Patents by Inventor Daniel Bala Wortberg

Daniel Bala Wortberg 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).

  • Method for manufacturing a turbine wheel rotor
    Patent number: 6899522
    Abstract: A method for connecting a wheel, such as a turbine wheel or compressor wheel, in a turbine wheel rotor. The method includes providing a shaft made of steel, and pouring a casting alloy around an end of the shaft, wherein the casting alloy includes an intermetallic compound of the system TiAl. The method is particularly well-suited making a connection of the turbine wheel and the shaft of an exhaust-gas turbocharger for motor vehicles using a casting process. In addition, a turbine wheel rotor, that includes a steel shaft, a cast wheel including a casting alloy fixedly connected to an end of the shaft. The casting alloy including an intermetallic compound of the system TiAl. A connection between the cast wheel and the shaft includes at least one of a friction fit, a positive fit, and an integral connection.
    Type: Grant
    Filed: February 28, 2003
    Date of Patent: May 31, 2005
    Assignee: DaimlerChrysler AG
    Inventors: Hartmut Baur, Peter Busse, Peter Fledersbacher, Daniel Bala Wortberg
  • Method for manufacturing a multi-part valve for internal combustion engines
    Patent number: 6868814
    Abstract: For making an interconnection between a valve head and stem, the interconnection between these parts is made by pouring a cast alloy around the stem end. A connection and a valve are also provided.
    Type: Grant
    Filed: February 27, 2003
    Date of Patent: March 22, 2005
    Assignee: DaimlerChrysler AG
    Inventors: Hartmut Baur, Peter Busse, Daniel Bala Wortberg
  • Method for manufacturing a turbine wheel rotor
    Publication number: 20040009072
    Abstract: A method for connecting a wheel, such as a turbine wheel or compressor wheel, in a turbine wheel rotor. The method includes providing a shaft made of steel, and pouring a casting alloy around an end of the shaft, wherein the casting alloy includes an intermetallic compound of the system TiAl. The method is particularly well-suited making a connection of the turbine wheel and the shaft of an exhaust-gas turbocharger for motor vehicles using a casting process. In addition, a turbine wheel rotor, that includes a steel shaft, a cast wheel including a casting alloy fixedly connected to an end of the shaft. The casting alloy including an intermetallic compound of the system TiAl. A connection between the cast wheel and the shaft includes at least one of a friction fit, a positive fit, and an integral connection.
    Type: Application
    Filed: February 28, 2003
    Publication date: January 15, 2004
    Applicant: DaimlerChrysler AG
    Inventors: Hartmut Baur, Peter Busse, Peter Fledersbacher, Daniel Bala Wortberg
  • Method for manufacturing a multi-part valve for internal combustion engines
    Publication number: 20030209218
    Abstract: For making an interconnection between a valve head and stem, the interconnection between these parts is made by pouring a cast alloy around the stem end. A connection and a valve are also provided.
    Type: Application
    Filed: February 27, 2003
    Publication date: November 13, 2003
    Applicant: DaimlerChrysler AG
    Inventors: Hartmut Baur, Peter Busse, Daniel Bala Wortberg