Abstract: The invention relates to an electric motor, particularly a spindle motor used for driving storage disks in hard disk drives, having a stationary bearing part (14), a shaft (16) rotatably supported in the stationary bearing part, a hub (18) connected to one end of the shaft and an electromagnetic drive system. The electric motor is characterized in that the hub (18) is at least partly made of a metal alloy having a high specific damping capacity.

Abstract: The invention relates to a fluid dynamic bearing system having pressure-generating surface patterns that comprises at least two bearing parts that are rotatable with respect to one another and form a bearing gap filled with bearing fluid between associated bearing surfaces. The surface patterns are disposed on at least one bearing surface that is defined by a first rim and a second rim, hydrodynamic pressure being built up within the bearing gap on rotation of the bearing parts with respect to one another. According to the invention, at least parts of the surface patterns extend from the first rim to the second rim of the bearing surface.

Abstract: A gear support comprises an elongate carrier portion which is oriented along a longitudinal axis, and a flange portion at one end of the carrier portion. The flange portion serves for fastening the gear support to a case of the gear, and a bearing portion in the region of an opposite end of the carrier portion serves for mounting the gear support on the motor vehicle. The carrier portion has two mutually opposite longitudinal spars, between which ribs extend, the longitudinal spars and the ribs being produced in one piece with one another.

Abstract: The invention relates to a heat exchanger, particularly in tube bundle-type, panel-type or plate-type design. The heat exchanger has a housing inside of which a number of flow channels are formed for a primary flow and a secondary medium, and the housing has a sandwich design.

Abstract: The invention relates to a spindle motor having a fluid dynamic bearing system used particularly for driving the storage disks of hard disk drives, having a baseplate, a stationary bearing bush disposed in an opening in the baseplate, a shaft rotatably supported in an axial bore in the bearing bush by means of the fluid dynamic bearing system, a hub connected to the shaft, and an electromagnetic drive system. In order to increase the stiffness of the motor system, according to the invention the bearing bush is provided with a flange that is fixed in the opening in the baseplate and whose outside diameter is distinctly larger than the outside diameter of the bearing bush. Instead of a flange at the outer diameter of the bearing bush there can be provided a sleeve at the base plate which receives the bearing bush at least partly.

Abstract: A device for measuring the pressure of a gas mixture composed of gas components has an amperometric sensor that works on the limiting current principle, having two electrodes connected to a direct voltage that are situated on a solid electrolyte, of which one electrode is covered by a diffusion barrier, and a measuring element for measuring the limiting current flowing via electrodes as a measure for the gas pressure. For the purpose of error-free measurement of the gas pressure in a gas mixture in which the concentration of the gas components fluctuates with time, means are provided which fix the mole fraction of a gas component, drawn upon for pressure measurement, that is present upstream of the diffusion barrier at a constant 100%, at least during the pressure measuring phase.

Abstract: The present invention is directed to a portable hose cutoff saw having an improved stable base structure comprising a front plate and a back plate, a top plate extending transversely between the front and back plates interconnecting said front and back plates, and at least one connecting member extending transversely between a bottom portion of the front and back plates. The present invention also provides for a portable hose cutoff saw having a plurality of slideably adjustable hose biasing pins that may be adjusted to optimally bias the hose at or about a portion of a hose to be cut by the saw, thereby resulting in a consistent and straight cut of the hose.

Abstract: What is proposed is a gear support for mounting a gear on a motor vehicle, in particular for axle gears, with an elongate carrier portion which is oriented along a longitudinal axis, with a flange portion at one end of the carrier portion, the flange portion serving for fastening the gear support to a case of the gear, and with a bearing portion in the region of an opposite end of the carrier portion, the bearing portion serving for mounting the gear support on the motor vehicle. In this instance, the carrier portion has two mutually opposite longitudinal spars, between which ribs extend, the longitudinal spars and the ribs being produced in one piece with one another.

Abstract: In a CT system and a method for error-tolerant data transfer between a data acquisition unit and an image reconstruction unit therein, digital data are divided into data packets and are transferred as a data stream from a transmission device to a reception device and are buffered in the reception device for further processing. The data packets are selected such that they respectively contain the data of a segment of a detector row or of a complete detector row of the CT system. Incomplete and/or missing focal paths are detected in the reception device and a storage region is reserved and marked as incorrect for these data packets. The incorrect and/or missing data packets are later interpolated from the data of adjacent detector rows and/or adjacent segments of a detector row and/or successive projections precede or follow the incorrect and/or missing data packets. Missing data packets due to transfer interferences can also be tolerated.

Abstract: A method and a device are provided for controlling an exhaust gas aftertreatment system, for example, an exhaust gas aftertreatment system of an internal combustion engine. A first quantity characterizing the amount of substances supplied to the exhaust gas aftertreatment system, based on first characteristic operating quantities, is determined in a first operating state. A second quantity characterizing the amount of substances removed from the exhaust gas aftertreatment system, based on second characteristic operating quantities, is determined in a second operating state. The first quantity and the second quantity are then compared for error detection.

Abstract: In a method for replacing technologically aging sub-systems and software in a system of which the sub-systems are components, a data bank is maintained by a service provider for each customer. In the data bank, the sub-system currently installed at the customer is indicated. Before replacing a part of a sub-system, the data bank is interrogated to determine whether, dependent on the age class of the sub-system, the entire sub-system should be replaced. If so, replacement of the entire sub-system is undertaken, and the data bank is updated. Similarly, before upgrading software for a customer's sub-system, the data bank is interrogated to determine whether replacement of the sub-system is required, given the age class of the sub-system. If so, the sub-system is replaced and software appropriate for the replaced sub-system is then installed.

Abstract: An outrigger assembly for support of a mobile crane or excavator upon the ground, includes a plurality of outriggers mounted to a vehicle frame and having free ends, wherein each of the outriggers has a ground-engaging pad connected to the free ends for vertical movement in relation to the ground. Each of the outriggers has at least one outrigger arm unit movable with respect to the vehicle frame between an idle position suitable for travel between sites, and an operative position suitable for support on the ground, wherein the outrigger arm unit includes an outrigger arm made of a hollow profile which has a lower part of U-shaped configuration and an upper part of calotte-shaped configuration.

Abstract: A method for preserving wood that includes impregnating the wood with a wood preservative agent based on one or more compounds of at least one metal of the 1st and/or 2nd subgroups of the periodic system and fixing the metal(s) for purposes of reducing the danger of leaching. The wood is (i) impregnated with a preservative containing a water-soluble zinc compound or (ii) wood that has already been impregnated with a zinc-free preservative or one that contains at least one metal compound of the 1st and/or 2nd subgroups is impregnated with a second preservative that contains at least one water-soluble zinc compound, and wood impregnated in accordance with (i) or (ii) is impregnated with an aqueous solution of a salt of trimercapto-s-triazine (TMT), dithiocarbamate or trithiocarbonate.

Abstract: A method and a device are described for controlling an exhaust gas aftertreatment system, in particular for an internal combustion engine. A first quantity (SIMP), based on first characteristic operating quantities, which characterizes the amount of substances supplied to the exhaust gas aftertreatment system is determined in a first operating state. A second quantity (SIMR), based on second characteristic operating quantities, which characterizes the amount of substances removed from the exhaust gas aftertreatment system is determined in a second operating state. The first quantity and the second quantity are compared for error detection.

Abstract: An outrigger assembly for support of a mobile crane or excavator upon the ground, includes a plurality of outriggers mounted to a vehicle frame and having free ends, wherein each of the outriggers has a ground-engaging pad connected to the free ends for vertical movement in relation to the ground. Each of the outriggers has at least one outrigger arm unit movable with respect to the vehicle frame between an idle position suitable for travel between sites, and an operative position suitable for support on the ground, wherein the outrigger arm unit includes an outrigger arm made of a hollow profile which has a lower part of U-shaped configuration and an upper part of calotte-shaped configuration.

Abstract: A method for preserving wood that includes impregnating the wood with a wood preservative agent based on one or more compounds of at least one metal of the 1st and/or 2nd subgroups of the periodic system and fixing the metal(s) for purposes of reducing the danger of leaching. The wood is (i) impregnated with a preservative containing a water-soluble zinc compound or (ii) wood that has already been impregnated with a zinc-free preservative or one that contains at least one metal compound of the 1st and/or 2nd subgroups is impregnated with a second preservative that contains at least one water-soluble zinc compound, and wood impregnated in accordance with (i) or (ii) is impregnated with an aqueous solution of a salt of trimercapto-s-triazine (TMT), dithiocarbamate or trithiocarbonate.

Abstract: In a heat exchanger used especially as an exhaust heat exchanger, provision is made for tube sheets, the tubes of a tube bundle, and a housing to be shaped from stainless steel sheets. The tube sheets are formed as deep-drawn and stamped parts, each of which has a circumferential wall that projects outward beyond the ends of the tubes in the tube bundle. The walls are welded to the housing, and each of the walls is abutted by a diffuser.

Abstract: A device for exhaust recycling for an internal combustion engine with an exhaust cooler has a valve that determines the quantity of exhaust that is recycled and is adjustable by an adjusting element. Provision is made for the exhaust cooler and the valve to connect to one another directly and to form a module.

Abstract: The present invention relates to a method for the development of a protective oxide on the surface of porous, positive Mi-electrodes for galvanic cells with alkaline electrolyte.