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| Number | Title | Issue Date |
| 8182224 | Turbine blade having a row of spanwise nearwall serpentine cooling circuits A turbine blade with an array of cells arranged along the pressure side and suction side of the airfoil to provide near wall cooling to a thin thermal skin that forms the airfoil surface of the airfoil. The blade includes a main spar that forms the support for the t... | 05/22/2012 |
| 8182221 | Turbine blade with tip sealing and cooling A turbine rotor blade with a tip region cooling and sealing circuit that includes a squealer tip with a continuous tip rail, the pressure side tip rail being offset from the pressure side wall, the pressure ad suction side tip rails both include concave shaped defle... | 05/22/2012 |
| 8177489 | Axial tip turbine driven pump An axial tip turbine driven pump in which a first fluid pumped by an inducer is driven by a second fluid that reacts with a turbine blade extending from a shroud on the inducer. The inducer includes a set of screw thread blades and a second set of partial blades tha... | 05/15/2012 |
| 8168912 | Electrode for shaped film cooling hole An electrode used to form a film cooling hole in an air cooled turbine airfoil using the electrode discharge machining process. The electrode includes a number of film hole forming projections each having a metering hole forming section and a diffusion forming secti... | 05/01/2012 |
| 8167537 | Air cooled turbine airfoil with sequential impingement cooling An air cooled turbine airfoil such as a stator vane in which the airfoil is hollowed out and an insert is secured within the hollowed out section that produces sequential impingement cooling of the airfoil. The insert is formed from a plurality of plates bonded toge... | 05/01/2012 |
| 8162617 | Turbine blade with spar and shell A turbine blade with a spar and shell construction in which the spar and the shell are both secured within two platform halves. The spar and the shell each include outward extending ledges on the bottom ends that fit within grooves formed on the inner sides of the p... | 04/24/2012 |
| 8162609 | Turbine airfoil formed as a single piece but with multiple materials An air cooled turbine airfoil includes a multiple pass serpentine flow cooling circuit formed from a metallic printing process in which the blade can be printed from different materials as a single piece blade. The blade includes a multiple pass serpentine cooling c... | 04/24/2012 |
| 8157507 | Damped stator assembly A stator assembly having an inner shroud and an outer shroud with a plurality of airfoils extending between the shrouds, and a vibration damping horn extending from one of the shrouds and aligned with the airfoil, the vibration damping horn having a higher stiffness... | 04/17/2012 |
| 8152462 | Card seal with conical flexible seal A card seal with an annular arrangement of cards that are positioned within an annular groove of a casing, and a conical flexible seal is secured to the casing on the low pressure side of the cards. The cards and the flexible seal both includes slanted surfaces that... | 04/10/2012 |
| 8152450 | Floating air seal for a turbine A gas turbine engine with a floating air seal to form a seal between a rotor disk and an adjacent stator vane segment shroud and allow for both axial and radial shifting of the rotor disk with respect to the stator while maintaining the sealing capability. The float... | 04/10/2012 |
| 8142163 | Turbine blade with spar and shell A turbine blade for use in a gas turbine engine, the turbine blade being made from a spar and shell construction in which the spar extends from the root and forms a cavity in which cooling air is supplied to the blade. The shell is held between the tip cap and the p... | 03/27/2012 |
| 8142153 | Turbine vane with dirt separator A turbine stator vane with a cooling circuit that improves the cooling effectiveness of the airfoil as well as collects any dirt particles before passing the clean cooling an through the cooling circuit. The airfoil includes a 3-pass aft flowing serpentine circuit w... | 03/27/2012 |
| 8141360 | Hybrid gas turbine and internal combustion engine A hybrid engine having a gas turbine engine and an internal combustion engine, both engines driving a common drive shaft. The compressor delivers compressed air to the combustor and to an inlet of the internal combustion engine, the compressed air picks up heat from... | 03/27/2012 |
| 8136358 | Heat reservoir for a power plant A heat reservoir for use in a power plant that burns a dirty fuel such as coal to absorb the heat from the resulting dirty hot gas flow. The heat reservoir includes a number of heat absorbing walls that form dirty hot gas flow passages and clean hot gas flow passage... | 03/20/2012 |
| 8133024 | Turbine blade with root corner cooling The turbine rotor blade with an aft flowing serpentine flow cooling circuit that discharges into a trailing edge cooling circuit and then into a row of exit cooling slots to cool the trailing edge, in which a vortex cooling chamber is formed in the blade platform an... | 03/13/2012 |
| 8133014 | Triple acting radial seal A triple acting radial seal used as an interstage seal assembly in a gas turbine engine, where the seal assembly includes an interstage seal support extending from a stationary inner shroud of a vane ring, the interstage seal support includes a larger annular radial... | 03/13/2012 |
| 8132815 | Card seal for a turbine A card seal with an annular arrangement of cards that form the card seal, where the cards each form an L-shape cross section with a wide front face and a narrow side face, where the side face has a constant width from a top end to a location greater than a mid-point... | 03/13/2012 |
| 8123481 | Turbine blade with dual serpentine cooling A turbine rotor blade with a low cooling flow serpentine circuit to provides cooling for the airfoil. The circuit includes a three pass aft flowing serpentine circuit that begins at the airfoil mid-chord region and connects to a series of multiple impingement coolin... | 02/28/2012 |
| 8118554 | Turbine vane with endwall cooling A turbine stator vane with an outer endwall and an inner endwall, and with an airfoil extending between the two endwalls. The inner endwall includes an endwall edge with a plurality of slots each separated to form compartment slots. A number of impingement cooling h... | 02/21/2012 |
| 8118547 | Turbine inter-stage gap cooling arrangement A turbine inter-stage gap cooling and sealing arrangement for a turbine in which the blade outer air seal that forms a seal with a stage of rotor blades includes a row of cooling air holes on the back side of the blade outer air seal to discharge cooling air toward ... | 02/21/2012 |
| 8113779 | Turbine blade with tip rail cooling and sealing A turbine blade with a stepped tip rail extending along the pressure side and the suction side of the blade tip, the stepped tip rail having tip cooling holes in the stepped portion of the tip rail to provide cooling and sealing for the blade tip. The walls of the a... | 02/14/2012 |
| 8109159 | Instrumentation installation tool for a pressure vessel test rig A pressure vessel test rig for testing a component under high pressure and temperature, the pressure vessel having a flange with an opening so that instrumentation lines can pass from inside the vessel to outside, and a sealing plate with grooves that provide a seal... | 02/07/2012 |
| 8100654 | Turbine blade with impingement cooling A turbine blade with a spar to support a thin thermal skin for the outer airfoil surface. The spar includes multiple rows of impingement cooling cavities that are each connected in series through curved impingement cooling holes to provide cooling for the airfoil wa... | 01/24/2012 |
| 8096768 | Turbine blade with trailing edge impingement cooling A turbine blade for an industrial gas turbine engine, the blade includes a squealer pocket formed by a pressure side tip rail and a suction side tip rail with tip cooling holes opening onto the tip floor in the trailing edge region, a tip corner and two impingement ... | 01/17/2012 |
| 8096767 | Turbine blade with serpentine cooling circuit formed within the tip shroud A turbine rotor blade with a tip shroud that has a baffle seal with a knife edge to form a seal with a honeycomb seal of the shroud, where the tip shroud includes larger ribs that form separate compartment each with smaller ribs that form serpentine flow cooling cir... | 01/17/2012 |
| 8096766 | Air cooled turbine airfoil with sequential cooling An air cooled turbine airfoil, such as a rotor blade, with a sequential impingement cooling circuit that provides a high level of cooling with a low amount of cooling air. The airfoil is formed of a spar and shell construction in which the spar is formed from a seri... | 01/17/2012 |
| 8087893 | Turbine blade with showerhead film cooling holes A turbine rotor blade with a showerhead arrangement of film cooling air for cooling the leading edge of the airfoil, where the film cooling holes each includes a tear drop shaped opening that extends in a radial direction of the airfoil from the film hole breakout a... | 01/03/2012 |
| 8087892 | Turbine blade with dual serpentine flow circuits A turbine blade for use in a high temperature environment and with low cooling flow. The blade includes a dual serpentine flow cooling circuit with a 5-pass serpentine circuit located along the leading edge and the tip section of the blade. A 3-pass serpentine circu... | 01/03/2012 |
| 8087891 | Turbine blade with tip region cooling A turbine blade with a tip region cooling circuit in which cooling air from a serpentine flow circuit in the main airfoil body passes into the tip cooling circuit and around the suction side and pressure side walls to better cool the airfoil and tip with low cooling... | 01/03/2012 |
| 8087881 | Damped stator assembly A stator assembly having an inner shroud and an outer shroud with a plurality of airfoils extending between the shrouds, and a vibration damping horn extending from one of the shrouds and aligned with the airfoil, the vibration damping horn having a higher stiffness... | 01/03/2012 |
| 8083486 | Turbine blade with cooling flow modulation A turbine rotor blade with a 3-pass serpentine flow cooling channel having a first leg located at the leading edge of the airfoil and a third leg located adjacent to the trailing edge of the airfoil and connected to a row of exit slots, and in which a second leg inc... | 12/27/2011 |
| 8083469 | High temperature bearing with lubricant A bearing lubrication system for a high temperature bearing, such as in a small gas turbine engine for a UAV, in which the bearing and lubricant requires a long shelf life, where the bearing includes a solid lubricant movable within a chamber formed within a housing... | 12/27/2011 |
| 8079814 | Turbine blade with serpentine flow cooling A turbine rotor blade with an airfoil cooling circuit and a platform cooling circuit formed integral with each other such that only one cooling flow is used. The airfoil cooling circuit includes a 5-pass aft flowing serpentine circuit with a first leg located adjace... | 12/20/2011 |
| 8079811 | Turbine blade with multi-impingement cooled squealer tip A turbine blade with a squealer tip having a cooling circuit formed from a number of rows of multiple impingement cavities that extend across the blade tip from the pressure side wall to the suction side wall. One of the impingement cavities (main impingement cavity... | 12/20/2011 |
| 8075268 | Turbine blade with tip rail cooling and sealing A turbine blade with a single tip rail extending along the mid-chord section of the blade tip from the trailing edge and around the leading edge region offset from the leading edge wall and ending just before the pressure side wall of the airfoil. The tip rail inclu... | 12/13/2011 |
| 8070454 | Turbine airfoil with trailing edge A turbine airfoil with a relatively thick TBC applied over the airfoil surface. The airfoil has a surface contour on the trailing edge region with a forward end having a large amount of taper and a rearward end with less taper such that a substantially constant wall... | 12/06/2011 |
| 8070450 | High temperature turbine rotor blade A turbine rotor blade made from the spar and shell construction in which the shell formed from a plurality of shell segments each being a thin wall shell segment made from a high temperature resistant material that is formed by a wire EDM process, and where the shel... | 12/06/2011 |
| 8070443 | Turbine blade with leading edge cooling A turbine rotor blade with a leading edge region cooled by a series of impingement cooling cavities that repeats from near the platform to the blade tip to provide impingement cooling for the leading edge without a loss of cooling air flow volume. A cooling supply c... | 12/06/2011 |
| 8070442 | Turbine airfoil with near wall cooling An turbine airfoil and a process for near wall cooling of a turbine airflow with low flow in which the airfoil is formed by a main spar that forms the support structure for the airfoil and forms a series of cooling air collecting chambers extending from the leading ... | 12/06/2011 |
| 8070441 | Turbine airfoil with trailing edge cooling channels A turbine airfoil such as a turbine stator vane used in an industrial gas turbine engine, the vane including a trailing edge region having a thin wall cooling channel arrangement of mini cooling channels formed by a series of rows of elongated flow blockers that for... | 12/06/2011 |
