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...Daniel Webster invented a "bull plow" to pull out tree stumps. It didn't catch on because it was huge and required four oxen to pull it!
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| Number | Title | Issue Date |
| 6695036 | Method for producing a cast part, model mold, and ceramic insert for use in this method The invention relates to a method for producing a cast part of a thermal turbo-machine by way of a known casting process. Between a model mold and a ceramic insert, projections are located on the ceramic insert, whereby the projections have an angle (�... | 02/24/2004 |
| 6676897 | High-temperature alloy The invention relates to a high-temperature alloy for a mechanically highly stressed component of a thermal machine based on doped TiAl and a method to improve a mechanical property of the alloy. The alloy has the following composition (in atomic %): 44.5... | 01/13/2004 |
| 6673467 | Metallic component with protective coating A metallic component exposed to high temperature steam is provided with a coating comprising a thin primer layer deposited on the surface of the metallic component and a thicker overlay layer on top of the primer layer. The primer layer consists of highly... | 01/06/2004 |
| 6672369 | Semi-modular rotor module A semi-modular rotor module for an air preheater having a circular rotor includes a lug assembly having a lug front, a lug back spaced radially outward from the lug front, and cold end and hot end lug members. The lug front and lug back each extend longit... | 01/06/2004 |
| 6666262 | Arrangement for cooling a flow-passage wall surrounding a flow passage, having at least one rib feature An arrangement for cooling a flow-passage wall surrounding a flow passage is described, having at least one rib feature which induces flow vortices in a flow medium passing through the flow passage, is attached to that side of the flow-passage wall which ... | 12/23/2003 |
| 6663379 | Catalyzer The invention relates to a catalyzer for burning at least part of a fuel/oxidant mixture flowing through the catalyzer, in particular for a burner of a power plant installation. The catalyzer comprises several catalytically active channels and several cat... | 12/16/2003 |
| 6655911 | Stator vane for an axial flow turbine A stator vane in an axial flow turbine can be fixed to the stator casing by means of force-fit attachment elements. The stator vane root has a hollow profile and includes radially inner platform matched to the contour of the flow channel, a radially outer... | 12/02/2003 |
| 6657330 | Turbo generator with a rotor with direct gas cooling In a turbo generator with a rotor with direct gas cooling, which rotor is provided with a rotor winding arranged around a central rotor body, said rotor winding being on the front sides covered by one each annular cap plate, and in which rotor cold coolin... | 12/02/2003 |
| 6657129 | Method and device for fixing a ceramic component in a metallic support A device for fixing a ceramic component in a metallic support is provided. The device includes a bush, which is produced from gray cast iron with lamellar graphite, arranged at those locations of the ceramic component where the ceramic component is fixed ... | 12/02/2003 |
| 6647602 | Fixation device for blading of a turbo-machine Described is a fixation device for blading of a turbo-machine, in which, longitudinally to a mounting groove (1), a plurality of blades (31, 32) is positioned, and in which, between at least two blades (31, 32) positioned adjacent to each other inside the... | 11/18/2003 |
| 6647624 | Method of fitting an impingement plate A method of fitting an impingement plate to a platform of a guide blade of a gas turbine. The impingement plate is first fastened at individual spots by spot welds to at least one supporting surface of the platform and is then brazed at the supporting sur... | 11/18/2003 |
| 6644920 | Method for providing a curved cooling channel in a gas turbine component as well as coolable blade for a gas turbine component A method of forming a curved cooling channel into a gas turbine component such as a turbine blade uses an electrode in the form of a helix. The electrode is driven to rotate around the central rotational axis of the helix and axially along the central rot... | 11/11/2003 |
| 6640550 | Gas turbo-group with cooling air system A gas turbo set (1, 2, 3) is equipped with at least a cooling air system (20,21). Throttle points (22, 23) are arranged as throttling points in the cooling air flowpath, for the purpose of defining the cooling air mass flow. Said manifolds are bypassed by... | 11/04/2003 |
| 6641360 | Device and method for cooling a platform of a turbine blade Described is a device and a method for cooling a platform of a turbine blade comprising a blade root, a vane with a leading and trailing edge, as well as a blade tip with a platform, through which platform extends radially, at least in part, at least one ... | 11/04/2003 |
| 6640880 | Heat exchanger recessed basket lifting cover A cover for a heat exchange element basket assembly includes a metal sheet and at least one lifting lug. A vertical groove extends inward from the outer surface of the metal sheet. Each lifting lug is a horizontal plate having an opening extending vertica... | 11/04/2003 |
| 6640752 | Boiler and regenerative air preheater arrangement to enhance SO3 capture An air preheater for use with a boiler which discharges a flow of flue gas containing SO3 comprises a housing having oppositely disposed hot and cold ends. The hot end includes an air outlet duct, having a combustion air duct and an excess air ... | 11/04/2003 |
| 6637207 | Gas-storage power plant The present invention relates to a gas-storage power plant, comprising a gas reservoir (8) in which a gas can be stored under pressure, a turbogroup (2) which has at least one turbine (3, 5), a gas-supply line (9) which leads from the gas reservoir (8) to th... | 10/28/2003 |
| 6638055 | Device for burning a gaseous fuel/oxidant mixture A device for burning a gaseous fuel/oxidant mixture, in particular for a power plant installation, includes a catalyzer/swirl generator arrangement. Part of the fuel/oxidant mixture is burned in the catalyzer/swirl generator arrangement and the catalyzer/... | 10/28/2003 |
| 6638012 | Platform arrangement in an axial-throughflow gas turbine with improved cooling of the wall segments and a method for reducing the gap losses The invention relates to an arrangement of guide vane platforms forming the inner contour of the flow channel in an axial-throughflow gas turbine and to a method for reducing the gap losses and for the improved cooling of the wall segments. In order to av... | 10/28/2003 |
| 6634457 | Apparatus for damping acoustic vibrations in a combustor An apparatus for damping acoustic vibrations in a combustor as well as a corresponding combustor arrangement with the apparatus. The apparatus includes a Helmholtz resonator (4) that can be connected via a connecting channel (2) with a combustor (1). The ... | 10/21/2003 |
| 6634859 | Apparatus and process for impingement cooling of a component exposed to heat in a flow power machine An apparatus and a process are provided for impingement cooling of a component exposed to heat in a flow machine. The component includes a wall section on at least one side of which at least one impingement air flow impinges, the air flow passing through ... | 10/21/2003 |
| 6634858 | Gas turbine airfoil An airfoil includes internal cooling air passages arranged in a serpentine manner with one or more radially outward and radially inward extending passages. The passages are in fluid connection through turns of approximately 180°. The turns near the platf... | 10/21/2003 |
| 6625988 | Premix burner arrangement with catalytic combustion and method for its operation A premix burner arrangement with catalytic combustion provides a fuel/air mixture to a combustion chamber of a gas turbine arrangement. The premix burner arrangement includes a premix burner, at least one fuel addition unit, and air inlet openings arrange... | 09/30/2003 |
| 6626637 | Cooling method for turbines In a method for cooling a turbine (1), the supply of the cooling medium is regulated in accordance with the third power of the rotor rotational speed. The method is particularly employed in the period while the rotors run down after the termination of the... | 09/30/2003 |
| 6623790 | Method of adjusting the size of cooling holes of a gas turbine component A method for adjusting the size of cooling holes of a gas turbine component is disclosed in which the component is shielded with an easily removable and non- conductive shielding material without shielding the cooling holes themselves. The cooling holes a... | 09/23/2003 |
| 6623241 | Low-pressure steam turbine A low-pressure turbine is provided with stationary and rotating blades, and the blades have a coating that is hydrophobic or water-repellant and has a smooth surface. The coating preferably contains amorphous carbon. The hydrophobic property of the coatin... | 09/23/2003 |
| 6615905 | Method of making an air preheater rotor A method for constructing a rotor of an air preheater having a plurality of diaphragm plates dividing the rotor into a number of wedge-shaped compartments. Each compartment includes compartment components such as a rotor shell plate, a hot end rotor angle... | 09/09/2003 |
| 6615750 | Sorbent conditioning and direct feed apparatus for a steam generator and a method for retrofitting a steam generator with same A sorbent conditioning and direct feed apparatus is provided for direct feeding of a conditioned solid sorbent to a combustor 12. The sorbent conditioning and direct feed apparatus includes raw solid sorbent storages means 102, particle size reducing mean... | 09/09/2003 |
| 6615588 | Arrangement for using a plate shaped element with through-openings for cooling a component The present invention relates to an arrangement for the cooling of a component, in particular of the combustion chamber of a turbo machine, wherein at least one cooling duct (5) is provided between a wall (1) to be cooled and a plate-shaped element (2) sp... | 09/09/2003 |
| 6615575 | Method and apparatus for regulating the steam temperature of the live steam or reheater steam in a combined-cycle power plant A method for setting or regulating the steam temperature of the live steam and/or reheater steam, in particular under part load, in a combined-cycle power plant and a combined-cycle power plant so regulated. The power-plant has a water/steam cycle includi... | 09/09/2003 |
| 6609905 | Catalytic burner The invention relates to a catalytic burner (1) of a combuster (2), in particular of a power station installation, comprising an annular duct (4) leading to the combuster (2), a catalyzer (5) arranged in the annular duct (4), a primary injection device ... | 08/26/2003 |
| 6602052 | Airfoil tip squealer cooling construction An airfoil for a gas turbine includes a pressure sidewall and a suction sidewall, a tip cap, and a tip squealer. Cooling fluid flows from a hollow space within the airfoil through exit passages extending to the pressure side of the airfoil and to the tip ... | 08/05/2003 |
| 6599121 | Premix burner The subject of the invention is a method as well as an apparatus for suppressing flow vortices within a turbo power machine with a premix burner, into which fuel and air are introduced for mixing, which then leave the burner downstream along its burner ax... | 07/29/2003 |
| 6599083 | Cooling system and method for cooling a turbo-machine housing A cooling system for cooling a housing of a turbo-machine comprising a feeder air line connected to the feeder air connection of the housing, a waste air line connected to the waste air connection of the housing, a recirculating air line, a fan position i... | 07/29/2003 |
| 6598664 | Bypass seal for air preheaters A bypass seal for a rotary regenerative air preheater includes primary and secondary seal leaves that are joined at a single position longitudinally intermediate their first and second sends. The first end portion of the primary seal leaf extends longitud... | 07/29/2003 |
| 6598399 | Integrated power plant and method of operating such an integrated power plant An integrated power plant comprises a gas-turbine set with a compressor, a combustion chamber and a gas turbine, a heat-recover boiler arranged downstream of the gas turbine, and a water/steam circuit with a steam turbine, a condenser, a feedwater tank an... | 07/29/2003 |
| 6596248 | Method for removing carbon dioxide from exhaust gas In a method for removing carbon dioxide from the exhaust gas from a gas turbine plant (11), which exhaust gas is subjected to a downstream heat recovery process (12, 33), preferably in the heat recovery steam generator (33) of a water/steam cycle (12), a ... | 07/22/2003 |
| 6592685 | Transformation controlled nitride precipitation hardening heat treatable steel The invention relates to a transformation controlled nitride precipitation hardening heat-treatable steel with the following composition (data in wt. %): 15-18 Cr, max. 0.5 Mn, 4-10 Ni, max. 15 Co, max. 4 W, max. 4 Mo, 0.5-1 V, at least one of Nb, Ta, Hf ... | 07/15/2003 |
| 6592326 | Connecting stator elements In a guide vane element for a gas turbine with a vane blade extending between a platform that is located radially inward in relation to the main housing of the gas turbine and a radially outward platform, a flange is provided on at least one edge of the p... | 07/15/2003 |
| 6594553 | Process for enhancing the sulfur capture capability of an alkaline earth material The present invention provides, according to one aspect thereof, a computer controlled process for reducing SO2 from a flue gas. The process includes the basic steps of providing an aqueous treatment solution containing an inorganic salt and a ... | 07/15/2003 |
