Patents by Inventor Jürgen Zettner

Jürgen Zettner has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10668536
    Abstract: First subareas of a layer of powder applied on a substrate are heated locally with a process beam so as to heated, but not yet interconnect the grains of the powder in the first subareas. A temperature profile of the applied layer is evaluated proximate to the first subarea as a function of the distance from the respective first subarea and/or the time. The local thermal conductivity and/or local diffusivity are determined for the respective first subarea based on the temperature profile. Second subareas of the applied layer which at least partially overlap the first subareas are then heated locally with the process beam so as to interconnect the grains of the powder in the second subareas. A process variable of the process beam influencing heating of the second subareas is determined based on the local thermal conductivity or diffusivity previously determined for the at least partially overlapping first subarea.
    Type: Grant
    Filed: February 15, 2018
    Date of Patent: June 2, 2020
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventor: Jürgen Zettner
  • Publication number: 20190331542
    Abstract: In a method for determining loading of a bearing supporting a rotor of an electrical machine, the rotational speed and angular acceleration of the rotor is determined, matrix elements of a matrix are assigned to respective ranges of the angular acceleration and to respective ranges of the rotational speed, when the electrical machine is operated in a respective range of the angular acceleration and the rotational speed corresponding to the respective matrix element for a predefined time unit, an elementary variable, for example a value of 1, is added to the respective matrix element, and the loading of the bearing is determined as a weighted sum of the matrix elements. Thus, the matrix forms a representation of the operating time of the bearing and of the service life over time in relation to the rotational speeds and angular accelerations. The loading can be shown on a display.
    Type: Application
    Filed: April 26, 2019
    Publication date: October 31, 2019
    Applicant: Siemens Aktiengesellschaft
    Inventors: Ulf Bormann, HANS-HENNING KLOS, JÜRGEN SCHIMMER, JÜRGEN ZETTNER, DIRK SCHEIBNER
  • Publication number: 20190301908
    Abstract: A thermoresistive gas sensor, e.g. for a flow sensor or a thermal conductivity detector, has a lattice with lattice webs, which consist of a semiconductor material arranged in the plane of the lattice in parallel next to one another, wherein the semiconductor material is formed on a plate-shaped semiconductor substrate that extends over a window-like cutout in the semiconductor substrate and forms the lattice, where the semiconductor layer is doped outside the cutout in areas of two ends of the lattice at least over the width of the lattice until it degenerates and/or bears metallizations, where the semiconductor layer further contains a separation structure insulating the two ends of the lattice from one another, in which the semiconductor material is removed or is not doped, and where the lattice webs extend in an S shape and are connected electrically in parallel to achieve a high measurement sensitivity and mechanical stability.
    Type: Application
    Filed: March 28, 2019
    Publication date: October 3, 2019
    Inventors: Sebastian Kisban, Stefan KLEHR, Thomas NEUHAUSER, Piotr STRAUCH, Jörg ZAPF, Jürgen ZETTNER, Stefan VON DOSKY
  • Publication number: 20180229304
    Abstract: First subareas of a layer of powder applied on a substrate are heated locally with a process beam so as to heated, but not yet interconnect the grains of the powder in the first subareas. A temperature profile of the applied layer is evaluated proximate to the first subarea as a function of the distance from the respective first subarea and/or the time. The local thermal conductivity and/or local diffusivity are determined for the respective first subarea based on the temperature profile. Second subareas of the applied layer which at least partially overlap the first subareas are then heated locally with the process beam so as to interconnect the grains of the powder in the second subareas. A process variable of the process beam influencing heating of the second subareas is determined based on the local thermal conductivity or diffusivity previously determined for the at least partially overlapping first subarea.
    Type: Application
    Filed: February 15, 2018
    Publication date: August 16, 2018
    Applicant: SIEMENS AKTIENGESELLSCHAFT
    Inventor: Jürgen Zettner
  • Patent number: 9696381
    Abstract: In a method for testing a bar winding of a rotor of a rotating electrical machine, a rotor temperature is detected by a thermal radiation sensor, which is arranged in a stator of the rotating electrical machine. A thermal radiation sensor is used with a resolution suitable for the thermal detection of individual bars of the bar winding. The rotor is rotated at a speed that is lower than a limit frequency of the thermal radiation sensor divided by the number of bars of the bar winding, and the thermal radiation of the rotor is detected by the thermal radiation sensor. The thermal radiation sensor is sampled at a sampling frequency that is higher than the speed of the rotor multiplied by the number of bars and the sampled values of the thermal radiation sensor are evaluated.
    Type: Grant
    Filed: February 19, 2014
    Date of Patent: July 4, 2017
    Assignee: Siemens Aktiengesellschaft
    Inventors: Jürgen Zettner, Christian Deeg, Thomas Schuhmann
  • Publication number: 20170131161
    Abstract: A drive, method and a device for determining the torque of a shaft, wherein gear wheels engaged with one another in a gearbox serve to apply an axial force to the shaft, where the axial force is induced by helical teeth of the gear wheels, the axial force of the shaft is determined using a force sensor and/or a position sensor, and where the torque is determined arithmetically from the measured axial force such that a static and dynamic measurement of the torque on the shaft can be advantageously performed.
    Type: Application
    Filed: November 4, 2016
    Publication date: May 11, 2017
    Inventors: Erkan ARSLAN, Tilo MOSER, Dirk SCHEIBNER, Juergen SCHIMMER, Juergen ZETTNER, Stefan VON DOSKY
  • Publication number: 20160274192
    Abstract: In a method for testing a bar winding of a rotor of a rotating electrical machine, a rotor temperature is detected by a thermal radiation sensor, which is arranged in a stator of the rotating electrical machine. A thermal radiation sensor is used with a resolution suitable for the thermal detection of individual bars of the bar winding. The rotor is rotated at a speed that is lower than a limit frequency of the thermal radiation sensor divided by the number of bars of the bar winding, and the thermal radiation of the rotor is detected by the thermal radiation sensor. The thermal radiation sensor is sampled at a sampling frequency that is higher than the speed of the rotor multiplied by the number of bars and the sampled values of the thermal radiation sensor are evaluated.
    Type: Application
    Filed: February 19, 2014
    Publication date: September 22, 2016
    Applicant: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Jürgen ZETTNER, Christian DEEG, Thomas SCHUHMANN
  • Publication number: 20130264472
    Abstract: A measuring transducer for obtaining position data, with a transmit/receive unit having a plurality of light sources for scanning a dimensional scale, wherein the transmit/receive unit includes several light sources, in particular at least one light source having a plurality of emitters.
    Type: Application
    Filed: April 3, 2013
    Publication date: October 10, 2013
    Applicant: Siemens Aktiengesellschaft
    Inventors: Jürgen Schimmer, Ulrich Wetzel, Jürgen Zettner
  • Patent number: 8358094
    Abstract: The invention relates to a method and arrangement having an electric machine, comprising a stator (4) and a rotor (1) and an infrared temperature sensor, wherein the detection field of the infrared temperature sensor is directed at an outer surface of the rotor (1). The infrared temperature sensor is a thermopile (6) for radiometrically contactlessly detecting a temperature of the rotor (1), the thermopile being arranged in a slot of the stator (4) and being compatible with standard slot-sealing-wedge components of the electric machine with regard to assembly, and thus enables the operational monitoring of the thermal state of an electric machine in a novel manner, such that adapted power states can be achieved.
    Type: Grant
    Filed: August 19, 2009
    Date of Patent: January 22, 2013
    Assignee: Siemens Aktiengesellschaft
    Inventor: Jürgen Zettner
  • Publication number: 20120298870
    Abstract: In a method for automated, contactless and non-destructive testing of a material joint (4), a dynamic threshold value is varied between a minimum threshold value and a maximum threshold value, with regions of a heat flow dynamics through the material joint (4) being determined which represent values of the heat flow dynamics exceeding the dynamic threshold value. The regions of the heat flow dynamics are examined with respect to an abrupt change in perimeter. An Abrupt change in perimeter occurs if a boundary (7) between a molten zone (5) and a non-molten but still adhering zone (6) of the material joint (4) is being crossed.
    Type: Application
    Filed: August 6, 2012
    Publication date: November 29, 2012
    Inventors: Roman LOUBAN, Jürgen ZETTNER, Christoph DÖTTINGER
  • Patent number: 8235588
    Abstract: In a method for automated, contactless and non-destructive testing of a material joint (4), a dynamic threshold value is varied between a minimum threshold value and a maximum threshold value, with regions of a heat flow dynamics through the material joint (4) being determined which represent values of the heat flow dynamics exceeding the dynamic threshold value. The regions of the heat flow dynamics are examined with respect to an abrupt change in perimeter. An Abrupt change in perimeter occurs if a boundary (7) between a molten zone (5) and a non-molten but still adhering zone (6) of the material joint (4) is being crossed.
    Type: Grant
    Filed: December 11, 2007
    Date of Patent: August 7, 2012
    Assignee: Thermosensorik GmbH
    Inventors: Roman Louban, Juergen Zettner, Christoph Doettinger
  • Publication number: 20120146563
    Abstract: The invention relates to a method and arrangement having an electric machine, comprising a stator (4) and a rotor (1) and an infrared temperature sensor, wherein the detection field of the infrared temperature sensor is directed at an outer surface of the rotor (1). The infrared temperature sensor is a thermopile (6) for radiometrically contactlessly detecting a temperature of the rotor (1), the thermopile being arranged in a slot of the stator (4) and being compatible with standard slot-sealing-wedge components of the electric machine with regard to assembly, and thus enables the operational monitoring of the thermal state of an electric machine in a novel manner, such that adapted power states can be achieved.
    Type: Application
    Filed: August 19, 2009
    Publication date: June 14, 2012
    Applicant: SIEMENS AKTIENGESELLSCHAFT
    Inventor: Jürgen Zettner
  • Publication number: 20100091812
    Abstract: In a method for automated, contactless and non-destructive testing of a material joint (4), a dynamic threshold value is varied between a minimum threshold value and a maximum threshold value, with regions of a heat flow dynamics through the material joint (4) being determined which represent values of the heat flow dynamics exceeding the dynamic threshold value. The regions of the heat flow dynamics are examined with respect to an abrupt change in perimeter. An Abrupt change in perimeter occurs if a boundary (7) between a molten zone (5) and a non-molten but still adhering zone (6) of the material joint (4) is being crossed.
    Type: Application
    Filed: December 11, 2007
    Publication date: April 15, 2010
    Applicant: Termosensorik GmbH
    Inventors: Roman Louban, Juergen Zettner, Christoph Doettinger