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| Number | Title | Issue Date |
| 8109717 | Gas turbine engine systems involving hydrostatic face seals with integrated back-up seals Gas turbine engine systems involving hydrostatic face seals with back-up seals are provided. In this regard, a representative seal assembly for a gas turbine engine includes: a hydrostatic seal having a seal face and a seal runner; and a back-up seal; wherein, in a ... | 02/07/2012 |
| 7572099 | Seal for turbine engine A turbine engine includes a first turbine structure that supports a seal. The seal is movable within a recess of the first turbine structure. The seal is arranged in close proximity to a seal land of a second turbine structure for preventing a fluid from leaking pas... | 08/11/2009 |
| 7367776 | Turbine engine stator including shape memory alloy and clearance control method A turbine engine stator assembly in juxtaposition across a radial gap with a rotary blading assembly includes a radially movable shroud and a gap control member made of at least one shape memory alloy (SMA). The SMA is selected and preconditioned to deform pre-selec... | 05/06/2008 |
| 7347662 | Sealing arrangement A sealing arrangement between annular components 2, 4, for example in a gas turbine engine, comprises an L-shaped sealing ring 20. The sealing ring 20 has a first limb 24 received in a groove 28 in the first component 2, and... | 03/25/2008 |
| 7344356 | Mechanical seal with bellows seating alignment A mechanical seal having a stationary ring and a rotating portion. The rotating portion includes a runner adjacent the stationary ring, an elastomer bellows adjacent the runner, a spring retainer plate and a spacer positioned between the elastomer bellows and the sp... | 03/18/2008 |
| 7344357 | Methods and apparatus for assembling a rotary machine A method for assembling at least one seal assembly to a turbine having a casing extending at least partially around a rotor is provided. The method includes coupling the seal assembly to the casing such that the seal assembly extends into a fluid flow passage define... | 03/18/2008 |
| 7338253 | Resilient seal on trailing edge of turbine inner shroud and method for shroud post impingement cavity sealing A sealing arrangement for the post impingement cavity of a stator shroud segment is provided that includes a resilient seal to reduce air leakage and improve turbine energy efficiency. The stator shroud segment includes an outer shroud having a leading edge groove a... | 03/04/2008 |
| 7334985 | Shroud with aero-effective cooling A turbine shroud section includes a cooling passage that bleeds cooling air through an opening in a surface. The cooling passage forms an angle relative to an expected fluid flow direction. The angle defines an angular component in a circumferential direction, which... | 02/26/2008 |
| 7334984 | Turbine shroud assembly with enhanced blade containment capabilities A low pressure turbine shroud assembly includes a backsheet with enhanced blade containment capabilities that is sized to be retrofitted into a conventional low pressure turbine assembly. The backsheet has first and second mounting rails at axially opposite ends the... | 02/26/2008 |
| 7320185 | Drive device for a household appliance and method for mounting an electric motor A drive device for a household appliance, in which an electromotor is fixed by a fixing screw. An insulation layer of a material with a defined conductivity is located between the fixing screw and the electromotor. The fixing screw is tightened with a defined torque... | 01/22/2008 |
| 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 |
| 7291946 | Damper for stator assembly A damper for a stator assembly, the stator assembly comprising a stator segment and a seal mounted to the stator segment. The damper locates between the stator segment and the seal, and comprises: a medial section; and opposed arms extending from the medial section.... | 11/06/2007 |
| 7287956 | Removable abradable seal carriers for sealing between rotary and stationary turbine components The turbine includes a diaphragm having a seal carrier mounted in opposition to seal teeth carried by the rotary component. The seal carrier includes a seal face having a coating of abradable material enabling the rotary component to abrade the material from the sea... | 10/30/2007 |
| 7270333 | Brush seal with adjustable clearance A brush seal, comprising: a bristle arrangement having a retention section; a pair of plates flanking the bristle arrangement and having a clamping section to frictionally engage the retention section. The clamping section allows movement of the retention section be... | 09/18/2007 |
| 7261515 | Shaft sealing mechanism, structure for mounting shaft sealing mechanism on stator, and turbine A shaft sealing mechanism of an annular shape having at least one divided portion, which is installed in an annular space between a rotor and a stator, includes a group of thin plates. Outer peripheral ends of the thin plates are joined, and inner peripheral free en... | 08/28/2007 |
| 7229247 | Duct with integrated baffle An integrated duct and baffle arrangement employing a hairpin transition area such that the construction is adapted to flex under thermal conditions. ... | 06/12/2007 |
| 7229246 | Compliant seal and system and method thereof A compliant seal assembly for a rotating machine is provided. The seal assembly includes a static member, a movable member and a biasing member. The static member is rigidly fixed to the machine at its fore and aft ends. The movable portion has a first sealing surfa... | 06/12/2007 |
| 7217089 | Gas turbine engine shroud sealing arrangement A ring seal is mounted in the annular gap between a shroud platform overhanging portion and the surrounding shroud support to minimize cooling air leakage through the shroud. ... | 05/15/2007 |
| 7214034 | Control of leak zone under blade platform A system for controlling a leakage zone under platforms of blades of a turbomachine blade-wheel by liners having edges that flare radially inwards, and that are disposed in inter-blade cavities defined by the platforms, by upstream and downstream radial walls of the... | 05/08/2007 |
| 7201560 | Mounting structure for a packing ring seal segment in a turbine A packing ring holder assembly for packing seal segments about a steam turbine rotor includes a nozzle box and a holder cooperable to form a dovetail for securing packing ring segments to the nozzle box. A spring is interposed between the nozzle box and packing ring... | 04/10/2007 |
| 7201561 | Swashplate seal assembly A swashplate seal assembly sized for rotor shaft rotation therein, including an outer cover encircling the rotor shaft and covering a sealing ring having an inner circumference on which a resilient sealing wiper is inwardly disposed. The outer cover, sealing ring an... | 04/10/2007 |
| 7192246 | Seal arrangement in a machine A seal arrangement, for example a brush seal 8′ in a gas turbine engine, includes thermal matching means for matching the rates of response of a supporting ring 14′, 16′ of the seal, and of a rotatable component 4 with which the seal coope... | 03/20/2007 |
| 7186074 | Axial flow stream turbines A drum-type rotor carries an annular row of moving blades having root portions held within a slot in the periphery of the rotor. A turbine casing surrounds the rotor and carries a static blade assembly with an annular row of static blades which, together with the an... | 03/06/2007 |
| 7182345 | Hydrodynamic brush seal A hybrid brush seal is provided having two bundles of axially spaced seal bristles each of which are mounted in a ring shape on a first machine component with bristle ends directed at a sealing surface of the second, rotating machine component. The bristle ends are ... | 02/27/2007 |
| 7179052 | Assembly type nozzle diaphragm, and method of assembling the same A nozzle diaphragm assembly includes a diaphragm outer ring having a groove opened toward an inner diameter side to be continuous in an inner peripheral direction; a diaphragm inner ring having a groove opened toward an outer diameter side to be continuous in an out... | 02/20/2007 |
| 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 |
| 7172199 | Inner air seal anti-rotation device An anti-rotation device for preventing rotation of a damper spring and an inner air seal in a stator assembly is provided. The anti-rotation device is formed by a lug positioned within a slot at a center of an inner air seal arc segment. The lug engages a slot in th... | 02/06/2007 |
| 7172388 | Multi-point seal A spring seal for sealing a gap defined between first and second gas turbine engine components. The spring seal has a grasping portion for graspingly receiving a portion of the first component, and a spring loading portion adapted to extend between the first and sec... | 02/06/2007 |
| 7156613 | Arrangement for bearing relief in a gas turbine In a gas turbine, the compressor load is reduced and the turbine load is increased for controlled bearing load reduction by forming a low-pressure chamber (8) that is shielded from the compressor air at the compressor (1) and a high-pressure chamber ( | 01/02/2007 |
| 7128323 | Seal device Primary objective of the present invention is to provide a seal device wherein the seal surfaces of the device are always brought into close contact against the side walls of the mounting slot regardless of fluid conditions. The seal device has two seal portions loc... | 10/31/2006 |
| 7121790 | Gas turbine arrangement A gas turbine arrangement with heat accumulation segments (3) which are arranged, opposite moving blades, on a casing of the gas turbine, and with guide vanes (1) which are arranged adjacently to the heat accumulation segments (3) over the circu... | 10/17/2006 |
| 7101147 | Sealing arrangement A sealing arrangement that can be employed to maintain a seal in any suitable pressure vessel including but not limited to a gas turbine engine. The sealing arrangement is forg sealing a leakage gap between at least two relatively moveable parts that are adjacent to... | 09/05/2006 |
| 7090224 | Seal device Primary objective of the present invention is to effect a seal against assembly clearances formed between components which admit flows of high temperature fluids or are subjected to vibrations. The seal device is comprised of a supporting member which has a first se... | 08/15/2006 |
| 7090459 | Hybrid seal and system and method incorporating the same A seal having a first seal mechanism adapted for insertion between a first structure and a second structure, wherein the first structure is in communication with a first medium and the second structure is in communication with a second medium. The seal also includes... | 08/15/2006 |
| 7086649 | Gasket with two concentric lips A gasket, sliding about the axis of rotation of a part to be brought closer to or to be spaced apart from another part with which it provides tightness through a pair of lips provided on a ring. The gasket includes a portion of the ring capable of bending to modify ... | 08/08/2006 |
| 7070388 | Inducer with shrouded rotor for high speed applications An inducer rotor rotatably mountable in an inducer for pressurizing fluid traveling through the inducer. The inducer rotor includes a hub. The hub has a central axis and a plurality of blades extending radially outward from the hub. Each blade extends from a root po... | 07/04/2006 |
| 7063465 | Thrust bearing A thrust bearing 11 for use with a shaft 13 having a collar 15 mounted the shaft 13 and rotatable therewith has a base ring 17, a series of shoes 19 positioned on the base ring 17, and a compressible resilient spacing... | 06/20/2006 |
| 7059821 | Method and apparatus to facilitate sealing within turbines A method to facilitate sealing between a rotary component and a stationary component is provided. The rotary component includes at least one bucket secured thereon, the bucket having a flow admission side and a flow exit side. The method includes coupling a spill st... | 06/13/2006 |
| 7059829 | Compressor system with movable seal lands Aspects of the invention relate to a compressor system for a turbine engine that not only provides large compressor seal clearances as the engine passes through non-standard operating conditions, but also minimizes the clearances during normal engine operation, ther... | 06/13/2006 |
| 7052015 | Cooling arrangement for brush seal A brush seal adapted to restrict a fluid flow through a gap between a first component and a second component, comprising: a body; a brush pack secured to the body; and a passage through the body for introducing a cooling flow to the gap. The passage has a first end ... | 05/30/2006 |
