Did You Know...
...that when IBM conducted a market study of Chester Carlson's invention in 1959, the company concluded that it would take only 5000 units of his new product to saturate the market? IBM therefore declined to be part of the new product introduction. Too bad for IBM. Carlson's invention was the xerography process, and his new product was the beginning of the Xerox Corporation. It is estimated that every day, worldwide, 3,000,000,000 copies are made!!
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| Number | Title | Issue Date |
| 8007229 | Variable area turbine vane arrangement A ring vane nozzle for a gas turbine engine according to an exemplary aspect of the present disclosure includes a multiple of fixed turbine vanes between an inner vane ring and an outer vane ring and a multiple of rotational turbine vanes between the inner vane ring... | 08/30/2011 |
| 7850422 | Device for adjusting guide blades A device is for adjusting guide blades of a gas turbine. The guide blades are each connected to an adjusting ring via an adjusting lever, so as to be able to swivel, a first end of the, or each, adjusting lever engaging with the adjusting ring, and a second end of t... | 12/14/2010 |
| 7828518 | Securing arrangement A securing arrangement 32 for securing an actuating lever 20 to a spindle 14, for example a spindle 14 of a variable inlet guide vane 10 in a gas turbine engine, comprises a fastening formation 38 rotatably co-operable, in u... | 11/09/2010 |
| 7661925 | Variable-setting stator blade guidance device in an axial turbomachine A variable-setting stator blade guidance device of an axial turbomachine is provided. The blade includes an airfoil, a platform and a pivot mounted in the casing of the turbomachine. The device includes a bearing integrated into the platform. In particular, the devi... | 02/16/2010 |
| 7614846 | Ceramic-based bushing for a variable-pitch vane system in a turbomachine The invention relates to a ceramic-based bushing for mounting in a turbomachine casing to provide a smooth bearing for a pivot of a variable-pitch vane. The bushing is constituted by a metal jacket and a ceramic ring secured to the inside wall of said jacket by braz... | 11/10/2009 |
| 7594794 | Leaned high pressure compressor inlet guide vane A variable geometry inlet guide vane assembly that reduces stress placed on downstream compressor blades in gas turbine engines. The invention circumferential leans upstream guide vanes, pushing engine core air flow radially. This allows for aerodynamic stresses on ... | 09/29/2009 |
| 7549839 | Variable geometry inlet guide vane An inlet guide vane provides improved, smooth airflow and avoids separation of flow even at high incidence angles. The inlet guide vane includes a strut having opposite side surfaces that are continuously curved to provide a controlled velocity distribution at the t... | 06/23/2009 |
| 7491030 | Magnetically actuated guide vane A variable inlet guide vane assembly in a turbomachine in which the vanes can vary in angle to control the flow through into the turbomachine, each guide vane having a leading edge portion and a trailing edge portion, and where the entire vane can pivot or the trail... | 02/17/2009 |
| 7438521 | Hydraulic turbine and stay ring A stay ring of a hydraulic turbine has: a ring-shaped upper wall, a ring-shaped lower wall arranged below the upper wall forming a ring-shaped flow channel between the upper wall and the lower wall; and stay vanes arranged in array with spaces in a peripheral direct... | 10/21/2008 |
| 7316539 | Vane assembly with metal trailing edge segment Embodiments of the invention relate to a vane assembly formed by a forward airfoil segment and an aft airfoil segment. The aft segment is made of metal and can define the trailing edge of the vane assembly. The forward segment can be made of ceramic, CMC or metal. T... | 01/08/2008 |
| 7305826 | Axial loading management in turbomachinery Exemplary vanes for a turbocharger having variable nozzle geometries are disclosed. In one aspect, each of the vanes includes two axial surfaces that are on opposite sides of the vane. The opposite axial surfaces include two corresponding chambers. These chambers ar... | 12/11/2007 |
| 7303370 | Fluid flow engine and method of producing a guiding grid A fluid flow engine comprises: a turbine housing including at least one supply channel for supplying a driving fluid; at least one turbine rotor rotatably supported in the turbine housing about an axis of rotation; and a guiding grid of variable turbine geometry rad... | 12/04/2007 |
| 7255530 | Vane and throat shaping An exemplary vane for a radial turbine assembly includes a hub end and a shroud end that define vane height, a leading edge and a trailing edge that define vane length along a camberline and an inner surface and an outer surface that extend from the hub end to the s... | 08/14/2007 |
| 7234914 | Apparatus and method for enhancing lift produced by an airfoil A compressor or pump employs principles of unsteady delayed stall to enhance the head increase produced by the compressor or pump. Plural airfoil-shaped lifting elements are spaced from each other in a cascade and the fluid is directed into the cascade by a device t... | 06/26/2007 |
| 7207176 | Method of controlling the exhaust gas temperature for after-treatment systems on a diesel engine using a variable geometry turbine A method for controlling a variable geometry turbine of a turbocharger to increase the temperature of the exhaust gas delivered to an after-treatment system. In one form the method includes reducing a fluid flow area to the turbine below a normal size and bypassing ... | 04/24/2007 |
| 7185626 | Fuel vaporization system A system and devices to actively induce turbulent flow in the intake tract of an internal combustion engine. At least certain of the devices include moving components which induce a swirling or rotating movement about a major intake axis. The adjustment to the flow ... | 03/06/2007 |
| 7185853 | Air discharge valve for an aircraft An air discharge valve for an aircraft has an inner valve flap (1) and an outer valve flap (3) which partially overlap each other to form a nozzle of the Laval type with a nozzle inlet (6) converging toward a nozzle neck (S) and with a nozzle ou... | 03/06/2007 |
| 7150431 | Electrical generator fluid-flow-coolant filtration A ventilating and particle-filtering airflow system, and related methodology, for managing the flow of air to the brush region of an on-board aircraft (vehicle) electrical generator. Conduit structure collects intaken air during aircraft (vehicle) engine operation, ... | 12/19/2006 |
| 7118322 | Device for injecting cooling air into a turbine rotor A device for injecting cooling air into a turbo-machine turbine rotor includes a plurality of injectors distributed regularly around a longitudinal axis of the turbomachine and mounted between an inner shroud and an outer shroud. Each injector has a bimetallic struc... | 10/10/2006 |
| 7114918 | Fish friendly hydraulic turbine distributor A hydraulic turbine has a distributor located between the scroll of the turbine and its runner. The distributor has upper and lower stay ring portions with stay vanes extending therebetween. A plurality of movable wicket gates control flow of liquid through the dist... | 10/03/2006 |
| 7104754 | Variable vane arrangement for a turbomachine A vane arrangement for a compressor of a gas turbine engine comprises a plurality of circumferentially arranged vanes, a plurality of levers and a control ring. Each vane comprises a fixed upstream portion secured to a casing and a movable downstream portion pivotal... | 09/12/2006 |
| 7097411 | Turbomachine compressor scroll with load-carrying inlet vanes A compressor scroll housing for use in conjunction with turbo-machinery, particularly applicable in aircraft. The scroll housing can include a plurality of scroll vanes arrayed around the scroll housing. Scroll vanes, integrally formed with the scroll housing, carry... | 08/29/2006 |
| 7066715 | Turbine efficiency tailoring A turbomachinery apparatus. A turbine is provided with a retainer having a bore step element for turbine wheel retention, and with an aperture manifesting a tailored diameter less than the trim diameter of the turbine, thereby to permit customization of the turbine ... | 06/27/2006 |
| 7037070 | Variable pitch device for two blade stages fixed onto a turbojet The pitch control mechanism (controlling the angular position) for stator blades in a turbojet may be adjusted separately for two adjacent stages of blades controlled by a common actuator 10. To achieve this, the synchronization bar 9 located between t... | 05/02/2006 |
| 7025564 | Devices and methods for reducing or eliminating the gap between a stay vane and its corresponding wicket gate as used in turbines An improved design for turbines increases efficiency while reducing potential for fish kill. In an embodiment of the present invention as relates to Kaplan turbines, the gap between stay vanes and their corresponding wicket gates is reduced or eliminated by provisio... | 04/11/2006 |
| 6948907 | Vane and/or blade for noise control Exemplary turbine blade outer edges, exemplary vane inner edges, exemplary systems and exemplary methods are disclosed that help to reduce noise in variable geometry turbines and optionally other turbines wherein a turbine blade interacts with an object. Other exemp... | 09/27/2005 |
| 6932565 | Turbine A turbine comprises a turbine wheel having radial blades and supported in a housing for rotation about an axis. An annular inlet passageway extends radially inwards towards the turbine wheel, the inlet passageway being defined between first and second facing annular... | 08/23/2005 |
| 6926494 | Hydraulic turbine with increased power capacities A hydraulic turbine with increased power capacities for new or existing hydroelectric installations. The turbine has a larger axial runner wheel and a reshaped runner ring peripherally extending around the runner wheel. A draft tube with a larger elbow section exten... | 08/09/2005 |
| 6918744 | Hydraulic turbine and exit stay apparatus therefor The invention is an Exit Stay Apparatus for Francis and propeller hydraulic turbines. The purpose of the invention is to eliminate the loss of turbine efficiency and strong pulsations in draft tube caused by the axial circular vortex in all turbine operating regimes... | 07/19/2005 |
| 6910855 | Rotary apparatus for a gas turbine engine Rotary apparatus (17) for a gas turbine engine (10) comprises a rotor assembly (63) and first and second stator assemblies (55, 59) mounted coaxially with respect to each other. Each vane (58, 62) has a leading edge and a trailing ... | 06/28/2005 |
| 6619916 | Methods and apparatus for varying gas turbine engine inlet air flow A method for assembling an articulated fan front frame for a gas turbine engine facilitates improving engine performance. The method includes forming a strut including a pair of sidewalls connected at a leading edge and a trailing edge, forming a flap inc... | 09/16/2003 |
| 6607353 | Centrifugal compressor The centrifugal compressor of the present invention is equipped with a plurality of vane groups (A, B) comprised of a plurality of vanes (16A, 16B) disposed in the peripheral direction of an impeller (12) so as to be concentric about the center of an axis... | 08/19/2003 |
| 6435821 | Variable vane for use in turbo machines A vane having a trunnion portion and an airfoil portion is provided with a stress reducing undercut on the trunnion portion proximate to the transition zone defined between the trunnion portion and the airfoil portion of the vane.... | 08/20/2002 |
| 6334757 | Water turbine A water turbine comprises a runner, guide vanes formed of a plurality of vanes arranged outside the runner in a peripheral direction, each of the vanes being rotatable about a center axis thereof parallel with a rotation shaft of the runner, stay vanes fo... | 01/01/2002 |
| 6270309 | Low drag ducted Ram air turbine generator and cooling system A low drag ducted ram air turbine generator and cooling system is provided. The ducted ram air turbine generator and cooling system has reduced drag while extracting dynamic energy from the air stream during the complete range of intended flight operating... | 08/07/2001 |
| 6179559 | Variable camber vane A variable camber vane for the inlet of a gas turbine engine has a pivoting trailing section behind a fixed leading section. In order to accommodate a wide range of flow conditions the trailing section is movable through a wide angle about its upstream ed... | 01/30/2001 |
| 6050775 | Radial-flow exhaust-gas turbocharger turbine A radial-flow exhaust-gas turbocharger turbine is provided with a row of adjustable guide blades which are rotatable via adjusting shafts mounted in a casing. The guide blades are each provided with sealing discs on their longitudinal sides running at rig... | 04/18/2000 |
| 6045325 | Apparatus for minimizing inlet airflow turbulence in a gas turbine engine A seal, and method of using same, for an inlet guide vane in a gas turbine engine includes a longitudinally extending tubular portion that has a longitudinal axis defined therethrough, a dovetail portion including a rib portion and a retaining feature. Th... | 04/04/2000 |
| 6007297 | Blade for Kaplan turbine A blade for a Kaplan turbine has substantially linear touching lines for contacting, in the closed position of the guide blade array, adjacent guide blades, the contact lines being linear or curved and running generally parallel to the pivot axis of the b... | 12/28/1999 |
| 5931636 | Variable area turbine nozzle A variable area turbine nozzle includes a plurality of circumferentially adjoining nozzle segments. Each nozzle segment includes outer and inner bands, with a plurality of first vane segments fixedly joined therebetween. A plurality of second vane segment... | 08/03/1999 |
