| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 277543000 | Segmented ring | 18 |
| 20090020959 | Segmented packing ring - The invention relates to a segmented packing ring for sealed packages, comprising at least two annular segments ( | 01-22-2009 |
| 20090026713 | SEALING APPARATUS AND GAS TURBINE HAVING SAME - It is an object of the present invention to provide a sealing apparatus having high sealing performance, entailing a low cost, and satisfactory in assembly characteristics. The sealing apparatus is a differential pressure-responsive sealing apparatus which is inserted between seal grooves formed in the side surfaces of outlet flange portions of adjacent combustor transition pipes to seal clearance between the side surfaces, comprising: a minimum required number of seal pieces connected in the longitudinal direction for imparting flexibility, the seal piece comprising a heat resistant, wear resistant material, and having a pair of sealing ridges each having an arcuate surface contacting the wall surface of each seal groove. | 01-29-2009 |
| 20100201076 | Segmented packing ring - A segmented packing ring | 08-12-2010 |
| 20120261887 | Segmented Intershaft Seal Assembly - A segmented intershaft seal assembly for counter-rotating and co-rotating turbine engines is described. The assembly includes a pair of end rings, an annular seal element, and at least one resilient element. At least one end ring has a flange that extends from one side thereof. The flange has a lower annular surface. The seal element includes at least two seal segments. Each seal segment includes a ring segment and a ring flange segment. The ring segment has an upper radial surface. The ring flange segment directly contacts and extends from the upper radial surface forming either a substantially âTâ-shaped or âLâ-shaped cross section. The seal segments are disposed between the end rings. At least one resilient element biases each seal segment away from the inner shaft so that the upper radial surface contacts the lower annular surface and a portion of the ring flange segment extends beyond the flanges. | 10-18-2012 |
| 20130001886 | TWIST PROOF FLEXURES OF SEAL ASSEMBLIES - A seal assembly for a turbomachine is provided. The seal assembly includes multiple arcuate packing ring segments disposed intermediate to a stationary housing and a rotatable element about an axis. The seal assembly further includes multiple flexures mechanically coupled to the stationary housing and the multiple arcuate packing ring segments, wherein the multiple flexures are attached to the stationary housing and the arcuate packing ring segments at positions predetermined to control packing ring twist under differential pressure conditions. | 01-03-2013 |
| 20150369367 | SEGMENTED SEAL - Provided is a segmented seal that is capable of suppressing the progress of wear in a key groove and thereby attains improvement in the durability of a seal ring. The segmented seal includes a key groove ( | 12-24-2015 |
| 20160010483 | SEAL ASSEMBLY INCLUDING A NOTCHED SEAL ELEMENT FOR ARRANGING BETWEEN A STATOR AND A ROTOR | 01-14-2016 |
| 20160115825 | SEAL SUPPORT STRUCTURE FOR A CIRCUMFERENTIAL SEAL OF A GAS TURBINE ENGINE - A seal support structure is provided for a circumferential seal. In one embodiment, the seal support structure includes an engine support structure, a seal support, and a shoulder joining the engine support and seal support. The shoulder offsets the engine support from the seal support, and the shoulder and the seal support structure are configured to dampen vibration for the circumferential seal. The seal support structure may employ one or more dampening elements or materials to interoperate with a seal support structure to dampen vibration to a seal system. | 04-28-2016 |
| 277544000 | Having pressure balancing or radial bias reduction feature | 3 |
| 20100164183 | SEGMENTED SEAL WITH HYDRODYNAMIC FEATURE AND ASSEMBLY - A segment of a seal assembly for sealing a higher pressure area against a rotating member is disclosed. In an embodiment the segment comprises a radial external surface, a radial internal surface for sealing against a rotating member, a feed cavity, a ramp portion in communication with the feed cavity, a segment trough in communication with the ramp portion, one or more hydrodynamically-configured pads including an entrance; and a sealing dam disposed between the lift pad and the radial internal surface. In an embodiment of the segment, the ramp portion is configured to pick up air flow with an increase in velocity from said rotating member, and the trough or a flow-control portion is configured to prevent fluid from flowing around or circumventing the pad entrance to, at least in part, provide a dynamic feed. | 07-01-2010 |
| 20140035237 | SEALING STRUCTURE - A sealing structure capable of reducing oil leakage while preventing the oil from being deteriorated by a temperature rise of the oil. | 02-06-2014 |
| 20160169389 | ARCH-BOUND RING SEAL AND RING SEAL SYSTEM INCLUDING AN ARCH-BOUND RING SEAL | 06-16-2016 |
| 277545000 | Radial biasing spring element other than nominal garter spring | 2 |
| 20100084822 | Two-Part Piston Rod Gasket - A divided piston rod gasket for use in Stirling motors and compressors comprises two segments, adjusts by sliding and achieves a long service life. | 04-08-2010 |
| 20130264775 | SEALING ASSEMBLY FOR ROTARY MACHINES - A sealing assembly is provided. The sealing assembly includes a foil disposed circumferentially around a rotating component and configured to provide primary sealing to the rotating component between high pressure and low pressure sides and a spring system disposed adjacent to the foil. The spring system includes a plurality of features to facilitate foil surface to follow excursions of the rotating component, wherein the plurality of features provide secondary sealing from the high pressure to the low pressure sides between the foil and a stationary component. | 10-10-2013 |
| 277546000 | Particular segment end structure | 3 |
| 20150115542 | RING SEAL WITH A DOUBLE STEP SEALING JOINT - A ring seal includes a pair of end portions which engage each other in overlapping relationship. Each end portion includes first, second and third fingers which extend along an arc from a body of the seal. The second finger is adjacent to and radially inwardly with respect to the first finger and is shorter than the first finger. The first and second fingers form a Z-shaped seal surface which faces perpendicularly to the axis. The third finger is shorter than the second finger, and is positioned radially outwardly of the second finger. The end portions have complimentary mirror image relationship to each other so that they engage in overlapping relationship. Each finger forms a corresponding radially extending end surface. The body forms a radially extending shoulder. Each finger also forms a corresponding radially inwardly facing side surface. The first and third side surfaces are spaced radially outwardly with respect to the second side surface. | 04-30-2015 |
| 277547000 | Interfitting projection and recess | 2 |
| 20150323076 | SEALING RING - A sealing ring is provided for sealing a shaft or a lifting rod against a housing. The sealing ring includes a radially inner circumferential surface, a radially outer circumferential surface, and two axially aligned side surfaces. At least one of the circumferential surfaces and at least one of the side surfaces are arranged as sealing surfaces against a shaft or a lifting rod, on the one hand, and against a housing or another component arranged between them, on the other hand. The sealing ring is formed in a plurality of circular segments, respectively extending over a partial circumference of the sealing ring. The segments have at their end sections mutually corresponding connecting regions, which secure the opposite end sections of adjacent segments against mutual displacement in both axial directions of the sealing ring. A sealing arrangement is further provided using the sealing ring. | 11-12-2015 |
| 20160153563 | SEAL AND A METHOD OF FORMING THE SAME | 06-02-2016 |
| 277548000 | Plural complementary interfitting rings | 2 |
| 20090108535 | Multipart packing ring - In pressure packings for sealing a piston rod of a compressor, a combination of a radially cut and a tangentially cut packing ring is generally used. These two interacting packing rings must in this case be prevented from rotating relative to one another in order to ensure that the wear gaps are covered by the other ring in each case. The rotation prevention means is generally a pin which is placed in both rings. However, owing to the resulting differing wear to the radially cut and the tangentially cut packing ring, the rotation prevention pins are subjected to shear stress which can cause the pins to break. In order to avoid that, pressure packings are proposed which have individual packing rings and have to be specially cut for this purpose. The present invention describes a packing ring of this type that is distinguished by especially low wear to the ring segments and a long service life associated therewith. The packing ring | 04-30-2009 |
| 20150069717 | Split Seal for a Shaft - A shaft seal includes first and second rings, each formed from first and second discrete arc segments, mounted on a shaft. The first ring includes a central opening and a flange projecting axially away from a first axial surface of the first ring around the central opening, and the flange has a radially outer surface. The second ring has a radial inner face defining a central opening that includes a first portion extending from a first axial face of the second ring and a second portion extending from a second axial face of the second ring, and the second ring is mounted to the first ring with the second portion in contact with the radially outer surface of the flange. A plurality of fasteners extend from the second ring into an axial surface of the first ring or from the first ring into an axial face of the second ring. | 03-12-2015 |
