Patents by Inventor Klaus Graage

Klaus Graage 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 installation with a gas generation system and a fuel cell system
    Patent number: 6926978
    Abstract: A fuel cell installation containing a gas generation system, for the production of a hydrogen-containing gas, and a fuel cell system, which comprises a fuel cell, a compressor, an expander that is coupled with the compressor and a burner, the exhaust gases of which are directed to the expander. The gas generation system and the fuel cell system are designed as independent modules with respect to the supply of energy and process streams. Energy storage and energy conversion devices are arranged between the expander and the compressor in the fuel cell system.
    Type: Grant
    Filed: August 12, 2002
    Date of Patent: August 9, 2005
    Assignee: Ballard Power Systems AG
    Inventor: Klaus Graage
  • Starter device for fuel cell system
    Patent number: 6559551
    Abstract: A starter device, preferably for cold-starting, for fuel cell systems, including a current generation system, for generating electrical energy, and a gas generation system, for generating H2-rich gas for the current generation system. An internal-combustion engine generates mechanical energy, which can be connected to an air compressor for supplying air to the gas generation system via a drive shaft.
    Type: Grant
    Filed: September 24, 2001
    Date of Patent: May 6, 2003
    Assignee: Ballard Power Systems AG
    Inventors: Klaus Graage, Detlef Zur Megede
  • Fuel cell installation with a gas generation system and a fuel cell system
    Publication number: 20030035988
    Abstract: A fuel cell installation containing a gas generation system, for the production of a hydrogen-containing gas, and a fuel cell system, which comprises a fuel cell, a compressor, an expander that is coupled with the compressor and a burner, the exhaust gases of which are directed to the expander. The gas generation system and the fuel cell system are designed as independent modules with respect to the supply of energy and process streams. Energy storage and energy conversion devices are arranged between the expander and the compressor in the fuel cell system.
    Type: Application
    Filed: August 12, 2002
    Publication date: February 20, 2003
    Applicant: Ballard Power Systems AG
    Inventor: Klaus Graage
  • Method and apparatus for starting a vehicle
    Publication number: 20020092690
    Abstract: A system for starting a vehicle operated particularly by means of a fuel cell system includes devices for the arbitrary initiation of a starting operation of the fuel cell system or of a starting preparation of the vehicle independently of the presence of a driver in the direct proximity of the vehicle, particularly inside the vehicle.
    Type: Application
    Filed: November 30, 2001
    Publication date: July 18, 2002
    Inventors: Uwe Benz, Klaus Graage, Gerald Hornburg, Josef Sonntag, Detlef Zur Megede
  • Starter device for fuel cell system
    Publication number: 20020047270
    Abstract: A starter device, preferably for cold-starting, for fuel cell systems, including a current generation system, for generating electrical energy, and a gas generation system, for generating H2-rich gas for the current generation system. An internal-combustion engine generates mechanical energy, which can be connected to an air compressor for supplying air to the gas generation system via a drive shaft.
    Type: Application
    Filed: September 24, 2001
    Publication date: April 25, 2002
    Inventors: Klaus Graage, Detlef Zur Megede
  • Energy supply unit on board an aircraft
    Patent number: 6296957
    Abstract: An energy supply unit on board on aircraft comprises a fuel cell (1) as an energy converter for generating electrical energy to power various aircraft electrical systems.
    Type: Grant
    Filed: May 17, 1999
    Date of Patent: October 2, 2001
    Assignee: Xcellsis GmbH
    Inventor: Klaus Graage