Patents by Inventor Hang W. Lung

Hang W. Lung 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 and system for measuring a component
    Patent number: 8175842
    Abstract: A method for measuring the profile of a component in the region of an edge of the component comprises the following steps: determining the position of an edge point of the component; defining a center line for the component in the region of the edge; and measuring at least one dimension of the component with reference to the center line.
    Type: Grant
    Filed: June 14, 2007
    Date of Patent: May 8, 2012
    Assignee: Rolls-Royce PLC
    Inventors: Mitchel Cameron, Hang W Lung, Nicholas B Orchard, Michael J S Gooder
  • METHOD FOR OPTIMISING THE SHAPE OF AN AEROFOIL
    Publication number: 20110202321
    Abstract: A method for defining the shape of an edge of an aerofoil comprises the following steps: obtaining a starting value for the thickness of the edge; defining a distance from the edge of the aerofoil in terms of the thickness; over the defined distance, defining a space S in terms of normalised camberline and normalised thickness; transforming the space S to a new space S?; parameterising the new space S? to obtain new values for normalised camberline and normalised thickness; defining a new shape for the edge using the new parameter values. In a preferred embodiment, the transforming step comprises applying a parabolic function to the space S.
    Type: Application
    Filed: November 18, 2009
    Publication date: August 18, 2011
    Applicant: ROLLS-ROYCE PLC
    Inventors: Hang W. Lung, Martin N. Goodhand, Robert J. Miller, Michael A. Howard
  • Method and system for measuring a component
    Publication number: 20090306930
    Abstract: A method for measuring the profile of a component in the region of an edge of the component comprises the following steps: determining the position of an edge point of the component; defining a centre line for the component in the region of the edge; and measuring at least one dimension of the component with reference to the centre line.
    Type: Application
    Filed: June 14, 2007
    Publication date: December 10, 2009
    Applicant: Rolls-Royce PLC
    Inventors: Mitchel Cameron, Hang W. Lung, Nicholas B. Orchard, Michael J.S. Gooder
  • Aerofoil members for gas turbine engines
    Patent number: 5641268
    Abstract: Aerofoil members such as the stator vanes and rotor blades of an axial flow compressor are defined by a number of nominal sections. The leading edge of each nominal section of the blade is set so that an airflow passing therethrough is incident at the optimum angle. The optimum angle is chosen so that the maximum velocities of the airflow at the leading edge are equal. Once the optimum angle has been found for each section of the blade the sections are stacked to define a blade having a leading edge the aerodynamic profile of which ensures that the airflow is incident at the optimum angle along the length of the blade from the root to the tip. The efficiency of the axial flow compressor is improved.
    Type: Grant
    Filed: February 9, 1996
    Date of Patent: June 24, 1997
    Assignee: Rolls-Royce plc
    Inventors: Terence E. Martin, Hang W. Lung