Patents by Inventor Jean-Louis Tranchier

Jean-Louis Tranchier 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).

  • Method of distributing rotor blades in a turbomachine
    Patent number: 7051436
    Abstract: A method of distributing the blades of a turbomachine rotor in which the radial and tangential static moments of a plurality of blades for making a rotor are initially measured, and then the blades are classified in pairs on the basis of a determined selection criterion depending on said previously measured two static moments, and finally the blades of the selected pairs are mounted one by one on the rotor in diametrically opposite positions. It is also possible to measure the axial static moment of the blades, with the classification in pairs then being performed while taking account also of the axial static moment as measured in this way.
    Type: Grant
    Filed: July 7, 2003
    Date of Patent: May 30, 2006
    Assignee: Snecma Moteurs
    Inventors: Daniel Berger, Jean-Louis Tranchier
  • Method of distributing rotor blades in a turbomachine
    Publication number: 20040013523
    Abstract: A method of distributing the blades of a turbomachine rotor in which the radial and tangential static moments of a plurality of blades for making a rotor are initially measured, and then the blades are classified in pairs on the basis of a determined selection criterion depending on said previously measured two static moments, and finally the blades of the selected pairs are mounted one by one on the rotor in diametrically opposite positions. It is also possible to measure the axial static moment of the blades, with the classification in pairs then being performed while taking account also of the axial static moment as measured in this way.
    Type: Application
    Filed: July 7, 2003
    Publication date: January 22, 2004
    Applicant: SNECMA MOTEURS
    Inventors: Daniel Berger, Jean-Louis Tranchier