| Entries |
| Document | Title | Date |
|---|
| 20080317595 | Fluid Pump - A pump pulley is supported on a pump body via a bearing interposed between the outer peripheral surface of the pump body and the pump pulley so that the pump pulley can freely rotate relative to the pump body. A pump shaft extends along the rotation axis of the pump pulley into a pump chamber formed by a pump base and the pump body, and one end of the pump shaft is fitted to the pump pulley and the other end is fitted to an impeller located within the pump chamber. A body side seal member and a shaft side seal member that form a mechanical seal to maintain the leak tightness of the pump chamber are in opposite to and contact each other in the direction of extension of the pump shaft to form a seal surface, and the plane that includes the load support center of the bearing and the plane that includes the seal surface of the mechanical seal are substantially coincidental. | 12-25-2008 |
| 20080317596 | Turbocharger - The invention relates to a turbocharger ( | 12-25-2008 |
| 20090136345 | SEGMENTED CERAMIC LAYER FOR MEMBER OF GAS TURBINE ENGINE - A turbine seal member for use in a gas turbine engine includes a turbine seal substrate having a gas-path side and a ceramic layer disposed on the gas-path side that includes a plurality of mechanical indentations. | 05-28-2009 |
| 20090148284 | Vacuum Pump - A vacuum pump for producing a vacuum in a space which is to be evacuated comprises a housing ( | 06-11-2009 |
| 20100003132 | TURBOCHARGER - The invention refers to a turbocharger with a compressor ( | 01-07-2010 |
| 20100028148 | SEALING DEVICE FOR ROTARY FLUID MACHINE, AND ROTARY FLUID MACHINE - The invention provides a sealing device for a rotary fluid machine and a rotary fluid machine that reduce a decrease in efficiency and suppress swirling stall in a multistage rotary fluid machine. The sealing device includes a housing that rotatably accommodates a rotary shaft; a plurality of guide parts that extend along at least one of a radial direction and an axial direction of the rotary shaft and that impart flow velocity components in the rotation direction of the rotary shaft to fluid passing through therebetween; a partition part that connects ends of the plurality of guide parts and that serves as a partition between spaces between the plurality of guide parts and an outside space; a first seal part that is an annular protrusion extending in the radial direction, that forms a first gap with respect to the rotary shaft or the housing, and that blocks fluid flowing toward the plurality of guide parts; and a second seal part that is an annular protrusion, that forms a second gap with respect to the rotary shaft or the partition part, and that blocks fluid flowing through the outside space. | 02-04-2010 |
| 20100111691 | TURBINE ENGINE COMPONENTS - A turbine engine component includes a shaft and two sets of hollow radial plates. The shaft includes an axial section forming a portion of a main passage having a substantially uniform diameter. The axial section has two ends and a center located substantially halfway between the two ends. The first set of hollow radial plates extends radially outwardly from the shaft at a first axial location between the center and a first end of the axial section. Each hollow radial plate is hollow and has an interior surface defining annular chambers surrounding and in flow communication with the main passage. The second set of hollow radial plates extends radially outwardly from the shaft at a second axial location between the center and a second end of the axial section. Each hollow radial plate has an interior surface defining annular chambers surrounding and in flow communication with the main passage. | 05-06-2010 |
| 20100111692 | EXHAUST GAS TURBOCHARGER FOR A MOTOR VEHICLE - The invention relates to an exhaust gas turbocharger ( | 05-06-2010 |
| 20100119367 | SEALING DEVICE FOR ROTARY FLUID MACHINE, AND ROTARY FLUID MACHINE - The invention provides a sealing device for a rotary fluid machine and a rotary fluid machine capable of stabilizing the behavior of a rotary shaft in the rotary fluid machine. The sealing device includes: a housing that rotatably accommodates a rotary shaft; a plurality of guide parts that extend along at least one of a radial direction and an axial direction of the rotary shaft and that are arranged side-by-side in a circumferential direction of the rotary shaft; a partition part that serves as a partition between spaces between the plurality of guide parts and an outside space; a first seal part that is an annular protrusion, that forms a first gap with respect to the rotary shaft or the partition part, and that blocks a flow of fluid passing through the outside space; and a second seal part that is an annular protrusion extending in the radial direction, that forms a second gap with respect to the rotary shaft or the housing, and that blocks a flow of fluid that has passed through the spaces between the plurality of guide parts and a flow of fluid that has passed through the first seal part. | 05-13-2010 |
| 20100119368 | DOUBLE SEAL WITH PRESSURISED LIP - A sealing device for providing sealing between a casing and a shaft rotatably mounted in the casing. The device includes first and second annular lip gaskets for placing axially side by side between the casing and the shaft. A stream of pressurized gas is delivered into an annular casing defined by the first lip gasket, the second lip gasket, and an outside surface of the shaft, such that during rotation of the shaft, the gas stream is suitable for causing at least one of the two lip gaskets to lift off a little from the outside surface of the shaft in order to flow out from the cavity. | 05-13-2010 |
| 20100143114 | TURBOCHARGER SEALING ARRANGEMENT - A turbocharger has a sealing arrangement between the turbocharger shaft and the bearing housing adjacent to the turbine and/or the compressor housings to restrict leaking of gas into the bearing housing. At least a pair of spaced sealing rings project from an annular surface of the bearing housing into corresponding annular recesses formed on the shaft. The trailing face of the second ring or the opposite surface of the recess has a plurality of radial grooves that define leak passages that serve to maintain a very small flow of gas from the turbine or compressor housing into the bearing housing. Alternatively there is a slot in the second ring to provide the leak passage. This ensures that there is a minimum gas flow so that a large pressure gradient is not applied across the second seal thereby avoiding wear, overheating and collapse of the ring. | 06-10-2010 |
| 20100150715 | THERMALLY ACTIVATED SHUTDOWN SEALS FOR ROTATABLE SHAFTS - A thermally actuated shutdown seal for a rotating shaft having a narrow annular fluid flow path surrounding the shaft. The seal surrounds the shaft with the annulus therebetween during normal operation and constricts against the shaft when the shaft slows or stops rotating. The annulus is maintained open during normal operation by a spacer interposed between opposing ends of a split ring. When the shaft stops rotating, the temperature of the annulus rises, which actuates removal of the spacer from the split ring constricting the split ring against the shaft blocking the annulus. The blocked annulus causes a pressure differential across the seal which urges a polymer seal ring, downstream of the split ring against the shaft which seals the annulus. In one embodiment, the spacer is formed of a meltable material. In a second embodiment, the spacer is removed from the split ring by a thermally responsive actuator. | 06-17-2010 |
| 20100172758 | HEAT DISSIPATION FAN - A heat dissipation fan includes a fan frame, a bearing assembly, a stator and a rotor. The fan frame includes a base and a central tube. The central tube includes an open top end and an open bottom end. The base defines a receiving concave at a bottom surface thereof. The receiving concave communicates with the central hole. A top wall is formed by the base over the concave. A sidewall is formed between the top wall and the bottom surface of the base and surrounds the concave. A plurality of first locking units extend from the top wall into the receiving concave. The bearing assembly includes an oil sealing cover for sealing the open bottom end of the central tube. The oil sealing cover includes a plurality of second locking units which are detachably interlocked with the first locking units to mount the oil sealing cover to the base. | 07-08-2010 |
| 20100183439 | Systems, Methods, and Apparatus for Controlling Gas Leakage in a Turbine - Systems, methods and apparatus for controlling gas leakage in a turbine are provided. A plurality of seals may be provided in series, where each of the plurality of seals may be operable to reduce gas backflow from an inlet of a turbine component. Further, one or more channels may be provided that are operable to direct at least a portion of the gas backflow from respective points within the plurality of seals to corresponding points within a gas flow path of the turbine. The at least a portion of the gas backflow may be directed to the points within the gas flow path through the one or more channels. Additionally, the diameters of the plurality of seals may be optimized to at least partially balance the net thrust generated by the gas flow path of the turbine. | 07-22-2010 |
| 20100226771 | FAN ASSEMBLY - A fan assembly for creating an air current includes a nozzle mounted on a base. The base comprises an outer casing, an impeller housing located within the outer casing, the impeller housing having an air inlet and an air outlet, an impeller located within the impeller housing and a motor for driving the impeller to create an air flow through the impeller housing. The nozzle includes an interior passage for receiving the air flow from the air outlet of the impeller housing and a mouth through which the air flow is emitted from the fan assembly. A flexible sealing member is located between the outer casing and the impeller housing. | 09-09-2010 |
| 20100247309 | LAMELLAR SEAL FOR A TURBOMACHINE - A lamellar seal for sealing a shaft which rotates around an axis, especially in a gas turbine, includes a multiplicity of lamella ( | 09-30-2010 |
| 20100254811 | DRY GAS BLOW DOWN SEAL - A sealing assembly configured to seal a rotating shaft of a turbo machine having a high pressure process gas, comprising a housing defining a bore configured to receive the rotating shaft and sealing assembly, wherein the housing is mounted to a casing of the turbo machine; a first sealing stage comprising a single dry gas seal and configured to blow down the high pressure process gas to a lower pressure; a labyrinth seal mounted longitudinally outward from the first sealing stage; and a second sealing stage mounted longitudinally outward from the labyrinth seal, wherein the second sealing stage comprises a tandem dry gas seal having a primary dry gas seal and a secondary dry gas seal axially spaced with an intermediate labyrinth seal. | 10-07-2010 |
| 20100278645 | Seal Structure and Control Method Therefor - Provided are a seal structure and a control method therefor that can improve sealing performance between a rotating portion and a fixed portion, smoothly start up a steam turbine, and suppress the temperature rise of the rotating portion even if the rotating portion is continuously rotated for a long period of time. | 11-04-2010 |
| 20100322765 | Turbo engine with improved compensating piston gasket - A flow machine ( | 12-23-2010 |
| 20110064572 | VANE SEALING METHODS IN OSCILLATING VANE MACHINES - The invention relates to the uses and combinations of elastomeric seals, elimination of joints between segments of a seal grid, introduction of labyrinth seal profiles, abradable or conformable vane coatings, and crushable vanes or vane edges to provide lower leakage, lower friction, lower operating temperatures, and higher efficiency within an Oscillating Vane Machine. | 03-17-2011 |
| 20110123329 | SEALING APPARATUS AND ENGINES - Sealing apparatus and engine are provided. A sealing apparatus includes a first cover plate, a second cover plate spaced apart from the first cover plate, and a sealing element disposed between the first cover plate and the second cover plate and including at least two diaphragm members, wherein a first diaphragm member has a first stiffness and a second diaphragm member has a second stiffness that is different than the first stiffness. The sealing apparatus may be disposed in an engine. | 05-26-2011 |
| 20110135464 | FAN - A fan includes a base and an impeller rotatably mounted on the base. The base protrudes a tube outwardly therefrom. The tube defines a receiving hole therein for receiving a bearing. The bearing defines a bearing hole therein. The impeller protrudes a shaft therefrom towards the base. The shaft is rotatably received in the bearing hole. The fan further includes a gasket located at a bottom of the bearing and clipped on a free end of the shaft. The gasket includes a first surface and an opposite second surface. The first surface is a smooth surface and facing directly the bottom surface of the bearing. The second surface is a rough surface relative to the first surface. At least one of the first surface and the second surface is provided with a mark to differentiate the rough second surface from the smooth first surface. | 06-09-2011 |
| 20110189013 | Arrangement comprising a shaft seal - A shaft seal for sealing a gap between a shaft and a casing is provided. The shaft seal includes a plurality of sealing modules, at least one fluid feed and at least one fluid outlet. The sealing modules include an outer main seal, and inner main seal and a fluid drain between the two. Conventional shaft seals of the above type require significant amounts of additional barrier fluid in regular intervals to ensure suitable pressure gradients. In the presently provided shaft seal, the inner seal is designed as a radial double seal which is defined by two gas seals having respective rotating sealing surfaces and stationary sealing surfaces, the pair of sealing surfaces being opposite each other in a sealing plane. The sealing planes extend from the shaft in a substantially radial manner. | 08-04-2011 |
| 20110200432 | REVERSE FLOW TOLERANT SPRING ACTIVATED BRUSH SEAL - A reverse flow tolerant brush seal arrangement for restricting the transfer of a pressurized fluid between a first and a second chamber along a moving shaft. Opposing backing plates are provided to stiffen brush bristle alignment on the moving shaft. Differential pressure between the chambers is aided by spring biasing to seat axial movement of a sliding brush seal against one of the opposing backing plates for stiffening to maintain a design clearance with a shaft being sealed. | 08-18-2011 |
| 20110236205 | SEALING MECHANISM WITH BELLOWS AND STEAM TURBINE PROVIDED WITH THE SEALING MECHANISM - Providing a sealing mechanism provided with bellows-joints, the sealing mechanism being manufactured without surplus time and labor; thereby, the natural frequencies regarding the sealing mechanism surrounding a to-be-sealed shaft body are easily handled. Around a rotor shaft | 09-29-2011 |
| 20110250067 | SHAFT SEAL - A shaft seal of the rotating wheel shaft of a turbomachine includes a rotating wheel-side seal and a bearing-side seal between the bearing housing and the shaft. An oil outlet chamber is arranged between the rotating wheel-side seal and the bearing-side seal. The oil outlet chamber is delimited by a third seal between the bearing housing and the shaft, and a gas discharge chamber is arranged between the third seal and the rotating wheel-side seal. The construction is actively cooled by means of at least one splash oil bore in the region of the oil drain channel, as a result of which coking of the shaft seal can be prevented. The third seal separates the oil issuing from the oil outlet chamber from the gas issuing from the gas discharge chamber. | 10-13-2011 |
| 20110255966 | Arrangement Comprising a Shaft Seal - A shaft seal for sealing a gap between a shaft and a casing is provided. The shaft seal includes a plurality of sealing modules, at least one fluid supply and one fluid drain, and a first main seal on which a major partial pressure difference occurs. Conventional shaft seals of the above type require significant amounts of additional barrier fluid in regular intervals to ensure suitable pressure gradients. In the presently proposed shaft seal, the first main seal is designed as a radial double seal which is defined by two gas seals having respective rotating sealing surfaces and stationary sealing surfaces, the pair of sealing surfaces being opposite each other in a respective sealing plane. The sealing planes extend in a substantially radial manner relative to the shaft. | 10-20-2011 |
| 20110299984 | Improved Air Riding Seal - An improved air-riding seal system for turbine engines is presented. The seal system includes a movable primary seal assembly, a stationary secondary seal assembly, and at least one structure to increase the stiffness of a thin film between the primary seal and a rotating component. The primary seal assembly includes an annular seal ring and an arcuate support arm. The annular seal ring has a cross section that is substantially L-shaped and a surface with a step face and a circumferential dam. The arcuate support arm has a tooth at one end adjacent to an outermost circumferential surface along the seal runner, which could include an optional notch. The tooth and outermost circumferential surface are separated by a gap. The secondary seal ring is disposed between and contacts the primary seal assembly and housing structure so as to form a bore seal and a face seal therewith. A plurality of radial dams disposed along the surface in an outward radial arrangement from the circumferential dam is provided to improve the stiffness of the thin film. Features of the invention allow for higher operating speeds. | 12-08-2011 |
| 20120003088 | SHAFT SEAL WITH CONVERGENT NOZZLE - A turbomachine is disclosed that has a main fluid flowpath extending axially along the turbomachine with a rotating shaft partly enclosed in a casing, wherein the rotating shaft and casing are moveable relative to each other and define a clearance opening about the rotating shaft, whereby the main fluid flowpath fluidly communicates with an outside region, and an annular seal body defining a fluid passage having a primary fluid inlet configured to receive a pressurized fluid, a fluid outlet disposed proximate to the clearance opening, and a convergent chamber interposed therebetween, wherein the convergent chamber is configured to accelerate the pressurized fluid out of the fluid outlet so as to create a local reduced pressure at the clearance opening. | 01-05-2012 |
| 20120009061 | TURBINE FOR THE EXPANSION OF GAS/VAPOUR - The invention regards a turbine for the expansion of gas and vapour that comprises a body or casing with a volute for the transit of the fluid from an input to an output passage through at least a statoric and a rotoric group, a possible front shield that extends radially from said volute towards the axis of the turbine shaft, an external tube member fixed in front of said shield or said volute designed to hold the turbine shaft with the interposition of a supporting unit ( | 01-12-2012 |
| 20120020785 | Shaft-Sealing Device - A shaft-sealing device includes an outer ring for receiving a shaft sleeve to rotate therewith. A magnetic-field generating unit is mounted the around rotary shaft and includes inner and outer magnetic rings. The outer magnetic ring is mounted in the outer ring. A gap is defined between an inner periphery of the outer magnetic ring and an outer periphery of the inner magnetic ring and is filled with a magnetic liquid. One or both of the inner and outer magnetic rings provide magnetic force to retain the magnetic liquid in the gap. A seal ring is mounted between the outer magnetic ring and an end of the outer ring. A lip extends from an inner periphery of the seal ring toward or away from the end of the outer ring and is at a non-parallel angle to a radial direction of the seal ring to form a seal around the rotary shaft. | 01-26-2012 |
| 20120027584 | TURBINE SEAL SYSTEM - In accordance with one embodiment, a system includes a multi-stage turbine including a first turbine stage including a first wheel having multiple first slots spaced circumferentially about the first wheel, and multiple first blade segments each coupled to at least one of the multiple first slots. The multi-stage turbine also includes a second turbine stage including a second wheel having multiple second slots spaced circumferentially about the second wheel, and multiple second blade segments each coupled to at least one of the multiple second slots. The multi-stage turbine further includes a one-piece interstage seal extending axially between the first and second turbine stages, wherein the one-piece interstage seal comprises a first radial support coupled to the first wheel and a second radial support coupled to the second wheel, and the one-piece interstage seal extends circumferentially across at least two of the multiple first slots or at least two of the multiple second slots. | 02-02-2012 |
| 20120082545 | SEAL ARRANGEMENT FOR VARIABLE VANE - A variable vane assembly for a gas turbine engine is disclosed herein. The variable vane assembly includes a vane operable to pivot about a pivot axis. The vane includes a flap portion positionable in a fluid stream for controlling a flow of fluid. The vane also includes a stem portion for mounting the flap portion. The vane also includes a button portion positioned between the flap portion and the stem portion along the pivot axis. The button portion is wider than the stem portion in at least one plane containing the pivot axis. The variable vane assembly also includes a bushing encircling the stem portion and abutting the button portion. The variable vane assembly also includes a labyrinth seal positioned between the bushing and the button portion. | 04-05-2012 |
| 20120082546 | TURBOMACHINE - A turbomachine, particularly a steam turbine, is provided. The turbomachine includes a machine housing and a shaft, which is guided through and guided out of the machine housing, at least on one side, wherein at least one annular gap present between the shaft and the machine housing is sealed by way of a shaft sealing assembly, wherein the shaft sealing assembly includes at least one radial double seal having two pairs of sealing surface pairs, which are spaced apart substantially radially and between which an annular sealing liquid chamber is formed, which can be supplied with sealing liquid via a sealing liquid feed line, wherein each sealing surface pair has an annular rotating sealing surface and an annular non-rotating sealing surface, which are arranged substantially axially opposite of each other and prestressed with respect to each other | 04-05-2012 |
| 20120093643 | MULTISTAGE TURBOCOMPRESSOR - A multistage turbocompressor is provided for compressing a process gas. The turbocompressor has includes a rotor and a casing. A gas seal is associated in each case with a first turbocompressor stage and a last turbocompressor stage for sealing a penetration of a rotor shaft through a wall of the at least one casing, against a respective stage inlet pressure or stage discharge pressure. The gas seals are connected to a sealing gas line via which they are supplied with a sealing gas. A pressure chamber on a pressure side of the gas seal of the last stage which provides sealing against pressure discharge to the environment is connected to a relief line which opens into a pressure sink. A plurality of sealing gas lines are connected to a sealing gas feed line in which at least one control valve is arranged between junctions of different sealing gas lines. | 04-19-2012 |
| 20120099985 | ABRASIVE CUTTER FORMED BY THERMAL SPRAY AND POST TREATMENT - A seal for a gas turbine engine component having an airfoil with a radial outward end and a radial inward end, one of which is bare metal. A seal member is adjacent to the bare metal end of the airfoil wherein the seal member is coated with a abrasive layer having a laser engraved surface with the top of the surface has less than about 5% of the surface area of the base of the abrasive layer. | 04-26-2012 |
| 20120107115 | Mechanical Seal With Improved Seal Assembly - Mechanical seals, seal assemblies and pumps are disclosed. A mechanical seal includes a sealing member and a mount that forms part of a mounting assembly to mount the sealing member to a support structure of the seal. In an embodiment, the mount forms part of a seal assembly and is an elastomeric ring bonded to the sealing member. | 05-03-2012 |
| 20120156031 | SEAL SHAFT FOR CONTROLLING FLUID FLOW WITHIN AN AIR CYCLE MACHINE - An example seal shaft includes a cylindrical body establishing a bore that extends axially between a first end portion of the body and a second end portion of the body. Apertures are also established in the body. The apertures extend radially between an outer surface of the body and the bore. The seal shaft further includes a first group knife edge seals and a second group of knife edge seals. The first group of knife edge seals have a diameter, and a ratio of the diameter to the total cross-sectional area of the apertures is between 58.79 and 78.77. | 06-21-2012 |
| 20120195755 | GAS TURBINE ENGINE SYNCHRONIZING RING BUMPER - A gas turbine engine includes a synchronizing ring. A cradle includes an integrally formed anti-rotation feature. The cradle is secured to the synchronizing ring and located relative thereto with the anti-rotation feature. A bumper is slidably supported within the cradle. In one example, a bushing is provided within a hole in the bumper. A fastener is inserted into the hole and a bushing to secure the bumper to the synchronizing ring. | 08-02-2012 |
| 20120224962 | SEAL STRUCTURE OF FLUID DEVICE - A seal structure includes: first and second members defining a hollow internal area of a fluid device; and a seal member fixed to the first member for sealing a gap between the first and second members. The seal member includes a sliding contact member being in sliding contact with a surface of the second member and formed of a resin. The second member includes a resin layer and a resin layer holding structure. The resin layer is formed by sliding the second member on the sliding contact member to transfer the resin forming the sliding contact member onto a sliding contact portion of the surface of the second member at which the second member comes into contact with the sliding contact member. The resin layer holding structure is a porous film formed by electric discharge surface treatment and holds the resin layer in the sliding contact portion. | 09-06-2012 |
| 20130022459 | SEALS FOR REDUCING LEAKAGE IN ROTARY MACHINES - A seal assembly for a rotary machine is provided. The seal assembly includes multiple sealing device segments disposed intermediate to a stationary housing and a rotor. Each of the segments includes at least one plate and a sealing element. The seal assembly also includes multiple inter-segment gaps formed between the multiple sealing device segments. Further, for each pair of adjacent sealing device segments, at least one pair of adjacent plates includes one plate overlapping another plate at an inter-segment gap. | 01-24-2013 |
| 20130022460 | Mechanical Seal for Large Pumps - An improved mechanical seal assembly is provided for hydro transport applications and other similar applications, such as large high pressure slurry pumps. This mechanical seal is used in large scale pumps having an axially adjustable shaft to accommodate high wear applications by maintaining suitable pump performance. The improved seal is a cartridge seal that includes a stationary seal adapter which is mounted to a pump casing and has a static gasket sealingly contacting a movable gland which non-rotatably supports the stationary seal rings of a mechanical seal. Additional seal rings are rotatably supported on the shaft wherein these rotatable and non-rotatable seal components are movable axially with the shaft to improve pump performance in high-wear conditions. The gland and non-rotatable seal rings are supported on and move with a bearing housing, along with the shaft and its seal rings. | 01-24-2013 |
| 20130034438 | SEALING ARRANGEMENT - A sealing arrangement, for example for providing an intershaft seal between shafts of a gas turbine engine, includes an air-riding sealing ring disposed between runners. A buffer fluid, such as air, is conveyed to a buffer cavity through a passage in the sealing ring. The buffer air provides a positive pressure drop along fluid-riding gaps, preventing leakage across the sealing arrangement. The sealing ring may be a split carbon ring, and measures may be provided to minimise leakage of buffer air at the split. | 02-07-2013 |
| 20130071242 | THRUST BEARING SYSTEM WITH INVERTED NON-CONTACTING DYNAMIC SEALS FOR GAS TURBINE ENGINE - A gas turbine engine includes a first non-contacting dynamic rotor seal interfaced with a spool, the first non-contacting dynamic seal operates to seal adjacent to an outer diameter and a second non-contacting dynamic rotor seal with respect to the spool, the second non-contacting dynamic seal operates to seal adjacent to an inner diameter. | 03-21-2013 |
| 20130071243 | TURBOCHARGER ROTATING ASSEMBLY - A turbocharger rotating assembly includes a bearing; a shaft and turbine wheel assembly supported by the bearing; a seal ring disposed about the shaft; and a sleeve that supports the bearing and that includes a compressor end and a turbine end, a bore extending axially from the compressor end to the turbine end, a first counter bore that forms an axial face that axially locates the bearing in the bore, a second counter bore disposed axially between the first counter bore and the turbine end wherein the second counter bore comprises a seal surface that forms a lubricant and exhaust seal with the seal ring disposed about the shaft, and a securing feature to secure the sleeve with respect to a turbocharger housing. Various other examples of devices, assemblies, systems, methods, etc., are also disclosed. | 03-21-2013 |
| 20130078090 | AIR CYCLE MACHINE SHAFT SUPPORT ASSEMBLY - An exemplary air cycle machine bearing housing includes a housing establishing a bore that receives a bearing. The bearing rotatably supports an air cycle machine shaft. The bore has an axial length and a radial diameter. A ratio of the axial length to the radial diameter is from 0.6989 to 0.7128. | 03-28-2013 |
| 20130078091 | SEALING ARRANGEMENT - A seal assembly for a bearing chamber of a gas turbine engine. The seal assembly includes a seal land having a sealing surface and a non-sealing surface, and at least one non-contact seal member having a sealing surface and a non-sealing surface. The opposing sealing surfaces define a fluid flow path for a sealing fluid such as air from a compressor of the gas turbine engine. The seal assembly includes a sealing fluid cooling arrangement comprising an oil jet configured to provide cooling oil to one or both of the seal member and the seal runner non-sealing surfaces. | 03-28-2013 |
| 20130089420 | SUBMERSIBLE PUMP - A submersible pump includes an impeller ( | 04-11-2013 |
| 20130094957 | BRUSH RING SEAL - A brush ring seal device for installation within a packing case of a turbine includes: a brush seal carrier having a substantially ring-shaped body portion having a front face, a rear face, an inner circumferential groove, and an outer circumferential groove; a brush seal mounted within the inner circumferential groove of the brush seal carrier; and a ring-shaped spring mounted within the outer circumferential groove of the brush seal carrier. The rear face of the brush seal carrier is coated with an anti-friction coating, thereby allowing movement of the brush ring seal device within the packing case. | 04-18-2013 |
| 20130142648 | ROTATING MACHINE - The rotating machine includes a rotating shaft, a case surrounding the rotating shaft, the case being provided with a fluid storing chamber and formed with a housing section. The rotating machine further includes a bearing disposed in the housing section and supporting the rotating shaft, and a ring-like seal member disposed between the fluid storing chamber and the bearing for suppressing the fluid from flowing through a clearance between the rotating shaft and the case. The case is formed with a drain hole for making communication between atmosphere and a space surrounded by the seal member and the bearing within the case and discharging the fluid leaking from the fluid storing chamber and passing the seal member to enter the space, and an atmosphere introducing hole for introducing outside air into the space to keep the space at atmospheric pressure. | 06-06-2013 |
| 20130149143 | GAS TURBINE ENGINE INCLUDING LIFT-OFF FINGER SEALS, LIFT-OFF FINGER SEALS, AND METHOD FOR THE MANUFACTURE THEREOF - Embodiments of a gas turbine engine including a lift-off finger seal are provided, as are embodiments of a lift-off finger seal and embodiments of a method for the manufacture thereof. In one embodiment, the gas turbine engine includes an engine housing having low and high pressure cavities, a shaft rotatably mounted in the engine housing, and a lift-off finger seal. The lift-off finger seal includes an finger seal backing spring and an aerodynamic foil. The aerodynamic foil extends around the outer circumference of the shaft and is configured to expand radially outward in response to aerodynamic forces generated during rotation of the shaft. The finger seal backing spring resiliently biases the aerodynamic foil toward the shaft, deflects to accommodate the outward radial expansion of the aerodynamic foil, and forms an annular seal around the aerodynamic foil to impede pressurized airflow from the high to low pressure zone. | 06-13-2013 |
| 20130170980 | Polymer Material and Seals Formed Thereof for High Pressure Pump Applications - A seal is formed of a material including a crosslinked fluoropolymer. The seal substantially prevents leaks in a high pressure pump. | 07-04-2013 |
| 20130202433 | SEAL ASSEMBLY FOR TURBINE COOLANT PASSAGEWAYS - A seal assembly for use with a turbine having a rotor and at least one turbine blade facilitates the use of a wire seal with seal plate segments. The seal assembly includes a plurality of seal plate segments and a plurality of retainers disposed on a rotor flange on the rotor. A seal member is disposed between the retainers and the seal plate segments. The seal assembly includes at least one attachment member disposed through the rotor flange that limits radial displacement of the seal plate segments. | 08-08-2013 |
| 20130209251 | SEAL ARRANGEMENT ALONG THE SHAFT OF A LIQUID RING PUMP - A first bore is formed in a liquid ring pump. A shaft is in the first bore. A second bore is formed in the pump and is axially inward of the first bore. A first and second seal are in the second bore and around the shaft. The second seal is axially outward of the first seal. The second seal is free of an abutment axially outward of it and abutting up against it. | 08-15-2013 |
| 20130216377 | INDUCED DRAUGHT FAN - An induced draught fan, including: a motor, the motor including a shaft; a volute; and a wind wheel. The volute is provided with an air intake and an air outlet. The wind wheel is arranged inside the volute. The top of the volute is provided with a through-hole. The shaft of the motor passes through the through-hole and is connected to the wind wheel. A seal ring is arranged on the volute corresponding to the through-hole. An outer side of the seal ring is provided with an annular groove. The volute is embedded in the annular groove. The middle of the seal ring is provided with a center hole. The middle of the side wall of the center hole is provided with a ring-like convex edge. The shaft passes through the center hole and contacts with the ring-like convex edge. | 08-22-2013 |
| 20130230393 | SHAFT SEAL MECHANISM - An inner wall surface of a low-pressure-side side plate opposite to a lateral surface of a thin plats is formed along a direction crossing an axial direction of a rotating shaft such that a gap between the inner wall surface and the thin plate gradually decreases from a radially inner side toward a radially outer side of the low-pressure-side side plate. | 09-05-2013 |
| 20130236305 | SEALING DEVICE AND GAS TURBINE HAVING THE SAME - In a sealing device which seals between an outside space between an outer side in the radial direction of an external diffuser which has a tubular shape and forms an exhaust channel through which combustion gas rotating a rotor of a gas turbine passes in the inner side in the radial direction and an outside member which is disposed outside the external diffuser with an interval between them in the radial direction, and the exhaust channel by an end of the external diffuser, a first seal plate group and a second seal plate group in which a plurality of seal plates, which extend to the outer side in the radial direction from the end of the tubular external diffuser and reach the outside member, are laminated in contact with each other, and a spacer which maintains the first seal plate group and the second seal plate group with an interval in an axial direction in which a rotational axis of the rotor extends are provided. | 09-12-2013 |
| 20130259679 | DRY GAS SEAL ASSEMBLY - A seal assembly forms a barrier between a compressor's interior and exterior regions. The seals assembly includes a primary seal stage and a secondary seal stage. The primary seal stage is formed of materials chosen to effectively block flow of gas through the seal assembly. The secondary seal stage is formed of materials chosen to survive a failure of the primary seal stage. | 10-03-2013 |
| 20130259680 | SHAFT SEALING DEVICE, AND ROTARY MACHINE EQUIPPED THEREWITH - A shaft sealing device and a rotary machine equipped therewith are provided with a sealing body configured by stacking a plurality of thin sealing pieces; and a low-pressure-side side sealing plate in which a plate surface facing the low-pressure side is pressed against an inner wall surface of the housing facing the direction of the axis by means of the pressure of a fluid applied from a high-pressure side to the low-pressure side. A protrusion for blocking a downward flow toward the inside of the low-pressure-side side sealing plate in the radial direction along the low-pressure side of the sealing body is formed on the inside of the low-pressure-side side sealing plate in the radial direction, and a communication path for guiding the downward flow blocked by means of the protrusion to a low-pressure-side region is formed on the housing. | 10-03-2013 |
| 20130272872 | SHAFT SEALING SYSTEM FOR STEAM TURBINES - A shaft sealing system and method are disclosed for a high or intermediate pressure turbine section having a rotating member including a shaft and a stationary member surrounding the rotating member and defining a steam flow path. The shaft sealing system comprises at least one seal disposed about each of a first end and a second end of the shaft; and a connection line for conducting steam from the first turbine section to a downstream portion of the turbine. The downstream portion of the turbine is one of a low pressure section and a condenser, and has a lower pressure than both of the first turbine section and ambient pressure conditions. | 10-17-2013 |
| 20130294910 | WASTE WATER PUMP - A waste water pump includes an impeller ( | 11-07-2013 |
| 20130302160 | SEALING ARRANGEMENT FOR A FLOW MACHINE - The present invention relates to a sealing arrangement for a flow machine. The sealing arrangement of the present invention is applicable for sealing bearing arrangements of centrifugal pumps, mixers, blowers etc. The present invention is especially applicable in sealing a bearing assembly including two angular contact ball bearings used in back-to-back configuration. The present invention relates especially to a baffle arranged between the bearing and the bearing housing, the baffle leaving a gap between itself and the inner bearing ring for the oil to flow from the bearing to the oil channel, and from the oil channel via a groove back to the oil chamber. | 11-14-2013 |
| 20130323049 | STRESS-RELIEVED WIRE SEAL ASSEMBLY FOR GAS TURBINE ENGINES - A sealing assembly for use in a gas turbine engine having a disk arranged relative to an axis, the assembly including a circumferential groove defined in the disk and an annular wire seal positioned at least partially within the groove. The groove includes a first sidewall, a base portion adjoining the first sidewall, and a second sidewall adjoining the base portion opposite the first sidewall, wherein the second sidewall is angled in a range greater than 0° and less than 90° with respect to the axis. | 12-05-2013 |
| 20140086741 | TURBOMACHINE HYBRID LIFT-OFF FACE SEAL - An example of a turbomachine seal includes, among other things, a sealing member configured to be influenced by both hydrostatic and hydrodynamic forces when providing a seal. | 03-27-2014 |
| 20140099200 | FAN STRUCTURE - A fan structure includes a rotation module, a fixing shaft and an impeller, the rotation module comprises a coupling base, a bearing and a sealing member. The bearing comprises an axial hole, an outer ring wall and a through hole, a slot is recessed from the outer ring wall, the through hole communicates with the slot and the axial hole, and the slot is sealed by the sealing member to form an oil storage space. The fixing shaft penetrates the axial hole, and the through hole communicates with the axial hole and the oil storage space. When the rotation module rotates, lubricants in the oil storage space can flow from the through hole to the axial hole for lubricating the fixing shaft and the axial hole. When the rotation module stops, lubricants in the axial hole reflow to the oil storage space via the through hole to avoid loss. | 04-10-2014 |
| 20140127012 | OIL DEFLECTOR - An oil deflector includes a segment array extending radially from a sleeve portion defining a longitudinal axis and configured for mounting on a shaft. The segment array includes a plurality of segments arranged circumferentially relative to the longitudinal axis and defines at least one oil diverting feature configured to create a pressure differential proximate the segment array or across a surface of the segment array during rotation of the oil deflector about the longitudinal axis. The segment array may define an oil diverting feature configured as a radially tapered peripheral surface, an axially inclined annular surface, at least one slot inclined relative to an annular surface of the array, and/or a combination of these configured to divert oil axially and/or radially from the oil deflector during rotation by the shaft in use. | 05-08-2014 |
| 20140147271 | Pressure Seal With Non-Metallic Wear Surfaces - A gas turbine engine has a pair of components having a high-pressure chamber on one side, and a low pressure chamber on an opposed side. A three-sided seal has one side in sealing contact with each of said components. A third side is associated with a third component. At least one non-metallic wear surface is positioned between one of the three sides of the seal and its respective component. | 05-29-2014 |
| 20140169960 | FUEL PUMP - There is provided a fuel pump ( | 06-19-2014 |
| 20140271177 | SEAL FOR A CENTRIFUGAL PUMP - A seal for use in a centrifugal pump, the pump having a stationary pump casing, a stationary plate and an axially adjustable side liner, is disclosed. The seal includes a base having an inner surface and an outer surface. A band portion extends from the base and a retainer member extends from the band portion. The retainer member is spaced apart from the base and oriented for positioning against a groove formed in the axially adjustable side plate liner of the centrifugal pump. | 09-18-2014 |
| 20140356160 | MECHANICAL SEAL - A mechanical seal is disclosed having a rotatable sealing face and a stationary sealing face that are in opposed relation and arranged to be urged, into contact to form a seal. One of the sealing faces is mounted on a support assembly that includes a biasing device operative to move that sealing face into contact with the other sealing face. In one form of the invention, the biasing device comprises one or more resilient members that in use are deformed to provide the biasing force. In a second form of the invention, the support assembly forms part of a fluid barrier of the seal and the biasing device is fluid impervious and forms part of the barrier. In a third form of the invention, the biasing device is exposed to fluid pressure in the chamber and the biasing force increases on increasing the fluid pressure in the chamber. | 12-04-2014 |
| 20140369832 | INTERNALLY COOLED SEAL RUNNER - A contact seal assembly for a shaft of a gas turbine engine includes a seal runner adapted to be connected to the shaft and rotatable relative to a carbon ring. The seal runner includes concentric inner and outer annular portions radially spaced apart to define at least one internal fluid passage between the inner and outer annular portions of the seal runner. | 12-18-2014 |
| 20150050141 | PASSIVE SHUTDOWN SEALING DEVICE FOR A SHAFT SEALING SYSTEM OF A REACTOR COOLANT PUMP SET - This invention relates to a passive shutdown sealing device ( | 02-19-2015 |
| 20150078893 | SEAL ARRANGEMENT FOR A TURBOMACHINE AND PROCESS FOR THE PRODUCTION THEREOF - The present invention relates to a process for producing a seal arrangement ( | 03-19-2015 |
| 20150110621 | FINGER-FOIL SEALS AND GAS TURBINE ENGINES EMPLOYING THE SAME - Embodiments of a gas turbine engine including a finger-foil seal are provided, as are embodiments of a finger-foil seal. In one embodiment, the finger-foil seal includes an aerodynamic foil having a generally annular body through which a first opening is formed. A finger seal retention structure is disposed around the aerodynamic foil. A finger seal backing spring is coupled to the finger seal retention structure and extends radially inward therefrom to contact an outer circumference of the aerodynamic foil. A first anti-rotation pin extends radially from the finger seal retention structure and into the first opening formed in the aerodynamic foil to inhibit rotation of the aerodynamic foil during operation of the finger-foil seal. | 04-23-2015 |
| 20150132126 | ADJUSTABLE LABYRINTH SEAL - An adjustable seal and method for varying a radial distance between the adjustable seal and a rotor of a turbomachine are provided. The adjustable seal may include a first annular member defining a plurality of radial channels, and a second annular member defining a plurality of slots at least partially extending therethrough. The second annular member may be concentric with the first annular member and configured to rotate relative to the first annular member. The adjustable seal may also include a plurality of seal segments interposed between the first annular member and the second annular member. Each seal segment of the plurality of seal segments may be slidably disposed in a respective radial channel of the plurality of radial channels and may have an axial projection slidably disposed in a respective slot of the plurality of slots. | 05-14-2015 |
| 20160131150 | SEALING MECHANISM AND TURBO REFRIGERATOR - A sealing mechanism ( | 05-12-2016 |
| 20160146029 | SEALING BUSH CARRIER FOR A STEAM TURBINE AND STEAM TURBINE - A sealing bush carrier for a steam turbine, the steam turbine at least having a turbine rotor and a turbine housing, whereby the sealing bush carrier is arranged between a shaft of the rotor and the housing. The sealing bush carrier includes at least two hollow passages which extend from the rotor-facing part of the sealing bush carrier to the housing-facing part of the sealing bush carrier and are constructed such that they can be assigned to likewise hollow openings in the housing for an extraction of steam of the turbine through the passages of the sealing bush carrier into the openings of the housing. A steam turbine has a rotor with a shaft, a housing and a sealing bush carrier of this sort. | 05-26-2016 |
| 20160153302 | TURBINE WHEEL COVER-PLATE MOUNTED GAS TURBINE INTERSTAGE SEAL | 06-02-2016 |
| 20160169040 | SECONDARY SEALING SYSTEM | 06-16-2016 |
| 20160169041 | DEVICE FOR PROTECTING AGAINST OIL LEAKS TOWARDS THE ROTORS OF A TURBOMACHINE TURBINE | 06-16-2016 |
| 20160376904 | SEGMENTED NON-CONTACT SEAL ASSEMBLY FOR ROTATIONAL EQUIPMENT - An assembly is provided for rotational equipment. The assembly includes a circumferentially segmented stator and a rotor radially within the stator. The assembly also includes a seal assembly configured for substantially sealing a gap radially between the stator and the rotor. The seal assembly includes a carrier and a non-contact seal seated with the carrier. The carrier includes a plurality of discrete carrier segments circumferentially arranged around the non-contact seal. | 12-29-2016 |
| 20220136447 | Intershaft Seal Assembly with Pressure-Balanced Translatable Carrier - An intershaft seal assembly for use between a rotatable outer structure and an inner structure within a turbine engine is presented. The assembly includes a primary sealing ring, a translatable carrier, a secondary sealing ring(s), a lower-pressure chamber, a higher-pressure chamber, a first channel(s), and a second channel(s). The primary ring is disposed within and extends from a circumferential groove about the carrier so as to sealingly engage the rotatable outer structure. The primary ring rotates within the groove and with the rotatable outer structure. Each secondary ring is interposed between the carrier and the inner structure. The carrier slidingly contacts the secondary ring(s). The lower-pressure chamber is generally defined by the carrier and the inner structure adjacent to a higher-pressure side. The higher-pressure chamber is generally defined by the carrier and the inner structure adjacent to a lower-pressure side. Each first channel traverses the carrier so that a gas from the lower-pressure side may enter the lower-pressure chamber. Each second channel traverses the carrier so that a gas from the higher-pressure side may enter the higher-pressure chamber. The sum of the translation-resistant forces (F | 05-05-2022 |
| 20220136517 | SEALING DEVICE AND INTEGRATED PUMP - A sealing device includes a plurality of non-contact seals provided along a sealed shaft; a contact seal provided on at least one of two sides of the plurality of non-contact seals; an injection part that supplies purge gas into a first space of spaces arranged in an axial direction of the sealed shaft, the spaces being between the plurality of non-contact seals and the contact seal; and a collector that collects the purge gas from a second space of the spaces between the plurality of non-contact seals and the contact seal, the second space being positioned to be next to the first space in the axial direction. | 05-05-2022 |
