Abstract:
The invention relates to a hydrostatic drive. The hydrostatic drive (1) includes a hydraulic pump (3) and a hydraulic motor (7). The hydraulic pump (3) may be connected by way of a first working line (5) to a first working line connection (8) of the hydraulic motor (7) and by way of a second working line (6) to a second working line connection (9) of the hydraulic motor (7). Furthermore, the hydrostatic drive (1) includes a first storage means (40) for storing pressure energy and a second storage means (41). For recovery of the pressure energy stored in the first storage means, the latter may be connected, at least for one direction of conveying, to a first or second working line (5, 6) which is on the suction side in relation to the hydraulic pump (3) in this direction of conveying.
Abstract:
The invention relates to a hydrostatic drive (1) in an open circuit. The hydrostatic drive (1) comprises a hydraulic pump (2) and a hydraulic motor (3). The hydraulic pump (2) and the hydraulic motor (3) are connected to one another via a feed line (4). In addition, the hydrostatic drive (1) comprises a storage element (18) for storing pressure energy. A first valve device (17) which is arranged downstream of the hydraulic motor (3) alternately connects the downstream connection (9) of the hydraulic motor (3) to a tank volume (15) or to the storage element (18).
Abstract:
The device for production of a monocrystalline or a multicrystalline material blank, especially a silicon multicrystalline blank, using the VGF method has a crucible with a rectangular or square cross section. A flat heating device, especially a jacket heater, which generates an inhomogeneous temperature profile, is arranged around the crucible. This temperature profile corresponds to the temperature gradient formed in the center of the crucible. The heat output of the flat heating device decreases from the top to the bottom end of the crucible. The flat heating device includes parallel heating webs, which extend in a meandering course. The heat outputs from the heating webs differ according to their different conductor cross sections. To avoid local overheating in corner areas of the crucible, constrictions of the cross sections of the heating webs are provided at inversion zones of their meandering course.
Abstract:
A method for producing high-purity, large-volume monocrystals that are especially radiation-resistant and have low intrinsic birefringence. From a melt of crystalline raw material, with controlled cooling and solidification, a crystal is generated. As the crystalline raw material, shards and/or waste from already-grown crystals is used, and the re-used raw material 1) upon visual observation in daylight has no color; and 2) upon illumination with a white-light lamp in a darkroom a) has no or at maximum a just barely perceivable reddish and/or bluish fluorescence; and b) has no or at maximum a just barely perceivable diffuse scattering; and c) has no or only slight discrete scattering of at maximum two visually perceivable scattering centers per dm3. In this way, crystals can be obtained which after tempering have a BSDF value of
Abstract:
Systems and techniques for managing services and applications of a client system, such as an enterprise computer system, reduce the operational workload and optimize daily support process by deliverying embedded services in client system with direct connection of services into a back-end system so that back-end system processes can analyze client system information and provide detailed reports and analyses and with continuous (or regular) data exchange between client system and backend system to ensure efficient client system software processes. The embedded services can include support, operation, change and deploy, and plan and optimize services. The output of at least one of these services can be pushed to and displayed in a graphical user interface. A fact sheet provided with he graphical user interface contains on one page all the information that is needed to clearly show who is responsible for handling information technology problems, incidents, tasks, and service requests.
Abstract:
A device is provided for regulating the thickness of rolling stock in a roller stand. The device includes a control device that controls the roller adjustment of the roller stand as a function of the deviation between a reference thickness value (h*) and an estimated value (h') for the thickness of the rolling stock exiting from the roller stand; a model simulating the rolling process in the roller stand, the model calculating the estimated value (h') on the basis of roller technology parameters and measured values; a thickness measurement device that measures the thickness of the rolling stock after its exit from the roller stand with a measurement delay (T.sub.L) providing a measured thickness value (h.sub.L); a delay device for delaying the estimated value (h') determined by the model by at least approximately the amount of the measurement delay (T.sub.L); a correction device generating a correction value (k) as a function of a deviation (.DELTA.h.sub.L) between the measured thickness value (h.sub.L) and a delayed estimated value (h'.sub.L), the correction value (k) correcting the estimated value (h') provided by the model; a controllable switching device enabling the generation of the correction value (k) to be stopped in time periods during which the thickness measurement device provides no measured thickness values (h.sub.L) or no usable measured thickness values; and a holding device making available during the time periods the correction value (k) last generated for correction of the estimated value (h') provided by the model prior to the generation of the correction value (k) being stopped.
Abstract:
For producing synthesis gas by autothermal reformation of gaseous, liquid and/or solid fuels, the fuel is reacted with an oxidizing agent in a reaction space at a pressure of 10 to 120 bar and a reaction space temperature of 800 to 2,000° C. to obtain synthesis gas, wherein the oxidizing agent is introduced centrally in the upper region of the reaction space and wherein a flame is formed in the reaction space. The oxidizing agent is introduced into the reaction space separate from the fuel.
Abstract:
A method for assembling motor vehicles, in particular personal motor vehicles having a self-supporting shell involves equipping the respective shell of the motor vehicle with a corresponding chassis and equipping the chassis with vehicle wheels at least before an end of a main assembly line has been reached.
Abstract:
Illumination device comprising at least one LED and at least one color converter comprising at least one organic fluorescent colorant in a matrix consisting essentially of polystyrene or polycarbonate, wherein LED and color converter are present in a remote phosphor arrangement.
Abstract:
A floor module for a motor vehicle includes a floor shell, which can be fastened to a shell of the motor vehicle, and equipment with a plurality of variant-specific constructional units arranged on the floor shell. A method for assembling a floor module involves equipping a respective shell of the motor vehicle with a floor module with corresponding chassis and drive train.