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| Number | Title | Issue Date |
| 8182209 | Air reinjection compressor Reinjecting air to the inlet of a compressor in order to improve its pumping margin. The inlet stator of the compressor includes injection holes passing through at least some of the vanes in the vicinity of their pivots. ... | 05/22/2012 |
| 8182202 | Coupling device for a turbine upstream guide vane, a turbine comprising same, and aircraft engine fitted therewith A coupling device for coupling a turbine upstream guide vane which is coupled to a supporting part which itself attached to a stabilizing part is disclosed. The coupling device includes a interlocking device for interlocking a supporting end of the supporting part w... | 05/22/2012 |
| 8181501 | Tool for rammer die-cutting A tool for rammer die-cutting an annular part is disclosed. The tool includes a lower insert holder with a lower die cooperating with an upper insert holder and an upper die. Both dies include a die-cutting annular recess. The tool further includes a guiding device ... | 05/22/2012 |
| 8181440 | Arrangement of a semiconductor-type igniter plug in a gas turbine engine combustion chamber An igniter plug arrangement is disclosed. The arrangement includes an igniter plug of the semiconductor in shell type, a duct secured to a combustion chamber of a gas turbine engine, a floating sleeve via which the igniter plug is mounted in the duct, and a system f... | 05/22/2012 |
| 8177933 | Method to manufacture a hollow, single-piece bladed disc A first insert (15) forming a ring is placed inside and in contact with a core (10) in degradable material. On the outer face of the core a plurality of inserts (20) is arranged each comprising a platform (21) applied against the outer fa... | 05/15/2012 |
| 8177497 | Joint between a metal part and a ceramic part based SiC and/or C An assembly between a metal piece and a ceramic material piece made of SiC and/or C based ceramic material. The assembly includes a stack structure including the following elements assembled together in pairs in this order, by brazing: the metal piece; a first inter... | 05/15/2012 |
| 8177493 | Airtight external shroud for a turbomachine turbine wheel External shroud for a turbomachine turbine wheel, this shroud being formed of ring sectors (120) positioned circumferentially end to end, and each comprising a circumferentially directed plate (136) bearing a block (138) of abradable material, t... | 05/15/2012 |
| 8177490 | Control device of variable pitch vanes in a turbomachine A control device of variable pitch vanes in a turbomachine is disclosed. The control device includes a ring surrounding a casing of the turbomachine and connected by links to the variable pitch vanes, and a jack connected to the ring in order to displace it in rotat... | 05/15/2012 |
| 8172527 | Intermediate casing extension for an aircraft jet engine, comprising a sectorised annular groove for receiving the nacelle covers An extension of an intermediate casing for an aircraft jet engine, intended to project towards the downstream end from an external shell of said intermediate casing is disclosed. This extension includes an annular connecting downstream end forming an annular groove ... | 05/08/2012 |
| 8172526 | Sealing a hub cavity of an exhaust casing in a turbomachine The exhaust casing of a turbomachine includes a cylindrical jacket for guiding a flow of exhaust gas and for defining a hub cavity inside the casing, the jacket including at its ends an annular flange and a radial annular portion extending inwards and formed with an... | 05/08/2012 |
| 8172509 | Device for detecting breakage of a turbomachine shaft A device for detecting breakage of a turbomachine shaft is disclosed. The device includes a shaft having an upstream end and a downstream end; a rod having an upstream end and a downstream end, and placed coaxially inside the shaft, the downstream end of the rod bei... | 05/08/2012 |
| 8171807 | Iso-kinetic probe for the analysis of the pollution of gases generated by an aircraft engine An iso-kinetic probe for the analysis of the pollution of the gases generated by an aircraft engine is disclosed. The probe includes an air tapping tube having an upstream end inserted into a conduit wherein a gas stream flows and a gas stream inlet velocity adjustm... | 05/08/2012 |
| 8167552 | Asymmetrical member for locking ring sectors to a turbine engine casing A locking member for a device for fastening ring sectors to an aircraft turbine engine casing is disclosed. The member has first and second clamping branches, which are connected together by curving joining portions, via a connecting branch. The joining portion of c... | 05/01/2012 |
| 8166910 | Process and device for coating fibers with a metal by a liquid method A device used for a process of coating fibers with a metal by a liquid method is disclosed. In this process, a fiber is drawn through a bath of molten liquid metal so as to be coated with the molten liquid metal. The liquid metal bath is maintained in a crucible of ... | 05/01/2012 |
| 8162616 | Turbomachine fan A turbomachine fan including blades and inter-blade platforms having radial flanges fastened to flanges of a rotor disk by threaded rods inserted into bushes mounted in orifices in the flanges of the platforms is disclosed. Each bush includes at least one deformable... | 04/24/2012 |
| 8162602 | Turbomachine casing including a device for preventing instability during contact between the casing and the rotor A cylindrical casing for a turbomachine that is suitable for receiving a rotor fitted with at least one bladed wheel is disclosed. The casing includes a device for preventing instability during contact between the casing and the bladed wheel. The device includes a s... | 04/24/2012 |
| 8162597 | Stage of variable-pitch vanes for a turbomachine A stage of variable-pitch vanes for a turbomachine is disclosed. The vanes include internal pivots engaged in corresponding housings of a sectorized internal ring. Each ring sector includes axial orifices for mounting two pins for the radial retention of the ring se... | 04/24/2012 |
| 8162594 | Cooled blade for a turbomachine A cooled blade forming an upstream guide vane element for a turbomachine is disclosed. The airfoil includes a longitudinal cavity with a first opening at one end and a second opening at the other end, a tubular sleeve being housed in the cavity with a first end in t... | 04/24/2012 |
| 8162593 | Inter-turbine casing with cooling circuit, and turbofan comprising it An inter-turbine casing for a turbofan is disclosed. The casing includes an outer ring, an inner ring, and an intermediate ring between the inner ring and the outer ring. The inner and intermediate rings have respective openings for the passage of cooling air. The c... | 04/24/2012 |
| 8161785 | Circular-shaping device for a rotating part, especially an exhaust housing of a turbo engine A circular-shaping device for a rotating part, especially an exhaust housing of a turbo engine is disclosed. The device includes a lower unit with two shaping rollers mounted movably along an axis X1 and one shaping roller mounted movably along an axis Y1 | 04/24/2012 |
| 8161753 | Brazed joint between a titanium-based metal part and a ceramic part based on silicon carbide (SIC) and/or carbon An assembly including a stack structure made up of the following elements assembled together by brazing: the titanium-based metal piece; a first intermediate piece suitable for deforming to accommodate differential expansion between the metal piece and a piece made ... | 04/24/2012 |
| 8161727 | System providing braking in a gas turbine engine in the event of the turbine shaft breaking A device for, in a gas turbine engine, braking a turbine including a rotor driving a shaft capable of rotating with respect to a stator in the event of said shaft breaking is disclosed. The device includes a first braking member provided with at least one abrasive e... | 04/24/2012 |
| 8157506 | Device for supplying ventilation air to the low pressure blades of a gas turbine engine A device for supplying ventilation air to a turbine rotor of a gas turbine engine including a first turbine disk, a second turbine disk, and a downstream shell ring together forming a one-piece drum is disclosed. The second turbine disk includes cavities machined in... | 04/17/2012 |
| 8157502 | Pump with an elastic device on a rolling bearing Pump (1) comprising a rotary shaft (30), a bearing housing (80) that is fixed relative to the rotary shaft, at least one rolling bearing (70) the inner ring (71) of which is connected to the said rotary shaft and the outer ring ( | 04/17/2012 |
| 8156744 | Annular combustion chamber for a gas turbine engine An annular gas turbine engine combustion chamber including an outer wall and an inner wall connected by a wall forming the chamber bottom is disclosed. The walls delimit sources of combustion with axes inclined relative to the axis of the chamber. The chamber-bottom... | 04/17/2012 |
| 8156742 | Fuel-injection device in a turbomachine A fuel-injection device in a turbomachine is disclosed. The device includes a high-pressure pump supplying a flow control valve, whose outlet is connected via a pressurization and cut-off valve to a fuel-injector feed pipe. The valve is connected to the inlet and to... | 04/17/2012 |
| 8156727 | Fan nozzle of adjustable section An adjustable section nozzle having a ring of deformable panels arranged close to its trailing edge is disclosed. Each panel has a dual-strip type structure made up of two materials presenting different coefficients of expansion, together with controlled heater devi... | 04/17/2012 |
| 8153317 | Preheating heat exchanger for a fuel cell The invention relates to a heat exchanger for a hot fuel cell. The heat exchanger includes a first flow circuit for receiving a cool air stream and a second flow circuit for receiving a hot fluid coming from the cell, the first and second flow circuits having common... | 04/10/2012 |
| 8152460 | Device for bleeding air from a turbomachine compressor A turbomachine compressor, including an air bleed device including a duct having a suction end opening out into an outer casing of the compressor level with a rotor wheel and a stator stage of the compressor is disclosed. A screen sheet of annular shape is mounted r... | 04/10/2012 |
| 8152456 | Turbojet compressor The invention relates to a turbojet compressor comprising a shroud and a plurality of blades, each fixed via its root to the shroud. Level with each blade root, the shroud presents a suction-side ramp and a pressure-side ramp extending from the trailing edge of the ... | 04/10/2012 |
| 8152447 | Intermediate casing for an aircraft jet engine, of improved design The invention relates to an intermediate casing (21) for an aircraft jet engine, comprising an outer shell (23) and also front and rear flanges (25, 27) which are arranged radially inside with respect to the outer shell, the casing (21) a... | 04/10/2012 |
| 8152438 | Installing a shaft in a bearing comprising a self-releasing nut A gas turbine engine including a shaft, a bearing, a coupling supported by the bearing is disclosed. The shaft is engaged by an end trunnion inside the coupling and fixed to the coupling by a cylindrical nut. The engine is characterized in that the nut is in axial a... | 04/10/2012 |
| 8152137 | Relief valve in a turbomachine A relief valve in a turbomachine is disclosed. The valve includes a gate designed to be mounted so as to pivot about a shaft for the opening and closing of an orifice for the passage of air, a seal, and an attachment device for attaching the seal to the peripheral e... | 04/10/2012 |
| 8147205 | Turbomachine blade The turbomachine blade has ribs formed in the vicinity of the trailing edge. Over the major fraction of the trailing edge (42), in zones where the temperature in operation is particularly high, the ends (53) of the ribs are closer to the trailing edge ... | 04/03/2012 |
| 8147200 | Turbine engine wheel A wheel of a turbine engine such as an airplane turbojet is disclosed. The wheel includes a disk having blades and at least one ring of a metal matrix composite material mounted on the disk in order to take up centrifugal forces during operation. The wheel further i... | 04/03/2012 |
| 8147191 | Damping device for turbomachine stator A turbomachine stator forming a stator vane ring or upstream guide vane element including a plurality of vanes placed radially between a first inner ring and a second outer ring is disclosed. The two rings are concentric and the second ring has a cylindrical outer s... | 04/03/2012 |
| 8147189 | Sectorized nozzle for a turbomachine A sectorized nozzle for a turbomachine, the nozzle being made up of cylindrical sectors and comprising two annular platforms interconnected by substantially radial vanes, together with an annular rail for supporting elements of abradable material, each inner platfor... | 04/03/2012 |
| 8147187 | Control of variable-pitch blades A device for controlling a pivot of a variable-pitch blade in a stator of a turbomachine compressor is disclosed. The device for controlling a pivot of a variable-pitch blade includes a control lever and a pivot with a bottom end and a top end. The top end is connec... | 04/03/2012 |
| 8147184 | Air intake circuit arrangement for high pressure compressor of a turbine engine In a compressor stage including a movable bladed wheel having movable blades and a fixed bladed wheel having fixed blades, an air tapping circuit arrangement includes a movable wheel manifold designed to collect an air flow aspirated from the movable blades and a fi... | 04/03/2012 |
| 8142152 | Connection of radial arms to a circular sleeve via axes and spacers The connection assembly of an arm to a sleeve is carried out substantially by parts of axes crossing the arm and the spacers between the parts of axes and the sleeve and the assembly bolts. The assembly and the disassembly are easy, even with highly reduced encumbra... | 03/27/2012 |
