Patents by Inventor Jean-Michel BUELYHA

Jean-Michel BUELYHA 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: 10399168
    Abstract: A method for producing cavities in a turbomachine disk, the cavities extending between first and second lateral surfaces of the disk, the method including positioning a ring facing the first surface, the ring including an inner periphery including protrusions complementary in shape to the cavities that are to be produced; circulating an electrolyte close to the protrusions on the ring; activating a first translational movement of the ring towards the second surface; activating a rotation of the disk; generating an electric current pulse in the electrolyte when the ring is substantially at the first surface, the pulse resulting in the ionic dissolution of the disk at the protrusions; reducing the speed of rotation to a first reduced speed, when the ring is substantially at the first surface, for a first period of time; and stopping the first translation of the ring when the ring is beyond the second surface.
    Type: Grant
    Filed: June 6, 2014
    Date of Patent: September 3, 2019
    Assignee: SAFRAN AIRCRAFT ENGINES
    Inventors: Janvier Lecomte, Jean-Michel Buelyha, Juri Kraft, Andreas Grützmacher
  • Publication number: 20160368071
    Abstract: A method for producing cavities in a turbomachine disk, the cavities extending between first and second lateral surfaces of the disk, the method including positioning a ring facing the first surface, the ring including an inner periphery including protrusions complementary in shape to the cavities that are to be produced; circulating an electrolyte close to the protrusions on the ring; activating a first translational movement of the ring towards the second surface; activating a rotation of the disk; generating an electric current pulse in the electrolyte when the ring is substantially at the first surface, the pulse resulting in the ionic dissolution of the disk at the protrusions; reducing the speed of rotation to a first reduced speed, when the ring is substantially at the first surface, for a first period of time; and stopping the first translation of the ring when the ring is beyond the second surface.
    Type: Application
    Filed: June 6, 2014
    Publication date: December 22, 2016
    Applicant: SNECMA
    Inventors: Janvier LECOMTE, Jean-Michel BUELYHA, Juri KRAFT, Andreas GRÜTZMACHER