Patents by Inventor Josiane M. F. Labatut

Josiane M. F. Labatut 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).

  • Combination turbojet-ramjet-rocket propulsion system
    Patent number: 5052176
    Abstract: A propulsion system for a reusable spacecraft is disclosed having turbojet, amjet and rocket modes of operation. Hydrogen or exhaust gases from a gas generator drives a gas turbine which powers an air compressor in the turbojet mode. An injection device injects hydrogen and exhaust from the gas driven turbine in the combustion chamber in the turbojet mode. In the ramjet mode, only hydrogen is injected into the combustion chamber. In the ramjet mode, hydrogen and oxygen are supplied to the rocket motor. An adjustable nozzle is provided to form a variable throat convergent-divergent nozzle in the turbojet and ramjet modes and to form a divergent nozzle in the rocket mode.
    Type: Grant
    Filed: September 27, 1989
    Date of Patent: October 1, 1991
    Assignee: Societe Nationale d'Etude et de Construction de Moteurs d'Aviation
    Inventors: Josiane M. F. Labatut, Francois M. P. Marlin, Georges Mazeaud, Francois J. Mirville