Patents by Inventor Lienjing Chen

Lienjing Chen 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 OF DESIGNING TOOL AND TOOL PATH FOR FORMING A ROTOR BLADE INCLUDING AN AIRFOIL PORTION
    Publication number: 20100042244
    Abstract: A method of designing a tool for forming a rotor blade including an airfoil portion includes generating a computer model of a rotor blade having an airfoil portion, and determining a curvature and radius of curvature at sections of the rotor blade. An inner and outer diameter of a circumferential forming portion of a tool operable to form the rotor blade may then be calculated. A method of designing a tool path for forming a rotor blade including an airfoil portion includes generating a computer model of a cylindrical tool operable to form a rotor blade including an airfoil portion and of a rotor having a plurality of the rotor blades. The computer models of the rotor and tool are used to generate a first and second tool motion corresponding to airfoil suction and pressure portions. A method of forming a rotor with integral blades is also disclosed.
    Type: Application
    Filed: October 22, 2009
    Publication date: February 18, 2010
    Inventors: Tahany Ibrahim El-Wardany, Changsheng Guo, Daniel V. Viens, Eric Fromerth, Lienjing Chen
  • METHOD OF DESIGNING TOOL AND TOOL PATH FOR FORMING A ROTOR BLADE INCLUDING AN AIRFOIL PORTION
    Publication number: 20090028714
    Abstract: A method of designing a tool for forming a rotor blade including an airfoil portion includes generating a computer model of a rotor blade having an airfoil portion, and determining a curvature and radius of curvature at sections of the rotor blade. An inner and outer diameter of a circumferential forming portion of a tool operable to form the rotor blade may then be calculated. A method of designing a tool path for forming a rotor blade including an airfoil portion includes generating a computer model of a cylindrical tool operable to form a rotor blade including an airfoil portion and of a rotor having a plurality of the rotor blades. The computer models of the rotor and tool are used to generate a first and second tool motion corresponding to airfoil suction and pressure portions. A method of forming a rotor with integral blades is also disclosed.
    Type: Application
    Filed: July 25, 2007
    Publication date: January 29, 2009
    Inventors: Tahany Ibrahim El-Wardany, Changsheng Guo, Daniel V. Viens, Eric Fromerth, Lienjing Chen