Did You Know...
...that Thomas Edison's patent application on his phonograph was approved by the Patent Office in just seven weeks? In contrast, it took Gordon Gould, the inventor of the laser, 30 years to obtain his patent -- finally awarded in 1988!
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| Number | Title | Issue Date |
| 8167563 | Blade arrangement A blade arrangement, with a rotor and a plurality of blades which are arranged on the periphery of the rotor in a ring, and a plurality of damping elements are provided. Between two directly adjacent blades at least two damping elements are arranged in series in the... | 05/01/2012 |
| 8113783 | Assembly of a fan blade and of its damper, fan blade damper and method for calibrating the damper A fan blade assembly of a turbojet with fan and a fan blade damper is disclosed. The fan blade includes a root and a platform. The fan blade damper is suitable for being attached in a housing formed in the lower face of the platform. The housing includes an upstream... | 02/14/2012 |
| 8066488 | Highly slenderness rotor The present invention relates to a rotor for gas or steam turbines having a disk (1), an outer cover (2) and a plurality of blades (3). The disk (1) defines the portion of less diameter of the rotor and has an inner surface configured to ... | 11/29/2011 |
| 8011892 | Turbine blade nested seal and damper assembly A turbine blade damper-seal assembly includes a seal nested within a damper such that both the seal and damper are disposed to provide sealing between adjacent blade platforms. The seal traverses the seal slot in the damper and seals the gap between adjacent blade p... | 09/06/2011 |
| 7798778 | Wheel for a rotating flow machine A wheel for a rotating flow machine, comprising a rotor (1) on which a plurality of blades (2) are arranged projecting radially from the rotor (1), with each blade (2) having a root (3) attached to the rotor (1) and a blade ... | 09/21/2010 |
| 7731482 | Bucket vibration damper system A damping system for a turbine bucket. The damping system includes a damper pocket with a variable tangential depth and a damper pin positional within the damper pocket. ... | 06/08/2010 |
| 7628588 | Coated bucket damper pin A damper pin for a turbine bucket includes an elongated main body portion of substantially uniform cross-sectional shape having opposite ends, one only of said opposite ends coated with a corrosion and oxidation-resistant coating. ... | 12/08/2009 |
| 7597542 | Methods and apparatus for controlling contact within stator assemblies A method enables a stator assembly for a turbine engine to be assembled. The method comprises forming a recess within a portion of each base, and coupling the stator vanes within the turbine engine in a circumferentially-spaced arrangement such that the recessed por... | 10/06/2009 |
| 7547192 | Torque-tuned, integrally-covered bucket and related method A turbine bucket includes a shank portion, an adjacent and radially inner dovetail mounting portion, an adjacent and radial outer airfoil portion, with a platform at a radially inner end of said airfoil portion adjacent the shank portion, and an integral cover at a ... | 06/16/2009 |
| 7458779 | Gas turbine or compressor blade A gas turbine or compressor blade, includes a convex outer surface or suction side and a concave inner surface or pressure side, these sides being joined at their upstream ends by a leading edge and at their downstream ends by a trailing edge for the gases and termi... | 12/02/2008 |
| 7429164 | Turbine moving blade A turbine moving blade has a blade portion extending from the basal portion to the tip of the moving blade. The blade root portion is formed at the basal portion of the blade portion and engaged with a corresponding disk groove of a turbine rotor on a one-by-one bas... | 09/30/2008 |
| 7396205 | Rotor blade for a rotary machine A rotor blade having a wing and beam construction for a tip shroud is disclosed. Various construction details are developed for providing a transition zone that extends from the suction side and pressure side of the airfoil to provide a flow path surface of the shro... | 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 |
| 7374400 | Turbine blade arrangement A turbine blade arrangement comprises turbine blades which are secured in adjacent positions to a rotor disc with a cavity defined between root segments and platform segments. A flow deflector within the cavity is provided as an insert such that through a recessed p... | 05/20/2008 |
| 7334993 | Gas turbine rotor blade, gas turbine using the rotor blade, and power plant using the gas turbine A gas turbine rotor blade capable of effectively reducing creep damage by forming a cooling through hole to cool a target area in which significant creep damage of a shroud cover is predicted based on analysis of stress and temperature acting on the gas turbine roto... | 02/26/2008 |
| 7322797 | Damper cooled turbine blade A turbine blade includes an airfoil, platform, shank, and dovetail integrally joined together. A cooling chamber is located under the platform and has a portal exposed outwardly from the shank. A damper seat surrounds the portal and is recessed under the platform fo... | 01/29/2008 |
| 7305905 | Rotatable member with an annular groove for dynamic balancing during rotation A rotatable member is adapted for dynamic balancing by the addition of balancing weights in the form of high speed projectiles fired at the member during rotation in timed relationship with the rotation of the member so as to impact the member at specific circumaxia... | 12/11/2007 |
| 7300253 | Gas turbine blade or vane and platform element for a gas turbine blade or vane ring of a gas turbine, supporting structure for securing gas turbine blades or vanes arranged in a ring, gas turbine blade or vane ring and the use of a gas turbine blade or vane ring The invention relates to a gas turbine blade or vane ring having a supporting structure and gas turbine blades or vanes secured to it. The gas turbine blades or vanes have a blade or vane root, which is successively adjoined by a platform and then a blade profile wh... | 11/27/2007 |
| 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 |
| 7284958 | Separable blade platform A gas turbine engine blade platform including a par of platform retention members. The pair of platform retention members are configured to be located on opposite sides of a disk lug. The retention members interact with the disk lug to restrain radial movement of th... | 10/23/2007 |
| 7274121 | Systems and methods for fastening internal cooling fans to claw-pole electro-mechanical machines Methods, systems, and articles of manufacture for fastening internal cooling fans to claw-pole segments are provided. A claw-pole segment suitable for use in a rotor of an electro-mechanical machine is formed. The claw-pole segment may include a base portion, at lea... | 09/25/2007 |
| 7255531 | Gas turbine tip shroud rails A tip shroud rail for a tip shroud of at least one turbine rotor blade, the tip shroud rail comprising a base integrally attached to the tip shroud, a top distally positioned from the base, an upstream surface, and a downstream surface, wherein the tip shroud rail h... | 08/14/2007 |
| 7252481 | Natural frequency tuning of gas turbine engine blades A tuning notch is defined preferably in the back of a blade root to tune the blade natural frequency in a gas turbine engine. ... | 08/07/2007 |
| 7231713 | Method of reconditioning a turbine blade A method of reconditioning a rotating blade (1) with a shroud (8) following the operation in a gas turbine, includes the application of a barrier (14) placed on the edge of the shroud (8) facing the edge of a shroud (8) of an adjac... | 06/19/2007 |
| RE39630 | Turbine blisk rim friction finger damper A damper for reducing vibrations in an integrally bladed turbine disk is provided. The damper includes an annular member and a plurality of fingers. The annular member is configured so that it is coupled to a face of the integrally bladed turbine disk. The plurality... | 05/15/2007 |
| 7165943 | Geothermal turbine A geothermal turbine comprises a turbine casing, a turbine rotor shaft, a plurality of nozzle diaphragm outer rings fixed to the turbine casing, a plurality of nozzle diaphragm inner rings located radially inside the nozzle diaphragm outer rings, a plurality of nozz... | 01/23/2007 |
| 7134838 | Rotor blade for a rotary machine A rotor blade having a wing and beam construction for a tip shroud is disclosed. Various construction details are developed for providing the shroud with a depression in the shroud and a transition zone that extends from the suction side and pressure side of the air... | 11/14/2006 |
| 7125225 | Cooled rotor blade with vibration damping device A rotor blade for a rotor assembly is provided that includes a root, an airfoil, and a damper. The airfoil has a length, a base, a tip, a first side wall, a second side wall, and at least one cavity. The length extends the base and the tip. The at least one cavity i... | 10/24/2006 |
| 7121802 | Selectively thinned turbine blade A turbine blade includes an airfoil, platform, shank, and dovetail. The platform includes a first side disposed along the pressure side of the airfoil, and an opposite second side disposed along the airfoil suction side. The platform second side includes an integral... | 10/17/2006 |
| 7121800 | Turbine blade nested seal damper assembly A turbine blade damper seal assembly includes a seal and a damper that both abut a radially outermost non-gas path surface. The seal is fabricated from a plastically deformable material and nests within a recess of the damper. The damper is fabricated from a rigid m... | 10/17/2006 |
| 7108480 | Method and apparatus for balancing turbine rotors A method facilitates balancing a gas turbine rotor. The method includes providing a gas turbine rotor including a plurality of turbine blades, wherein at least one turbine blade includes a blade tip shroud that includes a leading edge and a trailing edge that is opp... | 09/19/2006 |
| 7104758 | Rotor of a steam or gas turbine A rotor of a steam or gas turbine is equipped with rotor blades, which are held in the rotor (6) in a plurality of radial rows and comprise a blade foot 1 installed in the rotor (6), a blade leaf (2) and a cover plate (3). An open ... | 09/12/2006 |
| 7104752 | Braided wire damper for segmented stator/rotor and method The segments of the vanes of a stator and the blades of a rotor for a gas turbine engine are dampened by utilizing braided wire cable that is affixed to adjacent segments such that each of the wire strands forming the cable is allowed to move relative to each other ... | 09/12/2006 |
| 7090393 | Using thermal imaging to prevent loss of steam turbine efficiency by detecting and correcting inadequate insulation at turbine startup The invention involves the use of thermal imaging equipment to take infrared images of a steam turbine during start-up. The exterior temperatures developed from the infrared images are correlated with turbine vibration data to determine which insulation temperature ... | 08/15/2006 |
| 7074012 | Turbine blade A front engagement face 27f of a front engagement member 27 and a rear engagement face 29f of a rear engagement member 29 are respectively configured to be located a little back from a virtual plane VF coplanar with one side... | 07/11/2006 |
| 7066713 | Rotor blade for a rotary machine A rotor blade having a wing and beam construction for a tip shroud is disclosed. Various construction details are developed for providing a transition zone that extends from the suction side and pressure side of the airfoil to provide a flow path surface of the shro... | 06/27/2006 |
| 7066714 | High speed rotor assembly shroud An improved rotor assembly shroud includes at least one reinforcing flange on the upper surface of the shroud. The strength provided by the reinforcing flange allows for a smaller shroud thickness resulting in a net reduction of shroud mass. The lower shroud mass re... | 06/27/2006 |
| 7059835 | Turbine, in particular a gas turbine, and a blade A turbine (1) with a rotationally symmetrical rotor (4) on rotary bearings which has on its outer perimeter moving blade retaining grooves running transverse to the outer perimeter and set at the same angular distance from one another, having a moving ... | 06/13/2006 |
| 7055306 | Combined stage single shaft turbofan engine A turbofan engine includes a combined stage rotor mounted for common rotation with a shaft, a compressor stage, and a turbine stage. Each of the plurality of fan blades of the combined stage rotor are contiguous with a respective compressor blade. The combined stage... | 06/06/2006 |
| 7028506 | Indoor unit of packaged air conditioner Disclosed is an indoor unit of a packaged air conditioner including a cabinet having an inlet grill at a lower part and an outlet grill at an upper part so as to provide a circulation space of an indoor air, an evaporator established on a slant at an inner upper par... | 04/18/2006 |
