Siemens Aktiengesellschaft

Siemens Energy Global Gmbh & Co. Kg

Siemens Energy, Inc.

Siemens Schweiz Ag

Michael Clossen-von Lanken Schulz

Stefan Obermayr

Michael Opheys

Paul Dreischer

El Mahjoub Rasselkorde

Kai Kadau

Markus Legenbauer

Larry Himes

Philipp Kahlert

Sebastian Jakielski

Matthias Dierks

Dennis Schlüter

Christian Borgmann

Luca Julian Lersch

Stefan Nendel

Stefan Frank

Michael Otto

Stefan Ziehlke

Christian Böhme

Hans Rauschenbach

Bracket

A method for the nondestructive crack testing of surfaces of rotor blade-receiving blade reception slots of a rotor, includes the following steps: positioning a guide rail on a rotor surface section between two rotor blades; positioning an ultrasound test head oriented in the direction of at least one blade reception slot and is moveable in a manner guided along a trajectory predefined by the shape of the guide rail; moving the test head along the trajectory in the installed state of two adjacently arranged rotor blades and checking the surface of the blade reception slot for the presence of cracks using the ultrasound test head, wherein cracks that are present are detected in the form of data using the ultrasound test head; diagnosing the rotor state on the basis of the data.

Method for the nondestructive crack testing of surfaces of rotor blade-receiving blade reception slots of a rotor, and ultrasound device

An inspection vehicle which is designed to be inserted into the air gap between a rotor and a stator of an electrical machine, in particular of a generator, and to be moved on the substantially cylindrical outer circumference of the rotor in order to inspect the outer circumference of the rotor and/or the inner circumference of the stator for damage.

Inspection vehicle

A device for taking a sample from a solid body by cutting out, having a frame and a cutting tool retained on the frame in such a way that the cutting tool can be moved relative to the frame, wherein the cutting tool, at least in parts, at least substantially has the shape of a hollow spherical cap or a hollow spherical segment. A method for taking a sample from a solid body by cutting out is implemented with the device.

Method and device for taking a sample, and use of a device of this type

A test robot for testing slot breech wedges, which are provided on the outer periphery of a rotor of a generator, the rotor being surrounded by a stator, with a chassis, which receives a drive system, a position detection device, a controller, which controls the drive system based on data captured by the position detection device, magnets attached to the chassis, which are positioned and designed such that the magnets adherently hold the chassis to a magnetic substrate, at least one ultrasound test head, which is freely accessible from the underside of the chassis and is movable upward and downward, and at least one couplant application component, which is provided on the chassis and is associated with the ultrasound test head.

Testing of slot breech wedges of a generator rotor

A measuring assembly for detecting the wall thickness of a pipe, including an ultrasonic probe and a testing head with a main element which receives an ultrasonic probe and the lower face of which defines a main element support surface is provided. The testing head has two wing elements, the lower face of each of which defines a wing element support surface and which are held on the main element in a pivotal manner about pivot axes extending substantially parallel to one another in a longitudinal direction such that the wing element support surfaces can be moved towards each other and away from each other. The wing elements are connected via synchronizing means such that the pivotal movements of the wing elements about the corresponding pivot axes are carried out in a synchronous manner. An associated method is also provided.

Ultrasound measuring assembly and method for detecting the wall thickness of a pipe

A milling device is provided, having a milling tool that rotates about a tool rotation axis, wherein the milling device has a slide, and in that the milling tool is held on a pivot axis that extends transversely, in particular perpendicular, to the tool rotation axis and through the slide, wherein the slide is designed and the position of the milling tool is selected such that, during milling, a traversing movement is effected by manually moving the slide and advance is effected by pivoting the milling tool about the pivot axis. Also provided is a method for milling within a slot of a component, in particular within a blade root receiving slot of a turbomachine, using a milling device.

Milling device and method for milling within a slot

An ultrasonic apparatus for cleaning component surfaces () by means of a transporting liquid in which ultrasonic waves can be transported, the apparatus including an inlet () mounted on a body for filling the transporting liquid into the body, an ultrasonic oscillator () in the body for producing ultrasonic waves, a feed in the body for guiding the transporting liquid from the inlet () directly to the ultrasonic oscillator (), so that the ultrasonic waves can be introduced into the transporting liquid and the liquid can be transported, an outlet () connected to the feed for discharging the transporting liquid which transports the ultrasonic waves from the body, so that a directed cleaning jet is produced. In addition, a holding device for such an ultrasonic apparatus is provided.

Ultrasonic apparatus, and associated holding device, for cleaning component surfaces

A method of brazing including melting a surface region () of a substrate () and contacting a braze material () with the melted surface region, the braze material including a plurality of braze fillers () and a plurality of carbon structures (). The method further includes subjecting the braze material to an amount of energy effective to melt the braze fillers but not the carbon structures, and cooling the braze material to form a brazement () including the carbon structures within at least a portion of the substrate. The brazement includes a gradient () of the carbon structures, wherein a concentration of the carbon structures increases in a direction away from an interior of the substrate.

Method for utilizing a braze material with carbon structures

A fire detector has a detection unit working on the optical scattered-light principle, as well as an electronic evaluation unit. An acoustic and/or optical warning device outputs an acoustic and/or optical alarm when a fire is detected. The fire detector has an energy storage device, in particular a battery, for the autarkic supply of electrical power to the fire detector as well as a voltage measuring unit for measuring a battery voltage present at the energy storage device. A warning device outputs an acoustic warning if the battery voltage falls below a first voltage threshold. The fire detector also has a sensor sensitive to ambient light and a device for suppressing the output of the acoustic warning if the ambient light falls below a predefinable brightness threshold. The detection unit is an open scattered-light detection unit with a detection space outside the fire detector and the sensor sensitive to ambient light is at the same time an optical receiver of the scattered-light detection unit.

Scattered-light fire detector with a device for suppressing an acoustic warning in the event of a low battery voltage

A device for the nondestructive material testing of an at least sectionally solid test subject by applying ultrasonic waves to the test subject and detecting the ultrasonic waves reflected inside the test subject is provided The device includes at least one testing head for transmitting the ultrasonic waves and for detecting the ultrasonic waves reflected from the test subject, at least one mobile carriage, on which the testing head is attached, and an elongate rail for guiding the carriage, which is adapted to the structure of the surface of the test subject. To this end, the carriage may be moved along the rail.

Device for nondestructive material testing of a test subject using ultrasonic waves

An ultrasound device for medical application has a transducer formed by a number of transducer elements. The transducer elements are carried on a flexible support that allows the transducer elements to be configured to an examination subject. A measurement device determines, for each transducer element, a distance or a rotation thereof with respect to a reference point. The reference point can be a point that is physically a part of the ultrasound device, or can be a virtual reference point.

Ultrasound device for medical applications

The invention relates to a method and a measuring and evaluation device for determining defects in a turbine blade and to a fixing device for fixing a probe to a turbine blade surface.

Method and device for determining defects in a turbine blade

The invention relates to a method which is used to detect defects on a component of a turbine. Said method comprises the following steps; at least one ultrasonic signal is emitted and captured by means of a group beam examination head on a flat region of the component which is to be examined. The invention is characterized according to the following steps: the group of the beam examination heads are distributed into several virtual examination heads and at least one ultrasonic signal is emitted and captured by at least two of the virtual examination heads which is directed to an individual flat region which is to be examined.

Growing community of inventors

Issum, Germany

Michael Clossen-von Lanken Schulz