Patents by Inventor Mirko Milazar

Mirko Milazar 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: 9382846
    Abstract: A sealing element for sealing a gap between two components is provided. The sealing arrangement may be a seal arrangement of a gas turbine system, wherein the sealing element is elongate along a main line and has a contoured cross section in a corrugated center region. In cross section, the sealing element is directed along the main line and may be deformed in a direction substantially orthogonally with respect to the main line. In order to provide a wear-resistant, long-lasting sealing element with a particularly efficient blocking action, it is proposed that the seal teeth of the corrugation have a virtually rectangular cross-sectional contour, the tooth height of which seal teeth is between 10% and 40% of the sealing-element thickness which may be measured parallel to the tooth height.
    Type: Grant
    Filed: July 13, 2011
    Date of Patent: July 5, 2016
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventor: Mirko Milazar
  • Patent number: 9238976
    Abstract: A turbine guide vane system, in particular for a gas turbine is provided. The turbine guide vane system includes a number of guide vane rows and a guide vane carrier, to enable particularly simple replacement of guide vanes, while maintaining a particularly high degree of efficiency, and thus designed for particularly short repair durations. For this purpose, the guide vane carrier has a number of segments, wherein a segment extends over the entire radial extension of the guide vane carrier and the connection of the remaining segments may be detached, and wherein the turbine guide vane carrier includes at least two sections along the axial extension thereof that are connected to one another and have a different number of segments.
    Type: Grant
    Filed: January 5, 2010
    Date of Patent: January 19, 2016
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Fathi Ahmad, Giuseppe Gaio, Holger Grote, Christian Lerner, Mirko Milazar, Mathias Stutt, Thomas-Dieter Tenrahm, Bernd Vonnemann
  • Patent number: 9200529
    Abstract: A method for measuring and adjusting gaps between a rotor and a stator of a machine using a sensor is provided. The measuring is conducted when the rotor is operated at a rotational speed below a nominal rotational speed of the machine and without the machine being in operation. The adjusting of the gap is carried out as a function of at least one gap dimension of the gap. The sensor is not resistant to an operating temperature of the machine occurring in a region where the sensor is located. After completion of the measuring the machine is operated with the sensor.
    Type: Grant
    Filed: June 9, 2011
    Date of Patent: December 1, 2015
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Tobias Buchal, Björn Buchholz, Thomas Hille, Anna Kapustina, Mirko Milazar, Eric Schwerin
  • Patent number: 8894371
    Abstract: A rotor section for a rotor of a gas turbine, a rotor blade, and a blocking element are provided. The rotor section includes a rotor disk including rotor blades that are inserted thereon in holding grooves and that are secured against sliding along the holding grooves by means of a sealing element arranged at the end face. In order to specify a reliable, simple, and easy-to-design construction for the circumferential fixing of the sealing elements, it is proposed that each sealing element be secured by one blocking element, which engages in a hole arranged at the end face in the rotor blade root.
    Type: Grant
    Filed: January 27, 2010
    Date of Patent: November 25, 2014
    Assignee: Siemens Aktiengesellschaft
    Inventors: Guido Ahaus, Axel Buschmann, Sascha Dungs, Harald Hoell, Karsten Kolk, Mirko Milazar, Peter Schröder, Vyacheslav Veitsman
  • Patent number: 8888460
    Abstract: A rotor section for a rotor of a gas turbine is provided. The rotor section includes a rotor disk with rotor blades inserted in retaining grooves thereupon, the rotor blades being secured against displacement along the retaining grooves by means of a sealing element which is arranged on the end face. In order to disclose a reliable construction which can be designed in a straightforward and simple manner for the circumferential fixing of the sealing element, each sealing element is secured by means of a blocking element in each case which in this case engages in a hole which is arranged in the rotor blade root on the end face.
    Type: Grant
    Filed: January 30, 2012
    Date of Patent: November 18, 2014
    Assignee: Siemens Aktiengesellschaft
    Inventors: Guido Ahaus, Axel Buschmann, Sascha Dungs, Harald Hoell, Karsten Kolk, Mirko Milazar, Peter Schröder, Vyacheslav Veitsman
  • Patent number: 8870526
    Abstract: A stator blade carrier for a gas turbine is provided. The stator blade carrier includes a plurality of axial segments. At least one axial segment is designed as a tubular lattice structure. This allows a simpler design technically and a more flexible adaptation to the temperature profile present on the stator blade carrier to maintain operational safety.
    Type: Grant
    Filed: September 10, 2009
    Date of Patent: October 28, 2014
    Assignee: Siemens Aktiengesellschaft
    Inventors: Roderich Bryk, Sascha Dungs, Martin Hartmann, Uwe Kahlstorf, Karl Klein, Oliver Lüsebrink, Mirko Milazar, Nicolas Savilius, Oliver Schneider, Shilun Sheng, Vadim Shevchenko, Gerhard Simon, Norbert Thamm
  • Publication number: 20130312249
    Abstract: A method for measuring and adjusting gaps between a rotor and a stator of a machine using a sensor is provided. The measuring is conducted when the rotor is operated at a rotational speed below a nominal rotational speed of the machine and without the machine being in operation. The adjusting of the gap is carried out as a function of at least one gap dimension of the gap. The sensor is not resistant to an operating temperature of the machine occurring in a region where the sensor is located. After completion of the measuring the machine is operated with the sensor.
    Type: Application
    Filed: June 9, 2011
    Publication date: November 28, 2013
    Inventors: Tobias Buchal, Björn Buchholz, Thomas Hille, Anna Kapustina, Mirko Milazar, Eric Schwerin
  • Publication number: 20130207351
    Abstract: A sealing element for sealing a gap between two components is provided. The sealing arrangement may be a seal arrangement of a gas turbine system, wherein the sealing element is elongate along a main line and has a contoured cross section in a corrugated centre region. In cross section, the sealing element is directed along the main line and may be deformed in a direction substantially orthogonally with respect to the main line. In order to provide a wear-resistant, long-lasting sealing element with a particularly efficient blocking action, it is proposed that the seal teeth of the corrugation have a virtually rectangular cross-sectional contour, the tooth height of which seal teeth is between 10% and 40% of the sealing-element thickness which may be measured parallel to the tooth height.
    Type: Application
    Filed: July 13, 2011
    Publication date: August 15, 2013
    Inventor: Mirko Milazar
  • Publication number: 20120128504
    Abstract: A rotor section for a rotor of a gas turbine is provided. The rotor section includes a rotor disk with rotor blades inserted in retaining grooves thereupon, the rotor blades being secured against displacement along the retaining grooves by means of a sealing element which is arranged on the end face. In order to disclose a reliable construction which can be designed in a straightforward and simple manner for the circumferential fixing of the sealing element, each sealing element is secured by means of a blocking element in each case which in this case engages in a hole which is arranged in the rotor blade root on the end face.
    Type: Application
    Filed: January 30, 2012
    Publication date: May 24, 2012
    Inventors: Guido AHAUS, Axel BUSCHMANN, Sascha DUNGS, Harald HOELL, Karsten KOLK, Mirko MILAZAR, Peter SCHRÖDER, Vyacheslav VEITSMAN
  • Publication number: 20120118524
    Abstract: A core die is provided. The core die includes a first half and a second half where a cavity is formed between the two. Pins are arranged on the halves and the pins are replaceable. By virtue of the modular inner structure of a core die, the core die may be matched to the desired changes of the core, by small changes, more quickly and more easily than would be the case if the core die had only one part or if the pins were a fixed component of the core die halves.
    Type: Application
    Filed: October 18, 2011
    Publication date: May 17, 2012
    Inventors: Fathi Ahmad, Winfried Esser, Giuseppe Gaio, Waldemar Heckel, Rudolf Küperkoch, Oliver Lüsebrink, Thorsten Mattheis, Mirko Milazar, Artur Mol, Uwe Paul, Oliver Ricken, Oliver Schneider
  • Publication number: 20120107136
    Abstract: A rotor blade system, for example, of a gas turbine is provided. The rotor blade system includes a plurality of rotor blades which are arranged annularly on a rotor disk. A plurality of sealing plates are arranged on a side surface of the rotor disk. An individual sealing plate is formed from a plurality of metal sheets, wherein two of the metal sheets are arranged opposite each other a distance apart and parallel to a plane of the sealing plate, forming a gap for guiding of cooling air.
    Type: Application
    Filed: March 25, 2010
    Publication date: May 3, 2012
    Inventors: Tobias Buchal, Sascha Dungs, Winfried Esser, Birgit Grüger, Oliver Lüsebrink, Mirko Milazar, Nicolas Savilius, Oliver Schneider, Peter Schröder, Waldemar Socha
  • Publication number: 20120039719
    Abstract: A rotor section for a rotor of a gas turbine, a rotor blade, and a blocking element are provided. The rotor section includes a rotor disk including rotor blades that are inserted thereon in holding grooves and that are secured against sliding along the holding grooves by means of a sealing element arranged at the end face. In order to specify a reliable, simple, and easy-to-design construction for the circumferential fixing of the sealing elements, it is proposed that each sealing element be secured by one blocking element, which engages in a hole arranged at the end face in the rotor blade root.
    Type: Application
    Filed: January 27, 2010
    Publication date: February 16, 2012
    Inventors: Guido Ahaus, Alex Buschmann, Sascha Dungs, Harald Hoell, Karsten Kolk, Mirko Milazar, Peter Schröder, Vyacheslav Veitsman
  • Publication number: 20120039716
    Abstract: A turbine guide vane system, in particular for a gas turbine is provided. The turbine guide vane system includes a number of guide vane rows and a guide vane carrier, to enable particularly simple replacement of guide vanes, while maintaining a particularly high degree of efficiency, and thus designed for particularly short repair durations. For this purpose, the guide vane carrier has a number of segments, wherein a segment extends over the entire radial extension of the guide vane carrier and the connection of the remaining segments may be detached, and wherein the turbine guide vane carrier includes at least two sections along the axial extension thereof that are connected to one another and have a different number of segments.
    Type: Application
    Filed: January 5, 2010
    Publication date: February 16, 2012
    Inventors: Fathi Ahmad, Giuseppe Gaio, Holger Grote, Christian Lerner, Mirko Milazar, Matthias Stutt, Thomas-Dieter Tenrahm, Bernd Vonnemann
  • Publication number: 20110268580
    Abstract: A stator blade carrier for a gas turbine is provided. The stator blade carrier includes a plurality of axial segments. At least one axial segment is designed as a tubular lattice structure. This allows a simpler design technically and a more flexible adaptation to the temperature profile present on the stator blade carrier to maintain operational safety.
    Type: Application
    Filed: September 10, 2009
    Publication date: November 3, 2011
    Inventors: Roderich Bryk, Sascha Dungs, Martin Hartmann, Uwe Kahlstorf, Karl Klein, Oliver Lüsebrink, Mirko Milazar, Nicolas Savilius, Oliver Schneider, Shilun Sheng, Vadim Shevchenko, Gerhard Simon, Norbert Thamm
  • Publication number: 20110214431
    Abstract: A turbine guide vane support for an axial-flow gas turbine is provided. The support includes a tubular wall having an inflow-side end and an outflow-side end for a hot gas flowing in the interior of the turbine guide vane support in a flow path of the gas turbine. Cooling channels for a coolant are provided in the wall. The cooling channels extend from a coolant inlet to a coolant outlet, respectively. At least one of the cooling inlets and one of the cooling outlets, respectively, is disposed at the outflow-side end of the turbine guide vane support, wherein the cooling channel associated with the respective inlet and outlet extends up to the inflow-side end of the turbine guide vane support and transitions to a redirecting area from which the respective cooling channel further extends to the outflow-side end.
    Type: Application
    Filed: August 17, 2009
    Publication date: September 8, 2011
    Inventors: Francois Benkler, Andreas Böttcher, Daniel Grundei, Uwe Lohse, Ekkehard Maldfeld, Mirko Milazar, Oliver Schneider, Shilun Sheng
  • Patent number: 7766611
    Abstract: The invention relates a method for improving the hot-starting behavior of a turbomachine. By virtue of the setting of a radial gap formed between a brushing edge of a blade profile and a guide face lying opposite this, in which setting a guide ring forming the guide face can be acted upon with a coolant, the hot-starting behavior can be improved, in that the guide ring is cooled before the start of the machine.
    Type: Grant
    Filed: April 28, 2006
    Date of Patent: August 3, 2010
    Assignee: Siemens Aktiengesellschaft
    Inventors: Tobias Buchal, Gerhard Hülsemann, Mirko Milazar, Dieter Minninger, Michael Neubauer, Harald Nimptsch, Heinrich Pütz, Kang Qian, Arnd Reichert, Volker Vosberg
  • Patent number: 7530233
    Abstract: A gas turbine, with a fixed inner housing, arranged concentric to the rotor, with a through flow of working medium, is disclosed. The housing comprises at least two serial rings with an annular gap left between two directly adjacent rings, whereby an annular sealing means is arranged in at least one peripheral groove for sealing the annual gap. According to the invention, a sealing means is provided which permits a greater movement of both components forming the gap, whereby the annual gap is formed by partly overlapping rings, running against the flow direction of the working fluid in the radial sense and the front most of the two rings, in the sense of the flow direction, comprises a locating annular surface for the sealing means embodied as an annular spring element on which the spring element rests under tension such as to seal the annular gap.
    Type: Grant
    Filed: September 7, 2004
    Date of Patent: May 12, 2009
    Assignee: Siemens Aktiengesellschaft
    Inventor: Mirko Milazar
  • Publication number: 20070025841
    Abstract: A gas turbine, with a fixed inner housing, arranged concentric to the rotor, with a through flow of working medium, is disclosed. The housing comprises at least two serial rings with an annular gap left-between two directly adjacent rings, whereby an annular sealing means is arranged in at least one peripheral groove for sealing the annual gap. According to the invention, a sealing means is provided which permits a greater movement of both components forming the gap, whereby the annual gap is formed by partly overlapping rings, running against the flow direction of the working fluid in the radial sense and the front most of the two rings, in the sense of the flow direction, comprises a locating annular surface for the sealing means embodied as an annular spring element on which the spring element rests under tension such as to seal the annular gap.
    Type: Application
    Filed: September 7, 2004
    Publication date: February 1, 2007
    Inventor: Mirko Milazar
  • Publication number: 20060245910
    Abstract: The invention relates a method for improving the hot-starting behavior of a turbomachine. By virtue of the setting of a radial gap formed between a brushing edge of a blade profile and a guide face lying opposite this, in which setting a guide ring forming the guide face can be acted upon with a coolant, the hot-starting behavior can be improved, in that the guide ring is cooled before the start of the machine.
    Type: Application
    Filed: April 28, 2006
    Publication date: November 2, 2006
    Inventors: Tobias Buchal, Gerhard Hulsemann, Mirko Milazar, Dierer Minninger, Michael Neubauer, Harald Nimptsch, Heinrich Putz, Kang Qian, Arnd Reichert, Volker Vosberg
  • Patent number: 7018165
    Abstract: Method of minimizing the gap between a wheel and a casing of a turbine, a turbine, and a method of determining the wear behavior of a wheel of a rotor. To minimize the gap between a wheel and a casing in a turbine, optical methods are also often used in order to minimize the gap. However, this is very expensive. The method according to the invention proposes that the wheel and the casing (be part of an electric circuit, so that an electrical parameter, such as resistance for example, can be measured, the value of which shows whether a contact is present.
    Type: Grant
    Filed: October 12, 2004
    Date of Patent: March 28, 2006
    Assignee: Siemens Aktiengesellschaft
    Inventor: Mirko Milazar