Patents by Inventor Christopher Wolfgram

Christopher Wolfgram 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).

  • Rotor with cooling passage
    Patent number: 9091172
    Abstract: A gas turbine engine is disclosed having a cooling passage that rotates with a turbine and is capable of providing cooling flow to the turbine. In one embodiment the cooling passage can receive cooling flow from an interior of a shaft of the gas turbine engine and increase the pressure of the cooling flow before delivering it to a location near a blade of the turbine. In one form the cooling passage can have an inducer section. In one form the cooling passage can have internal vanes useful in increasing the pressure of the cooling flow.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: July 28, 2015
    Assignee: Rolls-Royce Corporation
    Inventors: Christopher Wolfgram, David A. Otero, Daniel G. Smith, Bill Westphal
  • ROTOR WITH COOLING PASSAGE
    Publication number: 20120177480
    Abstract: A gas turbine engine is disclosed having a cooling passage that rotates with a turbine and is capable of providing cooling flow to the turbine. In one embodiment the cooling passage can receive cooling flow from an interior of a shaft of the gas turbine engine and increase the pressure of the cooling flow before delivering it to a location near a blade of the turbine. In one form the cooling passage can have an inducer section. In one form the cooling passage can have internal vanes useful in increasing the pressure of the cooling flow.
    Type: Application
    Filed: December 22, 2011
    Publication date: July 12, 2012
    Inventors: Christopher Wolfgram, David A. Otero, Daniel G. Smith, Bill Westphal