Patents by Inventor Arnaud NEGRI

Arnaud NEGRI 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).

  • Patent number: 10196907
    Abstract: A turbomachine rotor blade includes an outer part at its distal end. The outer part includes a platform defining an outside surface of a passage for gas passing through a turbomachine and presenting first and second opposite side edges; and upstream and downstream sealing wipers extending outwards from the platform, each wiper extending between two lateral faces situated respectively at the first and second side edges. The two lateral faces of the upstream or the downstream wiper are covered at least in part in an anti-wear material.
    Type: Grant
    Filed: January 16, 2013
    Date of Patent: February 5, 2019
    Assignee: SAFRAN AIRCRAFT ENGINES
    Inventors: Slim Bensalah, Arnaud Negri, Sebastien Digard Brou De Cuissart, Guillaume Klein, Ba-Phuc Tang, David Mathieu, Sibylle Doremus
  • Patent number: 9963980
    Abstract: A turbomachine rotor blade, said blade having, at the distal end thereof, a heel comprising: a platform (2) having a first edge (201) on the lower side and a second edge (202) on the upper side, at least one sealing member having a first end portion (301) on the lower side and a second end portion (302) on the upper side, said sealing member having a sealing top that extends radially outwards from said platform (2) between said first and second end portions (301, 302), characterized in that, for at least one sealing member, the heel (105) comprises, on at least at one of the edges (201, 202), a portion forming a bowl (5) extending along the end portion (301, 302) of the sealing member which corresponds to the edge (201, 202), the portion forming the bowl (5) being suitable for receiving a deposit of anti-wear material.
    Type: Grant
    Filed: January 23, 2014
    Date of Patent: May 8, 2018
    Assignee: SNECMA
    Inventors: Arnaud Negri, Romain Bard, Slim Bensalah, Alexandre Gimel, Thomas Lardellier, Denis Gabriel Trahot
  • Patent number: 9879538
    Abstract: A blank casting for producing a turbine engine rotor blade, with a vane connected by a platform to a root, is provided. The root has an axial machining allowance intended to be removed by machining from each of its axial extremities. At least one of the axial extremities of the root includes at least one transverse channel that extends over the entire transverse width of the root and whose depth is greater than the machining allowance. A process for obtaining the blade by machining this blank casting is also provided.
    Type: Grant
    Filed: March 18, 2014
    Date of Patent: January 30, 2018
    Assignee: SNECMA
    Inventors: Alexandre Gimel, Arnaud Negri, Denis Gabriel Trahot
  • Publication number: 20150369058
    Abstract: A turbomachine rotor blade, said blade having, at the distal end thereof, a heel comprising: a platform (2) having a first edge (201) on the lower side and a second edge (202) on the upper side, at least one sealing member having a first end portion (301) on the lower side and a second end portion (302) on the upper side, said sealing member having a sealing top that extends radially outwards from said platform (2) between said first and second end portions (301, 302), characterised in that, for at least one sealing member, the heel (105) comprises, on at least at one of the edges (201, 202), a portion forming a bowl (5) extending along the end portion (301, 302) of the sealing member which corresponds to the edge (201, 202), the portion forming the bowl (5) being suitable for receiving a deposit of anti-wear material.
    Type: Application
    Filed: January 23, 2014
    Publication date: December 24, 2015
    Applicant: SNECMA
    Inventors: Arnaud NEGRI, Romain BARD, Slim BENSALAH, Alexandre GIMEL, Thomas LARDELLIER, Denis Gabriel TRAHOT
  • Publication number: 20150023793
    Abstract: A turbomachine rotor blade presenting an outer part (314) at its distal end (310B), the outer part comprising a platform (320) defining the outside surface of the passage for gas passing through the turbomachine and presenting first (351) and second opposite side edges; and upstream and downstream sealing wipers (331, 332) extending outwards from said platform (320), each wiper extending between two lateral faces (331L, 332L) situated respectively at the first (351) and second side edges. The lateral faces (331L, 332L) of the upstream and downstream wipers (331, 332) are covered at least in part in an anti-wear material (360).
    Type: Application
    Filed: January 16, 2013
    Publication date: January 22, 2015
    Applicant: SNECMA
    Inventors: Slim Bensalah, Arnaud Negri, Sebastien Digard Brou De Cuissart, Guillaume Klein, Ba-Phuc Tang, David Mathieu, Sibylle Doremus
  • Publication number: 20140286777
    Abstract: The invention relates to a blank casting for producing a turbine engine rotor blade, with a vane connected by a platform (4?) to a root (2?), said root having an axial machining allowance intended to be removed by machining from each of its axial extremities, characterised in that at least one of the axial extremities of the root (2?) comprises at least one transverse channel (14?) that extends over the entire transverse width of the root and whose depth is greater than said machining allowance. The invention also relates to the process for obtaining the blade by machining this blank casting.
    Type: Application
    Filed: March 18, 2014
    Publication date: September 25, 2014
    Applicant: SNECMA
    Inventors: Alexandre GIMEL, Arnaud NEGRI, Denis Gabriel TRAHOT