Patents by Inventor Stefan Pfitzer

Stefan Pfitzer 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).

  • Fuel cell system having a fuel cell arranged in a housing
    Patent number: 9065094
    Abstract: A fuel cell system includes at least one fuel cell arranged in a housing and an conveyor means for air supply for a cathode region of this fuel cell. A partial air flow branches off from the supply air to the fuel cell after the conveyor, the partial air flow flowing as bearing air and/or cooling air at least through a part of the conveyor. The partial air flow flows in the flow direction before or after the conveyor as scavenging air through the housing of the fuel cell.
    Type: Grant
    Filed: April 16, 2011
    Date of Patent: June 23, 2015
    Assignee: Daimler AG
    Inventors: Rainer Merth, Stefan Pfitzer
  • Fuel Cell System Having a Fuel Cell Arranged in a Housing
    Publication number: 20130089800
    Abstract: A fuel cell system includes at least one fuel cell arranged in a housing and an conveyor means for air supply for a cathode region of this fuel cell. A partial air flow branches off from the supply air to the fuel cell after the conveyor, the partial air flow flowing as bearing air and/or cooling air at least through a part of the conveyor. The partial air flow flows in the flow direction before or after the conveyor as scavenging air through the housing of the fuel cell.
    Type: Application
    Filed: April 16, 2011
    Publication date: April 11, 2013
    Applicant: Daimler AG
    Inventors: Rainer Merth, Stefan Pfitzer