Patents by Inventor Wilfried Ulm

Wilfried Ulm 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
    Patent number: 6345952
    Abstract: A steam turbine has a turbine shaft directed along a turbine axis. A plurality of turbine stages, each include a guide-blade structure and a moving-blade configuration located axially downstream of the guide-blade structure. The guide-blade structure and the moving-blade configuration are provided along the turbine shaft. Each stage has an average reaction degree achievable between 5% and 70%. The reaction degree of at least two turbine stages is of different values.
    Type: Grant
    Filed: July 14, 1999
    Date of Patent: February 12, 2002
    Assignee: Siemens Aktiengesellschaft
    Inventors: Heinrich Oeynhausen, Wilfried Ulm, Ralf Bell, Ulrich Capelle, Jan-Erik Mühle, Mikhail Simkine, Ingo Stephan, Volker Simon
  • Steam turbine and blade or vane for a steam turbine
    Patent number: 6213711
    Abstract: The invention relates to a steam turbine (1) which has a flow duct (2) with a wall (3). Blading (5) is arranged in blading rings (55) in the flow duct (2). The wall (3) of the flow duct (2) has a grooved structure (6) which purposefully influences the flow of an active fluid (13) through the flow duct (2). In particular, a spacing surface (31) with a grooved structure (6) is located between each two blades or vanes (5) of a blading ring (55). The invention also relates to a blade or vane for a steam turbine.
    Type: Grant
    Filed: October 1, 1999
    Date of Patent: April 10, 2001
    Assignee: Siemens Aktiengesellschaft
    Inventors: Karl-Heinrich Müller, Wilfried Ulm, Ralf Bell, Volker Simon