Patents by Inventor Erich Joel Drees

Erich Joel Drees 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).

  • Power electronics inverter with capacitor cooling
    Patent number: 8780557
    Abstract: A power electronics inverter includes a housing which forms a cold plate with coolant passages. The housing encloses an insulated gate bipolar transistor (IGBT), and a DC Link capacitor. The capacitor comprises a bus-bar which exits from a bottom side of the capacitor, and the bus-bar is positioned adjacent to the cold plate. The cold plate forms a cooling passage which underlies the IGBT and the capacitor bus-bar. Thermally conductive gap pads are located between the capacitor bus-bar and the cold plate.
    Type: Grant
    Filed: February 11, 2011
    Date of Patent: July 15, 2014
    Assignee: Deere & Company
    Inventors: Jeffrey Scott Duppong, David Michael Loken, Erich Joel Drees
  • POWER ELECTRONICS INVERTER WITH CAPACITOR COOLING
    Publication number: 20120206950
    Abstract: A power electronics inverter includes a housing which forms a cold plate with coolant passages. The housing encloses an insulated gate bipolar transistor (IGBT), and a DC Link capacitor. The capacitor comprises a bus-bar which exits from a bottom side of the capacitor, and the bus-bar is positioned adjacent to the cold plate. The cold plate forms a cooling passage which underlies the IGBT and the capacitor bus-bar. Thermally conductive gap pads are located between the capacitor bus-bar and the cold plate.
    Type: Application
    Filed: February 11, 2011
    Publication date: August 16, 2012
    Inventors: Jeffrey Scott Duppong, David Michael Loken, Erich Joel Drees