Patents Assigned to Astech
  • Double jet gas turbine engine equipped with a thrust reverser
    Patent number: 4362015
    Abstract: The present invention relates to a gas turbine engine which is provided with a thrust reverser with unfoldable doors and which is of the double jet type, i.e. comprising a central generator emitting a jet of hot gas and surrounded by an annular by-pass conduit through which a jet of relatively cold gas passes, wherein said turbine engine comprises means for restricting the passage of the jet of relatively cold gas in said annular by-pass conduit when the doors of the thrust reverser are unfolded. The invention results in a simplification of the structure of the doors of the thrust reverser.
    Type: Grant
    Filed: April 28, 1980
    Date of Patent: December 7, 1982
    Assignee: Astech
    Inventor: Etienne Fage
  • Thrust reverser for jet engine forming active extension of jet tube
    Patent number: 4182501
    Abstract: The invention relates to a thrust reverser comprising two symmetrical doors, approximately hemi-truncated in shape, pivotally mounted about an axis which is transverse and substantially diametrical to the jet of a jet engine and which is disposed downstream of the jet exhaust pipe thereof, the doors occupying a folded, or stowed, position in which they determine a sleeve forming part of the fairing of the engine and fuselage of the aircraft, or an unfolded, or opened out, position in which they are disposed transversely with respect to the jet, wherein the structure of each of the doors is such that, in stowed position, the inner volume of the sleeve forms a useful extension of the jet pipe of the engine. The invention finds particular application in the braking of aircraft.
    Type: Grant
    Filed: February 24, 1978
    Date of Patent: January 8, 1980
    Assignee: Astech
    Inventor: Etienne Fage
  • Single-skin thrust reverser for aircraft jet engines
    Patent number: 4129269
    Abstract: Thrust reverser for a jet engine of an aircraft, comprising two symmetrical doors mounted to pivot about an axis which is transverse and substantially diametrical with respect to the jet of the engine and which is disposed downstream of the jet exhaust pipe thereof, the doors being adapted to occupy a folded or stowed position in which they form part of the fairing of the engine or fuselage of the aircraft, or an unfolded or opened out position for which they are disposed transversely with respect to the jet. According to the invention, each of the doors is formed by a single skin which is at least substantially hemi-truncated in shape.
    Type: Grant
    Filed: April 4, 1977
    Date of Patent: December 12, 1978
    Assignee: Astech
    Inventor: Etienne Fage