Patents by Inventor Jacky Serge Naudet

Jacky Serge Naudet 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).

  • High-pressure compressor stator
    Patent number: 6390771
    Abstract: A stator suitable for high-pressure compressors in gas turbine engines includes two points of ventilation at different temperatures. It is recommended that the upstream section of the stator be constructed with a casing and a shroud, both of which are unbroken around a circumference and made of a material with a low degree of thermal expansion. Downstream the shroud is, however, constructed using angular sectors in a material with a higher degree of thermal expansion.
    Type: Grant
    Filed: June 5, 2000
    Date of Patent: May 21, 2002
    Assignee: Snecma Moteurs
    Inventors: Pascal Gérard Gervais, Pascal Michel Daniel Lejeune, Carmen Miraucourt, Jacky Serge Naudet, Patrice Suet, Monique Andrée Thore
  • Axisymmetric, converging-diverging, jet-deflecting turbojet-engine exhaust-nozzle
    Patent number: 6349539
    Abstract: An axisymmetric, converging-diverging turbojet-engine exhaust nozzle for jet deflection. The diverging flaps are connected by linkrods to a vectoring ring (13). The vectoring ring (13) is driven by linear actuators (20) anchored in the stationary structure (2). The linear actuators (20) are connected by a swivel (22) to the vectoring ring (13) and are affixed to the stationary structure (2) to absorb the tangential loads applied by the exhaust gases on the diverging flaps and to allow positioning the vectoring ring (13). Preferably the linear actuator (20) is connected by a sheath (25) to the vectoring ring (13), the sheath (25) slidable on the actuator case (26) and being displaceable in a radial plane passing through the turbojet-engine's axis.
    Type: Grant
    Filed: July 11, 2000
    Date of Patent: February 26, 2002
    Assignee: Snecma Moteurs
    Inventors: Didier Georges Feder, Daniel Kettler, Guy Jean-Louis Lapergue, Bertrand Pierre Renaud Monville, Jacky Serge Naudet, Laurent Claude Patrick Salperwyck
  • Leaktight seal of a circular vane stage
    Patent number: 6332617
    Abstract: A leaktight seal includes plaquettes that are housed between platforms of “hammer legged” vanes and a periphery of a rotor disc. The plaquettes lie above a throat that receives legs between a collar. The plaquettes are completed with heels that also lie between the legs. Centrifugal forces distort the seal and produce excellent leaktightness between the disc and the platforms.
    Type: Grant
    Filed: February 22, 1999
    Date of Patent: December 25, 2001
    Assignee: Societe Nationale D'Etude et de Construction de Moteurs D'Aviation “Snecma”
    Inventors: Jacques Leveaux, Jacky Serge Naudet
  • Braking nuts or screws and mountings obtained with same devices
    Patent number: 5702217
    Abstract: Screw or nut braking rings and mountings established with the rings include a nut having an upper portion hollowed from a circular throat. Slits divide the upper portion into blocks by cutting the throat. A shape-memory alloy ring is housed in the throat so as to retighten the blocks on the threaded portion of the mounting and thus tighten it. The ring exhibits a change between the tightening state and a mounting state where it is free in the throat and can be easily mounted.
    Type: Grant
    Filed: June 15, 1995
    Date of Patent: December 30, 1997
    Assignee: Societe Nationale d'Etude et de Construction de Moteurs d'Aviation "Snecma"
    Inventors: Jean-Louis Charbonnel, Michel Franchet, Jacky Serge Naudet