Quotables
"It is my heart-warmed and world-embracing Christmas hope and aspiration that all of us, the high, the low, the rich, the poor, the admired, the despised, the loved, the hated, the civilized, the savage (every man and brother of us all throughout the whole earth), may eventually be gathered together in a heaven of everlasting rest and peace and bliss, except the inventor of the telephone. "
Mark Twain ; Christmas greetings, 1890
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| Number | Title | Issue Date |
| 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 |
| 7458778 | Turbine airfoil with a bifurcated counter flow serpentine path The present invention is a serpentine cooling circuit for a turbine blade, where a pressure side 3-pass serpentine cooling passage flowing generally toward the trailing edge of the blade provides cooling for the pressure side of the blade, and a suction side 3-pass ... | 12/02/2008 |
| 7452135 | Friction damper for a bearing A support for a bearing that provides for damping of the bearing and for centering of the bearing within a housing, in which a plurality of cone shaped annular plates are stacked in series and positioned between the housing and an outer race of the bearing, the annu... | 11/18/2008 |
| 7448844 | Blisk having partially cut blade attachment An integrally bladed rotor disk, commonly referred to as an IBR or a blisk, includes partial cuts in the rotor disk extending from the rotor disk surface and along side the blades to form a partial root portion below each blade. A damaged blade can be removed from t... | 11/11/2008 |
| 7445426 | Guide vane outer shroud bias arrangement A compressor includes a stator having a plurality of vane sectors each with an outer shroud having a forward and a rearward guide vane extending there form, the vane sector being mounted in an annular slot of the casing, the guide vanes forming a gap between the tip... | 11/04/2008 |
| 7445424 | Passive thermostatic bypass flow control for a brush seal application In a gas turbine engine having a rim cavity formed between a rotor disk and a stator, and a brush seal or other seal member providing an airflow seal between the stator and a side plate of the rotor disk, a thermally responsive valve device is located in the bypass ... | 11/04/2008 |
| 7445213 | Stepped labyrinth seal A stepped labyrinth seal for a turbomachine, the seal having a stepped portion with a redirecting groove formed thereon to redirect a leakage flow through the gap in substantially a reverse direction and onto a surface of the finger such that the dynamic pressure of... | 11/04/2008 |
| 7444818 | Batch fired heat reservoirs A power plant that burns a dirty fuel like coal to produce a hot gas stream, and directs the hot gas stream into a turbine to produce power. Located between the combustor and the turbine is at least two heat reservoirs that operate in parallel. When a first heat res... | 11/04/2008 |
| 7431504 | High temperature damper for a roller bearing A high temperature damper for a roller bearing having a long shelf life and capable of withstanding temperatures in a gas turbine engine shaft. The damper includes a damping chamber formed between a stator housing and the outer race of the bearing, and is filled wit... | 10/07/2008 |
| 7429132 | Hydrostatic air bearing with a porous metal ring A hydrostatic air bearing in which a journal rotates within a cavity formed within a bearing race, and a sleeve that rotates with the journal within the cavity of the bearing race, where the sleeve is formed of a porous metallic material that allows for a bearing fl... | 09/30/2008 |
| 7422417 | Airfoil with a porous fiber metal layer An air cooled airfoil for use in a gas turbine engine includes a base, a porous material on the base, and a thermal barrier coating (TBC) applied to the porous material, with cooling holes in the base and the TBC to allow for cooling air to flow from within the airf... | 09/09/2008 |
| 7422413 | Shroud tip clearance control ring The present invention is a shroud tip clearance control ring for use in a gas turbine engine in which a rotary blade and a shroud ring form a gap that forms a blade outer air seal, and where the shroud ring is formed of two shroud segment halves, each shroud segment... | 09/09/2008 |
| 7419363 | Turbine blade with ceramic tip A blade used in a gas turbine engine in which the blade is formed of a blade portion made from a metallic material, and a tip portion made of a ceramic material, the tip portion forming at least 10% of the overall blade length such that the blade is lighter than a a... | 09/02/2008 |
| 7410342 | Airfoil support A blade or a vane preferably used in a gas turbine engine, the blade or vane being formed of a metallic core or insert with a ceramic airfoil surface bonded to the metallic insert. The insert includes a series of concave and convex portions arranged along the outer ... | 08/12/2008 |
| 7404700 | Turbine airfoil with fibrous reinforced TBC An airfoil used in a gas turbine engine exposed to high temperatures, the airfoil having a TBC layer that includes fibers of reinforcing material to add strength to the layer of TBC. The fibers are made from a similar material in which the airfoil is made from to wi... | 07/29/2008 |
| 7401981 | Bearing damper having coiled wire A bearing damper includes a coiled wire wrapped around projections formed on an outer race of the bearing, and supported by a casing having projections extending toward the coiled wire. Projections on the outer race are aligned with recesses on the casing, while pro... | 07/22/2008 |
| 7399159 | Detachable leading edge for airfoils The airfoil of fan/compressor and turbine rotors is constructed to include a leading edge that is detachable. The leading edge includes an airfoil section and an attachment that is adapted to fit into a complementary groove formed in the rotor disk. The detachable l... | 07/15/2008 |
| 7397144 | Bearing-less floating wind turbine A floating wind turbine in which a floating barge having a doughnut shape with an open center rigidly supports a plurality of airfoils such that a wind produces a rotation of the blades and the barge. The airfoil and barge assembly is connected to a rigid shaft that... | 07/08/2008 |
| 7393182 | Composite tip shroud ring A gas turbine engine includes a tip shroud ring rotatably supported on a last stage blade assembly in a turbine. The tip shroud ring is formed entirely of a fiber reinforced ceramic matrix composite material to provide a very light weight tip shroud ring, but also a... | 07/01/2008 |
| 7390168 | Vortex cooling for turbine blades A near wall cooling technique for cooling the pressure and suction sides of a turbine airfoil that includes a matrix of cells oriented chord-wise and extending longitudinally having vortex chambers with vortex creating passages feeding coolant from interior of the b... | 06/24/2008 |
| 7387030 | Process for determining a remaining life for a gas turbine airfoil A process for determining a remaining life of a part, such as an airfoil in a gas turbine engine, comprising the steps of establishing the boundary conditions that act on the part, determining the material properties of the part, creating a 3D finite element model o... | 06/17/2008 |
| 7360434 | Apparatus and method to measure air pressure within a turbine airfoil A pressure tap probe having a flexible probe tip that is flexible enough to seal a film cooling hole having a roughened surface such as a TBC applied around the hole. The flexible probe tip is flexible enough to deform around the film cooling hole such that an accur... | 04/22/2008 |
| 7300255 | Laminated turbomachine airfoil with jacket and method of making the airfoil An improvement for a turbomachinery blade having an airfoil portion, a neck portion, and a root portion, the neck portion extending from the root portion, and the airfoil portion extending from the neck portion, and the root portion being tear-drop shaped, includes ... | 11/27/2007 |
| 7293414 | High performance method for throttling of closed gas turbine cycles A closed cycle recuperator microturbine and an open cycle heat generating system for supplying heat for driving the turbine includes a pair of valves fluidly connected to the compressor inlet and compressor outlet for bleeding air therefrom when the microturbine eng... | 11/13/2007 |
| 7232258 | Passive bearing clearance control using a pre-swirler A rotary bearing for high speed and high temperature use is disclosed, the bearing having an inner race and an outer race with a roller ball positioned between the races, and a cooling fluid passageway passing through the races, where one of the passages in the oute... | 06/19/2007 |
| 7080971 | Cooled turbine spar shell blade construction A blade for a rotor of a gas turbine engine is constructed with a spar and shell configuration. The spar is constructed in an integral unit or multi-portions and includes a first wall adjacent to the pressure side and a second wall adjacent to the suction side, a ti... | 07/25/2006 |
| 6877952 | Passive clearance control The clearance between the tips of the rotor blades and the segmented shroud of a gas turbine engine is controlled by a passive clearance control that includes a support ring made from a low thermal expansion material supporting a retainer for the blade outer air sea... | 04/12/2005 |
