Patents by Inventor Gerhard Hulsemann

Gerhard Hulsemann 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).

  • Liquid Injection in a Gas Turbine During a Cooling Down Phase
    Publication number: 20070251210
    Abstract: The invention relates to a method for cooling a gas turbine comprising a rotor, said method being carried out after the operation of the gas turbine and whereby the rotor is driven at least intermittently during a cooling phase at a reduced nominal speed. To provide a gas turbine with a reduced down time, a liquid is introduced at least intermittently into the air stream upstream of the compressor during the cooling phase.
    Type: Application
    Filed: August 12, 2005
    Publication date: November 1, 2007
    Inventors: Hajrudin Ceric, Giuseppe Gaio, Frank Gunther, Armin Hulfenhaus, Gerhard Hulsemann, Gabriel Jungnickel-Marques, Stefan Wanz
  • Method for setting a radial gap of an axial-throughflow turbomachine and compressor
    Publication number: 20060245910
    Abstract: The invention relates a method for improving the hot-starting behavior of a turbomachine. By virtue of the setting of a radial gap formed between a brushing edge of a blade profile and a guide face lying opposite this, in which setting a guide ring forming the guide face can be acted upon with a coolant, the hot-starting behavior can be improved, in that the guide ring is cooled before the start of the machine.
    Type: Application
    Filed: April 28, 2006
    Publication date: November 2, 2006
    Inventors: Tobias Buchal, Gerhard Hulsemann, Mirko Milazar, Dierer Minninger, Michael Neubauer, Harald Nimptsch, Heinrich Putz, Kang Qian, Arnd Reichert, Volker Vosberg