Abstract: A gas turbine component for a gas turbine is provided. The gas turbine component has a shell portion having an abradable portion (2) to allow rotor blade ends (1) of a rotor blade array of the gas turbine to rub into the same. The abradable portion adjoins a neighboring portion (3) of the shell portion axially at both sides and is additively manufactured together therewith.

Abstract: A beacon device is provided in proximity to a computing system within a computing center. A request to locate the computing system in the computing center is triggered on a central control unit. In response to the request to locate the computing system, the control unit generates specification data for a unique radio signal identifier, sends an activation request and the specification data to the beacon device, and provides the specification data to a portable device and stores the specification data on the portable device. In response to receiving the activation request, the beacon device sends a radio signal identifier generated from the specification data.

Abstract: The invention relates to a guide vane ring (10) with at least one guide vane ring segment for a turbomachine, including a plurality of guide vanes (12) arranged radially around an axis of rotation, an outer shroud (14) arranged radially on the outer side of the guide vanes (12), and an inner shroud (16) arranged radially on the inner side of the guide vanes (12), wherein the outer shroud (14) or the inner shroud (16) has at least one expansion joint (18), wherein the guide vane ring segment is formed in one piece with the guide vanes (12), the outer shroud (14), and the inner shroud (16) and the at least one expansion joint (18) is sealed in each case by at least one sealing device (24) arranged in the respective expansion joint (18).

Abstract: A sealing arrangement for a turbomachine for sealing a radial gap between a rotor and a stator, with a plurality of sealing segments each comprising a honeycomb element and a base body for holding the honeycomb element, and with at least one support for arranging the sealing segments on a rotor section or stator section, wherein the base bodies can be arranged on the at least one support by a radial movement and by a plastic deformation of at least one body section, a generative method for the integral production of the sealing segments, and a turbomachine are disclosed.

Abstract: The presently disclosed subject matter relates to a dispersible, nonwoven multistrata wipe material that is stable in a wetting liquid and flushable in use. More particularly, the presently disclosed subject matter relates to multilayered structures including, but not limited to, two, three, or four layers to form the dispersible nonwoven wipe material. The layers contain combinations of cellulosic and noncellulosic fibers, and optionally a binder or additive.

Abstract: A combined vehicle brake which has a hydraulically actuable service brake and an electromechanically actuable parking brake device. The present invention is based on the problem of improving the known ball screw drives for use in vehicle brakes, of making simple automated assembly possible, and in addition of opening up the possibility to increase cycle times. A spring element of double helical type which is configured differently in sections is provided, in a middle section, that is to say in the drive thread turn, which substantially do not impede the elastically pliable adaption of the spring element to the helically wound drive thread turn, and wherein a bearing section is additionally provided at at least one end of the spring element, which bearing section has an increased transverse rigidity or has it impressed onto it in comparison with the middle section.

Abstract: A serial bus is provided with a device (sometimes herein referred to as an I2C serializer device) including circuitry and machine logic that operates as follows: when one of the master devices is using the bus for data communication, then the other master(s) will receive a wait signal until the bus becomes available again. This wait signal allows the master devices to wait as a “hardware response,” rather than requiring the master devices to be equipped with software and/or firmware to control the operation of waiting until the serial bus is available. In some embodiments, the use of the I2C serializer device allows a bus operating under a bus serialization protocol (for example, I2C) to be simultaneously connected to multiple master devices even in the case that one, or more, master device(s) do not include any currently conventional form of multi-master support.

Abstract: A serial bus is provided with a device (sometimes herein referred to as an I2C serializer device) including circuitry and machine logic that operates as follows: when one of the master devices is using the bus for data communication, then the other master(s) will receive a wait signal until the bus becomes available again. This wait signal allows the master devices to wait as a “hardware response,” rather than requiring the master devices to be equipped with software and/or firmware to control the operation of waiting until the serial bus is available. In some embodiments, the use of the I2C serializer device allows a bus operating under a bus serialization protocol (for example, I2C) to be simultaneously connected to multiple master devices even in the case that one, or more, master device(s) do not include any currently conventional form of multi-master support.

Abstract: The invention relates to an apparatus (10) for securing sealing elements (12, 14) in a recess (16), more particularly in an installation slot in a turbomachine, having at least one sealing support element (18) comprising at least one sealing element (12, 14). At least one fixing piece (20) is fitted between the sealing support element (18) and a clamping piece (22) associated with the sealing support element (18), and the fixing piece (20) is integrally joined to the sealing support element (18) and the clamping piece (22) by strut-like connections (24) that can be broken by the application of force. The invention also relates to a securing method and to a method for manufacturing the claimed apparatus (10).

Abstract: A method is presented for reliably operating at least one sensor connected to a central control unit. Each sensor senses a sensor value for its sensor parameter and creates an interrupt to the control unit when its sensor value is outside a sensor value range limited by an upper and a lower threshold. Upon generation of an interrupt by a sensor, a modified sensor value range is calculated so that the sensor value causing the interrupt lies within the modified sensor value range, and the modified sensor value range is applied to the respective sensor. The method further includes repeatedly verifying correct behavior of each sensor. A computer-readable medium, a computer program product, and a system for executing the above-summarized method are also presented.

Abstract: The invention relates to a device (10) for the manufacture or repair of a three-dimensional object, comprising at least one construction chamber (12) for a successive solidification of at least one solidifiable material layer by the layer in predefined regions for the layer-by-layer buildup of the three-dimensional object or for the layer-by-layer repair of individual regions of the three-dimensional object within the construction chamber (12), and at least one inlet nozzle (22, 26) and at least one suction nozzle (24) for a process gas, wherein the inlet nozzle (22, 26) and the suction nozzle (24) are arranged in such a way that a gas flow (30) that passes at least partially over a construction platform (14) formed in a construction chamber (12) is created.

Abstract: The invention relates to a repair method for a component (12) and includes the steps of removal of a damaged region of the component (12) with the formation of at least one separating surface; arrangement of the component (12) in a processing chamber (11) of a device (10) for the additive restoration of at least the region of the component that has been removed; determining first structural data of the component (12) disposed in the processing chamber (11); providing second structural data of the component (12); determining third structural data based on the first and the second structural data; and additive restoration of the component region that has been removed on the at least one separating surface of the component (12). In addition, the invention relates to a device (10) for the additive repair of a component (12).

Abstract: A dispersible, nonwoven multistrata wipe material that is stable in a wetting liquid and flushable in use is provided. More particularly, the materials are multilayered structures including, but not limited to, two, three, or four layers to form the dispersible nonwoven wipe material. The layers contain combinations of cellulosic and noncellulosic fibers, and optionally a binder or additive.

Abstract: The present invention relates to a method for manufacturing components, in particular components of turbomachines, such as aircraft engines, wherein an additive method is used at least partially for the manufacture of the component (1), wherein at least one surface region (3) of the additively manufactured portion of the component (1) is provided with a smoothing layer (2), which is deposited by vapor deposition. In addition, the invention relates to a correspondingly manufactured component of a turbomachine.

Abstract: The invention relates to a method for the quality assessment of a component produced by means of an additive manufacturing method. In the course of the method, it is checked first of all whether the component violates predetermined absolute limits in order to rule out the existence of serious malfunctions in the additive manufacturing process. Subsequently, a component-dependent targeting process is determined. On the basis of this targeting process, the limits for deviations are established and deviating actual values of the component are isolated and assessed by means of various parameters.

Abstract: A beacon device is provided in proximity to a computing system within a computing center. A request to locate the computing system in the computing center is triggered on a central control unit. In response to the request to locate the computing system, the control unit generates specification data for a unique radio signal identifier, sends an activation request and the specification data to the beacon device, and provides the specification data to a portable device and stores the specification data on the portable device. In response to receiving the activation request, the beacon device sends a radio signal identifier generated from the specification data.

Abstract: The invention relates to an apparatus (10) for securing sealing elements (12, 14) in a recess (16), more particularly in an installation slot in a turbomachine, having at least one sealing support element (18) comprising at least one sealing element (12, 14). At least one fixing piece (20) is fitted between the sealing support element (18) and a clamping piece (22) associated with the sealing support element (18), and the fixing piece (20) is integrally joined to the sealing support element (18) and the clamping piece (22) by strut-like connections (24) that can be broken by the application of force. The invention also relates to a securing method and to a method for manufacturing the claimed apparatus (10).

Abstract: A leaf seal for sealing off a shaft rotating around an axis, particularly in a gas turbine, is disclosed. The leaf seal includes a plurality of leaves arranged spaced apart from one another, where the leaves are produced integrally with a basic element supporting the leaves by a generative production process. A process for producing a leaf seal for sealing off a shaft rotating around an axis is also disclosed.

Abstract: A housing for a turbomachine includes a peripheral wall delimiting an annular space and a fluid conveying system for redirecting a partial flow of a main flow, which has an axial channel, a front annular channel and a rear annular channel in fluid connection with the axial channel and having a front annular space opening and a rear annular space opening. The fluid conveying system has a front valve device and a rear valve device controllable independently of the front valve device, for opening and closing the annular space openings, and an outlet opening for tapping the partial flow from the fluid conveying system. In the closed state of the rear annular space opening, the partial flow is directable through the rear annular channel and, in the closed state of the front annular space opening, the partial flow is directable through the front annular channel.

Abstract: The invention relates to a method for evaluating the quality of a component (10) produced by means of an additive laser sintering and/or laser melting method, in particular a component (10) for an aircraft engine. The method comprises at least the steps of providing a first data set, which comprises spatially resolved color values, which each characterize the temperature of the component (10) at an associated component location during the laser sintering and/or laser melting of the component (10), providing a second data set, which comprises spatially resolved color values corresponding to the first data set, which color values each characterize the temperature of a reference component at an associated reference component location during the laser sintering and/or laser melting of the reference component.