Patents by Inventor Jurgen Wortmann

Jurgen Wortmann 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).

  • Publication number: 20140047837
    Abstract: Method of maintaining or widening the long-term operating temperature range of a heat transfer medium and/or heat storage medium comprising a nitrite salt composition comprising, as significant constituents, an alkali metal nitrate or an alkaline earth metal nitrate or a mixture of alkali metal nitrate and alkaline earth metal nitrate and in each case an alkali metal nitrite and/or alkaline earth metal nitrite, wherein all or part of the nitrite salt composition is brought into contact with an additive composed of nitrogen and/or noble gases, in each case with elemental oxygen, the latter in an amount in the range from 0 to 20% by volume based on the total amount of the additive in combination with nitrogen oxides and/or compounds which generate nitrogen oxide.
    Type: Application
    Filed: August 16, 2013
    Publication date: February 20, 2014
    Applicant: BASF SE
    Inventors: Jürgen Wortmann, Michael Lutz, Johan Ter Maat, Kerstin Schierle-arndt, Stephan Maurer, Michael Ladenberger, Florian Garlichs, Katharina Kaleta
  • Publication number: 20140049052
    Abstract: Method of maintaining or widening the long-term operating temperature range of a heat transfer medium and/or heat storage medium comprising a nitrate salt composition selected from the group consisting of alkali metal nitrate and alkaline earth metal nitrate and optionally alkali metal nitrite and alkaline earth metal nitrite, wherein all or part of the nitrate salt composition is brought into contact with an additive composed of a combination of elemental oxygen and nitrogen oxides.
    Type: Application
    Filed: August 16, 2013
    Publication date: February 20, 2014
    Applicant: BASF SE
    Inventors: Jürgen Wortmann, Michael Lutz, Johan ter Maat, Kerstin Schierle-Arndt, Stephan Maurer, Michael Ladenberger, Katharina Kaleta, Florian Garlichs
  • Publication number: 20130264514
    Abstract: Nitrate salt composition comprising as significant constituents A) an alkali metal nitrate and optionally an alkali metal nitrite in a total amount in the range from 90 to 99.84% by weight and B) an alkali metal compound selected from the group B1) alkali metal oxide, B2) alkali metal carbonate, B3) alkali metal compound which decomposes into alkali metal oxide or alkali metal carbonate in the temperature range from 250° C. to 600° C., B4) alkali metal hydroxide MetOH, in which Met is lithium, sodium, potassium, rubidium, cesium, B5) alkali metal peroxide Met2O2, in which Met is lithium, sodium, potassium, rubidium, cesium, and B6) alkali metal superoxide MetO2, in which Met is sodium, potassium, rubidium, cesium, in a total amount in the range from 0.16 to 10% by weight, in each case based on the nitrate salt composition.
    Type: Application
    Filed: April 10, 2013
    Publication date: October 10, 2013
    Applicant: BASF SE
    Inventors: Jürgen Wortmann, Michael Lutz, Johan ter Maat, Kerstin Schierle-Arndt, Stephan Maurer, Michael Ladenberger, Karolin Geyer, Florian Garlichs
  • Publication number: 20130056081
    Abstract: The invention relates to a pipeline system for conveying a salt melt, comprising at least one pipeline (5) through which the salt melt flows, at least one inlet and at least one outlet, wherein the pipeline (5) through which the salt melt flows has at least one gradient inclined with respect to the horizontal and is respectively connected at the lowest positions via a drainage valve (25) to a drainage line (27) and at the highest positions to a venting valve (23). The invention furthermore relates to a method for draining the pipeline system.
    Type: Application
    Filed: September 5, 2012
    Publication date: March 7, 2013
    Applicant: BASF SE
    Inventors: Jürgen Wortmann, Michael Lutz, Martin Gärtner, Kerstin Schierle-Arndt, Stephan Maurer, Michael Ladenberger, Karolin Geyer, Florian Garlichs
  • Publication number: 20120292303
    Abstract: The invention relates to a pipeline for carrying a molten salt, with a pipe wall that is stable with respect to the temperatures occurring. A heating conductor (21) is provided inside the pipeline (5) for heating, the heating conductor (21) preferably not lying against the inner wall of the pipeline (5).
    Type: Application
    Filed: May 17, 2012
    Publication date: November 22, 2012
    Applicant: BASF SE
    Inventors: Jürgen Wortmann, Michael Lutz, Marin Gärtner, Kerstin Schierle-Arndt, Stephan Maurer, Michael Ladenberger, Karolin Geyer, Florian Garlichs
  • Publication number: 20120074150
    Abstract: The invention relates to a device for receiving hot, corrosively acting liquids (7), comprising a space enclosed by a wall (21) for receiving the liquid (7), the space having an inner insulation (19). The invention also relates to the use of the device for storing corrosively acting liquids for storing a heat storage medium comprising sulfur.
    Type: Application
    Filed: September 28, 2011
    Publication date: March 29, 2012
    Applicant: BASF SE
    Inventors: Jürgen Wortmann, Michael Lutz, Fabian Seeler, Martin Gärtner, Felix Major, Kerstin Schierle-Arndt, Otto Machhammer, Günther Huber, Stephan Maurer, Karolin Geyer
  • Publication number: 20110271953
    Abstract: The invention relates to a device for storing heat, comprising a heat storage medium which absorbs heat in order to store heat and releases heat in order to use the stored heat, and a container for holding the heat storage medium, the container being closed by a gastight cover, and the device comprising volume compensation means in order to compensate for a volume increase of the heat storage medium (3) due to a temperature rise and a volume decrease due to a temperature reduction.
    Type: Application
    Filed: May 4, 2011
    Publication date: November 10, 2011
    Applicant: BASF SE
    Inventors: Jürgen Wortmann, Claus Schäfer, Michael Lutz, Fabian Seeler, Martin Gärtner, Felix Major, Kerstin Schierle-Arndt, Otto Machhammer, Günther Huber, Stephan Maurer
  • Publication number: 20110247606
    Abstract: Mixture comprising elemental sulfur and an additive comprising anions.
    Type: Application
    Filed: April 8, 2011
    Publication date: October 13, 2011
    Applicant: BASF SE
    Inventors: Felix Major, Fabian Seeler, Florian Garlichs, Martin Gärtner, Stephan Maurer, Jürgen Wortmann, Michael Lutz, Günther Huber, Otto Machhammer, Kerstin Schierle-Arndt
  • Publication number: 20110163258
    Abstract: The present invention relates to mixtures of alkali metal polysulfides and to mixtures of alkali metal polysulfides and alkali metal thiocyanates, to processes for preparation thereof, to the use thereof as heat transfer or heat storage fluids, and to heat transfer or heat storage fluids which comprise the mixtures of alkali metal polysulfides or the mixtures of alkali metal polysulfides and alkali metal thiocyanates.
    Type: Application
    Filed: December 28, 2010
    Publication date: July 7, 2011
    Applicant: BASF SE
    Inventors: Fabian Seeler, Felix Major, Kerstin Schierle-Arndt, Jürgen Wortmann, Martin Gärtner, Michael Lutz, Stephan Maurer, Otto Machhammer, Günther Huber, Hans-Josef Sterzel
  • Publication number: 20050254991
    Abstract: A nickel-based alloy for producing, by casting, components which have solidified in single crystal form, contains rhenium and tungsten, as well as aluminium, chromium and cobalt. The rhenium content is at least 2.3% by weight, and the weight ratio of the tungsten content to the rhenium content is at least 1.1 to at most 1.6.
    Type: Application
    Filed: March 4, 2005
    Publication date: November 17, 2005
    Applicant: MTU AERO ENGINES GmbH
    Inventors: Uwe Glatzel, Thomas Mack, Silke Woellmer, Jurgen Wortmann
  • Patent number: 6936116
    Abstract: A nickel-based alloy for producing, by casting, components which have solidified in single crystal form, contains rhenium and tungsten, as well as aluminium, chromium and cobalt. The rhenium content is at least 2.3% by weight, and the weight ratio of the tungsten content to the rhenium content is at least 1.1 to at most 1.6.
    Type: Grant
    Filed: January 10, 2002
    Date of Patent: August 30, 2005
    Assignee: MTU Aero Engines GmbH
    Inventors: Uwe Glatzel, Thomas Mack, Silke Woellmer, Jürgen Wortmann
  • Publication number: 20020182100
    Abstract: A nickel-based alloy for producing, by casting, components which have solidified in single crystal form, contains rhenium and tungsten, as well as aluminium, chromium and cobalt. The rhenium content is at least 2.3% by weight, and the weight ratio of the tungsten content to the rhenium content is at least 1.1 to at most 1.6.
    Type: Application
    Filed: January 10, 2002
    Publication date: December 5, 2002
    Inventors: Uwe Glatzel, Thomas Mack, Silke Woellmer, Jurgen Wortmann
  • Patent number: 6103993
    Abstract: A hollow structural part having an internal hollow space, preferably a blade for a turbodrive, is made of a metal alloy with a columnar structure solidified in an oriented manner with longitudinally extending grain boundaries. A series of holes are laser drilled in the blade to connect the outer surface of the blade with the hollow space. The blade is formed with a single crystal column in the region where the series of holes are formed so that the holes are away from the grain boundaries. Such structural parts are preferably used as the blade of a rotor and the laser drilled holes serve for supply of cooling air to the leading edge or pressure region of the blade or for influencing the position of the boundary layer on the suction side of the blade, or the laser-drilled holes are shaped as outflow openings for air to intensify a cooling film for increasing the blade efficiency.
    Type: Grant
    Filed: June 21, 1999
    Date of Patent: August 15, 2000
    Assignee: Mtu Motoren-und Turbinen-Union Munchen GmbH
    Inventor: Jurgen Wortmann
  • Patent number: 5353860
    Abstract: A casting unit for the manufacturing of a plurality of cast parts by using directed solidification or monocrystal formation as well as the process for casting is provided. A plurality of individual molds are combined while forming close distances to form a mold shell in the manner of an array. In this manner, the simultaneous casting of a large number of cast parts is permitted while the space requirement is minimized.
    Type: Grant
    Filed: April 6, 1993
    Date of Patent: October 11, 1994
    Assignee: Sulzer-MTU-Casting Technology GmbH
    Inventors: Fritz Staub, Daniel Stahl, Jurgen Wortmann
  • Patent number: 5275228
    Abstract: A process and apparatus for the production of a single-crystal article, such as a turbine blade, by casting a molten metal into a casting mold with a single crystal seed crystal at the bottom of the casting mold. The casting mold is heated and vacuum-purified after which the seed crystal is introduced into an opening at the bottom of the mold in a matter of a few seconds whereafter the molten metal is immediately cast onto the seed crystal in the casting mold. The seed crystal is carried by a holder which is lifted to bring the seed crystal into the open bottom of the casting mold in sealed relation in the mold.
    Type: Grant
    Filed: December 12, 1991
    Date of Patent: January 4, 1994
    Assignee: Sulzer-MTU Casting Technology GmbH
    Inventors: Jurgen Wortmann, Robert Wege, Fritz Staub, Bruno Walser
  • Patent number: 5261480
    Abstract: A process and apparatus for the repair of single-crystal drive blades, such as turbine blades, in which a sound portion of the blade is inserted into an open bottom of a casting mold in communication with a casting cavity in the mold adopted to the shape of the blade. The molten metal is then cast into the mold to unite with the sound portion and an epitaxial single-crystal solidification of the melt is produced on the sound portion to form the entire blade. A part of the sound portion has an outer surface layer thereof removed to expose a core region which is constituted of substantially pure single crystal material prior to casting. The sound part is secured in a holder which is coupled to the casting mold for only a matter of seconds before the molten metal is cast into the mold.
    Type: Grant
    Filed: January 6, 1993
    Date of Patent: November 16, 1993
    Assignee: Sulzer-MTU Casting Technology GmbH
    Inventors: Jurgen Wortmann, Fritz Staub, Bruno Walser
  • Patent number: 5193272
    Abstract: A process for the repair of single-crystal drive blades, such as turbine blades, in which a sound portion of the blade is inserted into an open bottom of a casting mold in communication with a casting cavity in the mold adopted to the shape of the blade. The molten metal is then cast into the mold to unite with the sound portion and an epitaxial single-crystal solidification of the melt is produced on the sound portion to form the entire blade. A part of the sound portion has an outer surface layer thereof removed to expose a core region which is constituted of substantially pure single crystal material prior to casting. The sound part is secured in a holder which is coupled to the casting mold for only a matter of seconds before the molten metal is cast into the mold.
    Type: Grant
    Filed: December 12, 1991
    Date of Patent: March 16, 1993
    Assignee: Sulzer-MTU Casting Technology GmbH
    Inventors: Jurgen Wortmann, Fritz Staub, Bruno Walser