Patents by Inventor Hanspeter Hardegger

Hanspeter Hardegger 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).

  • Patent number: 7963764
    Abstract: A lance for a hybrid burner of a combustor of a gas turbine, includes an inner passage for a liquid fuel, an outer passage coaxially enclosing the inner passage for a gaseous fuel, a plurality of star like arranged outer nozzles branching off radially from the outer passage, a plurality of inner nozzles, which branch off radially from the inner passage and which each extend coaxially inside one of the outer nozzles, and a distributor section, which is arranged upstream of the outer nozzles in the outer passage and has a plurality of star like arranged, coaxially extending through-openings for the gaseous fuel. In order to reduce the flow resistance in the gas path of the lance, the through-openings each have an opening width which is larger in the circumferential direction than in the radial direction.
    Type: Grant
    Filed: February 23, 2007
    Date of Patent: June 21, 2011
    Assignee: Alstom Technology Ltd
    Inventors: Andreas Brautsch, Hanspeter Hardegger, Daniel Burri, Bettina Paikert
  • Publication number: 20070207425
    Abstract: A lance for a hybrid burner of a combustor of a gas turbine, includes an inner passage for a liquid fuel, an outer passage coaxially enclosing the inner passage for a gaseous fuel, a plurality of star like arranged outer nozzles branching off radially from the outer passage, a plurality of inner nozzles, which branch off radially from the inner passage and which each extend coaxially inside one of the outer nozzles, and a distributor section, which is arranged upstream of the outer nozzles n the outer passage and has a plurality of star like arranged, coaxially extending through-openings for the gaseous fuel. In order to reduce the flow resistance in the gas path of the lance, the through-openings each have an opening width which is larger in the circumferential direction than in the radial direction.
    Type: Application
    Filed: February 23, 2007
    Publication date: September 6, 2007
    Applicant: ALSTOM TECHNOLOGY LTD.
    Inventors: Andreas Brautsch, Hanspeter Hardegger, Daniel Burri, Bettina Paikert