Patents by Inventor Alexander George Wilson

Alexander George Wilson 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).

  • Tone noise reduction in turbomachines
    Patent number: 8177496
    Abstract: A blade for a turbomachine extends in use, in a radial direction relative to the axis of the turbomachine. The turbomachine has at least one operating condition which generates supersonic fluid flow at the blade. The blade is adapted to provide, at the supersonic operating condition, a leading edge sweep angle which varies such that successive radial positions (i) to (iii) along the leading edge are at respective sweep angle turning points. Position (i) is the radially inner and position (iii) the radially outer of the positions. Position (i) is at or radially outward of the 30% span position, where 0% span is the radially innermost point of the leading edge and 100% span is the radially outermost point of the leading edge.
    Type: Grant
    Filed: January 16, 2008
    Date of Patent: May 15, 2012
    Assignee: Rolls-Royce PLC
    Inventors: Alexander George Wilson, Rory Douglas Stieger, Nigel Smith, John Coupland
  • Tone noise reduction in turbomachines
    Publication number: 20080181769
    Abstract: A blade for a turbomachine extends in use, in a radial direction relative to the axis of the turbomachine. The turbomachine has at least one operating condition which generates supersonic fluid flow at the blade. The blade is adapted to provide, at the supersonic operating condition, a leading edge sweep angle which varies such that successive radial positions (i) to (iii) along the leading edge are at respective sweep angle turning points. Position (i) is the radially inner and position (iii) the radially outer of the positions. Position (i) is at or radially outward of the 30% span position, where 0% span is the radially innermost point of the leading edge and 100% span is the radially outermost point of the leading edge.
    Type: Application
    Filed: January 16, 2008
    Publication date: July 31, 2008
    Applicant: ROLLS-ROYCE PLC
    Inventors: Alexander George Wilson, Rory Douglas Stieger, Nigel Smith, John Coupland