Patents by Inventor Franck Vernis

Franck Vernis 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).

  • Test bench combining high-frequency tribological stress and oligocyclic fatigue, on a blade disk of turboshaft engine of an aircraft including a test piece having a portion with a shape of a blade root of a rotor and is engaged in a groove shape complementary to another test piece
    Patent number: 9869621
    Abstract: A test rig combining high-frequency tribological stress and low-cycle fatigue. The test rig includes a first test piece which is fixed to a frame and defines at least one bearing surface, a second test piece which is connected to an actuator for loading the second test piece so that it bears against the at least one bearing surface of the first test piece, a heater configured for heating the test pieces and a vibration generator, such as a shaker, for loading the test pieces in a vibratory manner so as to carry out a fretting fatigue and low-cycle and high-cycle fatigue test. One of the test pieces includes a portion in the shape of a turbine engine rotor blade root and which is inserted in a groove having a shape that is substantially complementary to the other test piece so as to reproduce a turbine engine blade-disc attachment.
    Type: Grant
    Filed: May 9, 2014
    Date of Patent: January 16, 2018
    Assignees: TURBOMECA, SNECMA
    Inventors: Laurent Houze, Jean Philippe Lapuyade, Franck Vernis, François Vogel, Jean Vincent Manuel Meriaux
  • TEST BENCH COMBINING HIGH-FREQUENCY TRIBOLOGICAL STRESS AND OLIGOCYCLIC FATIGUE
    Publication number: 20160116387
    Abstract: Test rig combining high-frequency tribological stress and low-cycle fatigue, comprising a first test piece which is fixed to a frame and defines at least one bearing surface, a second test piece which is connected to traction means for loading the second test piece so that it bears against the or each bearing surface of the first test piece, means for heating the test pieces and means for loading the test pieces in a vibratory manner so as to carry out a fretting fatigue and low-cycle and high-cycle fatigue test, one of the test pieces comprising a portion which is in the shape of a turbine engine rotor blade root and which is inserted in a groove, the shape of which groove is substantially complementary to the other test piece so as to reproduce a turbine engine blade-disc attachment.
    Type: Application
    Filed: May 9, 2014
    Publication date: April 28, 2016
    Applicants: SNECMA, Turbomeca
    Inventors: Laurent Houze, Jean Philippe Lapuyade, Franck Vernis, François Vogel, Jean Vincent Manuel Meriaux