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| Number | Title | Issue Date |
| 8047796 | Dovetail attachment for use with turbine assemblies and methods of assembling turbine assemblies A method of assembling a steam turbine including a rotor assembly is provided. The method includes providing at least one turbine bucket including a dovetail that includes a plurality of crush surfaces, a plurality of non-contact surfaces, and at least one neck defi... | 11/01/2011 |
| 8038403 | Turbomachine rotor wheel A turbomachine rotor wheel includes a disk carrying blades having roots engaged and held in an annular recess of the disk. The roots are connected to platforms for co-operating with an annular gasket mounted in an annular groove of the disk. The annular sealing gask... | 10/18/2011 |
| 7959410 | Assembly for an aircraft engine compressor comprising blades with hammer attachment with inclined root A disk/blade assembly for an aircraft engine compressor is disclosed. The assembly includes a disk and a plurality of blades with hammer attachment. Each blade includes a blade root provided with an upstream bearing surface situated on a leading edge side of the air... | 06/14/2011 |
| 7513747 | Rotor for a compressor A rotor (20) for a compressor, in particular in a gas turbine, has a number of rotor blades (25) which are arranged around the rotation axis of the rotor (20) in the form of a rim and are each held in a circumferential recess (21) on the ... | 04/07/2009 |
| 7435055 | Locking spacer assembly for a turbine engine A locking spacer assembly for filling a void between adjacent components in a turbine engine. In at least one embodiment, the locking spacer assembly may be configured to be inserted between adjacent turbine blades in a disc groove in a turbine blade stage assembly.... | 10/14/2008 |
| 7435054 | System and method for mechanical mounting of a device onto a shaft A mechanical mount axially and radially secures a device, such as a fan, to a shaft of a motor without a need for setscrews or keyways. Elimination of a keyway and setscrew for securing a fan to a motor shaft minimizes stress that the fan is subjected to during its ... | 10/14/2008 |
| 7419360 | Rotor disk for a turbomachine A rotor disk for a turbomachine, the disk carrying blades whose roots are retained in a peripheral groove of the disk, the groove including a window for inserting blade roots and a locking member that is a single elastically deformable piece and dimensioned to be re... | 09/02/2008 |
| 7410345 | Turbine nozzle retention key A retaining key for a turbine nozzle includes a key body having top and bottom surfaces, a pair of sides and a pair of ends including a forward end having a pair of horizontal shoulders on opposite sides of a center rib, the shoulders located substantially midway be... | 08/12/2008 |
| 7399164 | Turbine engine and bladed rotor for a compression stage of a turbine engine A turbine engine and a rotor for a turbine engine are provided. Several adjacent turbine blades are positioned in the circumferential direction of the rotor, each turbine blade having a blade root, each turbine being fixed in a retainer groove, running in the circum... | 07/15/2008 |
| 7367778 | Rotor end piece A rotor end piece (1) for a rotor (6) of a thermal turbomachine, having at least one circumferential slot (3) in which moving blades and intermediate pieces are provided, includes a residual gap (15) formed between an end blade (2)... | 05/06/2008 |
| 7344359 | Methods and systems for assembling shrouded turbine bucket and tangential entry dovetail Rhombic shrouded tangential entry buckets are circumferentially applied to the rotor wheel rim of a turbine. A fixture is releasably secured to a lug on each bucket and includes a chamfered surface for engaging a complementary surface on the lug. Upon applying a tan... | 03/18/2008 |
| 7338258 | Axially separate rotor end piece A rotor end piece (1) for a rotor of a thermal turbomachine, having at least one circumferential slot (3) in which press blades, intermediate pieces and two end blades (4), between which a residual gap is formed, are fitted, the rotor end piece ... | 03/04/2008 |
| 7329086 | Rotor shaft, in particular for a gas turbine A rotor shaft, particularly for a gas turbine, includes a cooling air supply disposed inside the rotor shaft and a plurality of cooling air ducts connected to the cooling air supply and extending essentially radially outward toward an outside of the shaft, wherein e... | 02/12/2008 |
| 7326035 | Device for attaching a moving blade to a turbine rotor disk in a turbomachine An attachment device for attaching a blade to a turbine rotor disk in a turbomachine, the blade root forming a male portion engaged and held radially in a cavity of complementary shape in the rotor disk, with means for preventing the blade root from moving axially i... | 02/05/2008 |
| 7309214 | Rotor end piece A rotor end piece for a rotor of a thermal turbomachine having a circumferential slot includes two end piece halves having side faces opposite one another in the installed state and top surfaces adjoining one another, the side faces of the end piece halves being con... | 12/18/2007 |
| 7284959 | Apparatus and method for securing a rotor blade in a rotor of a turbine-type machine A rotor of a turbine-type machine, in particular a gas turbine rotor, is disclosed. The rotor has a rotor base body, where the rotor base body has a groove extending in the circumferential direction of the rotor base body, and has multiple rotor blades or rotor blad... | 10/23/2007 |
| 7270517 | Turbine blade with vibration damper A blade assembly (10) for a turbine (16) including a vibration damper (12) having a mounting base (38) sealingly disposed at an inlet end (24) of a cooling fluid passageway (22) within the root section (20) of the bla... | 09/18/2007 |
| 7270512 | Stacked steampath and grooved bucket wheels for steam turbines The steampath for a steam turbine includes stacked stator rings each mounting inwardly directed nozzles and stacked rotor wheels each mounting outwardly directed buckets mounting blades. By alternately stacking the stator rings and rotor wheels, the nozzles and buck... | 09/18/2007 |
| 7261518 | Locking arrangement for radial entry turbine blades A locking arrangement for a row of radial entry blades (62) of a turbo-machine. A closing blade (66) includes a root portion (74) having an axial attachment shape (78) for engagement with an axially oriented slot having an axial attachmen... | 08/28/2007 |
| 7249968 | Electrical connections for harsh conditions Apparatuses are provided which basically comprise a socket which has at least two contiguous passages formed therein which are adapted to receive exposed wire and/or insulated wire. Bonding materials and crimp joints, alone or in combination, are provided to further... | 07/31/2007 |
| 7192256 | Rotor end piece The invention relates to a rotor end piece (1) for rotors (2) of thermal turbomachines with a circumferential slot (3), consisting of two end piece halves (4, 4′) having side faces (5, 5′) opposite one another in the installed ... | 03/20/2007 |
| 7114927 | Fixing method for the blading of a fluid-flow machine and fixing arrangement A fixing method for blading of a fluid-flow machine, in which first of all the turbine blades (31, 32) are inserted into the fastening slot (1) of a rotor (2) or stator until only the intermediate fitting gap is left... | 10/03/2006 |
| 7108607 | Helical groove fasteners and methods for making same Helical groove fasteners and methods for producing the same are provided for use in systems requiring fluid passage through the fastener. In one embodiment, the fastener includes a shank, a head, a threaded portion, and at least one groove extending through at least... | 09/19/2006 |
| 7080974 | Retention capacity of a blade having an asymmetrical hammerhead fastener, with the help of platform stiffeners The invention relates to a bladed disk for a turbomachine, the disk including blades which extend into a conical stream and which are held in a peripheral groove of said disk by hammerhead type fasteners, each of said blades further including a platform whose radial... | 07/25/2006 |
| 7048507 | Axial-flow thermal turbomachine The invention relates to an axial-flow thermal turbomachine having a metallic rotor (1), in which rotor blades (3) made of an intermetallic compound are mounted in a circumferential groove to form a row of blades. The invention is characterized in that... | 05/23/2006 |
| 7048508 | Rotor end piece A rotor end piece (1) for rotors (2) of thermal turbormachines is provided with circumferential slot (3), including two end piece halves (4, 4′) having side faces (5, 5′) opposite one another in the installed state and top surf... | 05/23/2006 |
| 7037079 | Axial-flow thermal turbomachine The invention relates to an axial-flow thermal turbomachine, having a rotor (1) made from a metallic material with a first density (D1), in which rotor blades (3, 3′) and intermediate pieces (4) are mounted alternately in a circumfe... | 05/02/2006 |
| 7029237 | Retention capacity of blade having an asymmetrical hammerhead connection The invention relates to a method of improving the retention capacity of a blade having an asymmetrical hammerhead connection and extending in a conical stream, with the root of the blade being retained in a peripheral groove in a disk, said groove having an upstrea... | 04/18/2006 |
| 6991433 | Drum, in particular a drum forming a turbomachine rotor, a compressor, and a turboshaft engine including such a drum The drum of the invention is generally in the form of a body of revolution about a longitudinal axis, being made of a metal alloy and extending between an upstream end and a downstream end along a curved profile capable of being circumscribed in an annular envelope ... | 01/31/2006 |
| 6981847 | System for connecting and locking rotor blades of an axial compressor System for connecting and locking blades which are fixed circumferentially to a rotor disc (1) of an axial compressor, comprising a plurality of blades (10, 10′) positioned in an array along the circumference of rotor disc (1), each blade (... | 01/03/2006 |
| 6945754 | Methods and apparatus for designing gas turbine engine rotor assemblies A method enables a rotor assembly for a gas turbine engine to be designed. The method comprises providing a plurality of rotor blades that each include a dovetail that includes a pair of blade pressure faces and a dovetail bottom that extends arcuately between the p... | 09/20/2005 |
| 6752598 | Device for immobilizing blades in a slot of a disk The invention relates to a device for immobilizing blades in the peripheral slot of a turbomachine disk. Said blades comprise roots of the hammer head type adapted to be introduced into said slot through a loading window and held in said slot by collaboration of sha... | 06/22/2004 |
| 6682307 | Sealing system for a rotor of a turbo engine A turbomachine, in particular a gas turbine, includes a rotor which extends along an axis of rotation. The rotor includes a circumferential face, which is defined by the outer radial boundary surface of the rotor, and a receiving structure. Additionally, ... | 01/27/2004 |
| 6594619 | Apparatus and method for predicting failures of spinning disks in turbo-machinery An apparatus is described for detecting the early signs of cycle-induced fatigue and thereby predicting failure of the rotating disk in turbo-machinery. It identifies asymmetrical growth of hub-blade diameter as a predictor of incipient crack growth. Tip ... | 07/15/2003 |
| 6499959 | Steam turbine high strength tangential entry closure bucket and retrofitting methods therefor A steam turbine wheel has a male dovetail projecting about its peripheral margin and a gap in the margin. Buckets having bases with complementary female dovetails are disposed in the gap and register with the male dovetail of the wheel, enabling the bucke... | 12/31/2002 |
| 6471483 | Turbine disc A turbine disc for carrying turbine blades is rotatable about a central axis and has a circumferentially extending peripheral face divided into two side face strips by a circumferentially extending root slot. For the greater part of its circumferential le... | 10/29/2002 |
| 6464463 | Blade locking device with hammer fastener on a disk The invention relates to hammer-fastener blade-locking device affixing the blades in the channel (2) of a turbojet-engine rotor disk (1) and comprising a case (15) of which the cross-section matches that of the channel (2), further a locking element (16) ... | 10/15/2002 |
| 6431836 | Blade lock and process for manufacturing a blade lock The blades (3) of a turbine of axial design are inserted into an undercut blade groove (2) of the turbine rotor (1) in a positive-locking manner and are secured by a blade lock. The blade lock comprises a mounting space (7), which is in connection with th... | 08/13/2002 |
| 6428279 | Low windage loss, light weight closure bucket design and related method A turbine closure bucket adapted to complete assembly of a row of tangential entry buckets on a rotor wheel includes an airfoil portion and a mounting portion for mounting the bucket to a turbine wheel. The mounting portion has front and back faces, with ... | 08/06/2002 |
| 6416276 | Heat shield device in gas turbines A rotor (1) of a turbomachine comprises a basic rotor element (2) and a multiplicity of rotor blades (3, 3', 3", 3'"). The rotor blades (3, 3', 3", 3'") are arranged in a distributed manner in at least one row on the circumference of the basic rotor eleme... | 07/09/2002 |
