Abstract: The present application relates to a power supply arrangement comprising a power source and a switching arrangement. The switching arrangement includes a switching block, wherein the switching block includes a source interface for connecting the power source, a load interface for connecting a load and a grid interface for connecting a power grid. The switching arrangement includes further a controller for controlling the switching block in dependency of the condition of the power source. The switching arrangement is implemented as a unit separate from the power source. The power supply arrangement comprises further a monitoring device for monitoring the condition of the power source.

Abstract: The present application relates to a power supply arrangement comprising a power source and a switching arrangement. The switching arrangement includes a switching block, wherein the switching block includes a source interface for connecting the power source, a load interface for connecting a load and a grid interface for connecting a power grid. The switching arrangement includes further a controller for controlling the switching block in dependency of the condition of the power source. The switching arrangement is implemented as a unit separate from the power source. The power supply arrangement comprises further a monitoring device for monitoring the condition of the power source.

Abstract: A heat exchanger (5) includes a housing (31), which contains a tube (32) and has a jacket (33), which surrounds the tube (32) while forming a ring channel (34). A primary inlet (35) and a primary outlet (36) are connected to one another fluidically via a primary path (37) carrying a primary medium through ring channel (34) and via a bypass path (38) carrying the primary medium through the tube (32). A control device (39) controls the flow of the primary medium through the primary path (37) and the bypass path (38). A secondary inlet (42) and a secondary outlet (43) are connected to one another fluidically via at least two secondary paths (44) for carrying a secondary medium. The primary path (37) is coupled with the secondary paths (44) in a heat-transferring manner with the media separated from one another.

Abstract: A heat exchanger (5) includes a housing (31), which contains a tube (32) and has a jacket (33), which surrounds the tube (32) while forming a ring channel (34). A primary inlet (35) and a primary outlet (36) are fluidically connected with one another via a primary path (37) carrying a primary medium through the ring channel (34) and via a bypass path (38) carrying the primary medium through the tube (32). A control (39) controls the flow of the primary medium through the primary path (37) and through the bypass path (38). At least two secondary inlets (42) and two secondary outlets (43) are fluidically connected with one another via at least two secondary paths (44) for carrying at least one secondary medium. The primary path (37) is coupled with the secondary paths (44) in a heat-transferring manner and such that the media are separated from one another.

Abstract: A heat exchanger (28) has a first inlet (29) and a first outlet (30), which are fluidically connected with one another via a first path (31) carrying for a first medium to be cooled. A second inlet (32) and a second outlet (33) are fluidically connected with one another via a second path (34) carrying a second medium. A third inlet (35) and a third outlet (36) are fluidically connected with one another via a third path (37) carrying a third medium. The first path (31) is coupled with the second path (34) and with the third path (37) in a heat-transferring manner and in such as way that the media are separated. The heat-transferring coupling between the first path and the second path takes place upstream of the heat-transferring coupling between the first path and the third path relative to the direction of flow of the first medium.

Abstract: A heat exchanger (18) is provided for an internal combustion engine (1) for heat transfer between a gas stream (8) and a working medium stream (10). The heat exchanger (18) comprises a housing (28), which encloses a gas path (38), and with at least one spiral tube (29), which carries a working medium path (30) and which is arranged in the gas path (38) and which extends helically in relation to the central longitudinal axis (31) of the housing (28). Increased fatigue strength is achieved with an elastic outer mounting layer (32). The elastic outer mounting layer (32) is arranged between the housing (28) and the at least one spiral tube (29).

Abstract: A heat exchanger (28) has a first inlet (29) and a first outlet (30), which are fluidically connected with one another via a first path (31) carrying for a first medium to be cooled. A second inlet (32) and a second outlet (33) are fluidically connected with one another via a second path (34) carrying a second medium. A third inlet (35) and a third outlet (36) are fluidically connected with one another via a third path (37) carrying a third medium. The first path (31) is coupled with the second path (34) and with the third path (37) in a heat-transferring manner and in such as way that the media are separated. The heat-transferring coupling between the first path and the second path takes place upstream of the heat-transferring coupling between the first path and the third path relative to the direction of flow of the first medium.

Abstract: A heat exchanger (5) includes a housing (31), which contains a tube (32) and has a jacket (33), which surrounds the tube (32) while forming a ring channel (34). A primary inlet (35) and a primary outlet (36) are connected to one another fluidically via a primary path (37) carrying a primary medium through ring channel (34) and via a bypass path (38) carrying the primary medium through the tube (32). A control device (39) controls the flow of the primary medium through the primary path (37) and the bypass path (38). A secondary inlet (42) and a secondary outlet (43) are connected to one another fluidically via at least two secondary paths (44) for carrying a secondary medium. The primary path (37) is coupled with the secondary paths (44) in a heat-transferring manner with the media separated from one another.

Abstract: A heat exchanger (5) includes a housing (31), which contains a tube (32) and has a jacket (33), which surrounds the tube (32) while forming a ring channel (34). A primary inlet (35) and a primary outlet (36) are fluidically connected with one another via a primary path (37) carrying a primary medium through the ring channel (34) and via a bypass path (38) carrying the primary medium through the tube (32). A control (39) controls the flow of the primary medium through the primary path (37) and through the bypass path (38). At least two secondary inlets (42) and two secondary outlets (43) are fluidically connected with one another via at least two secondary paths (44) for carrying at least one secondary medium. The primary path (37) is coupled with the secondary paths (44) in a heat-transferring manner and such that the media are separated from one another.

Abstract: The invention relates to a workpiece irradiation system which has several individually adjustable deflecting devices, and in which several spatially mutually separated individual processing beam pencils are respectively deflected separately, by means of the deflecting devices arranged in the optical beam path, to at least one workpiece to be irradiated, to variable points or surfaces on the workpiece.

Abstract: A material irradiation apparatus with a beam source produces a processing beam. The apparatus has a beam splitting device following the beam source, by which the processing beam is divided into several partial beams. Each partial beam can be deflected by a deflecting device discretely associated with it to different places on at least one workpiece to be processed, independently of the other partial beams. The workpiece to be processed is situated on a workpiece movement device that is movable in at least one axis. The machining beam is successively incident on a plurality of beam splitter devices that are movably arranged in the axis of the machining beam that is incident on them. The partial beams emerging from the beam splitter devices are simultaneously incident on the workpiece movement device. The workpiece movement device is arranged to be movable in at least one coordinate direction that deviates from the movement axis of the beam splitter devices.

Abstract: An optical arrangement includes several separate individual beams that pass through a common focus before a first segmented mirror field and, after reflection by respective separate mirrors of the segmented mirror field, the individual beams are imaged by an objective on one or more workpieces. A second segmented mirror field is arranged between the first segmented mirror field and the object, or at least one beam splitter is arranged after the focus and deflects the individual beams onto at least one segmented mirror field, by which they are reflected back at least nearly identically on themselves.

Abstract: The invention is directed to a zoom device which is built up of several lenses wherein at least one parallel entry beam is changed with respect to its diameter. The exit beam has the same optical axis as the entry beam. The zoom device of the invention is assembled from several zoom systems. The optical axes of the lenses of the different zoom systems are arranged so as to be mutually parallel or at least in a fixed spatial relationship so that in a beam made up of many individual beams the defined diameter remains constant because of the axes of the outer individual beams.

Abstract: The invention relates to a process for providing a bearing of a tilting device, which makes possible a tilt around at least one axis, with a tilting member, a base member, and a bearing situated between these two members. The center of gravity of the tilting member is situated at the pivot point of the bearing. A first portion of the tilting member is arranged above the pivot point, a second portion of the tilting member is arranged below the pivot point, and the weight of the first portion of the tilting member and the weight of the second portion of the tilting member correspond to each other.

Abstract: An apparatus for laser machining by creating a plurality of discrete and separate beams which are sent to a deflecting device including a support and a plurality of individual elements that act independently and are individually controlled to machine different points on the workpiece simultaneously.

Abstract: A method and apparatus for irradiating a surface of a workpiece utilizing several discrete component beams. The irradiation exposes a photosensitive layer on a surface of a workpiece to be processed. A deflecting device is provided having a plurality of elements assigned to corresponding ones of the component beams. Each component beam is directed individually or in combination with other component beams by the deflecting device. In this way, different points and zones on the surface of the workpiece to be processed can be irradiated simultaneously.

Abstract: The invention relates to a tilt mirror arrangement which has at least one tilt mirror, a base and at least one mirror bearing having at least a virtually fixed pivot point between the tilt mirror and the base. The mirror surface is characterized by a length of less than 40 mm and the size of the entire arrangement of the tilt mirror, bearing and housing is arranged below the mirror surface so that the arrangement does not extend beyond the projection of the mirror plane or extends only insignificantly when the mirror tilts.

Abstract: A stand is provided for mounting various loads and is balanced at least partially automatically. The stand includes a plurality of interconnected elements defining one or more axes about which the stand is movable. An open-loop or closed-loop control circuit is provided for at least one of the axes and detects the unbalanced state about the one axis. The control circuit allows a torque compensating device to operate on the one axis until a state of equilibrium is obtained.

Abstract: A motorized stand for positioning medical therapeutic or diagnostic instruments is mechanically coarsely balanced by weights. A defined positioning of the medical instrument is determined by means of several drive units with integrated angle transducers. Operating safety is additionally ensured, in the event of failure of a drive unit, by the use of two angle transducers per drive unit. One angle transducer is coupled to the drive motor of each drive unit. The other angle transducer is independent of the drive motor.