Patents by Inventor Wolfgang Lottes

Wolfgang Lottes 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).

  • Converter arrangement with an air cooling system
    Patent number: 8854807
    Abstract: A converter arrangement includes a housing having a first cooling air channel, at least one capacitor disposed in the housing, a fan for generating a cooling air flow, and a first power electronics module disposed in the housing between the at least one capacitor and the fan, as viewed in a direction of the cooling air flow. The first power electronics module is positioned in relation to the fan so as to only be cooled by a first partial air flow. A second partial air flow provided for cooling the at least one capacitor is routed via the first cooling air channel past the first power electronics module such that the second partial air flow is thermally separated from the first power electronics module.
    Type: Grant
    Filed: August 1, 2012
    Date of Patent: October 7, 2014
    Assignee: Siemens Aktiengesellschaft
    Inventors: Ingolf Hoffmann, Wolfgang Lottes
  • CONVERTER ARRANGEMENT WITH AN AIR COOLING SYSTEM
    Publication number: 20130039008
    Abstract: A converter arrangement includes a housing having a first cooling air channel, at least one capacitor disposed in the housing, a fan for generating a cooling air flow, and a first power electronics module disposed in the housing between the at least one capacitor and the fan, as viewed in a direction of the cooling air flow. The first power electronics module is positioned in relation to the fan so as to only be cooled by a first partial air flow. A second partial air flow provided for cooling the at least one capacitor is routed via the first cooling air channel past the first power electronics module such that the second partial air flow is thermally separated from the first power electronics module.
    Type: Application
    Filed: August 1, 2012
    Publication date: February 14, 2013
    Applicant: Siemens Aktiengesellschaft
    Inventors: Ingolf Hoffmann, Wolfgang Lottes