Fluid reaction surfaces (i.e., impellers) inventions 01/08

20080025839 - Stator vane and gas turbine engine assembly including same: A method for manufacturing a turbine stator vane includes coupling an airfoil to a vane stem, said comprising a first sidewall and a second sidewall, said first and second sidewalls joined at a leading edge and at an axially-spaced trailing edge, and forming an opening at least partially through the... Agent: John S. Beulick (12729) C/o Armstrong Teasdale LLP

20080025840 - Turbomachine with rotors of high specific energy transfer: A turbomachine has at least one rotor blade row designed for extremely high work coefficients (high-load), which—in its center section and/or averaged over the blade height—provides for an essentially swirl-free relative outflow. The respective rotor in its trailing edge area is essentially orientated in meridional direction, with the mean or... Agent: Timothy J. Klima Harbin King & Klima

20080025841 - Rotor blade and method of fabricating same: A method for fabricating a rotor blade is provided. The method includes providing a rotor blade that includes a tip shroud having a portion of increased cross-sectional thickness relative to adjacent portions of the tip shroud. The increased cross-sectional thickness section extends across substantially an entire circumferential width of the... Agent: John S. Beulick (12729) C/o Armstrong Teasdale LLP

20080025842 - Turbine vane with removable platform inserts: Aspects of the invention are related to a turbine vane assembly in which at least one of the platforms is equipped with one or more removable platform inserts. The inserts can be used in those areas of the platform where failures or damage has been known to occur, among other... Agent: Siemens Corporation Intellectual Property Department

20080025843 - Mounting disc: Mounting discs (20, 30, 40, 50) are used in gas turbine engines to present turbine or compressor blades. These discs (20, 30, 40, 50) incorporate a bore or cob end 31, 41, 51 which in turn previously had a flat end face surface. Such flat end face surfaces are weight... Agent: Manelli Denison & Selter

20080025844 - Rotor for a turbo engine: A rotor for a turbo engine is disclosed including a rotor base body and a plurality of rotor blades distributed over the circumference of the rotor base body. The rotor base body is formed by at least one ring-shaped element made of a metal matrix composite material. The rotor blades... Agent: Crowell & Moring LLP Intellectual Property Group

20080025845 - Turbomachine blade: A turbomachine blade comprising a root portion and an aerofoil portion, the aerofoil portion having a leading edge, a trailing edge, a concave metal wall portion extending from the leading edge to the trailing edge and a convex metal wall portion extending from the leading edge to the trailing edge,... Agent: Manelli Denison & Selter

20080025846 - Hollow cmc airfoil with internal stitch: A CMC airfoil (20) formed with CMC stitches (37) interconnected between opposed walls (26, 28) of the airfoil to restrain outward flexing of the walls resulting from pressurized cooling air within the airfoil. The airfoil may be formed of a ceramic fabric infused with a ceramic matrix and dried, and... Agent: Siemens Corporation Intellectual Property Department

20080025848 - Fixing device for fan: A fixing device for fixing a fan to a bracket of a computer case includes a front frame, a latching member, and two lateral frames. The front frame is disposed against the bracket with an outer side, and at least one inserting column is protruded from an inner side of... Agent: Birch Stewart Kolasch & Birch

20080025847 - Ventilation assembly for wind turbine rotor hub: A ventilation assembly for a wind turbine rotor hub is provided, the ventilation assembly comprising a frame fixedly mountable to the rotor hub, the frame including at least one opening, and a cover for said at least one opening, the cover being mounted to said frame to be freely rotatable... Agent: Patrick W. Rasche (22402)

20080019839 - Microcircuit cooling and tip blowing: A turbine engine component has an airfoil portion having a pressure side, a suction side, a leading edge, a trailing edge, and a tip. The component further has a first cooling microcircuit embedded in a pressure side wall, a second cooling microcircuit embedded in a suction side wall, and a... Agent: Bachman & Lapointe, P.C. (p&w)

20080019840 - Serpentine microcircuit vortex turbulatons for blade cooling: A cooling microcircuit for use in a turbine engine component is provided. The cooling microcircuit has at least one leg through which a cooling fluid flows. A plurality of cast vortex generators are positioned within the at least one leg to improve the cooling effectiveness of the cooling microcircuit.... Agent: Bachman & Lapointe, P.C. (p&w)

20080019841 - Integrated platform, tip, and main body microcircuits for turbine blades: A turbine engine component has an airfoil portion with a pressure side and a suction side. The turbine engine component further has a first cooling microcircuit for cooling the suction side of the airfoil portion. The first cooling microcircuit is embedded within a first wall forming the suction side. The... Agent: Bachman & Lapointe, P.C. (p&w)

20080019832 - Turbine/rotorcraft/oar blade: The present invention generally relates to the field of blades that may be rotating, with a design producing maximum drag when encountering air/water flow in one direction, and either minimum drag, in the power generating application, or maximum lift in the rotorcraft application when encountering air/water flow in the opposite... Agent: Michael Ries

20080019833 - Cylindrical wind turbine: This invention is a cylindrical turbine incorporating rotating vanes, unlike the fixed vanes utilized in conventional turbines. The rotational position of each vane is continually adjusted, as the turbine turns, to maximize the turbine's energy extraction from the wind.... Agent: Douglas Claude Martin

20080019834 - Cooling fan for rotating machine: A cooling fan for rotating machine having a sufficient cooling performance, mass production performance and easiness in mounting is provided. A centrifugal fan mounted to a rotating shaft 21 of rotating machine for introducing a cooling air to the rotating machine, is provided with a hub 12 mounted at the... Agent: Jacobson Holman PLLC

20080019835 - Gas turbine blade shroud: A gas turbine blade shroud includes a platform and one or more fins extending toward a stator and side rails that extend radially toward the stator and along the edge of the platform. The increased wall thickness in the side regions of the blade shroud effects an increase in stiffness... Agent: Buchanan, Ingersoll & Rooney PC

20080019836 - Damping arrangement for guide vanes: A damping arrangement for guide vanes, in particular for guide vanes of a gas turbine or an aircraft engine, is disclosed. Referring to this damping arrangement, the radially external ends of the guide vanes of a guide vane grid or a guide vane ring are mounted to a housing. The... Agent: Crowell & Moring LLP Intellectual Property Group

20080019837 - Method for increasing the fatigue life of a blade root of a turbomachine blade: A method for increasing the fatigue life of a blade root of a turbomachine blade, wherein the blade root has at least one slot for back-gripping fixing of the blade root in a shaft component or a casing component of a turbomachine. The method comprises impressing a mechanical stress field... Agent: Darby & Darby P.C.

20080019838 - Blades: A blade (10, FIG. 1) for a gas turbine engine includes an aerofoil portion (12, FIG. 1) and a root portion 14 defined by concave and convex walls 16, 18 having opposing inner surfaces 16a, 18a. A reinforcing member 20 is located between the concave and convex walls 16, 18... Agent: Manelli Denison & Selter

20080014095 - Turbofan engine and method of operating the same: A method for operating a turbofan engine includes providing a first fan disk configured to rotate in a first rotational direction, coupling a first fan blade to the first fan disk, the first fan blade including a dovetail, an airfoil coupled to the dovetail, and a plurality of channels extending... Agent: John S. Beulick (12729) C/o Armstrong Teasdale LLP

20080014086 - Turbo pneumatic cylinder of pneumatic tool: A turbo pneumatic cylinder of a pneumatic tool, including a front turbine, a one-way rotatable inverse turbine and a rear turbine. The front and rear turbines are mounted on the rotary shaft of the pneumatic cylinder. The inverse turbine is one-way rotatably fitted on the rotary shaft between the front... Agent: Troxell Law Office PLLC Suite 1404

20080014087 - Tail rotor for remotely controlled toy helicopter: A tail rotor for a remotely controlled toy helicopter includes a pitch control clevis rotatably mounted on a drive mast and including two side links including a member having an oval tunnel formed at its open end, and a hollow cylinder distal the side links; and a rotor blade assembly... Agent: Troxell Law Office PLLC Suite 1404

20080014088 - Apparatus for assembling rotary machines: A wind turbine generator includes at least one blade and a hub assembly. The hub assembly includes at least one substantially cylindrical wall defining a substantially annular hub cavity. The assembly also includes at least one substantially triangular frame inserted into the hub cavity and is fixedly coupled to the... Agent: Patrick W. Rasche (22402)

20080014090 - Cuffed fan blade modifications: A winglet includes a vertical member and a mounting member. The mounting member is configured to facilitate the mounting of the winglet to the tip of a fan blade. The vertical member is configured to extend perpendicularly relative the tip of a fan blade. A cuff extends from the vertical... Agent: Frost Brown Todd, LLC

20080014089 - Device for utilizing the kinetic energy of flowing water: A device for utilizing the kinetic energy of flowing water with several pressure surfaces rotating around a common rotor axis. The pressure surfaces can be pivoted around axes arranged parallel to and spaced from the rotor axis, in particular for the production of energy from tidal currents of the sea.... Agent: Greenblum & Bernstein, P.L.C

20080014092 - Fan blade modifications: A winglet includes a vertical member and a mounting member. The mounting member is configured to facilitate the mounting of the winglet to the tip of a fan blade. The vertical member is configured to extend perpendicularly relative the tip of a fan blade. Adding winglets to fan blades may... Agent: Frost Brown Todd, LLC

20080014091 - Frequency tailored thickness blade for a turbomachine wheel: A method is provided for determining a blade topology that reduces the effects of vibratory stress on a turbomachine blade having a plurality of discrete locations, wherein each discrete location has a thickness. The method includes the steps of creating a computational model of the blade, using the computational model... Agent: Honeywell International Inc.

20080014093 - Mounting assembly for fan: A mounting assembly includes a chassis having a plurality of opposite receiving tabs thereon, and a plurality of bracket subassemblies slidably mounted to the chassis along the receiving tabs of the chassis. Each bracket subassembly secures a fan therein and includes a bracket having a rear wall and two opposite... Agent: PCe Industry, Inc. Att. Cheng-ju Chiang Jeffrey T. Knapp

20080014094 - 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.... Agent: Nixon & Vanderhye, PC

20080008587 - Cyclical wave energy converter: Systems and methods use cyclical propellers with dynamic blade angle control to extract power from waves. A control system for such implementations can adapt pitching schedules for the blades of the cyclical propellers for efficient energy extraction and/or to control reactive forces. The cyclical propellers may be installed on the... Agent: Patent Law Offices Of David Millers

20080008597 - Wrist mounted paddle grip: A wrist engageable paddling device adapted for engagement over the end of a paddle or oar. The device features a member having a hooked portion extending from a wristband. The hooked portion has a curve adapted for removable engagement over the oar or paddle and is contoured for a comfortable... Agent: Donn K. Harms Patent & Trademark Law Center

20080008599 - Integral main body-tip microcircuits for blades: A turbine engine component, such as a turbine blade, has an airfoil portion having a tip and a root portion and a cooling microcircuit arrangement within the airfoil portion. The cooling microcircuit arrangement comprises a multi-leg main body portion for allowing a flow of coolant to convectively cool the airfoil... Agent: Bachman & Lapointe, P.C. (p&w)

20080008598 - Turbine airfoil cooling system with near wall vortex cooling chambers: A cooling system for a turbine airfoil of a turbine engine having a plurality of vortex cooling chambers positioned in an outer wall defining a suction side of the turbine airfoil. The vortex cooling chambers may extend generally spanwise and be positioned in the outer wall from a position in... Agent: Siemens Corporation Intellectual Preperty Department

20080008586 - Rotor blade of a wind power installation, comprising a warning light: A system and method for evaluating rotor blade stress is provided. One embodiment is a rotor blade; a light waveguide extending along a portion of the rotor blade, the light waveguide having a light receiving end and a light issuing end; a light producing device coupled to the light receiving... Agent: Seed Intellectual Property Law Group PLLC

20080008588 - Systems for distributed energy resources: A new design of vertical axis wind turbine is disclosed based on a dome structure using dome struts as blades that work in concert to produce rotational motion. The stability and low cost of the new design allows the turbine to function in low wind speed regimes as well as... Agent: Paul Hartman

20080008589 - Method and apparatus for balancing gas turbine engines: A method, system, and balanced rotating assembly are provided for field balancing an assembly including a power turbine. The method, system and assembly includes coupling the power turbine to a load, identifying a first balancing plane that is aft of the power turbine, and identifying a second balancing plane that... Agent: John S. Beulick Armstrong Teasdale LLP

20080008590 - Electric fan with bearing system: An electric fan includes a fan base (10) having a center tube (11), a bearing assembly received in the center tube and a rotor assembly (20). The bearing assembly includes a plain bearing (40) and a rolling bearing (50). The rotor assembly includes a fan hub (22) and a pivot... Agent: PCe Industry, Inc. Att. Cheng-ju Chiang Jeffrey T. Knapp

20080008591 - Seal for torque converter lockup clutch: A method and a sealing system for sealing the space between a piston and the hub of a torque converter lockup clutch is provided. According to the method and the sealing system, the seal is pretensioned with its cylindrical surface facing the piston bore. In an embodiment of the invention,... Agent: Davidson, Davidson & Kappel, LLC

20080008592 - Method and apparatus for controlling tonal noise from subsonic axial fans: A method and apparatus for reducing a selected tonal noise generated by an axial flow fan operating in a non-uniform flow by locating at least one obstruction in the non-uniform flow such that the at least one obstruction generates a noise that is out of phase with the selected tonal... Agent: Osler, Hoskin & Harcourt, LLP (u. De Sherbrooke)

20080008593 - Turbine blade self locking seal plate system: A seal plate system (24) for a rotor in a turbine engine. The rotor includes a rotor disc (10) for supporting a plurality of blades (16), and an annular groove (32) provided in the disc (10) adjacent at least one end (30) of the disc (10). A plurality of plate... Agent: Siemens Corporation Intellectual Property Department

20080008594 - Disk wheel of a rotor of a turbomachine: Disk wheel (10) of a rotor of a turbomachine of the type equipped with a series of blades (12) integral with a central annular portion (14) which is fitted on a shaft (20) of the turbomachine, the disk wheel comprises at least a first insertable portion (18) of the female... Agent: General Electric Co. Global Patent Operation

20080008595 - Compressor wheel: Compressor wheel (16) and techniques for manufacturing such a wheel are provided. The wheel may include a hub (21) with a counterbore (36) internally treated to impart residual compressive stresses, for enhanced endurance to stress-induced fatigue. The surface treatment allows extending the counterbore relatively closer to a plane (30) of... Agent: John H. Allie Krieg Devault, LLP

20080008596 - Fan blades: A fan blade comprises an airfoil having an upper surface with region that has a generally elliptical curvature. In some examples, the lower surface has a convex region and a concave region. The curvature of the concave region corresponds with the generally elliptical curvature of the upper surface; while the... Agent: Frost Brown Todd, LLC