Patents by Inventor Joerg Au

Joerg Au 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).

  • Main gas duct internal seal of a high-pressure turbine
    Patent number: 7121791
    Abstract: A high-pressure turbine of a gas-turbine engine provided with a turbine disk (1) carrying rotor blades (2) and with stator blades (3), and with a lateral wheel cavity (5) being formed between the turbine disk (1) and the stator ring (4), wherein a seal (8) is provided in axial direction between stator blade platforms (6) and rotor blade platforms (7) and which is arranged radially outwardly adjacent a main gas duct (9).
    Type: Grant
    Filed: April 21, 2004
    Date of Patent: October 17, 2006
    Assignee: Rolls-Royce Deutschland Ltd & Co KG
    Inventors: Winfried-Hagen Friedl, Joerg Au
  • Main gas duct internal seal of a high-pressure turbine
    Publication number: 20050095122
    Abstract: A high-pressure turbine of a gas-turbine engine provided with a turbine disk (1) carrying rotor blades (2) and with stator blades (3), and with a lateral wheel cavity (5) being formed between the turbine disk (1) and the stator ring (4), wherein a seal (8) is provided in axial direction between stator blade platforms (6) and rotor blade platforms (7) and which is arranged radially outwardly adjacent a main gas duct (9).
    Type: Application
    Filed: April 21, 2004
    Publication date: May 5, 2005
    Inventors: Winfried-Hagen Friedl, Joerg Au
  • Device for air mass flow control
    Patent number: 6779967
    Abstract: A device for air mass flow control in a gas turbine engine includes at least one inlet duct 1, which can issue into an air duct 2, a counter-pressure duct 3, and a double-action shut-off element, which is connected between the counter-pressure duct 3 and the inlet duct 1 and is responsive to pressure differences between the two ducts to control air flow in the air duct 2.
    Type: Grant
    Filed: December 12, 2002
    Date of Patent: August 24, 2004
    Assignee: Rolls-Royce Deutschland Ltd & Co KG
    Inventors: Winfried-Hagen Friedl, Joerg Au
  • Gas turbine with device for extracting work from disk cooling air
    Publication number: 20040112064
    Abstract: A gas turbine includes at least one compressor 1 and at least one turbine 2, wherein one portion of the air leaving the compressor 1 is delivered to a combustion chamber 3 and a further portion is extracted as cooling air, wherein at least one portion of the cooling air flow 4 is directed through a secondary air turbine 5, for extracting energy.
    Type: Application
    Filed: September 23, 2003
    Publication date: June 17, 2004
    Inventors: Winfried-Hagen Friedl, Joerg Au
  • Device for air mass flow control
    Publication number: 20030161719
    Abstract: A device for air mass flow control in a gas turbine engine includes at least one inlet duct 1, which can issue into an air duct 2, a counter-pressure duct 3, and a double-action shut-off element, which is connected between the counter-pressure duct 3 and the inlet duct 1 and is responsive to pressure differences between the two ducts to control air flow in the air duct 2.
    Type: Application
    Filed: December 12, 2002
    Publication date: August 28, 2003
    Inventors: Winfried-Hagen Friedl, Joerg Au