Abstract: A compressor wheel for a compressor of a turbocharger has a hub and a multiplicity of blades on the hub. In intermediate spaces of the multiplicity of blades, a channel is in each case formed between a suction side and a pressure side. The channel guides fluid that flows in axially in relation to a rotation axis radially or radially-axially outward. The hub in relation to the rotation axis is contoured such that the hub has a rotationally symmetrical portion and a non-rotationally symmetrical portion. On the non-rotationally symmetrical portion, a transition between the hub and each of the blades is embodied with a radiused connection and facing the suction side has a region of modified thickness. A region formed by control rays is generated in at least one channel between the suction side and the pressure side on the hub. A method produces the compressor wheel.

Abstract: A compressor wheel for a compressor of a turbocharger has a hub and a multiplicity of blades on the hub. In intermediate spaces of the multiplicity of blades, a channel is in each case formed between a suction side and a pressure side. The channel guides fluid that flows in axially in relation to a rotation axis radially or radially-axially outward. The hub in relation to the rotation axis is contoured such that the hub has a rotationally symmetrical portion and a non-rotationally symmetrical portion. On the non-rotationally symmetrical portion, a transition between the hub and each of the blades is embodied with a radiused connection and facing the suction side has a region of modified thickness. A region formed by control rays is generated in at least one channel between the suction side and the pressure side on the hub. A method produces the compressor wheel.

Abstract: A voltage converter of a high voltage driver generates a high voltage applied to an electrorheological damper. The voltage converter and the electrorheological damper are electrically connected together through a connecting portion. The connecting portion comprises an electrode pin that connects the voltage converter and an electrode cylinder of the electrorheological damper; a ground pin that connects an external cylinder of the electrorheological damper and ground, and a ground detection pin disposed separately from the ground pin and connected to the ground through the external cylinder and the ground pin. When the ground detection pin and the ground are disconnected, the voltage converter discontinues the voltage generation with or without a command (control signal) of a sub-controller.

Abstract: A flyback converter having a transformer that includes a primary coil connected to the input terminal and a secondary coil, a semiconductor switch configured to switch current flow through the primary coil, a first measurement unit configured to measure the DC input voltage, and a second measurement unit configured to measure a voltage across the semiconductor switch. The flyback converter also includes a control unit having a synchronization terminal and configured to output a switching signal to the semiconductor switch with a constant frequency in accordance with a synchronization signal input to the synchronization terminal. In addition, the flyback converter includes a frequency adjustment unit configured to transmit a synchronization signal to the synchronization terminal based on the DC input voltage and the voltage measured by the second measurement unit such that the frequency of the switching signal output from the control unit becomes variable.

Abstract: A voltage converter of a high voltage driver generates a high voltage applied to an electrorheological damper. The voltage converter and the electrorheological damper are electrically connected together through a connecting portion. The connecting portion comprises an electrode pin that connects the voltage converter and an electrode cylinder of the electrorheological damper; a ground pin that connects an external cylinder of the electrorheological damper and ground, and a ground detection pin disposed separately from the ground pin and connected to the ground through the external cylinder and the ground pin. When the ground detection pin and the ground are disconnected, the voltage converter discontinues the voltage generation with or without a command (control signal) of a sub-controller.

Abstract: A flyback converter having a transformer that includes a primary coil connected to the input terminal and a secondary coil, a semiconductor switch configured to switch current flow through the primary coil, a first measurement unit configured to measure the DC input voltage, and a second measurement unit configured to measure a voltage across the semiconductor switch. The flyback converter also includes a control unit having a synchronization terminal and configured to output a switching signal to the semiconductor switch with a constant frequency in accordance with a synchronization signal input to the synchronization terminal. In addition, the flyback converter includes a frequency adjustment unit configured to transmit a synchronization signal to the synchronization terminal based on the DC input voltage and the voltage measured by the second measurement unit such that the frequency of the switching signal output from the control unit becomes variable.

Abstract: The invention relates to a process for producing fiber-reinforced flat semifinished products based on a polyamide matrix, comprising the following steps: (a) saturation of textile structures with a mixture comprising molten lactam, catalyst, and optionally activator, (b) cooling of the saturated textile structures, and (c) finishing of the cooled textile structures to give the fiber-reinforced flat semifinished product. The invention further relates to a process for producing a component made of the fiber-reinforced flat semifinished product.

Abstract: The invention relates to a process for producing fiber-reinforced flat semifinished products (3) based on a polyamide matrix, comprising the following steps: (a) saturation of textile structures (15) with a mixture comprising molten lactam, catalyst, and optionally activator, (b) cooling of the saturated textile structures (25), and (c) finishing of the cooled textile structures to give the fiber-reinforced flat semifinished product (3). The invention further relates to a process for producing a component made of the fiber-reinforced flat semifinished product.

Abstract: A titanium alloy which, even under the influence of high application temperatures, has a low tendency to becoming brittle as a result of coarse grain formation, comprises (in wt. %) Fe: ?2%, Si: 0.01 to 0.8%, 0: ?0.3%, C: ?0.1%, one or more elements of the Lanthanide group at total levels of 0.01-2% and, optionally, one or more elements of Al and O at total levels of a maximum of 1%, one or more elements of Mo, Ta, Nb, Zr, Mn, Cr, Co, Ni, Cu, V, Si, and H at total levels of a maximum of 3%, the remainder being titanium and unavoidable impurities.

Abstract: A programmable controller having self-diagnosis unit 60 (70) for self-diagnosis, wherein the self-diagnosis unit 60 (70) comprises data storage unit 61 (71) for storing data pertaining to an inspection unit for which the inspection is completed, and inspection start unit 62 (72) for starting the inspection from the next inspection unit of the inspection unit for which the inspection is already completed at the time before the power is turned on, when performing a self-diagnosis that occurs after the power is turned on, based on the data stored in the data storage unit 61 (71).

Abstract: An automation system includes at least one automation object, with a directory for storing object names of the at least one automation object. An object name is assigned a directory entry which includes first information data as a reference to the automation object; second information data as a description of technological functionality; and third information data as a description of interfaces of the automation object. This results in immediate and permanent access to currently created (partial) solutions, so that parallel and/or distributed working on automation objects is possible.

Abstract: The invention relates to a device for adjusting the configuration of a modular prosthetic leg, the leg prosthesis having a foot section, a lower leg section and a knee joint, and the knee joint being disposed via a lower part on the lower leg section and an upper part being joined in an articulated manner with the lower part, having a frame and at least one fixing device disposed on the frame for fixing the foot section and the knee joint, an adjustable bracket for a thigh shaft being attached to the frame and holding a thigh shaft that is attached to the upper part of the prosthesis in its orientation with respect to the knee joint.

Abstract: The invention relates to a titanium alloy which, even under the influence of high application temperatures, has a low tendency to becoming brittle as a result of coarse grain formation. The titanium alloy thus comprises (in wt. %) Fe:=2%, Si:0.1=0.8%, O:=0.3%, C:=0.1%, one or more elements of the Lanthanide group at total levels of 0.01-2% and, optionally, one or more elements from the group Al, O at total levels of a maximum of 1%, one or more elements from the group Mo, Ta, Nb, Zr, Mn, Cr, Co, Ni, Cu, V, Si, or H at total levels of a maximum of 3%, the remainder being titanium and unavoidable impurities.

Abstract: The invention relates to a method for the automatic retrieval of engineering data from installations. The engineering and runtime objects are described by a uniform object model. This allows the correspondence between engineering objects and runtime objects to be determined at object level and no information is lost as a result of the mapping. In addition, a direct communication between engineering and runtime objects can take place, which can be utilized when the method is carried out.

Abstract: A programmable controller having self-diagnosis unit 60 (70) for self-diagnosis, wherein the self-diagnosis unit 60 (70) comprises data storage unit 61 (71) for storing data pertaining to an inspection unit for which the inspection is completed, and inspection start unit 62 (72) for starting the inspection from the next inspection unit of the inspection unit for which the inspection is already completed at the time before the power is turned on, when performing a self-diagnosis that occurs after the power is turned on, based on the data stored in the data storage unit 61 (71).

Abstract: A safety-oriented control system with a plurality of decentralized stations is disclosed. The safety-oriented control system is provided with inputs and outputs and at least one centralized station exchanging information with each other via a bus line, wherein at least one of the decentralized stations has independent devices for fault-tolerating and/or fault-controlling self-monitoring to ensure normal operation for linkage and evaluation of signals located at the inputs and outputs of this station or further stations, and devices for processing of the signals and for generation of independent control commands.

Abstract: The present invention relates to an automation system with at least one automation module (1), which has at least one automation object (A1-An), and with function modules (F1-F6), which contain means for central management and maintenance of the automation objects (A1-An). As a result, a manufacturer-independent definition of new automation objects, possibly using already existing automation objects, becomes possible, costly separate programming of new automation solutions is no longer necessary at all or is at least significantly simplified.

Abstract: Subject of the invention is a serial bus system with two data lines (10, 12), connected at one end to a central bus subscriber (14) and to an active bus subscriber at the other end (16). The central and the active bus subscriber transmits status messages over the bus (10, 12) whose bus lines are physically passed through in the bus subscribers (18, 20) between the two ends. In case of missing status messages or error in the status messages, the central bus subscriber (14) brings the bus system into a fail-safe state.

Abstract: The present invention relates to an automation system with at least one automation module (1), which has at least one automation object (A1-An), and with function modules (F1-F6), which contain means for central management and maintenance of the automation objects (A1-An). As a result, a manufacturer-independent definition of new automation objects, possibly using already existing automation objects, becomes possible, costly separate programming of new automation solutions is no longer necessary at all or is at least significantly simplified.

Abstract: A gas compressor includes a compression chamber, an outlet valve, and a shuttle valve which disables the outlet valve when it is connected to an atmospheric pressure relief chamber in idle operation. A throttle line circumventing the shuttle valve is provided which permits by-passed flow between the compression chamber and the atmospheric pressure relief chamber in idle operation, thereby preventing deposits and moisture condensation in the downstream flow path to the pressure relief chamber due to the disabling of the outlet valve, which might otherwise lead to possible operational malfunctions. Compressed-air systems employed in the automotive industry represent an important area of application for the invention.