Patents Assigned to Turbomeca
  • Publication number: 20120174587
    Abstract: A fuel flowmeter for being fed by a pump including an inlet and an outlet, including: a metering valve including an inlet and an outlet, and arranged downstream from the outlet of the pump; a return circuit connecting the inlet of the metering valve to the inlet of the pump; and a pressure regulator device including: a movable valve member to close and open the return circuit, a pressure difference detection surface fastened to the valve member and axially separating a first chamber in communication with the inlet of the metering valve from a second chamber in communication with the outlet from the metering valve, a piston axially separating the second chamber from a third chamber connected to the outlet of the metering valve, and a channel putting the second chamber in communication with the third chamber.
    Type: Application
    Filed: August 26, 2010
    Publication date: July 12, 2012
    Applicant: TURBOMECA
    Inventors: Philippe Jean Rene Marie Benezech, Bruno Facca, Ludovic Alexandre Leglise, Cedric Roger Zordan
  • Publication number: 20120167591
    Abstract: A free-turbine turboshaft engine including a gas generator including at least one compressor supplied with air, a combustion chamber receiving the compressed air at the output of the compressor, and at least one generator turbine mechanically connected to the compressor by a drive shaft and driven by gases from combustion of fuel carried out in the combustion chamber, and including a free turbine supplied by the gases from the combustion after passing through the generator turbine and which drives a power shaft positioned non-coaxially relative to the drive shaft of the gas generator and supplying the power of the turboshaft engine via a reduction gear. The combustion chamber is a substantially cylindrical or frusto-conical chamber, coaxial with the axis of the generator turbine, and includes a single injector.
    Type: Application
    Filed: September 29, 2010
    Publication date: July 5, 2012
    Applicant: TURBOMECA
    Inventors: Antoine Drachsler, Alain Michel Perbos, Joel Silet
  • Publication number: 20120163957
    Abstract: A device for supporting a ring of a gas turbine, the ring configured to surround mobile blades of the turbine which are driven by a gas stream flowing upstream to downstream. The device includes at least one upstream hook facing upstream, to be housed in an upstream groove of the ring, opened toward the downstream direction, and at least one downstream hook facing downstream, to be housed in a downstream groove of the ring, opened toward the upstream direction. The hooks are protected and clearances at apexes of the blades are more easily controlled. The device further includes, upstream from the upstream hook, a mechanism injecting cooling gas to cool the upstream hook and/or includes, downstream from the downstream hook, a mechanism injecting a cooling gas to cool the downstream hook.
    Type: Application
    Filed: September 2, 2010
    Publication date: June 28, 2012
    Applicant: TURBOMECA
    Inventors: Christophe-Olivier Moraines, Frederic Philippe Jean-Jacques Pardo
  • Patent number: 8201414
    Abstract: A turbine engine for a helicopter, including a gas generator and a free turbine driven in rotation by the gas flow generated by the gas generator is disclosed. The turbine engine further includes a motor/generator coupled to a shaft of the gas generator, to provide a quantity of additional rotational kinetic energy to the shaft during a stage of turbine engine acceleration, or to draw a quantity of rotational kinetic energy from the shaft during a stage of turbine engine deceleration.
    Type: Grant
    Filed: April 4, 2008
    Date of Patent: June 19, 2012
    Assignee: Turbomeca
    Inventors: Edgar Haehner, Gerald Senger
  • Publication number: 20120087800
    Abstract: A centrifugal impeller for a compressor, through which a fluid is to pass. The impeller includes blades each having a leading edge and a trailing edge, the rotation of the impeller sucking fluid in through the front of the impeller, the fluid leaving the impeller via its outer periphery, the trailing edges of the blades being such that in a radial section plane intersecting the trailing edges of the blades, they are curved in the direction opposite to the direction of rotation of the impeller, and the trailing edge portions of the blades are redirected in the direction of rotation of the impeller to form respective end fins serving to deflect the flow of the fluid by redirecting it radially.
    Type: Application
    Filed: June 2, 2010
    Publication date: April 12, 2012
    Applicant: TURBOMECA
    Inventors: Jerome Porodo, Nicolas Rochuon, Laurent Tarnowski
  • Publication number: 20120055169
    Abstract: A gas turbine engine, in which gases flow upstream to downstream, including a combustion chamber, a high-pressure turbine placed downstream from the combustion chamber, arranged so as to receive combustion gases from the combustion chamber, a free turbine, and an exhaust-gas guide cone attached to the free turbine downstream from the free turbine, the turbine engine emitting sound waves during operation. The guide cone includes a sound suppressor, for example with a Helmholtz resonator structure, with a resonant cavity and a resonator neck in communication with an opening, arranged so as to suppress the sound waves emitted by the turbine engine.
    Type: Application
    Filed: May 27, 2010
    Publication date: March 8, 2012
    Applicant: TURBOMECA
    Inventors: Eric Jean-Louis Bouty, Pierre-Luc Regaud, Antoine Vallon
  • Publication number: 20120036865
    Abstract: The invention relates to a secondary air system for a compressor of centrifugal or mixed type including a rotor presenting an axis of rotation, said compressor being adapted to compress an oxidizer gas. The secondary air system includes an oxidizer gas bleed system arranged in the rotor.
    Type: Application
    Filed: March 31, 2010
    Publication date: February 16, 2012
    Applicant: TURBOMECA
    Inventors: Christophe Michel Georges Marcel Brillet, Jérôme Yves Félix Gilbert Porodo, Laurent Pierre Tarnowski
  • Publication number: 20120037280
    Abstract: A method for manufacturing a blank part in Ni-base superalloy, wherein an alloy is prepared and heat treatments are conducted characterized in that: the said superalloy contains at least a total of 2.5% of Nb and Ta; heat treatment is conducted comprising a plurality of steps: a first step at between 850 and 1000° C. held for at least 20 minutes to precipitate the ? phase at the grain boundaries; a second step held at a temperature higher than the temperature of the first step allowing partial dissolution of the ? phase obtained at the first step; ageing treatment comprising a third step and optionally one or more additional steps at a temperature below the temperature of the first step and allowing precipitation of the hardening phases ?? and ??. Part thus obtained.
    Type: Application
    Filed: February 5, 2010
    Publication date: February 16, 2012
    Applicants: AUBERT & DUVAL, SNECMA, TURBOMECA
    Inventor: Alexandre Devaux
  • Publication number: 20120041723
    Abstract: A data structure for a parts list of a mechanical device, the parts list including at least one set including at least one element selected from a component and a set of components. The structure includes: an identifier of the set; an identifier of the element; at least one link between the identifier of the element and at least one CAD file including a geometrical representation of the element; at least one link between the identifier of the set and at least one data file including a three-dimensional positioning matrix of the at least one element of the set, together with at least one pointer to the CAD file containing the geometrical representation of the element of the set; and a three-dimensional positioning vector for positioning the element in the set.
    Type: Application
    Filed: May 3, 2010
    Publication date: February 16, 2012
    Applicant: TURBOMECA
    Inventor: Gregory Perasso
  • Publication number: 20120020789
    Abstract: A turbine wheel including: a plurality of first and second blades, at least one of the first blades being adjacent to at least one of the second blades; a disk presenting an axis of rotation and a periphery having the blades mounted thereat, each of the blades including a head solid with a root engaged in a housing that opens to the periphery of the disk, each of the blades including a keying mechanism including a respective shelf arranged between the head and the root of the blade, the shelves of the first blades presenting an azimuth length different from the azimuth length of the shelves of the second blades; and a damper device arranged at least between the adjacent blades, the damper device being arranged between the shelves of the blades and the periphery of the disk.
    Type: Application
    Filed: March 31, 2010
    Publication date: January 26, 2012
    Applicant: TURBOMECA
    Inventors: Marc Dijoud, Jean-Philippe Ousty
  • Publication number: 20110318188
    Abstract: A mobile wheel for a centrifugal or axial centrifugal compressor for a turbine engine, that includes a base on which a plurality of vanes are attached at their feet and extend between a leading edge and a trailing edge, the trailing edge being inclined at the base of the vane by a slope angle relative to the middle plane extending through the base thereof in the rotation direction of the compressor. The trailing edge has at the head of the vane a slope angle smaller than the slope angle at the vane base.
    Type: Application
    Filed: March 10, 2010
    Publication date: December 29, 2011
    Applicant: TURBOMECA
    Inventors: Geoffroy Louis Henri Marie Billotey, Jean-Philippe Ousty, Nicolas Rochuon
  • Publication number: 20110311366
    Abstract: A turbine wheel including a plurality of blades, each of the blades presenting an airfoil, a platform, and an attachment member, a disk having the blades mounted at the periphery thereof, the attachment member of each blade being engaged in a housing that opens into a periphery of the disk and extending axially between two opposite faces of the disk, the housings being separated by teeth, and an axial retention device for retaining the blades. The disk includes a first stop member, and the platform of the blade includes a projection projecting axially beyond one of the faces of the disk. The projection includes a second stop member. The axial projection, the second stop member, and the face of the disk together form a groove facing towards the axis of the disk, the groove serving to receive the axial retention device.
    Type: Application
    Filed: December 10, 2009
    Publication date: December 22, 2011
    Applicant: Turbomeca
    Inventor: Denis Chanteloup
  • Patent number: 8074493
    Abstract: The invention relates to a signaling magnetic plug for a liquid circuit, the plug including a first magnetic electrode and a second magnetic electrode for coming into contact with the liquid flowing in the liquid circuit when the magnetic plug is mounted so as to detect the presence of metal particles that might be contained in the liquid. According to the invention, the plug also includes a preferably non-magnetic intermediate electrode disposed between the first and second magnetic electrodes while also being designed to be in contact with the liquid flowing in the liquid circuit when the magnetic plug is mounted, whereby said plug enables the presence of such metal particles to be detected early.
    Type: Grant
    Filed: February 10, 2009
    Date of Patent: December 13, 2011
    Assignee: Turbomeca
    Inventors: Philippe Augros, Gérald Senger
  • Publication number: 20110299987
    Abstract: A centrifugal compressor wheel including a hub, a web extending radially from the hub, and a plurality of blades carried by the wheel. The web includes an erosion indicator of the wheel.
    Type: Application
    Filed: February 9, 2010
    Publication date: December 8, 2011
    Applicant: TURBOMECA
    Inventors: Geoffroy Billotey, Olivier Descubes, Sylvain Gourdant, Olivier Tuot
  • Publication number: 20110284318
    Abstract: The soundproofed exhaust duct for a turbine engine comprises a perforated inner shell defining a flow passage, and a solid outer shell, the inner and outer shells defining between them a space that is closed at the upstream and downstream ends of said space. A core extends between the inner and outer shells at a distance therefrom, and contains at least one sound energy dissipating layer made up of hollow beads that are held against one another. A frame with upstream and downstream portions connected together by longitudinal members supports the core and partitions it into a plurality of boxes that are filled with hollow beads that are held between perforated textures, the frame being secured to the outer shell and/or to the inner shell via at least one of its upstream and downstream portions.
    Type: Application
    Filed: January 14, 2010
    Publication date: November 24, 2011
    Applicant: TURBOMECA
    Inventors: Jean-Baptiste Arilla, Pierre Michel Baude, Stephane Didier Durand, Isabelle Germaine, Claude Ladeveze
  • Publication number: 20110283712
    Abstract: A device for producing electrical power in a gas turbine or the like of an aircraft, the device including a plurality of thermoelectric cells having a face surrounding a hot source. A cold source is constituted by a cold fluid flowing over the other face of the thermoelectric cells.
    Type: Application
    Filed: February 4, 2010
    Publication date: November 24, 2011
    Applicant: TURBOMECA
    Inventor: Christophe Brillet
  • Publication number: 20110255962
    Abstract: A diffuser for a mixed flow or centrifugal compressor of a gas turbine. The diffuser includes at least one vane presenting a pressure side, a suction side, and a first flank. The vane includes a plurality of orifices opening out into the suction side and/or the pressure side and communicating with at least one cavity formed in the vane, the cavity extending transversely relative to the vane and opening out into its first flank. The cross section of the cavity varies in the transverse direction of the vane, the cross section increasing towards the first flank.
    Type: Application
    Filed: October 15, 2009
    Publication date: October 20, 2011
    Applicant: TURBOMECA
    Inventors: Jérôme Porodo, Laurent Tarnowski, Hubert Vignau
  • Publication number: 20110250071
    Abstract: A turbine wheel includes: a plurality of blades, a rotor including a disk having the blades mounted at a periphery thereof, each blade including an airfoil with a foot secured to a platform carrying an attachment member engaged in a housing that opens into the periphery of the disk and that extends axially between two opposite side faces of the disk, the housings being spaced apart from one another by portions of the disk that form teeth, and an axial retention plate retaining the blades on the disk and including a retention plate situated on one side of the disk.
    Type: Application
    Filed: December 16, 2009
    Publication date: October 13, 2011
    Applicant: TURBOMECA
    Inventors: Jean-Baptiste Arilla, Michel Beaucoueste, Denis Chanteloup, Michel Clastre
  • Publication number: 20110236203
    Abstract: A positioning member for presenting a ring segment for a turbine wheel mounted to rotate about an axis inside a casing. The member presents: a fastener portion for fastening to the casing; a resilient portion forming a spring; and a bearing portion connected to the resilient portion and serving to bear axially against the ring segment such that when the member is mounted the ring segment is pressed axially against a portion of the casing by the positioning member.
    Type: Application
    Filed: November 20, 2009
    Publication date: September 29, 2011
    Applicant: Turbomeca
    Inventors: Jean-Baptiste Arilla, Denis Chanteloup, Yvan Lameignere
  • Patent number: 7993099
    Abstract: A helicopter gas turbine engine having a combustion chamber, at least one turbine arranged downstream from the combustion chamber to receive combustion gases emitted by the latter and a nozzle is disclosed. The nozzle has one part forming a diffuser, connected downstream from the turbine and an ejector which has an upstream part surrounding the downstream end of the diffuser and defining therewith an outlet passage for an engine compartment cooling air secondary flow, the ejector running in the downstream direction beyond the downstream end of the diffuser. The ejector has a wall formed at least partially by a sound attenuator calculated to attenuate sound frequencies generated by the rotation of the or each turbine and/or by the combustion chamber.
    Type: Grant
    Filed: September 13, 2007
    Date of Patent: August 9, 2011
    Assignee: Turbomeca
    Inventors: Pierre Michel Baude, Didier Jacques Andre Jouanchicot