Patents by Inventor Patrick Welz

Patrick Welz 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).

  • Steam turbine and method of feeding bypass steam
    Patent number: 6572328
    Abstract: A steam turbine for a combined gas and steam-turbine power plant process, including at least one valve arrangement for the controlled feeding of live steam into the steam turbine is disclosed. The valve arrangement has a quick-closing valve and at least one live-steam control valve assigned to the quick-closing valve. In addition, the steam turbine has a live-steam bypass, which, feeds live steam as “bypass steam” into the high-pressure region of the steam turbine through at least one bypass line and through a bypass feed assigned to each bypass line, but after the first turbine moving-blade row, as viewed downstream of the steam-turbine inlet region. At least one live-steam control valve and at least one bypass control valve are assigned to at least one quick-closing valve. Further, a method of feeding bypass steam into the steam turbine is disclosed.
    Type: Grant
    Filed: August 29, 2001
    Date of Patent: June 3, 2003
    Assignee: Alstom (Switzerland) Ltd.
    Inventors: Alexander Tremmel, Patrick Welz
  • Steam turbine and method of feeding bypass steam
    Publication number: 20020081191
    Abstract: A steam turbine for a combined gas and steam-turbine power plant process, including at least one valve arrangement for the controlled feeding of live steam into the steam turbine is disclosed. The valve arrangement has a quick-closing valve and at least one live-steam control valve assigned to the quick-closing valve. In addition, the steam turbine has a live-steam bypass, which, feeds live steam as “bypass steam” into the high-pressure region of the steam turbine through at least one bypass line and through a bypass feed assigned to each bypass line, but after the first turbine moving-blade row, as viewed downstream of the steam-turbine inlet region. At least one live-steam control valve and at least one bypass control valve are assigned to at least one quick-closing valve. Further, a method of feeding bypass steam into the steam turbine is disclosed.
    Type: Application
    Filed: August 29, 2001
    Publication date: June 27, 2002
    Inventors: Alexander Tremmel, Patrick Welz