Patents by Inventor Raphaël Spagna

Raphaël Spagna 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).

  • Variable-throat gas-turbine combustion chamber
    Patent number: 6263663
    Abstract: The present invention relates to a gas-turbine combustion chamber comprising at least a zone (11) referred to as pilot combustion zone into which at least a first pilot fuel injection means (3) and an associated first oxidizer injection means (4) open; a main combustion zone (12) into which at least a second main fuel injection means (7) and an associated second oxidizer injection means (8) open, all of it being maintained under a pressure P1 inside an enclosure (14). According to the invention, said chamber further comprises a mechanical means (15-19) for controlling the second flow of oxidizer, which reacts to the pressure difference between the inside (P1) and the atmospheric pressure (Po) outside enclosure (14), said pressure difference being directly linked with the engine speed.
    Type: Grant
    Filed: June 11, 1999
    Date of Patent: July 24, 2001
    Assignees: Institut Francais du Petrole, Turbomeca
    Inventors: Guy Grienche, Gérard Schott, Jean-Hervé Le Gal, Gérard Martin, Patrice Laborde, Raphaël Spagna