Patents by Inventor Michael J. Raine

Michael J. Raine 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).

  • Gas turbine engine
    Patent number: 5836739
    Abstract: A gas turbine engine comprises turbine and compressor elements on a rotary shaft. The shaft is rotably mounted on preloaded axial thrust bearings. As it rotates in use the turbine and compressor elements create an axial thrust load on the bearings. According to the invention that axial thrust load is opposed by an electromagnetic coil which is energised to exert an axial force on the shaft in opposition to the axial thrust load and preferably completely balancing the axial thrust load. Bearing life is much extended.
    Type: Grant
    Filed: October 21, 1997
    Date of Patent: November 17, 1998
    Assignee: Rolls-Royce plc
    Inventors: Shigenori Haramura, Peter H. Birch, Mark G. Norton, Michael J. Raine, Graham A. Reynolds