Entries |
Document | Title | Date |
20090092477 | ECONOMIZER FOR AIR CONDITIONING SYSTEM OR THE LIKE - Used in a thermal circulation system in which a fluid cooling agent is circulating in proper order through a compressor, a condenser, a capillary tube/expansion valve and a evaporator, an economizer is disclosed to include an enclosed vane wheel set in between the condenser and the evaporator and rotatable by the fluid cooling agent, two sealing structures mounted in the housing of the enclosed vane wheel to seal the gap between the housing and shaft of the enclosed vane wheel, and a cooling fan fixedly mounted on the shaft of the enclosed vane wheel outside the housing and rotatable with the shaft and the vanes at the shaft to cause currents of air toward the condenser for carrying heat away from the condenser. | 04-09-2009 |
20090142180 | CIRCUMFERENTIAL SEALING ARRANGEMENT - A circumferential sealing arrangement is disclosed herein. The circumferential sealing arrangement includes a structure operable to rotate about an axis and having a first surface facing radially outward. The circumferential sealing arrangement also includes a static housing circumscribing the rotatable structure. The circumferential sealing arrangement also includes at least one seal element connected to the static housing and having a second surface facing radially inward. The circumferential sealing arrangement also includes a seal runner rotatable with the structure and having a third surface facing radially outward. The third surface cooperates with the second surface to form a circumferential seal between the static housing and the rotatable structure. A radial gap is defined between the first surface of the rotatable structure and a fourth surface of the seal runner facing radially inward and opposing the first surface. The circumferential sealing arrangement also includes at least one resilient member disposed in the radial gap and operable to radially compress in response to a change in size of the radial gap to limit hoop stresses being generated in the seal runner. | 06-04-2009 |
20090169358 | WATER LUBRICATED LINE SHAFT BEARING AND LUBRICATION SYSTEM FOR A GEOTHERMAL PUMP - The present invention provides a water lubricated line shaft bearing assembly, comprising an outer annular steel shell and an inner layer made of low friction material attached to the outer shell, the inner layer having a non-uniform thickness which is formed with wall portions of increased thickness defining a plurality of shaft engaging portions and with wall portions of reduced thickness defining a plurality of lubricant passages. The shaft engaging portions are capable of being journalled on a line shaft adapted to drive a downhole geothermal production pump and the steel shell is engageable with an inner wall of a lubrication tube vertically extending through a water column through which pumped geothermal fluid is delivered, lubrication water bled from the pumped geothermal fluid being used to supply lubrication water through the lubricant passages. The steel shell has sufficient compressive strength to withstand the stress imposed by the high rotational speed of the line shaft of the geothermal production pump. The low friction material of the inner liner allows solid debris present or entrained in the lubrication water to slide over the inner line. Solid debris is prevented from accumulating due to the presence of the passages through which the lubrication water flows. | 07-02-2009 |
20090220330 | VAPOR PHASE LUBRICATION SYSTEM - A method and system for carrying out vapor-phase lubrication of a component, such as a bearing for example, is disclosed herein. The method and apparatus can be applied to a turbine engine. The method includes the step of directing a first stream of fluid containing atomized lubricant to the component at a first velocity. The system provides a first fluid injection system for performing the first step. The system also provides a lubricant injection system communicating with the first fluid injection system upstream of the sump cavity and operable to atomize lubricant in the first stream. The method also includes the step of directing a second stream of fluid at a second velocity less than the first velocity to the component. The second stream is for controlling a temperature of the component. The system provides a second fluid injection system for performing the second step. Both of the directing steps are carried out concurrently. | 09-03-2009 |
20090252595 | NON-CONTACTING FACE SEALS AND THRUST BEARINGS - Apparatus is for spacing two relatively rotatable facing surfaces in use by entraining gas between the surfaces. The apparatus includes a first portion defining a generally frusto-conical surface, a second portion including at least one flat surface disposed on a carrier, the flat surface being located adjacent the first portion so that the generally frusto-conical surface and the flat surface face each other and define at least one point of closest engagement between the surfaces, with diverging gaps extending between the surfaces on either side of a plane which contains the point or points of closest engagement and which extends generally orthogonal to the direction of relative rotation, and a device for biasing the flat surface towards the frusto-conical surface to maintain a gap between the surfaces within a predetermined dimensional range. The carrier includes a plurality of portions releasably connected together. | 10-08-2009 |
20090290975 | Oil-Sealing Arrangement for Cooling Fan - An oil-sealing arrangement for cooling fan includes a fan housing provided with a central hollow pipe having a hollow bearing fitted therein in a clearance fit relation, and the bearing having a front end formed into a forward tapered projection; and a blade carrier including a fitting cylinder with a rearward tapered projection. When the fitting cylinder is extended into the hollow pipe on the fan housing, the rearward tapered projection and the forward tapered projection together define a seeped oil chamber between them. When the cooling fan operates, lubricating oil seeped out of the hollow pipe along the bearing is recovered in the seeped oil chamber and flows back to the hollow pipe via the clearance between the bearing and the hollow pipe without being centrifugally thrown out of the cooling fan, allowing the cooling fan to have extended usable life. | 11-26-2009 |
20100104418 | GAS TURBINE - A gas turbine having a rotor which includes a turbine rotor, a shaft and a compressor rotor, the turbine rotor having at least one rotor disk and a rotor cone leading from the or a rotor disk to the shaft, the downstream end of the shaft being rotatably supported in a bearing having a bearing chamber, the interior space of the shaft being designed as a flow channel for bearing-chamber sealing air, and the space surrounding the rotor cone upstream of the same being designed as a flow space for cooling air is disclosed. In the region of the rotor connection, the shaft exhibits an expanded portion, at whose upstream end, openings are provided to allow cooling air to enter, and, at whose downstream end, openings are provided to allow cooling air to exit into the space between the bearing chamber and the rotor cone, a wall separating the streams of the cooling air and of the sealing air in the shaft interior from one another. | 04-29-2010 |
20100135771 | CENTRIFUGAL COMPRESSOR WITH IMPROVED LUBRICATION SYSTEM FOR GEAR-TYPE TRANSMISSION - A centrifugal supercharger includes a case presenting a compressor chamber and a transmission chamber. An impeller in the compressor chamber is mounted to a shaft that extends into the transmission chamber. The impeller shaft is drivingly connected to a power input shaft by intermeshing gears provided on the shafts. A portion of the transmission chamber defines a fluid reservoir in which lubrication fluid is held. The intermeshing gears, as well as the bearing assemblies supporting the shafts, are located outside the fluid reservoir portion of the transmission chamber. A rotatable fluid-propelling element partly submerged in the lubrication fluid contained within the reservoir portion ensures that sufficient but not excessive lubrication fluid is supplied to the intermeshing gears and the bearing assemblies. A dedicated lubricant reserve system ensures that the required operating level of fluid is provided to, and maintained in, the reservoir portion. | 06-03-2010 |
20100172739 | BEARING AND RETENTION MECHANISMS - An exemplary locating mechanism includes a bearing outer race ( | 07-08-2010 |
20100196139 | LEAKAGE FLOW MINIMIZATION SYSTEM FOR A TURBINE ENGINE - A sealing system is applied to the interface between a stator and a rotor in a turbine engine to minimize fluid leakage across the interface. One interface can be defined between portions of neighboring rotor disks and a stator. The sealing system includes one or more rows of flow guides, such as airfoils, provided on the rotor disk near the upstream end of the interface. These flow guides can impart tangential velocity on the leakage flow. One or more undulating seal structures can be connected to the stator downstream of the flow guides. These undulating seals can have a periodic waveform conformation. The undulating seals can create unsteadiness in the flow and recirculation of the leakage flow, which causes losses. The sealing system can also include other types of seals, such as labyrinth seals and brush seals, to further create a tortuous path for any leakage flow. | 08-05-2010 |
20100196140 | DEVICE FOR INHIBITING THE FLOW OF OIL ALONG A ROTATING SHAFT - An oil control device inhibits the flow of oil along a shaft ( | 08-05-2010 |
20100296917 | VACUUM PUMP - A vacuum pump ( | 11-25-2010 |
20110014030 | ROTATING MACHINE AND ADDITIONAL RING - The present invention aims at providing a technique for providing a stepped structure separately to a rotating shaft in a later step of assembly for preventing oil leakage from a bearing box. To this end, the rotating machine of the present invention includes a rotating shaft having a rotating member, a bearing device including a rotating shaft insertion hole larger in diameter than the rotating shaft, an oil thrower provided between an outer circumferential portion of the rotating shaft insertion hole and the rotating shaft, and an additional ring attached to the rotating shaft between the oil thrower and the rotating shaft such as to protrude in a radial direction of the rotating shaft. | 01-20-2011 |
20110150630 | WATER PUMP FOR VEHICLE AND BEARING STRUCTURE - A water pump for a vehicle includes: a pump housing; a drive shaft; an impeller fixed on a first end portion of the drive shaft; a pulley including a first radial extension portion and a first axial extension portion; a seal ball bearing which is disposed between an inner circumference surface of the first axial extension portion and an outer circumference surface of a cylindrical portion, and which includes seal members; and a plate member disposed between an end portion of the seal ball bearing which is on an impeller side and a stepped portion, and arranged to cover an end surface of the seal ball bearing which is on the impeller side, the plate member having a thickness smaller than a thickness of the stepped portion, and including a separating portion which is separated from a portion rotating relative to the plate member. | 06-23-2011 |
20110255955 | CHARGING DEVICE - A charging device may include a turbine housing and a bearing housing. The bearing housing may have a bearing arrangement for a shaft carrying a turbine wheel and a compressor wheel. A gasket may be arranged by metal-to-metal connection between a radially orientated flat surface of the turbine housing and a radially orientated flat surface of the bearing housing. The gasket may be resilient. | 10-20-2011 |
20120003075 | LUBRICATION DEVICE OF TURBOCHARGER OF ENGINE FOR VEHICLE - A first turbocharger comprises a first center housing and a first return passage. A second turbocharger comprises a second center housing and a second return passage. The first return passage joins the second return passage at a junction. The length of the second return passage from the second center housing to the junction is longer than that of the first return passage from the first center housing to the junction. A bellows-shaped vibration absorption portion is provided at the second return passage. The first return passage comprises a first upstream return passage and a first downstream return passage, and the first upstream and downstream return passages are connected to each other via the flexible hose. | 01-05-2012 |
20120034067 | Turbocompressor and System for a Supercritical-Fluid Cycle - A turbocompressor for use with a process fluid and including an axial expansion turbine for expanding the process fluid and a centrifugal compressor for compressing the process fluid. The turbine and compressor share a common shaft, all of which can be housed by a common housing that encloses sealed spaces. The axial expansion turbine has a rotor located between two main bearings, and the centrifugal compressor includes an impeller mounted to one end of the shaft. In one embodiment, the main bearings are lubricated by a portion of the process fluid so that the only fluid in the sealed spaces is the process fluid. The turbocompressor can be used in a power-cycle system that includes a heat source and, optionally, an electrical generator. | 02-09-2012 |
20120076639 | Shaft and Turbine Wheel Assembly - An assembly for a turbocharger includes a shaft with an axial extension and a shaft-side groove portion, the shaft-side groove portion defined at least in part by a radial height; a turbine wheel with a counter bore and a turbine wheel-side groove portion, the turbine wheel-side groove portion defined at least in part by a radial height; and, upon receipt of the axial extension of the shaft by the counter bore of the turbine wheel, a groove formed by the shaft-side groove portion and the turbine wheel-side groove portion, the groove configured to seat a seal component. Various other examples of devices, assemblies, systems, methods, etc., are also disclosed. | 03-29-2012 |
20120163956 | Pressure Compensating Wet Seal Chamber - Some embodiments of the invention provide a pump including a pump chamber, a shaft at least partially positioned in the pump chamber, an impeller coupled to the shaft, and a seal coupled to the shaft. The pump also includes a wet seal chamber. The wet seal chamber can include a separator with a disc and a resilient member. The disc includes one or more slots through which fluid pressure from the pump chamber is transferred to the resilient member. The wet seal chamber substantially prevents fluid from contacting the seal in order to prolong a life of the seal. | 06-28-2012 |
20120183388 | SYSTEMS AND METHODS FOR SWIRL BRAKE TAPERING - A centrifugal compressor is disclosed. The centrifugal compressor comprises a first duct configured to receive a process gas, an impeller connected to the first duct and configured to compress the process gas, wherein the impeller has an outer surface, a first seal comprising, a first plurality of swirl brakes configured to have a tooth shape to reduce the inlet seal swirl of a flow of the process gas at an entrance to the first seal, wherein each swirl brake is disposed at a leading edge of the first seal and is configured to have a gap between the first plurality of swirl brakes and the outer surface of the impeller seal. A seal including a plurality of swirl brakes for reducing an inlet swirl and a method of manufacturing such a seal are disclosed. | 07-19-2012 |
20120251293 | FULLY ENCLOSED SEAL AND BEARING ASSEMBLY FOR BETWEEN-BEARING PUMPS - A bearing and seal assembly for supporting and sealing a terminating outboard end of an impeller shaft in a centrifugal pump such as a between-bearings pump includes only one seal but provides advantages typical of a dual-seal assembly, including barrier fluid protection against seal damage caused by abrasive slurries, and protection against leaking of toxic process fluid to atmosphere. A bearing housing sealed to the pump's pressure casing encloses the seal, bearing, and terminating impeller shaft end. Leakage of process fluid past the seal is prevented by a lubricating, pressurized, cooled barrier fluid which is circulated through the bearing housing by an external pump and/or by an internal, shaft-driven impeller. Because the impeller shaft terminates within the bearing housing and does not penetrate to atmosphere, the barrier fluid is contained within the bearing housing and a second seal is not required. | 10-04-2012 |
20120251294 | Shaft Seal for Steam Turbines - A steam turbine with a shaft seal is provided. The shaft seal steam barrier is supplied with a slight excess pressure. In order to avoid complex additional devices necessary for liquefying the water vapor once again, a condensation chamber, which is sealed from the surrounding air as well as from the steam barrier chamber with brush seals, is provided between the steam barrier chamber and the surrounding air. The condensation chamber is constructed in such a manner that the heat, developing in the interior thereof, is discharged to the outside. | 10-04-2012 |
20130115049 | ASSEMBLY COMPRISING A SHAFT SEAL - A shaft seal includes more than one sealing module, at least one fluid supply and a fluid discharge, and a main seal which is subject to a greatest partial pressure difference. A second main seal is a radial double seal, which includes two gas seals, each gas seal having a rotating sealing surface and a stationary sealing surface, wherein the two sealing surface pairs are located opposite each other in a sealing plan, and wherein the two sealing planes have substantially radial extension to the shaft. | 05-09-2013 |
20130156547 | Adaptive Eductor System - An apparatus is provided having a first zone with a fluid flow at a first pressure, and a second zone with a fluid flow at a second pressure. A sump cavity is provided in fluid communication with the first zone and a sump vent. An eductor system may be provided with a fluid flow path therethrough and in fluid communication with the second zone and the sump vent. The eductor system may be provided with an altitude sensing valve and may also be provided with gage pressure sensing valve. The eductor system may further be provided with a second gage pressure sensing valve and may also be provided with an orifice plate. The gage pressure sensing valves may react to the gage pressure of the second zone. | 06-20-2013 |
20130223985 | GAS TURBINE - A gas turbine includes: a cooling air pipe disposed at a downstream side of a rotor main body without contacting with the rotor main body and configured to feed cooling air into a cooling air main passage of the rotor main body; a bearing downstream end shaft seal annularly disposed at an outer circumferential side of the rotor main body and at a downstream side of a bearing which rotatably supports the rotor may body; and a collecting flow passage member having a leaked air collecting flow passage that guides the cooling air, which is leaked from the bearing downstream end shaft seal to the bearing side, into an exhaust flow passage through which a combustion gas passing through a final blade stage flows. | 08-29-2013 |
20130280039 | Wind turbine with oil lubrication - Lubrication method and wind turbine comprising a rotor with a hub supported by a main bearing with two opposite bearing races coaxially spaced by rotatably fitted bearing rollers in a lubrication area which is sealed by oil sealing rings between the bearing races. The lubrication area comprises one or more oil inlets operatively connected to an oil supply, and one or more oil outlets. The vertical distance between the outlet(s) and the lowest point of the lubrication area is 0-0.2 times the inner diameter of the outer bearing race. The inlet (s) and the oil supply are configured to supply an oil flow not exceeding the drain capacity of the one or more outlets. | 10-24-2013 |
20130315709 | PUMP, SEPARATION DEVICE FOR A PUMP, AND ROTOR SHAFT FOR A PUMP - Disclosed is a pump having a pump rotor rotatably supported about an axis of rotation in a pump stator. In this respect, the pump rotor is designed and is arranged above a rotor shaft in a shaft bearing such that a lubricating film of a lubricating fluid formed from the pump fluid can be formed in a lubricating ring gap between the rotor shaft and the shaft bearing. In accordance with the invention, a separation device is provided at the rotor shaft by which a predefinable quantity of the ingredient can be separated from the pump fluid by means of a centrifugal force in the operating state for providing the lubricating fluid. | 11-28-2013 |
20130330171 | Ring Seal Midplate - A seal assembly for a rotary machine which includes a rotor assembly having a rotatable rotor shaft is disclosed. The seal assembly may comprise a spacer, a seal plate, a ring seal, and a ring seal midplate. The spacer, the seal plate, and the ring seal midplate may be rotatable with the shaft and extend outwardly from the shaft. The ring seal is free and provides a seal for a bearing compartment of the rotary machine. The ring seal midplate is not attached to the spacer or the seal plate during a hardface process which is applied to any component of the seal assembly. The ring seal midplate may be longitudinally located between the spacer and the seal plate and be radially spaced between the ring seal and the shaft. | 12-12-2013 |
20140169941 | FORWARD COMPARTMENT BAFFLE ARRANGEMENT FOR A GEARED TURBOFAN ENGINE - A baffle within a gas turbine engine includes a cylindrical flange with a multiple of holes at least partially therearound. | 06-19-2014 |
20140186158 | GAS TURBINE ENGINE SHAFT BEARING CONFIGURATION - A gas turbine engine includes a core housing that includes an inlet case and an intermediate case that respectively provide an inlet case flow path and an intermediate case flow path. A geared architecture is arranged within the inlet case. A shaft provides a rotational axis. A hub is operatively supported by the shaft. A rotor is connected to the hub and supports a compressor section. The compressor section is arranged axially between the inlet case flow path and the intermediate case flow path. A bearing is mounted to the hub and supports the shaft relative to one of the intermediate case and the inlet case. | 07-03-2014 |
20140193239 | TURBOMACHINE SHAFT SEALING ARRANGEMENT - A turbomachine with a rotary shaft supporting a turbine wheel is supported for rotation in a housing. The shaft extends through a bore in the housing and a bearing assembly being disposed in the bore. At least one end of the shaft has a primary seal and a secondary seal. The primary seal comprises a non-contact seal defined by an annular clearance between a first non-rotating seal element and a second seal element that rotates with the shaft. The primary seal is arranged to receive lubricating oil from the bearing assembly. An oil slinging feature is provided between the primary and secondary seals. | 07-10-2014 |
20140241857 | FLOW DIVERTER TO REDIRECT SECONDARY FLOW - An assembly for a gas turbine engine includes a seal and a flow diverter. The flow diverter is disposed adjacent the seal to direct a secondary gas flow that passes across the seal away from a rotor cavity such that the secondary gas flow travels back toward a main gas flow path of the gas turbine engine. | 08-28-2014 |
20140241858 | SEAL RING MOUNTING METHOD FOR TURBOCHARGER, AND TURBOCHARGER - It is intended to provide a seal ring mounting method for a turbocharger and a turbocharger with the seal ring, whereby the seal ring is less likely to be affected by other parts. An annular protrusion ( | 08-28-2014 |
20140248126 | INTER-MODULE FINGER SEAL - An assembly for a gas turbine engine includes a first module, a second module, and a finger seal. The second module is connected to the first module along a joint. The finger seal is connected to the first module at a fixed end and has a free end that cantilevers from the fixed end to contact the second module. The finger seal acts to seal the joint between the first module and second module from an ingestion gas flow of the gas turbine engine. | 09-04-2014 |
20140248127 | TURBINE ENGINE COMPONENT WITH DUAL PURPOSE RIB - An assembly for a gas turbine engine includes a component, a fairing, and a seal. The fairing is disposed adjacent to the component and defines a primary gas flow path. The fairing has a rib that is located outside of the primary flow path and extends from an outer surface of the fairing. The seal is disposed between the rib and the component. | 09-04-2014 |
20140248128 | SEALS FOR A CIRCUMFERENTIAL STOP RING IN A TURBINE EXHAUST CASE - A turbine seal system comprises an annular structural frame, a circumferential ring, a fairing and a seal. The circumferential ring is joined to the annular structural frame. The fairing is disposed within the annular structural frame and is engaged with the circumferential ring to limit circumferential rotation of the fairing with respect to the annular structural frame. The seal extends between the fairing and the circumferential ring. In one embodiment, the structural component comprises a ring-strut-ring turbine exhaust case. | 09-04-2014 |
20140255156 | NON-CONTACTING SEALS FOR GEARED GAS TURBINE ENGINE BEARING COMPARTMENTS - A gas turbine engine includes a fan, a compressor section, a combustor, and a turbine section. The engine also includes a rotating element and at least one bearing compartment including a bearing for supporting the rotating element, a seal for resisting leakage of lubricant outwardly of the bearing compartment and for allowing pressurized air to flow from a chamber adjacent the seal into the bearing compartment. A method and section for a gas turbine engine are also disclosed. | 09-11-2014 |
20140255157 | ANISOTROPIC BEARING SUPPORTS FOR TURBOCHARGERS - A rotating assembly for a turbocharger can include a center housing that includes a through bore having a central axis; a bearing cartridge positioned in the through bore where the bearing cartridge includes an outer race, an inner race and rolling elements disposed between the inner race and the outer race; an anisotropic member positioned in the through bore between the outer race of the bearing cartridge and a surface of the center housing where the surface defines at least part of the through bore of the center housing; and a shaft rotatably supported in the center housing by the bearing cartridge where the inner race is mounted on the shaft and the shaft is connected at one end to a compressor wheel and at another end to a turbine wheel. | 09-11-2014 |
20140271128 | Turbocharger Lubricant Turbine - An assembly for a turbocharger can include a shaft and turbine wheel assembly and a component that has a rotational axis and that includes a through bore for receipt of the component by the shaft of the shaft and turbine wheel assembly where the component includes an inner surface and an outer surface and one or more passages that extend between the inner surface and the outer surface, where the one or more passages are shaped to exert force on the component responsive to flow of fluid in the one or more passages and where the force rotates the component about the rotational axis. Various other examples of devices, assemblies, systems, methods, etc., are also disclosed. | 09-18-2014 |
20140301828 | FAN PERFORMANCE BY INCREASING EFFECTIVE BLADE HEIGHT IN A TOLERANCE NEUTRAL MANNER - The described embodiments relate generally to improving performance characteristics of a low profile fan. More specifically configurations having sloped fan blade edges are disclosed. By applying a gradual slope to each of the fan blades, performance of the fan can be increased without risking contact or rubbing between the fan blades and a fan housing. In some embodiments, the sloped fan blades can be configured to prevent contact when bearings of the fan include a certain amount of tilt play. | 10-09-2014 |
20140301829 | Engine Bearing Support - A turbofan engine comprises an engine case. A gaspath extends through the engine case. A fan has a circumferential array of fan blades. A fan case encircles the fan blades radially outboard of the engine case. A plurality of fan case vanes extend outward from the engine case to the fan case. A front frame assembly includes a plurality of vanes extending radially across the gaspath. A transmission couples a shaft to a fan shaft to drive the fan. A bearing assembly couples the shaft to the front frame assembly. A bearing support extends aftward and radially inward from the front frame assembly to the bearing assembly. | 10-09-2014 |
20140341710 | CENTRIFUGAL REFRIGERANT VAPOUR COMPRESSORS - A refrigerant compressor ( | 11-20-2014 |
20140348635 | OIL BAFFLE FOR GAS TURBINE FAN DRIVE GEAR SYSTEM - A turbine engine includes a housing supporting compressor and turbine sections. An epicyclic gear train includes a carrier, a sun gear and intermediate gears arranged about and intermeshing with the sun gear. The intermediate gears are supported by the carrier. A baffle is supported relative to the carrier and includes a lubrication passage near at least one of the sun gear and intermediate gears for directing a lubricant on at least one of the sun gear and the intermediate gears. A spray bar is external to the carrier and is in communication with the lubrication passage. The spray bar terminates near the sun gear for directing lubricant on the sun gear. | 11-27-2014 |
20140369811 | INTEGRATED TURBOCHARGER CASTING - A bearing housing, or integrated turbocharger housing, with the oil, and optionally air and water galleries, included as as-cast features, thereby avoiding the problems, design limitations and expense associated with conventional post-casting machining. The method of casting preferably uses lost foam casting, or a technique similar to lost foam casting but in which a ceramic shell is formed on the foam form prior to metal casting, but can use any of a variety of casting techniques or a combination of two or more techniques. | 12-18-2014 |
20150016959 | SEAL PLATFORM - A partial seal platform for mounting a seal and securing seal to a rotor or a casing including a first arcuate securing segment with a first securing notch for receiving a first securing ridge of rotor or casing; a second arcuate securing segment with a second securing notch for receiving a second securing ridge of rotor or casing; an arcuate coupling segment with a first flat ridge forming a first and second lateral notch on each side of the first flat ridge for receiving the first arcuate securing segment and the second arcuate securing segment; and an arcuate mounting segment including a second flat ridge forming a lateral notch on each side of second flat ridge for receiving first arcuate securing segment and second arcuate securing segment. | 01-15-2015 |
20150016960 | LINEAR GASKET FOR AN INTER-BLADE PLATFORM - A linear gasket for an inter-blade platform that presents a length, the gasket including a linear base for fastening to the inter-blade platform and a linear lip projecting from the linear base, the linear lip including a linear distal end portion configured to contact a pressure side wall or a suction side wall of a blade, a linear groove being formed between the linear base and the linear lip over at least a fraction of a length of the linear gasket. The linear distal end portion includes at least one linear slit extending over at least a fraction of the length of the gasket. | 01-15-2015 |
20150037139 | Turbocharger Air Bearing - An air bearing assembly includes a split bearing with a first portion and a second portion configured to join and form a female tapered section with distal ends of a larger diameter than a joining central portion. A shaft with a male section including distal ends of a larger diameter than a central portion mates with the female tapered section formed by the joined split bearing. In order to provide adequate lubrication, support, and cooling, one or more an passages in the split bearing fluidly communicates a supply of pressurized air to the shaft. The air pressure provides a cushion of air for the shaft to float on during operation. | 02-05-2015 |
20150063981 | DEVICE FOR SEALING BETWEEN THE COAXIAL SHAFTS OF A TURBOMACHINE - A device for sealing the coaxial shafts of a turbomachine includes an annular seal able to perform sealing by contact with the outer shaft, and a lubricating device to lubricate the region of contact between the annular seal and the outer shaft. | 03-05-2015 |
20150071762 | EXHAUST GAS TURBOCHARGER WITH TURBINE - A turbine for a supercharging device of an internal combustion engine may include a control device for performance control of the turbine. The control device may include at least one actuator, which is pivotably mounted about a pivot axis relative to a turbine housing. The actuator may have a bearing shaft, which is mounted in a bearing of the turbine housing. The bearing shaft may include at least one bearing sleeve, which is radially in contact with the bearing. | 03-12-2015 |
20150078886 | Sleeve Bearing for Turbocharging Device - A ball bearing sleeve is used in a turbocharging device. The ball bearing sleeve has one or more ball bearings that are designed to control loads that are applied to the sleeve in the x, y and z-directions. The ball bearing sleeve is designed to replace the “thrust bearing” that is typically the “weak link” in a turbocharging device, as well as the journal bearings. The sleeve is designed to include a cylindrical portion that includes one or more grooves for directing the flow of oil around the sleeve for cooling. An oil duct having access holes directs the flow of oil into the ball bearings. Sleeve device may be retro-fitted into an existing turbocharger, which originally had journal and thrust bearings. | 03-19-2015 |
20150086331 | BAUTEILSYSTEM EINER TURBOMASCHINE - A component system of a turbine engine including a first component segment and a second component segment configurable in a ring segment shape, so that at least one abutment surface of the first component segment and an abutment surface of the second component segment abut against each other; together, the first component segment and the second component segment including at least three overlapping elements for sealing a gap between the abutment surfaces. In the case of mutually abutting abutment surfaces, each overlapping element overlapping radially with the respective other component segment. At least two of the overlapping elements are configured on the first component segment, while at least one of the overlapping elements is configured on the second component segment. In the case of mutually abutting abutment surfaces, the overlapping element of the second component segment is axially configured between the overlapping elements of the first component segment. | 03-26-2015 |
20150093235 | Brush seal for a turbomachine - The present invention relates to a brush seal for a turbomachine, having a support ( | 04-02-2015 |
20150098797 | ROTARY SHAFT DEVICE AND VERTICAL SHAFT FLUID POWER GENERATOR - A rotary shaft device ( | 04-09-2015 |
20150098798 | BRUSH SEAL SYSTEM FOR SEALING A GAP BETWEEN COMPONENTS OF A THERMAL GAS TURBINE THAT MAY BE MOVED RELATIVE TO ONE ANOTHER - A brush seal system for sealing a gap between components of a thermal gas turbine that may be moved relative to one another includes a gas seal housing that receives at least one brush head of a brush seal and a support element by means of which a brush packet projecting from the brush head of the brush seal may be supported against flexing. The support element and the brush seal housing are embodied as separate components. The invention furthermore relates to a method for producing such a brush seal system and to a thermal gas turbine having such a brush seal system. | 04-09-2015 |
20150098799 | COMPONENT SUPPORT AND TURBOMACHINE - A component support of the turbomachine, in particular an aircraft engine, is described, which includes at least two essentially annular components on the stator side, which are in axial contact with each other and are preferably oriented coaxially to the machine axis, the first component having a plurality of radial, groove-like recesses, which are laterally overlapped by the second component with its projection-like bearing sections, and an uncontoured support ring surface section being provided between the adjacent bearing sections, a turbomachine also being described. | 04-09-2015 |
20150098800 | TURBOCHARGER ROTATING ASSEMBLY - A system can include a shaft and turbine wheel assembly that includes a seal portion; a bearing assembly that includes an outer race and rolling elements that rotatably support the shaft and turbine wheel assembly; a sleeve that includes an outer diameter and a through bore that includes a first inner diameter that accommodates an outer diameter of the outer race of the bearing assembly and a second, smaller inner diameter that accommodates an outer diameter of the seal portion of the shaft and turbine wheel assembly; and a center housing that includes a compressor side, a turbine side and a bore that includes a turbine side bore diameter that accommodates the outer diameter of the sleeve. | 04-09-2015 |
20150110600 | EXHAUST-GAS TURBOCHARGER - An exhaust-gas turbocharger ( | 04-23-2015 |
20150125264 | GAS TURBINE ENGINE LUBRICATION SYSTEM - A lubrication system for a gas turbine engine is disclosed. The lubrication system is configured to provide pressurized air and lubricant to a bearing sump of the gas turbine engine to cool and lubricate a bearing included in the bearing sump. | 05-07-2015 |
20150292345 | POWER TURBINE UNIT - A power turbine unit includes a turbine housing, an exhaust duct, a turbine wheel with blades positioned in the exhaust duct, a shaft rigidly connected to the turbine wheel and rotatably supported in the housing, and an oil sealing system. The oil sealing system includes a sealing arrangement positioned in the vicinity of the turbine wheel for preventing oil from escaping from the turbine housing along the shaft to the exhaust duct. The oil sealing system further includes a buffer gas duct that is arranged to supply exhaust gas from the exhaust duct to the sealing arrangement for pressurizing the sealing arrangement. | 10-15-2015 |
20150330442 | FLOATING BUSH BEARING DEVICE AND SUPERCHARGER INCLUDING THE SAME - An object is to provide a floating bush bearing device with excellent oscillation stability and small bearing loss. A floating bush bearing device which rotatably supports a rotation shaft includes: a bearing housing, a floating bush rotatably disposed between the rotation shaft and an inner circumferential surface of the bearing housing, in the bearing housing, and a bush side oil supply hole which is formed through the floating bush and is capable of supplying lubricating oil between the rotation shaft and the inner circumferential surface of the floating bush, the inner circumferential surface of the floating bush has a non-circular shape so that a gap portion is formed between the rotation shaft and the inner circumferential surface of the floating bush, the gap portion having a predetermined clearance or larger regardless of relative positions of the rotation shaft and the inner circumferential surface of the floating bush, and the bush side oil supply hole communicates with the gap portion. | 11-19-2015 |
20150337681 | SCUPPER CHANNELLING IN GAS TURBINE MODULES - A gas turbine module comprises a frame, a bearing support ring, a service line, and a scupper channel system. A service line is disposed through a radial passage of the frame and a service line port of the bearing support ring. The scupper line is disposed radially through a radial passage of the frame and is open to the scupper drain port. The scupper channel system is formed into a radially inner surface of the bearing support ring, and includes a collection portion in fluid communication with the scupper drain port. | 11-26-2015 |
20150337721 | TURBOCHARGER - A turbocharger assembly can include a shaft having a rotational axis where the shaft includes a turbine wheel that includes a hub portion; a bearing that includes an outer race, an inner race operatively coupled to the shaft, and rolling elements disposed between the inner race and the outer race where an inner radius of the outer race and an outer radius of the inner race define a radial gap; and a lubricant slinger disposed axially between the inner race and the hub portion of the turbine wheel where the lubricant slinger includes a surface that faces and slopes away from the radial gap. | 11-26-2015 |
20150354384 | BUMPER FOR SEALS IN A TURBINE EXHAUST CASE - A turbine seal system comprises a structural frame, a structural member, a seal and a bumper. The structural member is disposed opposite the structural frame. The seal extends between the structural frame and the structural member. The bumper is anchored to the structural frame or the structural member and extends toward a mid-region of the seal. In one embodiment, the structural frame comprises a ring-strut-ring turbine exhaust case. | 12-10-2015 |
20150369081 | AN OIL DRAIN FOR THE BEARING HOUSING OF A TURBOCHARGER - An oil drain ( | 12-24-2015 |
20160010500 | SUPERCHARGING DEVICE | 01-14-2016 |
20160032936 | Turbocharger Compressor Oil Deflector and Method - A turbocharger includes a two-piece thrust collar that includes inner and outer portions disposed around a rotatable shaft. The inner portion is engaged with a bushing disposed in and connected to the center housing by a retainer. The outer portion is disposed adjacent the inner portion along the rotatable shaft and connected to the rotatable shaft such that it rotates therewith. The outer portion forms an annular channel that extends in a radial direction relative to the rotatable shaft and peripherally around the shaft. An oil deflector is connected to the compressor back-plate and includes a base flange and a raised portion disposed at least partially over the annular channel. | 02-04-2016 |
20160040544 | SEAL ASSEMBLY FOR A BEARING ASSEMBLY IN A GAS TURBINE ENGINE - A seal assembly for a bearing assembly in a gas turbine engine includes a first annular runner disposed around a shaft rotatable about an axis defining an axial direction. The first annular runner is rotatable with the shaft about the axis. A seal element is spaced apart from the first annular runner and cooperating therewith to provide a gap seal. An annular lip axially extends from the gap seal to an open end. The lip is disposed at least partially around the seal runner. A second annular runner is disposed coaxially with and spaced radially apart from the lip. The second annular runner extends axially opposite to the lip so as to provide a tortuous path leading to the open end of the lip. A restrictor extends between the lip and the second annular runner to impede the passage oil through the tortuous path to the open end of the lip. | 02-11-2016 |
20160040591 | LUBRICANT FEED MECHANISM FOR TURBOCHARGER - Provided is a lubricant feed mechanism for a turbocharger, the mechanism that can reduce work of an oil pump while preventing an excessive supply of lubricant to a bearing part. The lubricant feed mechanism for a turbocharger, the mechanism of feeding lubricant to a bearing part that rotatably supports a shaft connecting a compressor wheel and a turbine wheel, includes: an oil supply passage that guides the lubricant fed under pressure from the oil pump to the bearing part; and a flow control valve provided to the oil supply passage for adjusting the amount of the lubricant by throttling the flow passage of the lubricant based on a pressure of the lubricant flowing through the oil supply passage. | 02-11-2016 |
20160053687 | ROTATING SHAFT SUPPORT STRUCTURE AND ROTARY MACHINE - A rotating shaft support structure and a rotary machine which can suppress the influence of lubricating oil on other devices. A rotating shaft support structure (journal bearing mechanism) and a rotary machine having the same includes: a bearing (journal bearing) which supports a rotating shaft, of which the surface facing the rotating shaft is supplied with lubricating oil by a direct lubrication method, and which is disposed inside a cavity holding a suction mechanism for recovering mist of the lubricating oil L leaking from the clearance between the rotating shaft and side plates; and at least one scattering prevention plate which is disposed on the side of an end surface of the bearing in the axial direction of the rotating shaft, on the vertically upper side of the rotating shaft. | 02-25-2016 |
20160115817 | TURBOMACHINE COMPRISING AN ELECTRIC CURRENT GENERATOR ALLOWING OIL INJECTION FROM THE INSIDE OF A ROTOR SHAFT - A turbomachine for an aircraft, comprising a rotor shaft, a turbomachine case, a lubricated bearing chamber, at least one bearing supporting the rotor shaft and being located in the bearing chamber, a lubrication device comprising oil injection means to inject oil into the bearing chamber, and oil supply means to supply oil to said oil injection means, and an electric current generator, comprising an armature driven by the rotor shaft and a field coil fixed to the turbomachine case. The generator has an orifice, which passes longitudinally through the generator from one end to the other, and the oil injection means pass through the orifice so that oil can circulate in the axial direction through the generator. | 04-28-2016 |
20160146046 | RADIALLY STACKED INTERSHAFT BEARING - An exemplary gas turbine engine includes a radially stacked intershaft bearing assembly. The assembly includes an outer stubshaft having outer and inner diameter surface portions disposed concentrically with respect to one another. The outer diameter surface portion is rotatably connected to a body of the engine, and the inner diameter surface portion is rotatably connected to an inner stubshaft of the engine, so as to provide a stacked configuration of the inner stubshaft, the outer stubshaft, and the body along a radial direction orthogonal to a longitudinal axis of the engine. | 05-26-2016 |
20190145421 | Shaft-Sealing Device | 05-16-2019 |