Class 416/198A - Turbo machine

Subclass of Class 416 - Fluid reaction surfaces (i.e., impellers)
No. of patents: 181
Last issue date: 10/25/2011

Number	Title	Issue Date
8043062	Turbine rotor and turbine having the same A turbine rotor is provided with a torque transfer mechanism equipped between a pair of adjacent rotor discs among a plurality of rotor discs so as to transfer a torque from one rotor disc to another rotor disc. The torque transfer mechanism is provided with a first...	10/25/2011
7901186	Seal assembly A seal assembly (60) for sealing first and second static parts (40A, 40B) with opposed slots (44A, 44B) together forming a pocket (46). The seal assembly (60) comprises a floor strip (70) positioned adjacent th...	03/08/2011
7581931	Gas turbine belly band seal anti-rotation structure A seal strip assembly for use in a turbomachine having a plurality of stages including rotationally driven disks, and arms on opposed portions of adjoining disks to define paired arms with a space therebetween. The seal strip assembly includes a seal strip positione...	09/01/2009
7549845	Gas turbine having a sealing structure In a gas turbine, annular overhang portions are formed on adjacent surfaces of a plurality of rotor discs so as to face each other, surrounding the rotor axis, groove portions are provided circumferentially to the surfaces of the overhang portions facing each other,...	06/23/2009
7540713	Threaded rotor assembly with a centrifugal lock A rotor disk assembly having a plurality of rotor disks secured together by annular projections with screw threads thereon for easy assembly and disassembly. The annular projections include a plurality of spring biased pins that push against an opposing annular proj...	06/02/2009
7507072	Turbine module for a gas-turbine engine with rotor that includes a monoblock body A turbine module for a gas-turbine engine with a turbine rotor includes four disks at least supporting blades at their periphery. Two of the disks form a monoblock body. The monoblock body includes two lateral inter-disk ferrules, the ferrules being bolted on the di...	03/24/2009
7470113	Split knife edge seals A compressor for a turbine engine includes multiple compressor disks having rotor blades mounted about the circumference of each of the disks. A plurality of stator vanes extend between the rotor blades of axially adjacent disks. A knife edge seal segment is support...	12/30/2008
7438530	Method of assembling one-piece bladed disks, and a device for damping vibration of the blades of such disks A method of assembling together one-piece bladed disks by friction welding, and a damper device for damping vibration of the blades of the disks. The damper device includes annular linings for covering the blades and filling the gaps between the blades, the linings ...	10/21/2008
7431564	Turbine blisk A blisk for use in the turbine section of a gas turbine engine comprises a disk around the circumference of which is disposed a plurality of blades in an annular array. The blades are preferably cast separately and then joined, for example by welding, so that the ro...	10/07/2008
7402020	ACM cooling flow path and thrust load design An air cycle machine includes a housing having a compressor housing portion. A shaft is supported by the housing and includes a thrust runner. A hydrodynamic thrust bearing is arranged adjacent to the thrust runner and includes upstream and downstream sides. A compr...	07/22/2008
7364402	Turbine module for a gas turbine engine A turbine module for a gas turbine engine includes at least one turbine disk and a disk-shaped component mounted on the turbine disk upstream relative to the gas flow. The module can be assembled to the compressor of the engine, wherein the component is preassembled...	04/29/2008
7334983	Integrated bladed fluid seal Disclosed are various embodiments of a gas turbine blade to vane interface seal for restricting leakage of cooling air and improving the apportioning of the cooling air to the seal. Accordingly, a turbine rotor contains a first and a second stage of radially extendi...	02/26/2008
7316402	Segmented component seal A seal for restricting leakage of a fluid from a first chamber, through a gap between two components, to a second chamber is provided. A slot is formed in each of the two components. The slots face one another and are open to the gap. Each slot contains a longitudin...	01/08/2008
7309210	Turbine engine rotor stack A turbine engine has a first disk and a second disk, each extending radially from an inner aperture to an outer periphery. A coupling, transmits a torque and a longitudinal compressive force between the first and second disks. The coupling has first means for transm...	12/18/2007
7273352	Inlet partial blades for structural integrity and performance Methods and apparatus for conveying fluids (e.g., liquids, gases, and mixtures thereof) are disclosed. A turbopump in accordance with an exemplary implementation of the present invention comprises an impeller defining at least one flow channel and a shroud defining ...	09/25/2007
7241111	Contoured disk bore A turbine disk comprising a disk bore disposed about a centerline, the disk bore comprising a bore width, and a web extending radially away from the disk bore wherein the disk bore comprises in cross-section a contoured shape comprising a contour depth. ...	07/10/2007
7220099	Sealing arrangement for a rotor of a turbo machine A sealing arrangement for a rotor of a turbomachine includes a blade (2), a heat shield (3, 4) and a sealing element (5, 6) for sealing between the blade (2) and the heat shield (3, 4) when the blade (2), heat shield (3, ...	05/22/2007
7219490	Nested core gas turbine engine A gas turbine engine comprising a combustion chamber section, a turbine section, and a compressor section. The turbine section surrounds the combustion chamber and the compressor section surrounds the turbine section. ...	05/22/2007
7220106	Francis wheel and hydraulic machine comprising one such wheel A Francis runner that includes a crown, a band and blades which extend between the crown and the band. An angle (β24) between a linear speed (U, D224) of one of the blades and a median of the blade at the trailing edge, has a value between 20 ...	05/22/2007
7210909	Connection between bladed discs on the rotor line of a compressor A first rotor piece includes a first ring provided with a succession of holes and notches. An assembly is formed by a second rotor piece fixed to a third rotor piece. The second piece ends downstream in a second ring including holes. The third piece ends upstream in...	05/01/2007
7195417	Composite tie rod A composite tie rod comprises a plurality of coated fiber bundles stretched between two nut assemblies. Fiber holders, in combination with the nut assemblies, hold the fiber bundles in tension to provide a compressive force for maintaining component placements along...	03/27/2007
7186079	Turbine engine disk spacers A gas turbine engine rotor stack includes one or more longitudinally outwardly concave spacers. Outboard surfaces of the spacers may be in close facing proximity to inboard tips of vane airfoils. The spacers may provide a longitudinal compression force that increase...	03/06/2007
7175387	Seal arrangement for reducing the seal gaps within a rotary flow machine A seal arrangement for reducing the seal gaps within a rotary flow machine, preferably an axial turbomachine, has rotor blades and guide vanes, which are respectively arranged in at least one rotor blade row and guide vane row and have respective blade/vane roots (	02/13/2007
7146971	Impeller and a supercharger for an internal combustion engine An impeller for a supercharger for an internal combustion engine and a supercharger incorporating such an impeller is disclosed. The impeller includes a molded upper part having a top wall defining a top opening. The top wall extends outwardly to a lateral edge and ...	12/12/2006
7147436	Turbine engine rotor retainer A gas turbine engine has a rotor stack carried by a central shaft. A number of retainer segments each have a first surface engaging the rotor stack and a second surface engaging the central shaft so as to transmit a precompression force from the central shaft to the...	12/12/2006
7128535	Turbine drum rotor for a turbine engine The present invention relates to an improved turbine structure for use in a gas turbine engine. The turbine structure includes a one-piece drum rotor and a plurality of turbine blades attached to the one-piece drum rotor. The one-piece drum rotor includes integrally...	10/31/2006
7101144	Steam turbine rotor, steam turbine and method for actively cooling a steam turbine rotor and use of active cooling The proposed steam turbine rotor extends along an axial extent and includes: an outer side which adjoins an outer space which is intended to receive a main flow of a fluid working medium, a first location along the outer side, at which a first blade is held, a secon...	09/05/2006
7094030	Contoured disk bore A turbine disk comprising a disk bore disposed about a centerline, the disk bore comprising a bore width, and a web extending radially away from the disk bore wherein the disk bore comprises in cross-section a contoured shape comprising a contour depth. ...	08/22/2006
7059831	Turbine engine disk spacers A gas turbine engine rotor stack includes one or more longitudinally outwardly concave spacers. The spacers may provide a longitudinal compression force that increases with rotational speed. ...	06/13/2006
7052240	Rotating seal arrangement for turbine bucket cooling circuits The dovetails of turbine buckets are received in dovetail grooves between circumferentially adjacent wheelposts on a turbine wheel of a gas turbine rotor. The wheel and a spacer are rabbeted one to the other and an axially forwardly extending projection on each buck...	05/30/2006
7008190	Turbomachine rotor arrangement In a succession of rotor disks, only the end disks are connected to a main structure by bolted extensions and the intermediate disks are suspended from rigid spacer pieces by centering and anti-rotation connections. The end disks are interconnected to clamp the asse...	03/07/2006
6939508	Method of manufacturing net-shaped bimetallic parts A method for manufacturing a net-shaped bimetallic part that includes the steps of: providing a tool that defines a cavity and a tooling surface; depositing a layer of an environmental metal material onto the tooling surface; filling the cavity in the tool with a po...	09/06/2005
6929453	Locking spacer assembly for slotted turbine component Aspects according to the invention relate to a locking spacer assembly for a slotted turbine engine component. In one embodiment, aspects of the invention can be used in connection with the assembly and disassembly of a disc hosting a row of airfoils as can be found...	08/16/2005
6899519	Method of detecting a change in the structure of a complex shape article A method of detecting the change in the structure of a turbine rotor uses the steps of injecting an ultrasonic signal into the turbine rotor at a first position using a first ultrasonic transducer to produce a diffuse field ultrasonic signal in the rotor; detecting ...	05/31/2005
6857846	Stackable vertical axis windmill A stackable, vertical axis windmill comprised of a braced external frame that enables stacking of multiple windmill assemblies. Couplings are located on both ends of the vertical rotor shaft to enable stacking and the transmission of power, an internal wind flow cav...	02/22/2005
6779964	Viscous drag impeller components incorporated into pumps, turbines and transmissions The present invention relates generally to systems and methods for facilitating the movement of fluids, transferring mechanical power to fluid mediums, as well as deriving power from moving fluids. The present invention employs an impeller system in a variety of app...	08/24/2004
6729842	Methods and apparatus to reduce seal rubbing within gas turbine engines A method enables a nozzle assembly for a gas turbine engine rotor assembly to be fabricated. The rotor assembly includes at least two adjacent rows of rotor blades coupled together by a disk spacer arm. The method includes providing a nozzle assembly that includes a...	05/04/2004
6692232	Rotor assembly for disc turbine A disc turbine rotor assembly comprised of spaced-apart discs includes means of spacing apart disc members of said rotor assembly, which allow for local variation and radial expansion under various local operating temperatures, without allowing axial defl...	02/17/2004
6655920	Turbomachine rotor assembly with two bladed-discs separated by a spacer A spacer (36) made to be installed between two permanently connected discs (31 and 32), without a bolted flange, and comprising axial thrust (43, 47) as well as outer radial thrust (45, 48) alignment surfaces (41). It comprises moreover an outer cover (37...	12/02/2003
6648540	Rabbet plate for coupling rotors A locating plate for locating a first piece of rotary machinery relative to a second piece of rotary machinery is provided. The plate has a first periphery surface for mating with a first receiving surface of the first piece of rotary machinery and a seco...	11/18/2003

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Class 416/198A - Turbo machine