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 |
| 7435058 | Ceramic matrix composite vane with chordwise stiffener A means (22) for structurally stiffening or reinforcing a ceramic matrix composite (CMC) gas turbine component, such as an airfoil-shaped component, is provided. This structural stiffening or reinforcing of the airfoil allows for reducing bending stress that ... | 10/14/2008 |
| 7434402 | System for actively controlling compressor clearances Aspects of the invention relate to a system and method for actively controlling compressor clearances in a turbine engine by passing a thermal fluid in heat exchanging relation through a compressor vane carrier. During some operational conditions, such as hot restar... | 10/14/2008 |
| 7435053 | Turbine blade cooling system having multiple serpentine trailing edge cooling channels A cooling system for a turbine blade of a turbine engine having multiple serpentine trailing edge cooling channels in parallel. The serpentine cooling channels are positioned proximate to a trailing edge of the turbine blade and facilitate increased heat removal wit... | 10/14/2008 |
| 7435055 | Locking spacer assembly for a turbine engine A locking spacer assembly for filling a void between adjacent components in a turbine engine. In at least one embodiment, the locking spacer assembly may be configured to be inserted between adjacent turbine blades in a disc groove in a turbine blade stage assembly.... | 10/14/2008 |
| 7431193 | Vibration stress relief of weldments A method of stress relief for stainless steel combustion turbine components includes vibrating the components during welding at a subharmonic frequency. The proper frequency is selected to be below a harmonic frequency, and to produce an amplitude in the range of ΒΌ... | 10/07/2008 |
| 7431757 | Water and sulfur removal from combustion turbine exhaust A combustion turbine power plant (10) incorporating a desiccating scrubber (140) for simultaneously removing water and sulfur from a flue gas (20) of the power plant (10). The desiccating scrubber (140) may include an inlet nozzle ... | 10/07/2008 |
| 7432620 | Seal assembly for a hydrogen-cooled electric power generator with interface impervious to location of plant piping A seal assembly is provided to prevent leakage of cooling fluid from a generator housing. A bracket 26 includes an inlet connectable to power plant piping for receiving a supply of sealing fluid. The inlet is in communication with a bracket passageway 32 | 10/07/2008 |
| 7431565 | Method of repairing a threaded generator rotor blower assembly A method of repairing a generator blower hub assembly (12) and rotor blade (10) removed from the generator blower hub assembly (12) where the rotor blade (10) has fatigued material in threads of a threaded blade root (14). The meth... | 10/07/2008 |
| 7432505 | Infrared-based method and apparatus for online detection of cracks in steam turbine components An online method, system, and computer-readable code for remotely monitoring radiant energy emitted from a turbine blade (106), which may be undergoing an incipient degradation, such as a crack, in a relatively low-temperature, and saturated steam environment... | 10/07/2008 |
| 7428842 | Phased array ultrasonic testing system and methods of examination and modeling employing the same A phased array ultrasonic testing system is for examining turbine disc bores and blade attachments for discontinuities, such as stress corrosion cracking. The system is particularly suited to perform an accurate and efficient inspection of components despite their h... | 09/30/2008 |
| 7427712 | Apparatus and method to prevent loss of conductive ground electrode High voltage coils (40) having an insulated coil surface that includes a composite tape (32) bonded to a secondary conductive layer (34) in a half lap manner. The composite layer comprising a glass conductive tape bonded to a layer of mica paper... | 09/23/2008 |
| 7421842 | Turbine spring clip seal An improved turbine spring clip seal for directing gases to be mixed with fuel in a combustor basket. The turbine spring clip seal may include an inner housing and an outer housing. The inner housing or the outer housing, or both, may be shortened relative to conven... | 09/09/2008 |
| 7421843 | Catalytic combustor having fuel flow control responsive to measured combustion parameters A gas turbine combustor (23) includes a catalytic combustion stage (22) receiving a first portion (18) of a total oxidizer flow (16) and a first portion (30) of a total fuel flow (29) and discharging a partially oxidized fue... | 09/09/2008 |
| 7418858 | Method and system for ripple-spring compression assessment A method and system for directly measuring the compression of a ripple spring (23) in a dynamoelectric machine through a corresponding wedge (27). A compression-assessment tool (3) is provided that includes a carriage (32) for supporting ... | 09/02/2008 |
| 7416390 | Turbine blade leading edge cooling system A cooling system for a turbine blade of a turbine engine having a leading edge impingement cooling channel in series with one or more pressure and suction side impingement cooling channels. The turbine blade may include a double outer wall with impingement cooling c... | 08/26/2008 |
| 7416108 | High strength diffusion brazing utilizing nano-powders A braze material (10) including nano-sized filler material particles (14). The nano-sized particles will melt at a temperature significantly lower than the micron-sized particles used in prior art braze materials, thereby eliminating or reducing the ne... | 08/26/2008 |
| 7416362 | Multidirectionally compliant fastening system A fastening system has at least one peripheral spring and at least one peripherally expandable bushing, with the peripheral spring being at least partially enclosed within the peripherally expandable bushing. The peripheral spring and peripherally expandable bushing... | 08/26/2008 |
| 7413798 | Thermal barrier coating having nano scale features A ceramic thermal barrier coating material (10) containing nano-sized features is predicted to exhibit improved high temperature performance than a comparable material containing fewer of such features. In a coating deposited by an APS process, the nano-sized... | 08/19/2008 |
| 7413407 | Turbine blade cooling system with bifurcated mid-chord cooling chamber A cooling system for a turbine blade of a turbine engine having a bifurcated mid-chord cooling chamber for reducing the temperature of the blade. The bifurcated mid-chord cooling chamber may be formed from a pressure side serpentine cooling channel and a suction sid... | 08/19/2008 |
| 7413053 | Acoustic resonator with impingement cooling tubes Aspects of the invention are directed to an acoustic resonator with improved impingement cooling effectiveness. The resonator includes a plate with an inside face and an outside face. A plurality of passages extend through the plate. The resonator includes a side wa... | 08/19/2008 |
| 7413700 | Methods of manufacturing insulated ceramic matrix composite A composite material (10) formed of a ceramic matrix composite (CMC) material (12) protected by a ceramic insulating material (14). The constituent parts of the insulating material are selected to avoid degradation of the CMC material when the t... | 08/19/2008 |
| 7412320 | Detection of gas turbine airfoil failure A system and method for early detection of a failure of a gas turbine engine airfoil (10), such as but not restricted to a burn through of the airfoil outer skin (12). A sensor (52) provides a signal (54) responsive to a condition of flui... | 08/12/2008 |
| 7402347 | In-situ formed thermal barrier coating for a ceramic component A thermal barrier layer (20) is formed by exposing an oxide ceramic material to a thermal regiment to create a surface heat affected zone effective to protect an underlying structural layer (18) of the material. The heat affected surface layer exhibits... | 07/22/2008 |
| 7398642 | Gas turbine system including vaporization of liquefied natural gas A gas turbine cycle that utilizes the vaporization of liquefied natural gas as an intercooler in an open loop gas turbine system. The system provides an increase in gas turbine cycle efficiencies while providing a convenient system for vaporizing liquefied natural g... | 07/15/2008 |
| 7400072 | Bolted spherical series and phase connector for stator coils of electrical generators A connector arrangement and techniques are provided for reducing eddy current losses and/or skin effects while enabling more readily serviceable series and phase connections between the coil ends 12 and 18 of a generator stator 10. This may be a... | 07/15/2008 |
| 7397163 | Power generator stator assembly, a stator core module assembly, and a process for assembling a stator core module assembly within a stator frame A stator core module assembly (20) is provided which is adapted to be mounted to at least one structural element (16, 18) coupled to a stator frame (10). The stator core module assembly comprises a stator core module (22) adapted to form ... | 07/08/2008 |
| 7395594 | Apparatus and method for the installation of a stator core into a power generator The present invention comprises a method and apparatus for installing a stator core into a power generator 1 that comprises assembling the stator core inside of a container 60, and then moving the container to the power generator. The container is hori... | 07/08/2008 |
| 7397162 | Method and apparatus for checking stator core alignment In one embodiment the present invention provides for a method for checking the alignment of a stator core that comprises placing a laser source 14 and a target 18 a given distance apart on a stator core 10 and activating the laser such that the ... | 07/08/2008 |
| 7393183 | Trailing edge attachment for composite airfoil A trailing edge attachment for a composite turbine airfoil. The trailing edge attachment may include an attachment device for attaching the trailing edge attachment to the airfoil. The attachment device may include a plurality of pins extending through the attachmen... | 07/01/2008 |
| 7390353 | System for removing water from flue gas A system (10) for removing water from a flue gas (12) includes a heat exchanger (16) for receiving a flow of heat exchanging fluid and the flue gas (12). An absorber (40) may have a gas inlet (41) for receiving the flue gas ... | 06/24/2008 |
| 7391141 | Electrical-discharge-inhibiting conformable layer for use in inner-cooler coils A conformable layer (14) for inhibiting electrical discharge between vent tubes (16) and strands (12) in an inner-cooled coil (5). The conformable layer comprises a resistive inner core (24) and a conductive strip (20) wrapp... | 06/24/2008 |
| 7390471 | Apparatus and method for catalytic treatment of exhaust gases An exhaust gas treatment apparatus (20) for reducing the concentration of NOx, HC and CO in an exhaust gas stream (18) such as produced by a gas turbine engine (12) of a power generating station (10). The treatment apparatus in... | 06/24/2008 |
| 7387758 | Tabbed ceramic article for improved interlaminar strength A ceramic article having improved interlaminar strength and a method of forming the article. The article may be a ceramic matrix composite article. The methods of forming the articles increase the interlaminar strength of the article by forming indentations in the a... | 06/17/2008 |
| 7377116 | Gas turbine combustor barrier structures for spring clips A barrier structure (302) blocks exit of spring clip fragments (317) that may break off from a spring clip assembly disposed between a gas turbine engine combustor (300) and a transition piece component (360). The barrier structure (30... | 05/27/2008 |
| 7379632 | Fiber optic Bragg grating strain gauge for application on structures with compliant surface covering An optical measurement device for measuring strain related to deformation of a deformable surface of a component. The optical measurement device includes a fiber tension structure including opposing longitudinal end sections attached to the deformable surface. An op... | 05/27/2008 |
| 7376518 | System and computer program product for non-destructive quantification of thermal barrier coating temperatures on service run parts System and computer program product for non-destructively inspecting and characterizing micro-structural features in a thermal barrier coating (TBC) on a component, wherein the micro-structural features define pores and cracks, if any, in the TBC. The micro-structur... | 05/20/2008 |
| 7372279 | Power generation unit condition monitor using frequency profile analysis A power generator unit condition monitoring system can receive a frequency profile generated by a frequency generating component and can transmit the received frequency to a frequency profile analyzer. The frequency profile analyzer analyzes the transmitted frequenc... | 05/13/2008 |
| 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 |
| 7371043 | CMC turbine shroud ring segment and fabrication method Fabricating a refractory component for a gas turbine engine, such as a turbine shroud ring segment, by arranging refractory fiber tows (24) in a flaired tubular geometry (20) comprising a stem portion (21) and a funnel-shaped portion (22)... | 05/13/2008 |
| 7370466 | Extended flashback annulus in a gas turbine combustor An extended flashback annulus (520) is formed between an exterior surface (506) of a shroud or casing (508) associated with a main swirler assembly inner body (500) or other fuel/air mixing device and the inner surface (514) of an ... | 05/13/2008 |
