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| Number | Title | Issue Date |
| 8181965 | Replaceable brush seal elements The present invention relates to replaceable brush seal assemblies for use with turbines such as industrial gas turbines. In accordance with the present invention, a brush seal assembly comprises a flange, a brush seal mounted to the flange, and retainers preventing... | 05/22/2012 |
| 8167313 | Seal member, assembly and method A brush seal assembly and method for sealing a turbine machine rotary member relative to a stationary member circumscribing the rotary member. The seal assembly includes a first compliant seal component disposed at a radially inward region of the stationary member i... | 05/01/2012 |
| 8157266 | Full contact flexible seal assembly for heat exchanger A seal assembly for a regenerative heat exchanger can include a sealing member with a mounting base and a flexible contact portion having a contact edge that resiliently contacts a sector plate of the heat exchanger housing when the seal assembly is mounted to the h... | 04/17/2012 |
| 8132815 | Card seal for a turbine A card seal with an annular arrangement of cards that form the card seal, where the cards each form an L-shape cross section with a wide front face and a narrow side face, where the side face has a constant width from a top end to a location greater than a mid-point... | 03/13/2012 |
| 8118310 | Brush seals A brush seal including a bristle pack mounted in a holder, and having a free end for sealing with a member, a front plate for lying on a high pressure side of the seal and extending part way along the length of the bristle pack to a free end being spaced from the br... | 02/21/2012 |
| 8100404 | Leaf seal arrangement In order to provide simpler manufacture and lift up and blow down control, leaf elements are provided which have profile edges arranged to associate with each other in order to create a ring carousel, either about the front or rear edge of a leaf seal arrangement. I... | 01/24/2012 |
| 8100405 | System and method for providing compliant rotating seals A system for providing compliant rotating seals including a rotating portion that has one or more teeth extending radially from it, and a stationary portion that has a plurality of bristles extending radially from it. The one or more teeth rotatively engage the plur... | 01/24/2012 |
| 8100406 | Sealing device A gap 6 between a stationary component 2 and a rotating component 4 is sealed by means of a leaf seal comprising an array of leaves 8, 9. The leaves 8, 9 are disposed in pairs, comprising a higher curvature leaf 8 and a lowe... | 01/24/2012 |
| 8066286 | Method of sealing a gap using multistage brush seal The invention relates to a multistage brush seal of a steam turbine that comprises several brushes which in turn comprise several bristles. A plurality of brushes are arranged next to each other and are configured different from each other with regard to the length ... | 11/29/2011 |
| 8028996 | System and method for adjusting stiffness of a brush sealing system A brush sealing system includes a plurality of bristles, each having a first end coupled to a holding device and a second end protruding outwards from the holding device. One or more shims are disposed between the first end of each of the bristles and the holding de... | 10/04/2011 |
| 8011666 | Dynamic brush seal A seal capable of providing a seal for an air gap between a rotor and a stator. The seal incorporates a container for the textile insulators fixed on the rotor or the stator. The textile insulators are subjected, on one side, to an upstream pressure and, on another ... | 09/06/2011 |
| 7980562 | Seal arrangement Seal arrangements utilizing leaf seal elements are susceptible to excessive wear at their tips due to blow-down pressures. When the seal element is forced against a rear surface across the pressure differential between the sides A, B of an arrangement. These tips ma... | 07/19/2011 |
| 7976026 | Methods and apparatus to facilitate sealing in rotary machines A method and seal assembly for a rotary machine including a rotary component and a stationary component is provided. The method includes providing a seal housing including a front plate and a back plate that is spaced from the front plate such that a cavity is defin... | 07/12/2011 |
| 7967297 | Thermally-activated control gap brush seal A brush seal for use with a housing and sealing a high pressure area from a low pressure area is provided. In an embodiment, the brush seal includes a retainer and a plurality of bristles. The retainer is comprised of a thermally-sensitive material having a thermal ... | 06/28/2011 |
| 7950671 | Brush seal assembly A brush seal assembly including a pair of annular plates (11,12) defining an annular slot (14) between them and a radially outer chamber (15) opening into the slot (14); and an annular brush seal (13) having bristles (16) an... | 05/31/2011 |
| 7938403 | Brush seals A circumferentially extending brush seal positioned between static and rotary components of a machine and, during operation of the machine, the brush seal having a higher pressure region at an upstream side and a lower pressure region at a downstream side. The brush... | 05/10/2011 |
| 7931276 | Brush seal A brush seal, comprising: a bristle arrangement with a plurality of bristles; and a joint securing the bristles together; plates flanking the bristle arrangement; and a feature on the plates to receive the joint. A brush seal, comprising: a plurality of bristles, ea... | 04/26/2011 |
| 7909335 | Retractable compliant plate seals A seal arrangement for sealing the space between a rotating element and a stationary element, the sealing arrangement comprising a compliant plate seal housing supported adjustably in the stationary element, the compliant plate seal housing supporting a compliant pl... | 03/22/2011 |
| 7909334 | Sealing arrangement and method for the production thereof A sealing arrangement for a non-hermetic seal between a stator and a rotor includes a brush gasket having a plurality of bristles wound around a core element and affixed to the core element with a clamping element. The brush gasket is disposed at least partially in ... | 03/22/2011 |
| 7862047 | Apparatus and method for sealing off components with respect to a pressure difference reversal A brush seal for sealing off components movable relative to one another with respect to a pressure difference is disclosed. The brush seal having bristles which are arranged in a bristle housing which consists of two housing halves having free ends of legs which pro... | 01/04/2011 |
| 7832734 | Seal system A seal arrangement for a turbo-engine, for sealing a peripheral gap between a rotor and a stator is provided. The stator a seal holder provided with at least one groove for respectively receiving a segmented, dynamic seal. Segments of the dynamic seal are made up of... | 11/16/2010 |
| 7744093 | Seals and a method of making seals A seal and method of making seals utilizes folds in order to form creases in a length of material such that the creases reinforce individual seal elements or surfaces while perforations or slots in a seal edge allow air leakage from one side of the seal element or s... | 06/29/2010 |
| 7735833 | Double padded finger seal The present invention generally relates to sealing devices used in conjunction with two relatively rotatable members and having a fluid seal there between. Finger seals are utilized to achieve sealing between a rotating member and a stationary member. As such the pr... | 06/15/2010 |
| 7644928 | Brush seal A brush seal has a bristle housing formed by a cover element and a support element. A plurality of bristles, which are wound around a core element and secured to the core element by a clamping element are positioned in the bristle housing. At least one of the suppor... | 01/12/2010 |
| 7604242 | Pressure balanced brush seal A brush seal extends between static and rotary components. The brush seal includes a fence on the high pressure side, a bristle pack behind the fence, a bristle pack backing plate and a pressure plate. The backing plate includes a plurality of circumferentially and ... | 10/20/2009 |
| 7604241 | Seals for turbines and turbo machinery The seal between high and low pressure regions in a turbine or turbo-machinery includes arcuate segments having a brush seal flanked on one or both sides by a plurality of beams lying adjacent to and in contact with one another. Shims separate the bristles of the br... | 10/20/2009 |
| 7578509 | Seal assembly and rotary machine containing such seal A seal assembly which, among other applications, may be used for sealing fluid leakage between a steam or combustion (gas) turbine rotor and a turbine stator body. The seal assembly includes elements having a plurality of spaced leaf seal members with slots therebet... | 08/25/2009 |
| 7523943 | Sealing arrangement for sealing a gap between two components which can rotate in relation to each other about a common rotational axis A sealing arrangement for sealing a gap between two components which can move rotationally with respect to one another about a common axis of rotation, having a brush seal on a first component which interacts with a sealing surface of the second component. The seali... | 04/28/2009 |
| 7516962 | Spoke-centered brush seal arrangement for use in a gas turbine An arrangement is provided for a non-hermetical seal between the stator and the rotor of a gas turbine. The arrangement comprises a brush seal which is arranged in a receiving chamber that is formed by at least one spacer or reinforcing element arranged between pref... | 04/14/2009 |
| 7461847 | Self centering, floating brush seal assembly A self centering, floating brush seal assembly for a machine housing including a seal channel disposed circumferentially about a rotating shaft. The seal channel is typically configured to accommodate a ring seal. The ring seal is removed and a radially floating bru... | 12/09/2008 |
| 7458584 | Reverse flow tolerant brush seal In accordance with the present application, a fluid seal 30 and fluid sealing element 32, which are tolerant of fluid F direction reversals are provided. A sealing element 32 has at least two brush stages 50 to restrict leakage of the flu... | 12/02/2008 |
| 7445212 | Brush seal A brush seal for sealing a rotor with respect to a stator includes a bristle housing which is held on the stator or rotor, a cover plate, a supporting plate, a circumferential surface and two side surfaces and in which bristles oriented with their free ends to the r... | 11/04/2008 |
| 7438526 | Large radial movement compliant seal A compliant seal provides a seal between an upstream region and a downstream region. The seal includes: a seal pack carrier defining a slot, the seal pack carrier having an upstream face and a downstream face; and a seal pack slideably mounted within the slot, the s... | 10/21/2008 |
| 7434813 | Large radial movement compliant seal A compliant seal assembly having a seal pack carrier having an upstream face and a downstream face that defines a slot, and a seal pack having an upstream face and a downstream face slideably mounted within the slot. The seal pack carrier and the seal pack contact e... | 10/14/2008 |
| 7419164 | Compliant plate seals for turbomachinery A shaft seal serves to reduce leakage between a rotating shaft and a static shell. The shaft seal includes a plurality of compliant plate members, each having a root and a tip. The compliant plate members are secured to the static shell at their root in facing relat... | 09/02/2008 |
| 7413194 | Pressure balanced annular seal This invention provides a segmented annular seal (10) the sealing leakage gaps between relatively movable components 14,16 between high and low pressure regions in a gas turbine engine, for example for sealing an engine shaft 16. The seal compri... | 08/19/2008 |
| 7410173 | Hydrodynamic brush seal A hybrid brush seal is provided for sealing a circumferential gap between two machine components that are relatively rotatable with respect to each other having seal bristles mounted in a ring shape on a first machine component with bristle ends directed at the seal... | 08/12/2008 |
| 7387301 | Brush seal for sealing a gap between a rotor and a stator The invention relates to a brush seal for sealing a gap between a rotor and a stator, with at least one brush ring, comprising a number of sealing brushes and at least two annular brush ring carriers, running in the circumferential direction of the rotor. Each brush... | 06/17/2008 |
| 7364165 | Shaft seal mechanism A leaf seal as a shaft seal mechanism is made compact and enables reduction of manufacturing cost. Plural thin plates 29 lapped one on another in layers have their outer circumferential proximal ends fixed to each other by welding so that an annular thin plat... | 04/29/2008 |
| 7347423 | Arrangement in connection with mechanical seal An arrangement in connection with a mechanical seal includes at least two sliding surfaces pressing against each other, which are arranged to seal a gap between a rotating and a non-rotating machining part, and mechanism for providing a sealing fluid flow cooling th... | 03/25/2008 |
