Patents by Inventor Gerhard Span

Gerhard Span 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: 20200333052
    Abstract: A thermoelectric flexible mat may include a first large surface and a second large surface. The mat may also include a plurality of p-doped elements and a plurality of n-doped elements disposed in an alternating manner with one another and electrically interconnected to a series circuit via a plurality of electrically conductive conductor bridges. The plurality of conductor bridges of the series circuit may be assigned, at least in regions, to the first large surface and the second large surface such that the first large surface defines a hot side and the second large surface defines a cold side. An absorptive absorption structure may connect the hot side and the cold side. The absorption structure may be structured and arranged such that any liquid present on the cold side is absorbable into the absorption structure and transportable to the hot side via the absorption structure.
    Type: Application
    Filed: April 17, 2020
    Publication date: October 22, 2020
    Inventors: Juergen Gruenwald, Stefan Hoppe, Thomas Pfadler, Gerhard Span, Arno Wehner
  • Patent number: 9957602
    Abstract: The invention relates to a method for producing thermoelectric layers by depositing thermoelectric material on a substrate by means of sputter deposition. In order to create a method for producing thermoelectric layers that are better suited for use in thermogenerators, and in particular have higher Seebeck coefficients, the production of a target made of thermoelectric material is proposed by mixing at least two powdered starting materials having a particle size from 0.01 ?m-5000 ?m, while coupling in energy and depositing the thermoelectric material from the target on the substrate by way of magnetron sputter deposition.
    Type: Grant
    Filed: June 10, 2010
    Date of Patent: May 1, 2018
    Assignee: MAHLE INTERNATIONAL GMBH
    Inventors: Ralph Teunissen, Gerhard Span
  • Patent number: 9899588
    Abstract: A thermoelectric element having high thermal resistance and requiring less semiconductor material than a conventional thermoelectric element with comparable performance comprises a substrate having a substrate front side and a substrate rear side opposite the substrate front side, a first contact, applied as a layer to the substrate front side, a second contact, applied as a layer to the substrate front side, a cut-off between the first and second contact which thermally and electrically separates the first and second contact from one another, and a thermoelectrically active layer having a top side and a bottom side, which are connected to one another by lateral delimiting surfaces, wherein the thermoelectrically active layer is arranged in the cut-off in such a way that the bottom side is on the substrate front side, and one of the lateral delimiting surfaces is against the first contact and one of the lateral delimiting surfaces is against the second contact.
    Type: Grant
    Filed: January 17, 2013
    Date of Patent: February 20, 2018
    Assignee: O-FLEXX TECHNOLOGIES GMBH
    Inventors: Gerhard Span, Arwed Siegloch, Juergen Haferkamp, Nikolay Iosad
  • Publication number: 20160172572
    Abstract: A method for deposition of thermoelectric material on a substrate includes synthesizing nanoparticles of thermoelectric material and providing the nanoparticles in such a way that the printing operations can be implemented optimally, yet with the possibility of pressureless sintering thereafter. Pressureless sintering leads to dense layers, endowing the material with the mechanical and thermoelectric properties obtained by other methods. To prevent the nanoparticles reacting with one another during printing, they are coated with a molecular layer that prevents their aggregation and so leads to their homogeneous distribution in the ink or that renders the powders non-electroconductive for the purposes of laser printing, allowing them to be electrostatically charged so as to operate as toners. After the printing operation, this molecular layer is removed by a pressureless sintering treatment that confers a highly reactive surface on the particles.
    Type: Application
    Filed: July 17, 2014
    Publication date: June 16, 2016
    Inventors: Gerhard SPAN, Nikolay IOSAD
  • Publication number: 20150349233
    Abstract: A carrier element includes a coupling to a heat source, a coupling to a heat sink, and a thermoelectric thin-layer element with a hot side and a cold side, arranged on the carrier element between the coupling to the heat source and the coupling to the heat sink. The hot side is in thermally conductive contact with the coupling to the heat source, and the cold side is in thermally conductive contact with the coupling to the heat sink. To avoid damaging tensile and shear stresses in the thermoelectric thin-layer element, especially in the thermoelectrically active material, while ensuring good thermal coupling at the same time, at least one elastic and/or flexible compensating section of the carrier element is set up between the coupling to the heat source and the coupling to the heat sink in such a way that it compensates for the difference between the expansions of the heat source and those of the heat sink by a change of shape of the compensating section.
    Type: Application
    Filed: March 5, 2014
    Publication date: December 3, 2015
    Inventors: Gerhard SPAN, Christian VITEK, Stefan HOPPE
  • Patent number: 8952235
    Abstract: The invention relates to an arrangement comprising a thermo-electric generator having a hot side which absorbs heat from a heat source, a cold side which discharges heat to a heat sink, and electrical terminals for outputting electrical energy with an output voltage and an electric circuit with a maximum permissible input voltage, the inputs of which are connected to the electrical terminals of the thermo-electric generator. Such arrangements may be used, for example, in exhaust systems of motor vehicles for more efficient use of the energy.
    Type: Grant
    Filed: March 7, 2012
    Date of Patent: February 10, 2015
    Assignee: O-Flexx Technologies GmbH
    Inventors: Gerhard Span, Martin Wagner
  • Publication number: 20150034140
    Abstract: A thermoelectric element having high thermal resistance and requiring less semiconductor material than a conventional thermoelectric element with comparable performance comprises a substrate having a substrate front side and a substrate rear side opposite the substrate front side, a first contact, applied as a layer to the substrate front side, a second contact, applied as a layer to the substrate front side, a cut-off between the first and second contact which thermally and electrically separates the first and second contact from one another, and a thermoelectrically active layer having a top side and a bottom side, which are connected to one another by lateral delimiting surfaces, wherein the thermoelectrically active layer is arranged in the cut-off in such a way that the bottom side is on the substrate front side, and one of the lateral delimiting surfaces is against the first contact and one of the lateral delimiting surfaces is against the second contact.
    Type: Application
    Filed: January 17, 2013
    Publication date: February 5, 2015
    Inventors: Gerhard Span, Arwed Siegloch, Juergen Haferkamp, Nikolay Iosad
  • Patent number: 8766083
    Abstract: A thermoelectric element includes at least one thermopair and a pn-junction. The thermopair has a first material with a positive Seebeck coefficient and a second material with a negative Seebeck coefficient. The first material is selectively contacted by way of a conductor with the p-side of the pn-junction, and the second material is selectively contacted by way of a conductor with the n-side of the pn-junction.
    Type: Grant
    Filed: October 18, 2012
    Date of Patent: July 1, 2014
    Inventor: Gerhard Span
  • Publication number: 20130312803
    Abstract: The invention relates to an arrangement comprising a thermo-electric generator having a hot side which absorbs heat from a heat source, a cold side which discharges heat to a heat sink, and electrical terminals for outputting electrical energy with an output voltage and an electric circuit with a maximum permissible input voltage, the inputs of which are connected to the electrical terminals of the thermo-electric generator. Such arrangements may be used, for example, in exhaust systems of motor vehicles for more efficient use of the energy.
    Type: Application
    Filed: March 7, 2012
    Publication date: November 28, 2013
    Applicant: O-FLEXX TECHNOLOGIES GMBH
    Inventors: Gerhard Span, Martin Wagner
  • Publication number: 20130081665
    Abstract: A thermoelectric element includes at least one thermocouple comprising an n-doped and a p-doped thermal leg made of semiconductor material, wherein the thermal legs extend between a hot and a cold side of the thermoelectric element and different temperatures can applied and tapped between the hot and the cold side. In order to create a thermoelectric element haying a high thermal power density that nevertheless ensures sufficient mechanical stability using less semiconductor material, the thermoelectric effect and the support function of the block between two components is split.
    Type: Application
    Filed: May 12, 2011
    Publication date: April 4, 2013
    Applicant: O-FLEXX TECHNOLOGIES GMBH
    Inventor: Gerhard Span
  • Publication number: 20130042900
    Abstract: A thermoelectric element includes at least one thermopair and a pn-junction. The thermopair has a first material with a positive Seebeck coefficient and a second material with a negative Seebeck coefficient. The first material is selectively contacted by way of a conductor with the p-side of the pn-junction, and the second material is selectively contacted by way of a conductor with the n-side of the pn-junction.
    Type: Application
    Filed: October 18, 2012
    Publication date: February 21, 2013
    Inventor: Gerhard SPAN
  • Patent number: 8373057
    Abstract: A thermoelectric element includes at least one thermopair and a pn-junction. The thermopair has a first material with a positive Seebeck coefficient and a second material with a negative Seebeck coefficient. The first material is selectively contacted by way of a conductor with the p-side of the pn-junction, and the second material is selectively contacted by way of a conductor with the n-side of the pn-junction.
    Type: Grant
    Filed: June 27, 2008
    Date of Patent: February 12, 2013
    Inventor: Gerhard Span
  • Publication number: 20120152729
    Abstract: The invention relates to a method for producing thermoelectric layers by depositing thermoelectric material on a substrate by means of sputter deposition. In order to create a method for producing thermoelectric layers that are better suited for use in thermogenerators, and in particular have higher Seebeck coefficients, the production of a target made of thermoelectric material is proposed by mixing at least two powdered starting materials having a particle size from 0.01 ?m-5000 ?m, while coupling in energy and depositing the thermoelectric material from the target on the substrate by way of magnetron sputter deposition.
    Type: Application
    Filed: June 10, 2010
    Publication date: June 21, 2012
    Applicant: O-Flexx Technologies GmbH
    Inventors: Ralph Teunissen, Gerhard Span
  • Publication number: 20090014047
    Abstract: A thermoelectric element includes at least one thermopair and a pn-junction. The thermopair has a first material with a positive Seebeck coefficient and a second material with a negative Seebeck coefficient. The first material is selectively contacted by way of a conductor with the p-side of the pn-junction, and the second material is selectively contacted by way of a conductor with the n-side of the pn-junction.
    Type: Application
    Filed: June 27, 2008
    Publication date: January 15, 2009
    Inventor: Gerhard Span
  • Patent number: 6762484
    Abstract: The invention relates to a thermoelectric element comprising at least one n-type layer (1) and at least one p-type layer (2) of one or more doped semiconductors, whereby the n-type layer(s) (2) are arranged to form at least one pn-type junction (3). At least one n-type layer (1) and at least one p-type (2) are contacted in an electrically selective manner, and a temperature gradient (T1, T2) is applied or tapped parallel (x-direction) to the boundary layer (3) between at the least one n-type layer (1) and p-type layer (2). At least one pn-type junction is formed essentially along the entire, preferably longest, extension of the n-type layer(s) (1) and the p-type layer(s) (2) and, thus, essentially along the entire boundary layer (3) thereof.
    Type: Grant
    Filed: October 25, 2002
    Date of Patent: July 13, 2004
    Inventor: Gerhard Span
  • Publication number: 20030042497
    Abstract: The invention relates to a thermoelectric element comprising at least one n-type layer (1) and at least one p-type layer (2) of one or more doped semiconductors, whereby the n-type layer(s) (2) are arranged to form at least one pn-type junction (3). At least one n-type layer (1) and at least one p-type (2) are contacted in an electrically selective manner, and a temperature gradient (T1, T2) is applied or tapped parallel (x-direction) to the boundary layer (3) between at least one n-type layer (1) and p-type layer (2). At least one pn-type junction is formed essentially along the entire, preferably longest, extension of the n-type layer(s) (1) and of the p-type layer(s) (2) and thus essentially along the entire boundary layer (3) thereof.
    Type: Application
    Filed: October 25, 2002
    Publication date: March 6, 2003
    Inventor: Gerhard Span