Abstract: The invention relates to a process and an apparatus for obtaining a high-hydrogen, low-carbon-monoxide gas which is suitable for feeding low-temperature fuel cells in electric vehicles. A high-hydrogen gas mixture is generated by means of a methanol reforming reaction, using a Cu- and ZrO-containing catalyst material. The carbon monoxide content of the gas is decreased to a concentration of less than approximately 100 ppm by means of a selective methanization using a Ru- and TiO.sub.2 -containing catalyst material and/or by means of a selective oxidation using a Pt- and TiO.sub.2 -containing catalyst material.

Abstract: In a fuel injector for a fuel injection system of an internal combustion engine including an injector housing with an injection nozzle controlled by a valve needle extending through a cylindrical fuel pressure space from which fuel under pressure is supplied to the fuel injection nozzle, the fuel pressure space includes a flow limiting piston with a seating surface at its end adjacent the needle tip and the injector housing has a valve seat disposed opposite the piston seating surface for blocking fuel flow to the injector nozzle when the flow limiting piston is seated on the valve seat and the flow limiting piston is spring-biased away from the valve seat with a force which is sufficient to normally hold the flow limiting piston away from the valve seat, but which permits closing of the valve when the fuel flow to the injector nozzle becomes excessive.

Abstract: Door entry area for a motor vehicle has a cover for a cable duct and a door entry rail joined by metal clamps with a sill flange lengthwise member. The cover for the cable duct has a strip-shaped projection that overlaps the sill flange by force and in a sealing fashion, and the door entry rail is designed as a T-section that has a central retaining member and two shaped legs that project approximately horizontally in the assembled state, with the retaining rib being lockable by means of a latching connection accessible for disassembly in a receiving groove of the cover that abuts the projection and runs along the sill flange.

Abstract: An ergonomically shaped exterior contour of a vehicle interior handle area, support area, or resting area is provided. The contour is formed by a flexible shaped element filled with an electro-rheologic fluid to which an electrical circuit operable from the interior is connected to reduce or increase the internal friction of the fluid to accommodate changes in shape of the contour.

Abstract: In a rear view mirror for a motor vehicle with a housing connected with an air source, traversed by air guide channels, and holding a mirror glass, with the outlets of the channels being arranged along the edge of the mirror glass to allow air to escape opposite to the direction of forward travel of the vehicle, modified guidance and processing of the escaping air reduces the danger of contamination of the mirror glass by the wind blast as well contamination of the side window associated with the mirror. This is also intended to improve the flow resistance of the mirror as well as its noise behavior. For this purpose, a plurality of separate air channel outlets is provided that are located within a guiding device and/or are equipped with one that produces vorticized air streams that emerge and are stable at each of the air outlets.

Abstract: A process for operating a motor vehicle air conditioner, which contains a refrigerant circulating system with a compressor and an evaporator. The compressor is deactivated to protect against an insufficient amount of refrigerant being supplied to the compressor when the refrigerant pressure on the high-pressure side of the refrigerant circulating system falls below a definable value. The deactivation to protect against inadequate refrigerant levels is suppressed as long as the temperature of the motor vehicle engine coolant (which is utilized to heat an air flow blown by the air conditioner into the vehicle interior), is below a definable coolant temperature deactivation threshold value and the evaporator temperature is above a definable first evaporator temperature deactivation threshold value. The process can also be used to reduce the tendency of the vehicle's windows to fog up.

Abstract: An electric powered vehicle includes a traction motor powered from a source of switched DC power. The motor includes a tachometer for measuring the rotational velocity of the motor and for providing a tachometer signal indicative thereof. A low pass filter low pass filters the tachometer signal and produces a reference tachometer signal. A summing circuit combines the tachometer signal and the reference tachometer signal to produce a deviation signal. The deviation signal is provided to a signal processing circuit which includes a comparator and a reference value generator. The comparator compares the output of the summing circuit to a reference value provided by the reference value generator and produces a binary changing signal as a function of the comparison.

Abstract: Connectors for joining protective ducts and/or hoses for the installation of insulated electrical conductors and/or cables in an aircraft are equipped with lids that are easily opened even without a tool. The lids are preferably permanently secured to the connectors. The lids are constructed as roll-up tapes or as a flat or curved plates. The curved plates are held in place in the closed condition by springs. A flat plate lid is held in place, for example by a circlip, or by a leg spring or by a hinge.

Abstract: A vehicle seat has an upholstery which is integrated in both eat part and in the backrest. A ventilation layer is provided through which air can flow, and an air-permeable upholstery cover spans the surface facing the sitting person, as well as having devices for ventilating the ventilation layer. For improving the sitting climate comfort, which also includes a rapidly effective cooling of the seat surfaces heated by sun radiation when the vehicle is entered and the removal of the transpiration moisture, and also for avoiding disturbing air connection hoses between the vehicle seat and the air-conditioner, the ventilation layer is arranged on an upholstery layer. Devices for ventilating the ventilation layer have a plurality of electrically driven miniature fans integrated in the upholstery layer. One miniature fan respectively is arranged in an air duct penetrating the upholstery layer from the underside to the ventilation layer.

Abstract: A controlled, saturated high frequency power amplifier, which can be used especially as a transmitting amplifier in a T/R module for a phase-controlled (radar) antenna for the X-band (8 GHz to 12 GHz). In this case, a portion of the HF output signal is utilized to generate a control signal, with which the output power is controlled nearly without loss via at least one gate connection for the HF power amplifier components, preferably, field effect transistors, that are components of the power amplifier. The power amplifier thus has a high degree of transmitting effectiveness, even with a pulsed transmitting operation.

Abstract: An air bag curtain, particularly for a vehicle window, comprises several tube-shaped chambers which are arranged side-by-side. The chambers are spaced from one another and can be filled with gas and have a largely circular cross-section after being filled with gas. In the effective gas-filled position, the air bag curtain extends between two lateral fastening points. The chambers, which are crossed by a tension line connecting the two fastening points with one another, are constructed with a bulge in the crossing area which results in the oval cross-section being oriented approximately in the direction of the tension line.

Abstract: A wall structure for fuel-cooled engine walls, with a cooling structure having an inner wall to which hot gas is admitted; an outer wall located at a spaced location therefrom; as well as a plurality of webs, which connect the two walls and divide the intermediate space between the walls into cooling channels (19), and with a support structure in the form of at least one stable outer jacket. The cooling structure is slotted from the outside in the area of each web, wherein the slots (22) pass through the outer walls and the centers of the webs into the area of the inner wall. The support structure is designed as an elastically nonrigid support structure at least in the area joining the cooling structure and/or is located at a spaced location from the cooling structure.

Abstract: In a vehicle operating pedal unit, which may include clutch and brake pedals, mounted on a front wall of a vehicle passenger compartment and including a pedal support structure on which the pedals are pivotally supported by bolts, the pedal support structure includes a portion which extends upwardly so as to be disposed on top of a transverse frame member to which it is mounted and which is sufficiently strong to withstand forces to which a brake unit mounted on the opposite side of the front wall may be subjected during a crash. At least the brake pedal has an extension projection to a point adjacent the transverse frame member to prevent the brake pedal from being tilted by a brake operating rod into the leg room of the vehicle if the brake unit and the operating rod are pushed inwardly during a crash.

Abstract: A method for regulating the full-load injection quantity of a diesel internal combustion engine having a fixed steady state full-load injection quantity includes the following phases: a first transient phase, in which the full-load injection quantity is increased to a value which exceeds the steady state full-load injection quantity; a second time-limited phase, in which the full-load injection quantity is maintained at the excess level and, at the end of this phase, is reduced to the full-load injection quantity in the steady state; and a third phase, in which the full-load injection quantity in the steady state is supplied to the diesel internal combustion engine in a known way.

Abstract: In a hydraulic power steering for a motor vehicle with a hydraulic servomotor and a servovalve arrangement in communication with opposite servomotor actuating chambers by way of separate communication conduits through which the actuating chambers can be pressurized or depressurized for the operation of the servomotor depending on a force applied by an operator to a steering means, the communication conduits include valve arrangements permitting, when they are open, the release of hydraulic fluid from the actuating chambers but blocking the release of hydraulic fluid when they are closed thereby hydraulically locking the power steering.

Abstract: A method for controlling a compressor of a motor vehicle air conditioner that is designed for variable power draw and is driveable by the vehicle drive. The power draw of the compressor is subject to an upper limit that is set variably as a function of the difference between the maximum drive torque that the vehicle drive can deliver and the drive torque that is required to drive the vehicle. During a vehicle acceleration maneuver, the air conditioning power of the air conditioner is reduced only to the degree required to reach the desired acceleration.