Patents by Inventor Ulf Erik Nilsson

Ulf Erik Nilsson 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 injection system and purging method
    Patent number: 7818955
    Abstract: A fuel injection system has a fuel lance for supplying gaseous fuel to the burner of a gas turbine engine. The fuel lance includes a gas sensor that is used to monitor the concentration of the methane fuel inside the gas pilot channel of the fuel lance. The invention prevents overheating caused by the ignition of the methane fuel inside the fuel lance by monitoring the concentration of the methane fuel during the purge sequence and taking action if a critical fuel air mixture is reached.
    Type: Grant
    Filed: February 3, 2006
    Date of Patent: October 26, 2010
    Assignee: Alstom Technology Ltd
    Inventor: Ulf Erik Nilsson