Patents by Inventor Stephane Rousselin

Stephane Rousselin 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: 10519801
    Abstract: An annular air flow passage, particularly for a turbine engine, comprising two radially internal and external annular walls. A measuring element is elongated in a direction between the internal and external annular walls, and a first of the internal or external ends of the element is fixed rigidly to a first of the internal or external walls. The element includes at least one tubular cavity extending along the element and supplied with pressurized fluid.
    Type: Grant
    Filed: November 29, 2016
    Date of Patent: December 31, 2019
    Assignee: SAFRAN AIRCRAFT ENGINES
    Inventors: Jérémy Giordan, Valentine Lucette Bader, André Pierre Jean Xavier Leroux, Stéphane Rousselin
  • Patent number: 10513945
    Abstract: An annular air flow passage includes two radially internal and external annular walls. An element is elongated in a direction between the internal and external annular walls and a first of the internal or external ends of the element is fixed rigidly to a first of the internal or external walls. The center of gravity position of the element is variable.
    Type: Grant
    Filed: August 15, 2016
    Date of Patent: December 24, 2019
    Assignee: Safran Aircraft Engines
    Inventors: Jeremy Giordan, Florian Joseph Bernard Kockenpo, Stephane Rousselin
  • Publication number: 20190107008
    Abstract: A measuring device for measuring at least one parameter of an aerodynamic flow of a turbine engine. The device operates to collect parameters of the flow. A body extends along a radial axis (L). A connecting part is fastened to a first end of the body and designed to secure the measuring device to a radially outer wall of the turbine engine. A stud is inserted and mounted on a second end of the body radially opposite the first end. The stud includes at least a portion of a rubberlike material designed to come into contract with a radially inner wall of the turbine engine.
    Type: Application
    Filed: October 8, 2018
    Publication date: April 11, 2019
    Inventors: Jeremy GIORDAN, Thibault Xavier Alexis BERRANGER, Guillaume Jose RODRIGUES, Stephane ROUSSELIN, Mathieu Raymond Paul SEZEUR
  • Patent number: 9909444
    Abstract: A turbomachine fitted with a device for gathering the information recorded during operation of the former by a strain gauge positioned on a fan blade borne by a fan disc of the turbomachine, the device including a hollow cylindrical pipe positioned inside one of the rotating shafts of the turbomachine in order to guide at least one wire for transmitting this information, wherein the device further includes a part for attaching the pipe to the rotating shaft.
    Type: Grant
    Filed: October 11, 2013
    Date of Patent: March 6, 2018
    Assignee: SNECMA
    Inventors: Stephane Rousselin, Jean-Francois Adnot, Patrick Marcellin
  • Patent number: 9823145
    Abstract: A nut screwed around a rotating shaft with a view to securing a part to said shaft and to cooperate with a fixed sensor sensing a quantity of material in a pre-defined volume to measure the speed of rotation of the shaft, including a ring of teeth separated by slots. At least a portion of the teeth includes at least one recess maintaining the clamping function of the ring of teeth, the at least one recess forming, with notches separating the teeth, respective material deficit intervals detected by said sensor when passing through the detection volume during the rotation of the nut. A method of using the nut with a sensor in a rotational speed measuring device and the production of same.
    Type: Grant
    Filed: June 24, 2014
    Date of Patent: November 21, 2017
    Assignee: SNECMA
    Inventors: Stephane Rousselin, Jean-Francois Adnot, Benoit Mascrier
  • Publication number: 20170159484
    Abstract: An annular air flow passage, particularly for a turbine engine, comprising two radially internal and external annular walls, wherein an element is elongated in a direction between the internal and external annular walls and a first of the internal or external ends of the element is fixed rigidly to a first of the internal or external walls. According to the invention, the annular flow passage comprises means of variation, along said direction, of the center of gravity position of the element.
    Type: Application
    Filed: August 15, 2016
    Publication date: June 8, 2017
    Applicant: Safran Aircraft Engines PI (AJI)
    Inventors: Jeremy Giordan, Florian Joseph Bernard Kockenpo, Stephane Rousselin
  • Publication number: 20170152757
    Abstract: An annular air flow passage, particularly for a turbine engine, comprising two radially internal and external annular walls. A measuring element is elongated in a direction between the internal and external annular walls, and a first of the internal or external ends of the element is fixed rigidly to a first of the internal or external walls. The element includes at least one tubular cavity extending along the element and supplied with pressurized fluid.
    Type: Application
    Filed: November 29, 2016
    Publication date: June 1, 2017
    Applicant: Safran Aircraft Engines
    Inventors: Jérémy Giordan, Valentine Lucette Bader, André Pierre Jean Xavier Leroux, Stéphane Rousselin
  • Patent number: 9442035
    Abstract: A device for classifying strain gauges includes a holder capable of receiving strain gauges and capable of being rotated by a rotating device, the holder being connected to the rotating device by a linking device; and a heater capable of heating the holder and arranged about the mounting, the linking device including a cooling device capable of limiting the heating of the rotating device.
    Type: Grant
    Filed: May 30, 2012
    Date of Patent: September 13, 2016
    Assignee: SNECMA
    Inventors: Emmanuel Depots, Stéphane Clemot, Stéphane Rousselin, Etienne Tulie, Sébastien Voisin
  • Publication number: 20160153848
    Abstract: The invention concerns a nut (1) intended to be screwed around a rotating shaft (5) with a view to securing a part (2) to said shaft and to cooperate with a fixed sensor (12) sensing a quantity of material in a pre-defined volume in order to measure the speed of rotation of the shaft, comprising a ring of teeth (10) separated by slots (11), said nut being characterised in that at least a portion of the teeth (10) comprises at least one recess (14, 16) maintaining the clamping function of the ring of teeth, said recesses forming, with the notches separating the teeth, respective material deficit intervals intended to be detected by said sensor when passing through the detection volume of same during the rotation of the nut. It also concerns the use of this nut with a sensor in a rotational speed measuring device and the production of same.
    Type: Application
    Filed: June 24, 2014
    Publication date: June 2, 2016
    Applicant: SNECMA
    Inventors: Stephane Rousselin, Jean-Francois Adnot, Benoit Mascrier
  • Patent number: 9200594
    Abstract: A fan portion of a dual flow turbojet engine including a plurality of fan blades, a disk supporting the blades and configured to be rotated relative to a stator portion of the fan, along a longitudinal axis of the fan, and a system for setting the angle of attack associated with each fan blade, the systems configured such that the angle of attack of each blade varies according to a same setting law according to the angular position of the blade relative to the stator portion, along the longitudinal axis, the same setting law being periodic with a period of P=360°/n, where n is an integer at least equal to 1.
    Type: Grant
    Filed: February 25, 2010
    Date of Patent: December 1, 2015
    Assignee: SNECMA
    Inventors: Philippe Pierre Vincent Bouiller, Stephane Rousselin
  • Patent number: 9163662
    Abstract: An installation for calibration of a stress gauge for an external bearing block of a turbomachine roller bearing, the bearing block including a radially internal roller bearing race. The installation includes a support table on which the bearing block is attached; an internal roller bearing ring mounted coaxial with the bearing block; a drive shaft driving the ring. The installation also includes a device for applying an axial stress to the bearing block including a support drum on which the internal ring is removably fixed and a connection with the device for applying the axial stress.
    Type: Grant
    Filed: April 7, 2014
    Date of Patent: October 20, 2015
    Assignee: SNECMA
    Inventors: Stephane Rousselin, Pascal Brunel, Sylvie Charles, Frederic Patard
  • Patent number: 8882453
    Abstract: A rotor element including an annular surface portion about the rotor rotational axis, a fluid passage being formed through the surface portion, a passage-blocking mechanism including a blocking element that is deformable depending on the rotor rotating speed and arranged so as to adjust the fluid flow depending on the rotor rotating speed, and an annular collar with a free edge engaging with the blocking element so as to form the blocking mechanism. The free edge of the annular collar defines, together with the blocking portion of the blocking element, a diaphragm that blocks the fluid passage.
    Type: Grant
    Filed: March 10, 2010
    Date of Patent: November 11, 2014
    Assignee: SNECMA
    Inventor: Stephane Rousselin
  • Publication number: 20140307992
    Abstract: An installation for calibration of a stress gauge for an external bearing block of a turbomachine roller bearing, the bearing block including a radially internal roller bearing race. The installation includes a support table on which the bearing block is attached; an internal roller bearing ring mounted coaxial with the bearing block; a drive shaft driving the ring. The installation also includes a device for applying an axial stress to the bearing block including a support drum on which the internal ring is removably fixed and a connection with the device for applying the axial stress.
    Type: Application
    Filed: April 7, 2014
    Publication date: October 16, 2014
    Applicant: SNECMA
    Inventors: Stephane ROUSSELIN, Pascal Brunel, Sylvie Charles, Frederic Patard
  • Publication number: 20140123726
    Abstract: A device for classifying strain gauges includes a holder capable of receiving strain gauges and capable of being rotated by a rotating device, the holder being connected to the rotating device by a linking device; and a heater capable of heating the holder and arranged about the mounting, the linking device including a cooling device capable of limiting the heating of the rotating device.
    Type: Application
    Filed: May 30, 2012
    Publication date: May 8, 2014
    Applicant: SNECMA
    Inventors: Emmanuel Depots, Stéphane Clemot, Stéphane Rousselin, Etienne Tulie, Sébastien Voisin
  • Publication number: 20140105727
    Abstract: Turbomachine fitted with a device for gathering the information recorded during operation of the former by a strain gauge positioned on a fan blade borne by a fan disc of said turbomachine, said device comprising a hollow cylindrical pipe positioned inside one of the rotating shafts of said turbomachine in order to guide at least one wire for transmitting this information, characterized in that said device further comprises a part for attaching said pipe to said rotating shaft.
    Type: Application
    Filed: October 11, 2013
    Publication date: April 17, 2014
    Applicant: SNECMA
    Inventors: Stephane ROUSSELIN, Jean-Francois ADNOT, Patrick MARCELLIN
  • Patent number: 8587780
    Abstract: Measuring the twist of a rotating shaft by means of a laser beam and polarizing filters. The measurement device includes a laser beam generator, two polarizing filters secured to the shaft and spaced apart from each other, and a laser radiation receiver receiving the laser beam after it has passed through both filters.
    Type: Grant
    Filed: January 7, 2010
    Date of Patent: November 19, 2013
    Assignee: SNECMA
    Inventors: Francois Gallet, Stephane Rousselin
  • Patent number: 8529208
    Abstract: A rotary assembly for a turbomachine fan includes a disk rotatable about an axis; a plurality of blades fastened by their roots to the disk and extending radially outwards from the disk; and a plurality of inter-blade platforms, each extending between two adjacent blades and defining the inner profile for the flow section of the fluid passing through the fan. On their facing side faces, these adjacent blades present slides between which the platform can slide, these slides limiting outward radial movement of the platform.
    Type: Grant
    Filed: March 20, 2008
    Date of Patent: September 10, 2013
    Assignee: Snecma
    Inventors: Michel Gilbert Roland Brault, Stephane Rousselin
  • Patent number: 8419352
    Abstract: A bypass turbojet engine including an outer fan duct and an inner fan duct (IFD), between which the secondary flow passes, and a high pressure compressor having an outer casing is disclosed. The IFD is fastened on the outer casing.
    Type: Grant
    Filed: June 1, 2009
    Date of Patent: April 16, 2013
    Assignee: SNECMA
    Inventors: Romuald Gentils, Stephane Rousselin
  • Patent number: 8246255
    Abstract: A guide shaft bearing including an internal ring mounted on a cylindrical contact surface of a shaft and a device for the axial locking of the ring including a ring mounted sliding on the cylindrical contact surface and an annular rib made of shape memory material mounted in two annular grooves of the cylindrical contact surface and of the ring is disclosed. The annular rib is able to expand radially by shape memory effect when it is subjected to a temperature greater than a transition temperature of its material to pass to a locking position of the ring on the cylindrical contact surface.
    Type: Grant
    Filed: May 26, 2009
    Date of Patent: August 21, 2012
    Assignee: SNECMA
    Inventors: Laurent Raberin, Stephane Rousselin, Regis Eugene Henri Servant
  • Patent number: 8246310
    Abstract: A turbomachine fan including blades mounted in slots at the periphery of a rotor disk, and inter-blade platforms having radial lugs for fastening to corresponding lugs of the disk is disclosed. Each platform is fastened to the disk by a pin inserted into orifices in the lugs of the platform and into corresponding orifices in the lugs of the disk.
    Type: Grant
    Filed: March 14, 2008
    Date of Patent: August 21, 2012
    Assignee: SNECMA
    Inventors: Arnaud Jean-Marie Pierrot, Stephane Rousselin