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| Number | Title | Issue Date |
| 8142142 | Turbine transition duct apparatus A gas turbine transition duct apparatus is provided comprising first and second turbine transition ducts and a strip seal. The strip seal may comprise a sealing element and a spring structure. ... | 03/27/2012 |
| 8075257 | Fan assembly A fan assembly for use in an electronic device is provided. The fan assembly includes a housing, a fan, a throttle valve, and a regulator. The housing has an outlet. The fan is disposed in the housing and adapted to provide an air current. The air current generates ... | 12/13/2011 |
| 7798772 | Centrifugal pump intake channel A centrifugal pump with a housing having one or more impellers having an axial or semiaxial, open or closed design disposed therein and an intake channel mounted upstream of the first impeller. A plurality of grooves that are distributed around the circumference and... | 09/21/2010 |
| 7713023 | Steam turbine nozzle box and methods of fabricating A method of fabricating a steam turbine nozzle box is provided, wherein the method includes forming an annular chamber defined by a radially outer wall and a radially inner wall and coupling a plurality of inlets in flow communication with the annular chamber such t... | 05/11/2010 |
| 7431558 | Air intake An air intake with at least one inlet port area and one outlet port area, in which there is arranged at least one structure which may be flowed through and around, comprises an opening and modifies the clear cross-section only slightly, in particular serving as a fr... | 10/07/2008 |
| 7331754 | Optimized nozzle box steam path Disclosed herein is a nozzle box assembly including a torus, a steam path ring, and a bridge ring. The torus has a plurality of steam inlets and an annular steam outlet. The steam path ring has an annular steam inlet, the annular steam inlet has an inner diameter (I... | 02/19/2008 |
| 7331752 | Method of conversion of continuous medium flow energy and device for conversion of continuous medium flow energy A device and method for conversion of the energy of medium flows are provided. The proposed device and method ensure suppression of the vortex streams in the flow on the leg of its motion along the radially converging trajectories and concentration of the flow energ... | 02/19/2008 |
| 7311493 | Metal sheet, including means for fixing it to a support and a gasket seal The metal sheet of the invention includes means for fixing it to a support and a seal gasket laid out along these means. The fixing means comprise at least one lumen provided on the metal sheet by punching, with a cavity for receiving a head of a fixing component co... | 12/25/2007 |
| 7121788 | Exhaust gas turbocharger for an internal combustion engine An exhaust gas turbocharger for an internal combustion engine comprises a turbine in the exhaust line and a compressor, which is driven by the turbine and which is located inside the intake tract of the internal combustion engine. The turbine comprises a flow duct h... | 10/17/2006 |
| 7094024 | Performance and durability improvement in compressor structure design An integral assembly that may improve control over thermal and mechanical behaviors of assembly structures during various transient operation conditions is disclosed. The integral assembly comprises a continuous ring disposed coaxial with, and orthogonal to a centra... | 08/22/2006 |
| 7076951 | Discrete step rotary actuator A discrete step rotary actuator (1) comprises a stator (2), a rotor (3) and at least an actuating element (10) made with a shape memory active material, the actuating element (10) having a first portion (11) anchored to said... | 07/18/2006 |
| 7018166 | Ducted wind turbine The performance of a turbine in a duct having a convergent and a divergent surface is enhanced by controlling the fluid flow pattern along the inner duct surface. For this purpose a free rotor redistributes part of the inner fluid stream through a ring into the oute... | 03/28/2006 |
| 6994518 | Pre-whirl generator for radial compressor A pre-whirl generating apparatus (26) is provided that employs deformable air deflecting vanes (46) adjacent the inlet (18) of a radial air compressor (12-22), which vanes (46) can be mechanically deformed to generate positi... | 02/07/2006 |
| 6921330 | Front chaffer and cleaning fan A cleaning shoe of an agricultural combine is provided with a front chaffer located upstream from the main chaffer. The front chaffer has a closed upstream portion and an open downstream portion. The closed upstream portion is upwardly inclined and the open downstre... | 07/26/2005 |
| 6884021 | Single cascade multistage turbine This invention provides a single cascade multistage turbine that has a compact turbine structure having only a single cascade, and enables power to be extracted efficiently in the same way as a multistage turbine having multistage rotor vanes. The working fluid supp... | 04/26/2005 |
| 6877968 | Low head water turbine A low head water turbine comprising a runner having a cylindrical outer surface and a plurality of similar blades similarly pivotably secured along their inner sides to the outer surface of the runner so as to pivot in the direction of rotation of the runner between... | 04/12/2005 |
| 6837678 | Molten metal pump impeller An impeller for a molten metal pump includes a base and a plurality of vanes having openings for flow of molten metal there through during pumping. Alternatively, or in combination with the vane openings, a single drain opening extending through the base of the impe... | 01/04/2005 |
| 6746207 | Turboprop aircraft engine A turboprop aircraft engine includes at least one outer air intake 1 and at least one downstream inner duct system 2 for the delivery of air to a compressor, and the inner duct system 2 spirals around the center axis 3 of the engine. ... | 06/08/2004 |
| 6609881 | Steam turbine inlet and methods of retrofitting A pair of steam turbine inlet ports are disposed at opposite sides of a steam turbine housing for flowing steam in opposite circumferential directions in a generally annular steam chamber to first stages of a turbine through axially opposite outlets. Port... | 08/26/2003 |
| 6595741 | Pre-swirl nozzle carrier A pre-swirl nozzle carrier for an aircraft gas turbine with a body (1) is provided with a fitted seat (2) for the location of the pre-swirl nozzle carrier on a main carrier (3) and which features several pre-swirl nozzles (4), characterized in that the bo... | 07/22/2003 |
| 6511286 | Centrifugal blower and portable power working machine A centrifugal blower comprises an impeller; and a casing, having an intake port disposed at a region opposing the air inlet portion of impeller, for accommodating the impeller. The casing is provided with a port cover constituted by rod-shaped members whi... | 01/28/2003 |
| 6503052 | Integrated regulating bleed device for a steam turbine An integrated bleed regulator system adapted to be fitted to a steam turbine, the system including a fixed part resembling a diaphragm and has a downstream part including distributor blades between an inner ring and an outer ring. A moving part is provide... | 01/07/2003 |
| 6446457 | Fan and tunnel with fans A intended in particular for equipping a tunnel for refrigeration of products such as food products, wherein this tunnel has a gaseous current flowing through it. The fan includes at least one pair of funnels (1) fixed onto one face of a support (2) mount... | 09/10/2002 |
| 6386829 | Multi-valve arc inlet for steam turbine A steam turbine has multiple valves for introducing steam into a steam turbine. Each of the input valves introduce steam flow around the entire the 360 degree arc. The set of nozzles are each divided into a plurality of chambers. Each set of chambers exte... | 05/14/2002 |
| 6322321 | Nozzle chamber warming-up structure for a steam turbine A nozzle chamber warming-up structure comprises a ring mounted about a rotor of the turbine and defines an annular space surrounding the rotor. The annular spaced is divided by dividing walls into a plurality of steam chambers distributed circumferentiall... | 11/27/2001 |
| 6109868 | Reduced-length high flow interstage air extraction A high flow interstage air extraction system for a gas turbine engine includes a 360 degree annular slot formed in a compressor stator casing by a first wall and a second wall. A plurality of baffle plates extend from the second wall to eliminate circumfe... | 08/29/2000 |
| 6099248 | Output stage for an axial-flow turbine An output stage of an axial-turbine having a high channel divergence has a row of curved vanes and a row of narrowed twisted blades. The curved vanes include, in an axial direction, a positive sweep at their rotor-side end, head and a negative sweep at th... | 08/08/2000 |
| 6082961 | Platform cooling for gas turbines Platform cooling having a guide-blade platform (30; 60) which is subjected to a hot-gas stream (20) and is separated by a gap (36; 66) from a combustion-chamber segment (40; 70) arranged upstream, one or more segment cooling bores (42; 72) being made in t... | 07/04/2000 |
| 6056506 | Pump assembly for jetted tub A pump casing comprises an inlet conduit, a volute and a flow directing chamber. The inlet conduit has a first interior cross-sectional area. The volute has a hollow interior adapted to house a pump impeller. The flow directing chamber is positioned inter... | 05/02/2000 |
| 6030286 | Centrifugal blower having a plurality of sub blades In a centrifugal blower in which the outer periphery of an intake opening is arranged outside of the inner edge of a main blade, a large number of sub blades are provided in the intake opening at a location corresponding to the main blade. The sub blades ... | 02/29/2000 |
| 5749702 | Fan for air handling system A fan unit for a building's air handling system comprising a support structure including a front wall with an air inlet opening formed therein and a bladed fan wheel rotatably mounted on the support structure about its central axis and having an axial air... | 05/12/1998 |
| 5676801 | Radial inflow compressor for large volumetric flows A radial-inflow large volume-rate low pressure-differential, single-stage compressor comprising 2 periphiral concentric sets of axial blades spaced circumferentially between two supporting rings and further strengthened against bending by intermediate rin... | 10/14/1997 |
| 5513951 | Blower device The present invention relates to a fan having a plurality of equiangularly spaced, radially extending blades. The spacing provided between adjacent blades is substantially constant along the entire radial length of the blade for increasing a blowing effic... | 05/07/1996 |
| 5397216 | Flow divider for radial-axial inlet housings In a radial-axial inlet housing of rotating thermal machines, a flow divider is disposed in the turbine or compressor inlet, in front of the inlet and opposite the first turbine guide vane row or the compressor ribs. The flow divider in this case is dispo... | 03/14/1995 |
| 5230603 | Control of flow instabilities in turbomachines To control unsteady motion phenomena in turbomachines, it has been proposed to employ an active control system to modify the flow conditions. In the present invention, the modification is effected by devices mounted in a bullet or nose bullet at the entry... | 07/27/1993 |
| 5197855 | Engine exhaust/blade interaction noise suppression Noise is reduced on an aircraft engine of the type having aft mounted propeller blades 10 which pass through exhaust gas streams 20 expelled from circumferentially spaced nozzles 14. The nozzles 14 are rotated, or the exhaust flow deflected, such that the... | 03/30/1993 |
| 4936803 | Propeller assembly A boat or ship's propeller system utilizes a rotary propeller comprised of a plurality of short blade elements arranged annularly and supported from a central propeller shaft by spokes, there being an annular "funnel" with the large end forward which scoo... | 06/26/1990 |
| 4859143 | Stiffening ring for a stator assembly of an axial flow rotary machine A stator assembly for a gas turbine engine having a support structure and a stiffening ring 46 extending about the support structure 34 is disclosed. Various construction details which increase the rigidity of the support structure and enable the stiffeni... | 08/22/1989 |
| 4799857 | Casing for fluid flow machines A fluid flow machine, particularly a centrifugal pump, wherein the casing has a tubular first portion serving to convey a stream of fluid radially toward a pump shaft which drives one or more impellers. The casing has a second portion with an arcuate band... | 01/24/1989 |
| 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 |
