Patents by Inventor Guido Klewer

Guido Klewer 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).

  • Aircraft air-conditioning unit and method for operating an aircraft air-conditioning unit
    Publication number: 20090211273
    Abstract: An aircraft air-conditioning unit (10) includes a compressor (18) and a motor (20) driving the compressor (18). A fuel cell system (24) is connected directly to a control unit (22) for controlling the motor (20) driving the compressor (18), wherein the control unit (22) is adapted to convert electrical energy directly generated by the fuel cell system (24) into corresponding electrical control signals for controlling the motor (20) driving the compressor (18). In a method for operating an aircraft air-conditioning unit (10), which includes a compressor (18) and a motor (20) driving the compressor (18), a control unit (22) for controlling the motor (20) driving the compressor (18), which is directly connected to a fuel cell system (24), converts electrical energy directly generated by the fuel cell system (24) into corresponding electrical control signals for controlling the motor (20) driving the compressor (18).
    Type: Application
    Filed: January 30, 2009
    Publication date: August 27, 2009
    Inventor: Guido Klewer