Patents by Inventor Guy Hebraud

Guy Hebraud 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).

  • Emergency device for relighting a windmilling turbojet
    Patent number: 6672049
    Abstract: An emergency device for relighting a windmilling turbojet, the jet comprising a fan driven by a low-pressure turbine via a first shaft and a compressor driven by a high-pressure turbine via a second shaft disposed coaxially around the first shaft, a differential interconnecting said first and second shafts while compensating for their different speeds of rotation in normal operation or the turbojet, and a braking system connected to the differential so as to enable it to be slowed down or blocked when the turbojet shuts down, thereby enabling the first shaft to entrain the second shaft so that it reaches a speed that favors relighting of the turbojet.
    Type: Grant
    Filed: June 18, 2002
    Date of Patent: January 6, 2004
    Assignee: SNECMA Moteurs
    Inventors: Michel Franchet, Guy Hebraud
  • Emergency device for relighting a windmilling turbojet
    Publication number: 20020189231
    Abstract: An emergency device for relighting a windmilling turbojet, the jet comprising a fan driven by a low-pressure turbine via a first shaft and a compressor driven by a high-pressure turbine via a second shaft disposed coaxially around the first shaft, a differential interconnecting said first and second shafts while compensating for their different speeds of rotation in normal operation or the turbojet, and a braking system connected to the differential so as to enable it to be slowed down or blocked when the turbojet shuts down, thereby enabling the first shaft to entrain the second shaft so that it reaches a speed that favors relighting of the turbojet.
    Type: Application
    Filed: June 18, 2002
    Publication date: December 19, 2002
    Applicant: SNECMA MOTEURS
    Inventors: Michel Franchet, Guy Hebraud