement, to the oxygen mask (2).

Abstract: An aircraft, aircraft system and air fractionization device are provided. The air fractionization device is provided for use on board an aircraft. The air fractionization installation functions according to the principle of pressure swing adsorption and is supplied by the air conditioning and pressurization system with which also the aircraft cabin may be supplied with air.

Abstract: The method serves for operating an air fractionization installation for obtaining oxygen on board an aircraft, with at least two molecular sieve chambers. A part mass flow of the oxygen obtained in the respective adsorbing molecular sieve chamber is supplied for flushing a desorbing molecular sieve chamber. The quantity of the flushing oxygen led to the desorbing molecular sieve chamber is controlled by way of this.

Abstract: A device for enriching air with oxygen in an aircraft, and a method for operating the device provides product gas enrichment with oxygen with minimum requirements. An oxygen measurement apparatus analyzing the product gas flow as well as a throughput sensor are provided in combination with a change-over device. A flow connection to an outlet channel is created in a first switch position, and a flow connection to a consumer conduit exists in a second switch position. A device for producing a change-over signal from the first switch position to the second switch position is provided if the determined oxygen output as a product of the product gas flow and the oxygen concentration has reached or exceeded a predefined threshold value.

Abstract: A method for equipping a personal service unit with passenger oxygen masks includes arranging one or more passenger oxygen masks in an intermediate container ready for use, and then attaching the intermediate container together with the masks located therein within the personal service unit. In this manner, the comparatively lengthy packaging procedure which is difficult to carry out in overhead work, may be effected in a simplified and reproducible manner outside the aircraft.

Abstract: A safety device is provided for a gas distribution system in an airplane, containing at least one pressure regulator (5) between a pressurized gas source (2) and a supply line. Reliability of operation is improved with the provision of a pressure-limiting device (4) with two lines (41, 42) arranged in parallel with two pressure-limiting valves (43, 44, 45, 46) each arranged in the same direction in series. The pressure-limiting device (4) is arranged upstream of the pressure regulator (5).

Abstract: A device for enriching air with oxygen by pressure swing adsorption in a molecular sieve bed provides for the separation of water from the air to be enriched with oxygen. The water separator is arranged directly upstream of the molecular sieve bed (8). The water separator is designed as a cyclone type water separator (5).

Abstract: A gas distribution system in an airplane has improved reliability of operation with a first supply line (7) and a second supply line (9) for pressurized gas connected to a pressurized gas source (2) via a branching site (6) with a second shut-off valve (10). The pressure in the supply lines (7, 9) is determined with a pressure-measuring means (24). An evaluating device (24) for the measured pressure signal is provided for sending a closing signal to the shut-off valve (8, 10) of the supply line (7, 9) in which a pressure drop of consequence occurs.

Abstract: A modular oxygen supply system is provided comprising at least one module skeleton with a baseplate with frames arranged in parallel to one another. The system includes supply lines for ambient air with air connections for taking off the air, first gas lines for oxygen with first gas connections for taking up the oxygen and second gas lines for outgoing air with second gas connections for taking up outgoing air. Rack guides with data lines are provided. At least one individual module can be pushed into the module skeleton. Each individual module has at least one molecular sieve container fastened on a baseplate with the gas connections and with an electric contact. Each individual module has a gas treatment unit for the ambient air fed in. A pressure reducer and a multiple-way valve as well as an oxygen reservoir are arranged downstream of the molecular sieve container or containers connected in parallel.

Abstract: A safety helmet combined with a visor (3) in a detachable connection, which is formed by holding structure located on both sides at the safety helmet shell (2). Wear properties are improved by the holding structure having rigid coupling hooks (10), which are connected to the visor (3), catch openings (11) receiving the coupling hooks (10), and hinges. A visor structure (13) that can be pivoted over the visor (3) is fastened to the hinges (12); and the detachable connection is designed such that the visor structure (13) is connected to the visor (3) in one assembly unit with it when the visor (3) is removed from the safety helmet (1).

Abstract: The invention is directed to an emergency hood to be worn by a person in an environment where there is fire or contamination. The hood closes off the head of the person to the ambient and has an elastic, gas-impermeable ruff extending down to the neck and shoulder region of the wearer. The hood has an interior space for accommodating the head of the wearer and is made of a fire resistant gas-impermeable material and has a transparent visor in the region of the eyes or face of the person and the visor likewise is made of fire resistant, gas-impermeable material. An oxygen supply unit supplies oxygen to the hood for use by the person and a water and carbon dioxide absorbing flexible areal absorber unit is mounted in the interior space.