摘要:
The description relates to an abrasion-resistant carrier catalyst for removing the nitrite and/or nitrate content of polluted water with selective nitrogen formation. The catalytically active metal component is palladium and/or rhodium or palladium and a metal from the copper group. The carrier consists of aluminum oxide in the "theta" and "kappa" modification and has either one maximum pore diameter in the 70 to 150 nm (700 to 1500 .ANG.) range or two maxima in the 10 to 150 nm (100 to 1500 .ANG.) range. The description also relates to a continuously operable process for the removal or reduction of the oxygen, nitrite and/or nitrate content of water by catalytic hydrogenation. The process is implemented using the novel carrier catalysts, the carriers being made of aluminum oxide of the theta and kappa modifications. Contamination of the catalyst is effectively prevented by the preferred use according to the fluidized bed process.
摘要:
In a process for the catalytic treatment of aqueous liquids containing germs, for example, for the catalytic removal of oxygen, nitrite or nitrate in drinking, culinary or waste water, the germ contamination of a catalysts which are used can be prevented when the process is carried out in the fluidized bed.
摘要:
The invention relates to a method of introducing hydrogen into aqueous liquids without forming bubbles.In this case, the introduction of the gas takes place through a composite membrane with a non-porous coating on the liquid side. Preferred fields of use relate to the charging of hydrogen into biologically or catalytically operating processes for the removal of oxygen, nitrite and/or nitrate from water.
摘要:
The invention relates to a sensor device and a method for detecting an external impact load on a vehicle (12), especially in the event of a collision with a pedestrian. Said sensor device comprises a sensor line (14) which reacts to a mechanical deformation, a carrier body (16) for receiving the sensor line (14), and a measuring unit (20) which co-operates with the sensor line (14) and is used to provide an impact signal. Said carrier body (16) has a deformation structure (18) engaging with the sensor line (14), for varying the transmission of pressure force in certain sections.
摘要:
Previously in a bus system, voltage signals were transmitted from the central unit to the modules, which could reply thereto by variation of the current input. A disadvantage thereby is the relatively high susceptibility to interference of the current input, which itself already must be kept relatively small due to the energy consumption, as well as the correspondingly high effort and expense for an error-free recognition of the signals transmitted from the modules in the central unit. It is now suggested, that the modules also answer to the central unit by means of voltage signals superposed on the direct supply voltage, whereby for the time duration of the signal transmission by the modules, the central unit provides the direct supply voltage to the bus line over a resistor, so that the voltage signal of the module can be detected in the central unit on the bus line on the side of the resistor facing away from the direct supply voltage. A preferred application for bus systems in motor vehicles, especially for a sensor data bus, is provided.
摘要:
An unintended triggering of a safety device, such as an airbag in an occupant protection system, especially in motor vehicles is prevented by storing already during manufacturing of the module or modules, a blocking information in a memory location of the module or modules. The blocking information is preferably temporarily stored in place of a rated information, which is then overwritten when the module has been installed in the protection system for activating the system. In addition, the module is protected against electromagnetic and/or electrostatic disturbances at the input to the bus system.
摘要:
A plug-and-socket connector having a conductor track structure provided with electrical components, and a method of producing the same.Known plug-and-socket connectors in which a conductor track structure is formed from a metal band can only be embodied with a space-saving design at high cost, and nevertheless have a large structural height. It is very costly to provide such a plug-and-socket connector with components for realizing electrical functions. A design that saves more space, and a smaller structural height, are possible with a plug-and-socket connector having a conductor track structure that is planar and has a window-shaped opening, which is adjoined perpendicularly in one direction by a plug region that receives both the first plug and the second plug inserted from the opposite direction through the window-shaped opening of the conductor track structure. Pin-like tongues are bent, as connecting pins, into the plug region and preferably fixed, with the bent connecting pins and the conductor track structure, by a plastic injection-molded part. Socket contacts for pin-shaped contacting elements at the plugs are disposed in the plug region in insulation chambers and connected to the conductor track structure. Application of such a plug-and-socket connector for an ignition device of airbag systems in motor vehicles.
摘要:
A device which guarantees reliable real-time operation of the restraint system and offers each occupant of the vehicle individually the greatest possible protection includes the fact that data processing units are provided, all having the same design and each being capable of controlling multiple restraint devices and can decide independently of other data processing units whether the restraint devices assigned to it are to be deployed.
摘要:
A method for having the control unit access the measured data of individual sensors flexibly over time, and includes providing for the control unit to transmit a request message to the sensors, and having each sensor, by comparing the request message with its own address, derive whether and in what time slot, it should transmit its measured data to the control unit.
摘要:
An arrangement for generating digital signals on first and second bus lines is tolerant of most line faults, and includes modules connected to both lines, an upper switch between a first potential and the first line, a middle switch between the two lines, and a lower switch between the second line and a second potential lower than the first potential. The switches are controlled to generate digital signals as the potential difference between the two lines. If a fault potential (e.g. a short to ground or other potential) arises on one line, then the switches drive the non-faulty line to provide the required signals relative to the fault potential on the faulty line. Closing the middle switch ensures that the two lines are at the same potential for a low signal. This arrangement is for is signaling in various bus systems, e.g. in vehicle occupant protection systems in motor vehicles.