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| Number | Title | Issue Date |
| 7665964 | Turbine A gas turbine engine turbine comprises an annular array of nozzle guide vanes and an annular array of turbine blades mounted within its annular casing. An array of radially extending protrusions are positioned axially upstream of said array of said nozzle guide vane... | 02/23/2010 |
| 7207773 | Steam turbine nozzle box A nozzle box includes a torus, bridge ring and nozzle ring portions wherein steam flowing generally circumferentially in the torus portion is redirected for flow generally axially by the bridge ring portion. The steam exiting the bridge ring portion flows into nozzl... | 04/24/2007 |
| 7118331 | Stator vane assembly for a turbomachine A stator vane assembly for a turbomachine comprising a plurality of circumferentially arranged stator vanes (32), the axial position of the stator vanes (32) and/or the pitch angle circumferentially between adjacent stator vanes (32) is varied c... | 10/10/2006 |
| 7097420 | Methods and apparatus for assembling gas turbine engines A method of assembling a gas turbine engine includes providing a plurality of stator vane sectors that each include an equal number of stator vanes that are circumferentially-spaced such that a first circumferential spacing is defined between each pair of adjacent s... | 08/29/2006 |
| 7094027 | Row of long and short chord length and high and low temperature capability turbine airfoils A gas turbine engine turbine stage has an annular row of turbine airfoils including a first plurality of first airfoils having a first chord length and a second plurality of second airfoils having a second chord length shorter than the first chord length. At least o... | 08/22/2006 |
| 7056084 | Steam turbine A steam turbine that can effectively operate with the steam at the higher temperatures, while maintaining the strength of turbine constituent components despite the high steam temperature of the steam is provided. The steam turbine includes a casing, a rotor, a plur... | 06/06/2006 |
| 7048509 | Axial flow turbine In the axial turbine according to the present invention, a nozzle blade 1 and/or a movable blade 5 has a profile in which a throat-pitch ratio âs/tâ is maximized at a blade-central portion in height, wherein âsâ being a shortest distance betwee... | 05/23/2006 |
| 7011495 | Fluid flow machine (turbomachine) with increased rotor-stator ratio A fluid-flow machine (turbomachine) includes at least one rotor equipped with blades and at least one stator equipped with vanes, the rotor being supported in a casing by means of a rotating shaft. A form of annulus is provided whose cross-sectional area in a stage ... | 03/14/2006 |
| 6940719 | Fan device A fan device a frame includes a frame and a fan blade part. The fan blade part is composed of a fan hub and fan blades. The frame is provided with a driving part being rotationally attached to the fan blade part. The driving part is fixed to the frame with locating ... | 09/06/2005 |
| 6905303 | Methods and apparatus for assembling gas turbine engines A method of assembling a gas turbine engine includes coupling an inner engine casing to an outer engine casing such that an annular flow path is defined therebetween, coupling a plurality of circumferentially-spaced support struts between the inner and outer casings... | 06/14/2005 |
| 6540478 | Blade row arrangement for turbo-engines and method of making same A blade row arrangement for turbo-engines has an axial construction with two guide blade rows fixedly positioned relative to one another and having a different number of blades while the blade pitch is constant in each case, and having a moving blade row ... | 04/01/2003 |
| 6511285 | Tandem guide vanes Two stages of relatively rotatable guide vanes (22,24) are arranged in tandem. Shroud portions (42,46) on the vanes overlap in loose engagement, until an associated gas turbine engine starts operating. Gas loads then act on the downstream vane stage (24) ... | 01/28/2003 |
| 6439838 | Periodic stator airfoils A stator includes a row of airfoils extending inwardly from a casing. The airfoils are spaced apart circumferentially from each other at a spacing varying in turn around the perimeter of the casing for reducing vibratory excitation of a downstream rotor s... | 08/27/2002 |
| 6402458 | Clock turbine airfoil cooling A turbine includes three rows of airfoils which receive in sequence hot combustion gases during operation. The third row airfoils are clocked circumferentially relative to the first row airfoils for bathing the third row airfoils with relatively cool wake... | 06/11/2002 |
| 5984631 | Tandem turbine-blade cascade A tandem turbine-blade cascade for a turbine, turbo-engine or power engine includes at least two rows of blades disposed substantially directly in line with one another in the rotor or stator. The second row of blades has a larger number of blades than th... | 11/16/1999 |
| 5486091 | Gas turbine airfoil clocking The first stage of vanes (16) and second stage of vanes (24) each contain the same number of vanes. The second stage vanes are located such that the wake flow (38) from the first stage vanes falls on or near the leading edge, after passing through the sta... | 01/23/1996 |
| 5470200 | Guide vanes for axial fans A guide vane arrangement for axial fans, intended to translate the rotational component of the gas flow velocity after passage through the impeller (1) into a substantially axial velocity, including a ring (2) of guide vanes disposed downstream of the fan... | 11/28/1995 |
| 5358373 | High performance turbomolecular vacuum pumps Turbomolecular vacuum pumps having structures which provide increased pumping speed, increased discharge pressure and decreased operating power in comparison with prior art turbomolecular vacuum pumps. In a first embodiment, the stators of one or more axi... | 10/25/1994 |
| 5222863 | Turbine multisection hydrojet drive A hydrojet turbine drive 10 is described with a first turbine assembly 40 including a first compressor rotor 46 with blades 48 having a water pitch for drawing water into the turbine drive 10. The water is driven against the walls of a housing 18 and into... | 06/29/1993 |
| 5110256 | Methods and apparatus for attaching a flow guide to a steam turbine for retrofit of longer rotational blades Improved methods and apparatus for retrofitting longer last row rotational blade assemblies in steam turbines are disclosed. The apparatus of the present invention permits the exhaust flow guide to be mounted directly to modified last row stationary turbi... | 05/05/1992 |
| 4780057 | Partial arc steam turbine An improved partial arc admission system for a high pressure steam turbine, the system having a plurality of nozzle blade groups the blade aspect ratio of blades in each group vary according to the maximum pressure drop across each nozzle blade group.... | 10/25/1988 |
| 4365929 | Vertical wind turbine power generating tower The tower comprises a base supported on a framework which mounts a wind powered turbine having a vertical axis of rotation. Air is channeled to the turbine rotor to cause counterclockwise rotation thereof by upper and lower wind deflectors. The wind defle... | 12/28/1982 |
| 4254843 | Electrically powered vehicle An electrically powered vehicle having a bank of batteries supplying electricity to an electric motor driving wheels of the vehicle includes a whirl ventilator system, a clutch system and an automatically operated, engine-generator unit for recharging the... | 03/10/1981 |
| 3953148 | Configuration of the last moving blade row of a multi-stage turbine A multi-stage axial-flow turbine structure where in order to reduce the energy content of the gaseous working medium leaving the last moving blade row in comparison to the available heat drop, the flow discharge cross-section area from the last moving row... | 04/27/1976 |
| 3937592 | Multi-stage axial flow compressor A multi-stage axial flow turbine and blast furnace compressor blower comprises a blower having a degree of reaction of 100% and which includes a rotatable shaft having a plurality of rings with blades defining moving blade rows arranged in spaced location... | 02/10/1976 |
