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| Number | Title | Issue Date |
| 8182211 | Turbo machine A turbomachine (1), in particular a gas turbine, has a stator (2) and a rotor (3) and with at least one axial sealing device (6) arranged between them. On the stator side, the sealing device (6) has a radially stepped sealing conto... | 05/22/2012 |
| 8142141 | Apparatus for turbine engine cooling air management An exemplary embodiment of the invention is directed to a turbine engine having a rotatable turbine rotor assembly, a stationary nozzle assembly disposed adjacent thereto and a wheel space defined therebetween. The wheel space receives cooling air therein and includ... | 03/27/2012 |
| 8083475 | Turbine bucket angel wing compression seal The present application provides an angel wing seal for a turbine bucket. The angel wing seal may include a first wing with a sinusoidally-shaped outer edge and a number of wing teeth positioned thereon. ... | 12/27/2011 |
| 8075256 | Ingestion resistant seal assembly A seal assembly limits gas leakage from a hot gas path to one or more disc cavities in a gas turbine engine. The seal assembly includes a seal apparatus associated with a blade structure including a row of airfoils. The seal apparatus includes an annular inner shrou... | 12/13/2011 |
| 8016552 | Stator—rotor assemblies having surface features for enhanced containment of gas flow, and related processes A stator-rotor assembly which includes at least one interface region between the stator and rotor is described. At least one stator or rotor surface in the interface region includes a pattern of concavities. The concavities restrict gas flow through a gap between th... | 09/13/2011 |
| 8007230 | Turbine seal plate assembly A seal plate assembly for use with a rotor wheel assembly of a turbine engine. The seal plate assembly may include a seal plate positioned about a rim of a rotor wheel. The seal plate may include a number of seal plate segments and a number of locking pins extending... | 08/30/2011 |
| 7967559 | Stator-rotor assembly having surface feature for enhanced containment of gas flow and related processes A stator-rotor assembly which includes at least one interface region between the stator and rotor is described. At least one stator or rotor surface in the interface region includes a pattern of inverted turbulators. The inverted turbulators restrict gas flow throug... | 06/28/2011 |
| 7967558 | Hybrid seal assembly for a fan-turbine rotor of a tip turbine engine The hybrid seal assembly includes a seal for use with rotating surfaces which may suffer significant deflections such as for sealing between flanges and mating surfaces typical of annular seal face surface of a diffuser section of a tip turbine engine. ... | 06/28/2011 |
| 7946808 | Seal between rotor blade platforms and stator vane platforms, a rotor blade and a stator vane A rotor and a stator assembly, wherein the rotor (30) comprises at least one stage of rotor blades (32) and the stator (34) comprises at least one stage of turbine stator vanes (36). The rotor blades (32) have aerofoils and platfor... | 05/24/2011 |
| 7927069 | Hoop seal with partial slot geometry A rotor blade assembly includes a slot for mounting a rotor blade that extends partially through a rotor disk and a continuous uninterrupted hoop seal that extends about the circumference of the rotor disk. The rotor disk includes an integrally formed seal that incl... | 04/19/2011 |
| 7862294 | Labyrinth seal in a stationary gas turbine The invention relates to a segmented inner ring for holding guide blades. According to the invention, a lateral wall opposing the front side of the inner ring and pertaining to a shaft shoulder formed on the rotor shaft extends radially, and respectively one half of... | 01/04/2011 |
| 7857582 | Abradable labyrinth tooth seal A seal assembly (52, 54) for a gas turbine engine (10). The seal assembly (52, 54) includes a first seal member (40) including an abradable structure having at least first and second seal portions (58, 64) radially spaced from each... | 12/28/2010 |
| 7635251 | Stator assembly for a rotary machine A stator assembly having a windage cover for structure adjacent to a cavity bounded by rotating elements in a rotary machine is disclosed. Various construction details are developed for damping vibrations in the windage cover as the windage cover bounds a cavity hav... | 12/22/2009 |
| 7581923 | Gas turbine engine with purge air pump and guide A pump/flow guide is positioned in a gas turbine engine and attached to a transition duct to face a turbine disk. The pump/flow guide provides a smooth path for guiding purge flow to resist the ingestion of hot gas. One leg of the pump/flow guide extends radially ou... | 09/01/2009 |
| 7540709 | Box rim cavity for a gas turbine engine A gas turbine engine having a rotor with blades and a stationary vane, a platform seal is formed between the blade and vane for inhibiting ingestion of hot gas from a hot gas flow through the turbine into turbine wheel spaces, the platform seal including axial exten... | 06/02/2009 |
| 7520718 | Seal and locking plate for turbine rotor assembly between turbine blade and turbine vane A seal plate system adapted to fit between axially adjacent turbine blades and turbine vanes is disclosed. The seal plate system may be formed from a plate adapted to position a turbine blade in a rotor assembly and lock the turbine blade into the rotor assembly. Th... | 04/21/2009 |
| 7448851 | Seal arrangement A seal arrangement 30 presents a barrier in the form of a combined seal and anti-fret liner 36 across a shroud ring cavity 32 in order to inhibit air leakage in the platform gap between platforms 33. It will be understood that these gaps ... | 11/11/2008 |
| 7430802 | Labyrinth seal in a stationary gas turbine The invention relates to a segmented inner ring for holding guide blades. According to the invention, a lateral wall opposing the front side of the inner ring and pertaining to a shaft shoulder formed on the rotor shaft extends radially, and respectively one half of... | 10/07/2008 |
| 7371044 | Seal plate for turbine rotor assembly between turbine blade and turbine vane This invention relates to a seal plate system adapted to fit between axially adjacent turbine blades and turbine vanes to seal a rim cavity. The seal plate system may be formed from a seal plate supported by a plurality of extended disk lugs extending from a disk. T... | 05/13/2008 |
| 7334331 | Methods and apparatus for machining components A method of using a machining assembly to machine a plurality of different turbine components that include a dovetail having a contoured profile. The method includes removably coupling a first set of retainers into the machining assembly, the first set of retainers ... | 02/26/2008 |
| 7291946 | Damper for stator assembly A damper for a stator assembly, the stator assembly comprising a stator segment and a seal mounted to the stator segment. The damper locates between the stator segment and the seal, and comprises: a medial section; and opposed arms extending from the medial section.... | 11/06/2007 |
| 7287957 | Inner shroud for the stator blades of the compressor of a gas turbine An inner shroud (6) for the stator blades (3) of the compressor of a gas turbine is a plastic component and includes certain additives, which may be concentrated in partial areas for specific functionality, and/or pre-manufactured inserts for sealing, ... | 10/30/2007 |
| 7264442 | Seal structure A combustion chamber inner casing (24) has a flange (28) on its downstream end. A retaining seal ring (40) is bolted to the flange (28) and traps a flanged seal ring (46) against the flange (28) in a manner that allows the s... | 09/04/2007 |
| 7258529 | Securing assembly A securing assembly comprises a first rotatable member defining a first recess. The assembly also includes a second rotatable member defining a second recess. The first recess has an engagement formation. Securing means are locatable in the first and second recesses... | 08/21/2007 |
| 7244104 | Deflectors for controlling entry of fluid leakage into the working fluid flowpath of a gas turbine engine A deflector arrangement is provided for improving turbine efficiency by imparting added tangential velocity to a leakage flow entering the working fluid flowpath of a gas turbine engine. ... | 07/17/2007 |
| 7229247 | Duct with integrated baffle An integrated duct and baffle arrangement employing a hairpin transition area such that the construction is adapted to flex under thermal conditions. ... | 06/12/2007 |
| 7229248 | Blade structure in a gas turbine In the blade structure in a gas turbine, front-edge including angles are made large. As a result, a curve of a relative relationship between incidence angles ic1 and is1 and pressure loss becomes mild. Entrance metal angles are made small. As a result,... | 06/12/2007 |
| 7220099 | Sealing arrangement for a rotor of a turbo machine A sealing arrangement for a rotor of a turbomachine includes a blade (2), a heat shield (3, 4) and a sealing element (5, 6) for sealing between the blade (2) and the heat shield (3, 4) when the blade (2), heat shield (3, ... | 05/22/2007 |
| 7201560 | Mounting structure for a packing ring seal segment in a turbine A packing ring holder assembly for packing seal segments about a steam turbine rotor includes a nozzle box and a holder cooperable to form a dovetail for securing packing ring segments to the nozzle box. A spring is interposed between the nozzle box and packing ring... | 04/10/2007 |
| 7186074 | Axial flow stream turbines A drum-type rotor carries an annular row of moving blades having root portions held within a slot in the periphery of the rotor. A turbine casing surrounds the rotor and carries a static blade assembly with an annular row of static blades which, together with the an... | 03/06/2007 |
| 7175387 | Seal arrangement for reducing the seal gaps within a rotary flow machine A seal arrangement for reducing the seal gaps within a rotary flow machine, preferably an axial turbomachine, has rotor blades and guide vanes, which are respectively arranged in at least one rotor blade row and guide vane row and have respective blade/vane roots ( | 02/13/2007 |
| 7172199 | Inner air seal anti-rotation device An anti-rotation device for preventing rotation of a damper spring and an inner air seal in a stator assembly is provided. The anti-rotation device is formed by a lug positioned within a slot at a center of an inner air seal arc segment. The lug engages a slot in th... | 02/06/2007 |
| 7152864 | Seal assembly It is disclosed a seal assembly (5) which comprises a layered structure. It consists of a first layer (9, 12) of a base material, a second layer (10) of thermal insulating material on top of the base material and a third layer (11, 12) of... | 12/26/2006 |
| 7121791 | Main gas duct internal seal of a high-pressure turbine A high-pressure turbine of a gas-turbine engine provided with a turbine disk (1) carrying rotor blades (2) and with stator blades (3), and with a lateral wheel cavity (5) being formed between the turbine disk (1) and the stator rin... | 10/17/2006 |
| 7121790 | Gas turbine arrangement A gas turbine arrangement with heat accumulation segments (3) which are arranged, opposite moving blades, on a casing of the gas turbine, and with guide vanes (1) which are arranged adjacently to the heat accumulation segments (3) over the circu... | 10/17/2006 |
| 7117983 | Support apparatus and method for ceramic matrix composite turbine bucket shroud A shroud support apparatus for a ceramic component of a gas turbine having: an outer shroud block having a coupling to a casing of the gas turbine; a spring mass damper attached to the outer shroud block and including a spring biased piston extending through said ou... | 10/10/2006 |
| 7097423 | Endface gap sealing for steam turbine diaphragm interstage packing seals and methods of retrofitting Spline seals are disposed in circumferentially registering slots of adjacent arcuate packing seal segments disposed in grooves on inner hooks of a steam turbine diaphragm assembly. The spline seals extend in a gap between the endfaces of the segments and minimize or... | 08/29/2006 |
| 7059829 | Compressor system with movable seal lands Aspects of the invention relate to a compressor system for a turbine engine that not only provides large compressor seal clearances as the engine passes through non-standard operating conditions, but also minimizes the clearances during normal engine operation, ther... | 06/13/2006 |
| 7059821 | Method and apparatus to facilitate sealing within turbines A method to facilitate sealing between a rotary component and a stationary component is provided. The rotary component includes at least one bucket secured thereon, the bucket having a flow admission side and a flow exit side. The method includes coupling a spill st... | 06/13/2006 |
| 7032904 | Inner air seal anti-rotation device An anti-rotation device for preventing rotation of a damper spring and an inner air seal in a stator assembly is provided. The anti-rotation device is formed by a lug positioned within a slot at a center of an inner air seal arc segment. The lug engages a slot in th... | 04/25/2006 |
