Patents by Inventor Dietmar Rottger

Dietmar Rottger 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: 8137063
    Abstract: The aim of the invention is to provide a superheated component of a steam turbine installation with high thermal and mechanical resistance. To this end, the component comprises a lining applied to a body of the component, on a hot side facing a steam chamber, said lining being adapted to the contour of the component body. According to the invention, the lining comprises a number of molded parts, each molded part comprising a metallic and ceramic composite layer formed from at least one metallic layer and at least one ceramic layer. The ceramic layer is used especially as a insulating layer, and the metallic layer is especially used as a support or for protection against abrasion and/or erosion.
    Type: Grant
    Filed: March 13, 2006
    Date of Patent: March 20, 2012
    Assignee: Siemens Aktiengesellschaft
    Inventors: Detlef Haje, Dietmar Röttger, Friedhelm Schmitz
  • Publication number: 20090041578
    Abstract: The aim of the invention is to provide a superheated component of a steam turbine installation with high thermal and mechanical resistance. To this end, the component comprises a lining applied to a body of the component, on a hot side facing a steam chamber, said lining being adapted to the contour of the component body. According to the invention, the lining comprises a number of moulded parts, each moulded part comprising a metallic and ceramic composite layer formed from at least one metallic layer and at least one ceramic layer. The ceramic layer is used especially as a insulating layer, and the metallic layer is especially used as a support or for protection against abrasion and/or erosion.
    Type: Application
    Filed: March 13, 2006
    Publication date: February 12, 2009
    Inventors: Detlef Haje, Dietmar Rottger, Friedhelm Schmitz
  • Patent number: 7101144
    Abstract: The proposed steam turbine rotor extends along an axial extent and includes: an outer side which adjoins an outer space which is intended to receive a main flow of a fluid working medium, a first location along the outer side, at which a first blade is held, a second location along the outer side, at which a second blade is held, the second location being arranged behind the first location along the axial extent. To ensure sufficient cooling, there is at least one integrated passage, which extends continuously at least between a first region arranged in front of the first location and a second region arranged behind the second location The invention proposes a method and a use in which a fluid cooling medium is guided in a corresponding way.
    Type: Grant
    Filed: February 5, 2004
    Date of Patent: September 5, 2006
    Assignee: Siemens Aktiengesellschaft
    Inventors: Detlef Haje, Dietmar Röttger
  • Patent number: 7086828
    Abstract: A steam turbine (20) having a rotor (21) which is provided with a number of rotor blades (22) and, together with a number of guide vanes (24), is arranged inside a casing shell (30) formed from a number of casing segments is to be designed to be suitable for operation with relatively high steam parameters, i.e. in particular with a particularly high steam temperature and a particularly high steam pressure. For this purpose, according to the invention active cooling of the casing shell (30) is provided, at least one of the casing segments which form the casing shell being provided with a number of integrated cooling channels (29). When the steam turbine (20) is operating, therefore, the casing shell (30) is actively cooled with a cooling medium by the latter being supplied to the cooling channels (29).
    Type: Grant
    Filed: January 29, 2004
    Date of Patent: August 8, 2006
    Assignee: Siemens Aktiengesellschaft
    Inventors: Detlef Haje, Dietmar Röttger
  • Publication number: 20040247433
    Abstract: In previously known steam turbines (1) a rotor is either only cooled passively or is cooled actively only to a limited extent in a region where the working medium flows in. As the loading on the rotor increases as a result of high steam parameters of the working medium, sufficient cooling of the steam turbine rotor is no longer ensured. The proposed steam turbine rotor (21, 30, 75) extends along an axial extent (25, 34) and includes: an outer side (26a) which adjoins an outer space (27a, 35) which is intended to receive a main flow (27, 36) of a fluid working medium (8), a first A location (30a) along the outer side (26a), at which a first blade (41a) is held, a second location (30b) along the outer side (26a, 33), at which a second blade (41b) is held, the second location (30b) being arranged behind the first location (30a) along the axial extent (25, 34).
    Type: Application
    Filed: February 5, 2004
    Publication date: December 9, 2004
    Inventors: Detlef Haje, Dietmar Rottger
  • Publication number: 20040184908
    Abstract: A steam turbine (20) having a rotor (21) which is provided with a number of rotor blades (22) and, together with a number of guide vanes (24), is arranged inside a casing shell (30) formed from a number of casing segments is to be designed to be suitable for operation with relatively high steam parameters, i.e. in particular with a particularly high steam temperature and a particularly high steam pressure. For this purpose, according to the invention active cooling of the casing shell (30) is provided, at least one of the casing segments which form the casing shell being provided with a number of integrated cooling channels (29). When the steam turbine (20) is operating, therefore, the casing shell (30) is actively cooled with a cooling medium by the latter being supplied to the cooling channels (29).
    Type: Application
    Filed: January 29, 2004
    Publication date: September 23, 2004
    Inventors: Detlef Haje, Dietmar Rottger