Entries |
Document | Title | Date |
20080213096 | SEALING ELEMENT FOR USE IN A FLUID-FLOW MACHINE - A sealing element for sealing a component gap with respect to a flow, in particular for use in a fluid-flow machine, specifically in a turbomachine is provided. In addition a fluid-flow machine is provided including such a sealing element for sealing a component gap. The sealing element includes a hollow profile enclosing a cavity. Arranged in the hollow profile are a first opening and a second opening, which are spaced apart from each other in the longitudinal direction of the hollow profile. The first opening is formed as an inlet opening for a cooling fluid into the cavity of the hollow profile, the second opening is formed as an outlet opening for the cooling fluid from the cavity of the hollow profile. With the sealing element arranged in a fluid-flow machine, the sealing element can consequently be internally cooled by means of the cooling fluid. Furthermore, the sealing element uses the pressure gradient occurring in the flow in the direction of flow to form a stable cooling fluid flow. | 09-04-2008 |
20080304970 | PUMP WITH ROTATING INLET - A device for use in a molten metal pump helps alleviate jams between a rotating rotor and stationary inlet. The device includes an inlet structure including one or more openings and a displacement structure that preferably includes one or more rotor blades. The inlet structure and displacement structure are connected to one another (preferably, but not necessarily, as a unitary piece), thus enabling them both to rotate. A pump including the device is also enclosed. The invention further includes a bearing surface for an impeller or for a device according to the invention, wherein the bearing surface includes grooves that help reduce molten metal build up between the bearing surface of the impeller or device and the bearing surface of a pump chamber. | 12-11-2008 |
20090053063 | COOLING FAN - A cooling fan includes a fan housing ( | 02-26-2009 |
20090097978 | FAN BLADE ASSEMBLY - A fan blade assembly includes a fan blade body, which has an axle housing downwardly suspending in a center accommodation open chamber thereof at the center and defining therein an axle hole and an inside annular flange in the axle hole, and a core shaft, which is inserted into the axle hole of the axle housing to support magnetic levitation rotation of the fan blade body and has a coupling groove extending around the periphery thereof and coupled to the inside annular flange of the axle housing with a gap left therebetween. | 04-16-2009 |
20090191060 | LUBRICATION HEATING SYSTEM AND WIND TURBINE INCORPORATING SAME - A wind turbine is provided having a gearbox containing a lubrication medium, a pump for circulating the lubrication medium. and a gearbox lubrication suction pipe for transporting the lubrication medium from the gearbox to the pump. A heater is in thermal connection to, at least a portion of, the gearbox lubrication suction pipe. This heater is used to heat the lubrication medium contained within the gearbox lubrication suction pipe to a temperature where damage to the pump is avoided. | 07-30-2009 |
20090238691 | Hydraulic Seal for a turbocharger - A hydraulic seal is defined between a rotating member such as a turbocharger shaft and a stationary member such as part of a bearing housing of a turbocharger. The members define a projecting annular disc that is received in an annular channel that is filled with hydraulic sealing fluid such as oil. Rotation of the rotary member applies a centrifugal force to the fluid thereby ensuring that it is retained in the channel between walls thereof and the disc. This annulus of fluid provides a hydraulic seal around the shaft between the bearing housing and the compressor or turbine housing. The oil is delivered into the channel from a supply in the rotary member. One of the walls of the channel serves as a weir whereby when the channel has an excess supply of oil is overflows the wall and passes the drain. The arrangement provides an effective seal against blow-by across the turbine end seal and restricts gas flow from the relatively high pressure regions of the compressor and turbine housings into the relatively low pressure area of the bearing housing. It also ensures that there is a continuous flow of oil across the seal so as to prevent it degrading in the high temperature environment. | 09-24-2009 |
20090297349 | H-shaped Vertical Axis Type Windmill Structure - An H-shaped vertical axis type windmill structure comprises a mainshaft on the top end of which is disposed a rotary shaft by a bearing. On the top and lower ends of the rotary shaft are disposed a support bracket and a support base, and in the middle of the rotary shaft is a connecting member. The support bracket, support base and the connecting member are connected to the connecting arms, and the other ends of the connecting arms are fixed to vertical blades. The connecting arms enable the blades to be vertically connected with the rotary shaft, and the mainshaft is not rotatable and serves as a stator of the generator structure. The vertically arranged straight and flat blades are easy to manufacture and fabricate and can be made of composite material for purpose of lightweight. | 12-03-2009 |
20090324410 | Roller bearing, retainer segment of roller bearing for supporting main shaft of wind-power generator, and main shaft support structure of wind-power generator - A tapered roller bearing ( | 12-31-2009 |
20100061855 | System for providing continuous lubrication to engine turbocharger shaft and bearing arrangement - The present invention relates to lubrication system for turbocharger(s) [TC] to ensure continuous lubrication of bearings and shaft of the turbocharger with lubricant retention during start and shut down of turbocharger-associated systems thereby enhancing the performance and turbocharger life. The shaft ( | 03-11-2010 |
20100129223 | Bearing device and wind turbine having said bearing device - A bearing device for a main shaft of a wind turbine includes a fixed hollow-cylindrical portion adapted for being mounted at a machine nacelle of the wind turbine. An inner diameter of the hollow-cylindrical portion is larger than the outer diameter of the main shaft such that a cavity is formed therebetween when the main shaft is inserted into the hollow-cylindrical portion. Furthermore a fitting provides a lubricating fluid to the cavity between the fixed hollow-cylindrical portion and the main shaft. | 05-27-2010 |
20100329869 | WIND TURBINE GENERATOR - A wind turbine generator that is capable of completely eliminating heater heating of lubricating-oil piping or that is capable of reducing the number of heater heating locations to the minimum requirement is provided. A wind turbine generator is provided with a lubricating system that circulates lubricating oil (L) in a lubricating-oil storage tank through lubricating-oil piping connected to a lubricating-oil pump, to lubricate a main bearing connected to the lubricating-oil piping by supplying the lubricating oil (L) thereto. This lubricating system is provided with a lubricating-oil recovery line that is formed when the lubricating-oil pump is stopped and in which the lubricating oil (L) falls naturally and is recovered in the lubricating-oil storage tank. | 12-30-2010 |
20110008169 | Device for sealing a rotating shaft - A device serves the purpose of sealing a rotating shaft for use under water. It exhibits face seals which seal a work area against the water. In accordance with the invention the face seals are constructed in the form of three slide ring pairs, wherein between the three slide ring pairs two areas ( | 01-13-2011 |
20110014049 | Method and Device for Reduction of Wear in a Water Turbine - A method and device for reducing wear in a water turbine ( | 01-20-2011 |
20110027086 | SINGLE-BEARING STRUCTURE AND WIND POWER PLANT HAVING THE SINGLE-BEARING STRUCTURE - A single-bearing structure, in particular for use in a wind power plant, which has a low friction operating characteristic. The single-bearing structure for mounting a rotor in the wind power plant has two first rows of rolling bodies, which are arranged in the single-bearing structure such that their pressure lines intersect with one another and with a radial plane of a rotation axis of the single-bearing structure. The rolling bodies of the two first rows of rolling bodies are designed as cylindrical rollers. | 02-03-2011 |
20110033300 | OIL-RETAINING STRUCTURE ON FAN ROTOR - An oil-retaining structure on fan rotor includes a rotor body, a rotor shaft, and an oil-retaining portion. The rotor body has an open end and a closed end, on an inner side of which the oil-retaining portion is formed. The oil-retaining portion includes an annular recess, which has an oil-retaining edge and an oil-retaining surface extended between the oil-retaining edge and a bottom of the annular recess. The rotor shaft has a first end connected to the oil-retaining portion and a second end extended through a bearing of a fan. Since the oil-retaining portion is coated with a layer of oil-repellant agent, lubricant oil being centrifugally pulled out of the bearing when the fan operates and caught by the annular recess can quickly flow back to the bearing without remaining in the annular recess due to a capillary action. Therefore, the fan can have increased service life and upgraded operating efficiency. | 02-10-2011 |
20110085909 | VERTICAL AXIS WIND TURBINE APPARATUS - A vertical axis wind turbine apparatus includes a stationary support platform having a platform pipe fixed to the platform. The platform pipe has an axis. The apparatus also includes a power ring dimensioned and configured for rotational movement about the platform pipe and having an axis of rotation coincident with the axis of the platform pipe. The power ring includes a sleeve concentric with the platform pipe that has a plurality openings therein. A plurality of rollers is carried on the power ring and each of the rollers extends through one of the openings and abuts the platform pipe thereby facilitating rotation of the power ring about the platform pipe. A plurality of elongated blades is carried on the power ring about the periphery thereof. | 04-14-2011 |
20110243741 | Lubrication System for a Bearing - A lubrication system is provided for a bearing with a stationary inner ring and a rotating outer ring. The lubrication system includes a distribution ring attached to the outer ring for distributing a lubricant in the bearing. The distribution ring includes transport openings directed towards the bearing for transportation of the lubricant from a lower position of the outer ring to an upper position of the outer ring. | 10-06-2011 |
20110262274 | ENGINE ASSEMBLED SEAL - A system for creating a seal between a damper and a platform of a turbine engine component includes a turbine engine component having an airfoil portion, a platform, and a fir tree for joining the turbine engine component to a rotor, a damper located in an area beneath the platform, a seal having a sealing surface which seats against an underside of the platform, which seal has a seal retention feature which bends into contact with an underside of the damper, and which seal with the seal retention feature has a center of gravity which allows the seal retention feature to bend up as result of rotational movement of the rotor. A method for creating the seal is also described. | 10-27-2011 |
20110274548 | Stiff-in-Plane Rotor Configuration - A rotor assembly for a rotary-wing aircraft, the rotor having a central hub assembly with a flexure-type, twist-shank yoke with multiple arms, each arm being adapted for a rotor blade to be mounted thereto. The arms provide for pitch changes of blades attached to the yoke through twisting of portions of the arms about a corresponding pitch axis. An inboard pitch bearing associated with each arm is attached to the hub assembly and allows for rotation of the attached blade about the pitch axis, the inboard pitch bearing also allowing for out-of-plane motion of the arm relative to the hub assembly about a flapping axis. An outboard pitch bearing associated with each arm is attached to the associated arm a selected distance from the inboard pitch bearing and allows for rotation of the attached blade about the pitch axis. | 11-10-2011 |
20110311362 | Compound Steel Bearings and Methods of Manufacturing - A bearing comprising a high tensile steel layer and a mild steel base layer with said layers being fused together across a fusion zone, a raceway machined across the bearing, with said raceway having a bearing support depth which is substantially greater than a bearing support depth obtainable using traditional steel hardening processes, and a retention structure machined into at least the mild steel base layer and utilized to retain the bearing to an underlying bearing support. | 12-22-2011 |
20120063903 | COUPLING STRUCTURE - A coupling structure for connecting an impeller to a motor shaft of a liquid pump, includes a carrier rod sleeved on the shaft, and a seal assembly connecting the carrier rod to a housing of the pump. The carrier rod is fixed to the shaft by way of a screw thread structure. The seal assembly includes a rotating seal sealingly fixed on an outer surface of the carrier rod and fixed to the carrier rod for rotation there with by an interlocking structure. | 03-15-2012 |
20120076655 | THREE ROW ROLLER BEARING, IN PARTICULAR FOR A WIND TURBINE - A three row roller bearing, in particular for a wind turbine, is provided. The three row roller bearing includes a row of radial rollers receiving radial load and a pair of rows of axial rollers receiving axial load. The axial rollers are tapered. A wind turbine using the three row roller bearing is also provided. | 03-29-2012 |
20120099992 | ABRASIVE ROTOR COATING FOR FORMING A SEAL IN A GAS TURBINE ENGINE - A compressor rotor seal includes a bare radial inward end of a rotor vane in proximity to a rotor surface coated with an abrasive material. | 04-26-2012 |
20120099993 | WIND TURBINE MAIN BEARING - A wind turbine main bearing realized to bear a shaft of a wind turbine, which shaft is caused to rotate by a number of blades connected to the shaft is disclosed. The wind turbine main bearing includes a fluid bearing with a plurality of bearing pads arranged about the shaft. Also disclosed is a wind turbine with a number of blades connected to a shaft and realized to rotate the shaft, which wind turbine includes as main bearing a wind turbine main bearing. Further described is a method of performing maintenance on a wind turbine, including the steps of halting a rotation of the shaft, operating a lifting arrangement to raise the shaft, and removing a bearing pad of the wind turbine main bearing from the bearing housing of the wind turbine main bearing. | 04-26-2012 |
20120107121 | SWITCHABLE COOLANT PUMP - The invention relates to a switchable coolant pump for combustion engines which is driven by a pulley, wherein the impeller can be driven switchably by the pulley by way of a friction pairing. It is the aim of the invention to develop a switchable coolant pump for combustion engines of the above type, which is simple to manufacture in terms of the manufacturing engineering thereof, driven by a pulley, and which is suited particularly for smaller coolant pumps (which is to say, coolant pumps in which the distance between the pulley and the impeller is smaller than 15 mm and the pulley diameter of which is smaller than 50 mm). The switchable coolant pump according to the invention, comprising a connecting flange ( | 05-03-2012 |
20120121420 | METHOD FOR HEAT-TREATING A RING-SHAPED MEMBER, METHOD FOR PRODUCING A RING-SHAPED MEMBER, RING-SHAPED MEMBER, BEARING RING, ROLLING BEARING, AND METHOD FOR PRODUCING A BEARING RING - Disclosed is a method for heat-treating a ring-shaped member, which makes it possible to form a quench-hardened region having a uniform annular shape in the circumferential direction, while the production costs in terms of the quenching apparatus are kept down. The method includes the following steps: a step in which a coil which is disposed in such a way as to face a rolling contact surface of a ring-shaped formed body made of steel and which performs induction heating of the formed body is rotated relative to the formed body in the circumferential direction thereof, whereby an annular heating region which is heated to a temperature at or above an A | 05-17-2012 |
20120134831 | LUBRICATION SYSTEM AND WIND TURBINE INCORPORATING SAME - A lubrication system and wind turbine are provided having one or more input ports in a component and one or more output ports in the component. An expandable lubrication receptacle is connected to the one or more output ports, and the expandable lubrication receptacle is configured for receiving a lubrication medium from the component. | 05-31-2012 |
20120263594 | WIND TURBINE - A wind turbine is provided with a rotor, a substantially horizontal rotor shaft, with a machine frame, with output means for dissipating the rotation energy of the rotor; wherein the output means are formed as ring gear or planet carrier of a gear box; the rotor shaft is connected in a rotation-fixed manner to the machine frame; the rotor has a hub and at least one rotor blade attachable thereto, is rotatably supported on the rotor shaft, and is connected substantially in a rotation-fixed manner to the output means; wherein decoupling connecting means are effectively arranged between the output means and the rotor, so as to substantially prevent the transmitting of radial, axial and/or tilting motions from the rotor onto the output means. | 10-18-2012 |
20120282100 | ROLLER BEARING AND MAIN SHAFT SUPPORT STRUCTURE OF WIND-POWER GENERATOR - A tapered roller bearing comprises an outer ring ( | 11-08-2012 |
20120301302 | SEAL STRUCTURE OF MECHANICAL DEVICE AND WIND TURBINE GENERATOR - It is intended to improve maintainability of a seal structure in a place where the rotation shaft is inserted in the housing. A seal structure of a mechanical device is provided with a housing | 11-29-2012 |
20120308389 | LOCKING NUT ASSEMBLY - A locking nut assembly including a bearing nut having a plurality of external serrations, a shaft nut having a plurality of external serrations, and a locking collar having a plurality of internal serrations. The bearing nut and the shaft nut are threadedly installed on a shaft assembly having an impeller, a bearing, and a spline adapter installed within the impeller. The plurality of serrations of the bearing nut align with the plurality of serrations of the shaft nut when they are installed on the impeller. The locking collar is installed on the bearing nut and the shaft nut so that the aligned plurality of serrations of the bearing nut and the plurality of serrations of the shaft nut engage the plurality of serrations of the locking collar. The locking collar is retained on the bearing nut and shaft nut by a retaining ring. | 12-06-2012 |
20120328440 | Spindle - A spindle is provided, comprising a spindle body having a first end, a second end, and a channel extending from the first end to the second end; a first end cover and a second end cover, the first and second end covers being releasably securable to the first and second ends, respectively, for defining a sealed space within the channel; the channel being configured for receiving at least one ball bearing assembly, a shaft, and a fluid; such that the at least one ball bearing assembly, a portion of the shaft, and the fluid are contained within the sealed space when the first and second end covers are secured to the first and second ends. | 12-27-2012 |
20130011263 | SYSTEM AND METHOD FOR LUBRICANT FLOW CONTROL - A wind turbine includes at least one turbine blade coupled to a rotor and configured to rotate about a central axis, a gearbox having an input configured to receive rotational input from the rotor, and an output configured to direct rotational output to a generator, a flow passageway configured to receive a lubrication fluid and direct the lubrication fluid to at least one component within the gearbox and a primary variable orifice device positioned along the flow passageway and configured to selectively vary an area of an orifice within the passageway in dependence upon at least one of a temperature or a viscosity of the lubrication fluid. | 01-10-2013 |
20130017089 | DOUBLE ROW TAPERED BEARING ASSEMBLY AND WIND TURBINEAANM Stiesdal; HenrikAACI Odense CAACO DKAAGP Stiesdal; Henrik Odense C DK - A double row tapered bearing assembly includes a first portion and a second portion. The first portion includes a first ring and a second ring. The first ring is connected with the second portion via at least one row of tapered rollers or balls. The second ring is also connected with the second portion via at least one row of tapered rollers or balls. The first ring and the second ring each includes at least one groove. The at least one groove in the first ring faces the at least one groove in the second ring to form a cavity. At least one member is placed in the cavity. | 01-17-2013 |
20130071246 | BEARING ELEMENT - The invention relates to a bearing element ( | 03-21-2013 |
20130078098 | ROLLER BEARING, RETAINER SEGMENT, SPACER AND MAIN SHAFT SUPPORT STRUCTURE OF WIND-POWER GENERATOR - A roller bearing comprises an outer ring, an inner ring, a plurality of rollers arranged between the outer ring and the inner ring, and a plurality of retainer segments having a plurality of column parts extending in a direction along a shaft so as to form a pocket for holding the roller, and connection parts and extending in a circumferential direction to connect the plurality of column parts, and continuously lined with each other in the circumferential direction between the outer ring and the inner ring. The column part is positioned at an circumferential end of the retainer segment. Here, a circumferential outer side end face of the column part positioned at the end is flat, and a circumferential inner side end face of the column part positioned at said end is provided with a recess recessed in the circumferential direction to reduce the thickness of the column part. | 03-28-2013 |
20130084186 | ELASTOMERIC BEARING WITH TAPERED SHIMS - The centrifugal force bearing includes a plurality of tapered metal shims such that the thicker end of each tapered metal shim near the inner portion of bearing. The bearing can include a plurality of tapered elastomeric members that are consequently tapered so that the inner portions are narrower than the outer portions. The tapered metal shims can increase the axial stiffness in the direction of the centrifugal force, thereby reducing the axial deflection under loading, as compared to non-tapered shims. Further, reducing axial deflection reduces clearance issues that may arise when the rotor blade is allowed to axial deflect significant distances. As such, the tapered metal shims can increase the capacity of the bearing. Tapering the metal shims can decrease the compression induced shear strain near the outer portions of the elastomeric member, where loads are typically higher. | 04-04-2013 |
20130121829 | BEARING/STATOR SET RETAINER STRUCTURE - A bearing/stator set retainer structure includes a base seat, a stator set and a retainer member. The base seat has a bearing cup having an internal bearing hole in which a bearing is disposed. The stator set is assembled on the base seat and has an abutment section on one side distal from the base seat. The retainer member has at least one latch section for fixedly assembling the retainer member on the bearing cup. The retainer member further has at least one protrusion section in abutment with the abutment section and at least one inner flange section in abutment with the bearing. Accordingly, the retainer member can be easily disassembled from and reassembled with the bearing cup to facilitate reworking. Also, the retainer member is able to fix the bearing and the stator set at the same time to simplify the assembling process and prolong lifetime of the fan. | 05-16-2013 |
20130121830 | THIN FAN AND MANUFACTURING METHOD THEREOF - A thin fan and a manufacturing method thereof are provided. The thin fan has a fan frame, a sleeve, a bearing, an impeller, a magnetic element and at least one coil. The fan frame includes a base and a cover connected to the base. The fan frame has an inlet and an outlet. The sleeve is disposed on the base, and the bearing is disposed within the sleeve. The impeller and the magnetic element are disposed on the fan frame and a metal housing, respectively. The coil is disposed opposite the magnetic element. The base has at least one plastic portion and at least one metal portion. The metal portion has at least one non-magnetic metal, and the plastic portion is integrated with the non-magnetic metal by injection molding. | 05-16-2013 |
20130121831 | DRIVE OF A TAIL ROTOR OF A HELICOPTER - The invention relates to a drive ( | 05-16-2013 |
20130142654 | FAN DEVICE HAVING A SELF-LUBRICATING BEARING - The present invention provides a fan device having a self-lubricating bearing. The fan device includes a fan base and at least one self-lubricating bearing. The self-lubricating bearing is disposed in a bearing hole of the fan base and has a bearing surface assembly. The bearing surface assembly is provided with at least one magnetic element. By this arrangement, the magnetic element generates a magnetic attractive force to the spindle, thereby making the spindle to return to its optimal position rapidly. In this way, wear, noise and vibration are reduced. Further, the lifetime of the fan device is extended. | 06-06-2013 |
20130149155 | ROTOR SHAFT AND COOLING FAN USING SAME - A rotor shaft includes a main body having a central portion and an extension portion. The extension portion has a plurality of extension sections radially outward extended from the central portion by different distances to together define a peripheral surface and a non-circular cross section of the main body. In a cooling fan using the rotor shaft, the main body of the rotor shaft is received in a shaft space internally defined by a bearing of the fan, and a lubricant is filled in a space left between the main body and the shaft space. With the non-circular cross section of the main body of the rotor shaft, the lubricant filled between the rotor shaft and the shaft space can have increased support pressure to thereby reduce the noise and vibration caused by frictional contact of the rotor shaft with the bearing during the operation of the cooling fan. | 06-13-2013 |
20130149156 | SEALING ARRANGEMENT FOR A WIND TURBINE - A sealing arrangement for a wind turbine is provided. The sealing arrangement includes an interface seal part arranged between a stationary element of the wind turbine and a rotary element of the wind turbine, which interface seal part is arranged to establish a seal between an interior of the stationary element and an exterior environment. Also disclosed is a brake disc for a wind turbine. The brake disc is realized to accommodate at least a portion of an interface seal part of such a sealing arrangement. Also described is a wind turbine which includes the sealing arrangement and the brake disc. | 06-13-2013 |
20130195665 | TURBINE BLADE DAMPER SEAL - A damper seal received in a cavity of a turbine blade located between a platform and a retention shelf damper seal according to an exemplary aspect of the present disclosure includes, among other things, a central body portion having a first end region, an opposing second end region, and a width. The damper seal further includes a first portion extending from the first end region of the central body portion, and a first end region of the first portion includes first outwardly extending tabs that define a first enlarged portion that has a first width greater than the width of the central body portion and a second portion extending from the opposing second end region of the central body portion. | 08-01-2013 |
20130209257 | Blade for a Wind Turbine - A blade for a wind turbine comprising a blade root portion for attachment to a mounting flange of the wind turbine, the blade root comprising a plurality of first holes provided with an internal bushing wherein the bushings comprise a first end at or near a mounting surface of the blade root and an opposite second end embedded in their corresponding first holes, and wherein one or more internal bushing being guiding bushings, the guiding bushings comprising a first end that is adapted to guide the blade root with respect to a mounting flange. | 08-15-2013 |
20130216384 | Compact Rotorcraft Dual-Element Spherical Elastomeric Centrifugal-Force Bearing Assembly - A rotary system includes a retention member and a flexible yoke having an opening forming a bridge. The rotary system is further provided with two bearing assemblies, a first bearing assembly extending through the opening of the yoke and configured to secure a rotor blade to the retention member and a second bearing assembly extending through the opening of the flexible yoke and configured to secure the rotor blade to the bridge. The second bearing element includes a bearing element having a first surface forming a spherical contouring and an opposing integral second surface forming a conical contouring. | 08-22-2013 |
20130216385 | GREASE PASSAGE IN FLANGED BEARINGS - A bearing having grease lubrication includes a first ring and a second ring. A plurality of screw holes axially extend through the first ring. A first axial end of the first ring is affixed to a housing by a plurality of screws extending from the housing into the respective screw holes. A first bore is defined in the first ring adjacent to a second axial end of the first ring. The first bore intersects and fluidly communicates with one of the screw holes such that grease is dischargeable therethrough. | 08-22-2013 |
20130224026 | SEALS FOR ROTARY DEVICES AND METHODS OF PRODUCING THE SAME - In one aspect, a seal for a turbine engine includes a seal body disposed at a base of a turbine engine blade and a wing portion extending axially from said seal body. The wing portion has a first portion substantially parallel with a centerline of the engine and an angled upturn portion. The first portion extends between the seal body and the angled upturn portion. An angle between the engine centerline and the angled upturn portion is between about 0 degrees and about 90 degrees. | 08-29-2013 |
20130236313 | MAGNUS ROTOR - The invention relates to a Magnus rotor comprising a support that is arranged inside the Magnus rotor, a rotor that rotates about the support during operation of the Magnus rotor, a bearing that supports the rotor on the support, and a shaft that penetrates the bearing and is connected to the rotor above the bearing. | 09-12-2013 |
20130251530 | BEARING CUP STRUCTURE AND THERMAL MODULE THEREOF - A bearing cup structure and a thermal module thereof. The bearing cup structure includes a cup body and a retainer ring. The cup body has a fixing section, a receiving space and a shoulder section. The fixing section is formed at one end of the cup body. The shoulder section is formed in the receiving space. The retainer ring is formed with a hole in communication with the receiving space. With the bearing cup structure, the heat dissipation efficiency of the thermal module is increased and the assembling time is shortened to lower the manufacturing cost. | 09-26-2013 |
20130287576 | Aircraft Rotor with Discrete Flap Hinge - An aircraft rotor assembly has upper and lower hub plates adapted to be mounted to a central rotor mast for rotation therewith. A plurality of radial arms is connected to at least two flap bearings mounted between the hub plates and forming a discrete flap hinge, each flap hinge defining a flap axis and allowing rotation of the associated arm relative to the hub plates and about the corresponding flap axis. Each of a plurality of blade grips is rotatably connected to one of the arms for rotation about a pitch axis and adapted for mounting of a blade to each blade grip, such that each blade is capable of rotation with the grip about the pitch axis and capable of rotation together with the corresponding arm relative to the hub plates and about the corresponding flap axis. | 10-31-2013 |
20130294917 | APPARATUSES INCLUDING A ROTOR GROUP AND METHODS OF DAMPING THE APPARATUSES - An apparatus includes a rotor group rotatable within the apparatus and a bearing assembly supporting the rotor group. A support structure supports the bearing assembly and is fixed in the apparatus. The support structure includes a support housing, an anisotropic support that engages the bearing assembly and the support housing, and a squeeze film cavity that is defined between the anisotropic support and the support housing. A damper fluid supply line is in fluid communication with the squeeze film cavity. A fluid interruption device is disposed in the damper fluid supply line. A method of damping the apparatus includes supplying fluid under pressure to the squeeze film cavity through the damper fluid supply line. Upon surpassing a predetermined value of a variable correlated to rotational speed of the rotor group, the fluid flow to the squeeze film cavity is interrupted with the fluid interruption device. | 11-07-2013 |
20130323060 | LADDER SEAL SYSTEM FOR GAS TURBINE ENGINES - A sealing system for a gas turbine engine includes an arcuate first ladder seal segment having a central portion, an upstream flange adjoining the central portion, a downstream flange adjoining the central portion opposite the upstream flange, and a plurality of openings. The upstream flange is arranged at an angle θ | 12-05-2013 |
20130323061 | SEALING DEVICE - The present invention relates to a sealing device including a sealing circular piece, an inner ring and an outer ring, with one being able to rotate relative to an axis. The circular piece is arranged between the two rings and comprises two circular lips arranged in a groove inclined with respect to the axis of rotation. The groove is provided on the outer face of the inner ring. An attachment profile is fixed in an orifice formed in the outer ring. The inclination of the groove makes it possible to increase the potential contact surface area perpendicular to the axis of rotation of the crown ring, since, for a given distance between an outer edge and an inner edge of a ring, the groove can be longer, improving the resistance of the top lip to expulsion. The two lips are prestressed in the groove allowing for a better hold. | 12-05-2013 |
20130336792 | FAN STRUCTURE - A fan structure includes a bearing and an impeller, wherein the bearing comprises a plurality of first lodge portions, and the impeller comprises a hub and a plurality of blades. The hub comprises a plurality of second lodge portions. The first lodge portions are cladded with the second lodge portions by means of injection molding. | 12-19-2013 |
20140003946 | CONE ANGLE INSERT FOR WIND TURBINE ROTOR | 01-02-2014 |
20140037451 | BEARING DEVICE AND HYDRAULIC MACHINE - A bearing device of embodiment is usable for a hydraulic machine having a rotary shaft of a vertical shaft, with a water tank storing lubrication water, and a bearing pad supporting a skirt member on the rotary shaft in the lubrication water. The bearing device has a first supporting mechanism slidably supporting the bearing pad from the radial direction, and a second supporting mechanism slidably supporting the bearing pad from a bottom portion side in an axial direction. One of a supporting surface supporting the bearing pad in the first supporting mechanism and a supported surface supported by the supporting surface in the bearing pad is formed in a convex shape. One of a supporting surface supporting the bearing pad in the second supporting mechanism and a supported surface supported by the supporting surface in the bearing pad is formed in a convex shape. | 02-06-2014 |
20140044544 | WIND TURBINE YAW OR PITCH BEARING UTILIZING A THREADED BEARING SURFACE - A yaw or pitch bearing for a wind turbine includes a slewing ring bearing assembly having an outer race and an inner race, both having an inner surface and an outer surface. The inner surface of the outer race and the outer surface of the inner race have a plurality of threads that engage and define a threaded bearing surface. | 02-13-2014 |
20140056709 | ROTATING SYSTEM FOR A WIND TURBINE - It includes first and second mutually rotatable elements and a bearing arrangement associated therewith including at least one single film-like chamber formed between the first and second elements, a number of fluid injectors for injecting fluid into the hydraulic chamber and a control device for separately controlling the pressure of the fluid injected by the injectors depending at least on loads on the first element or the second element. A driving device is also provided for driving at least one of said elements in rotation, including hydraulic chambers which volume is defined by the relative position of the first and second elements and a pump device for filling the chamber with fluid to rotate the elements. | 02-27-2014 |
20140064969 | BLADE OUTER AIR SEAL - An example blade outer air seal assembly for a gas turbine engine includes a main body portion extending along an axis. The main body portion has a radially inward facing surface and at least one radially outward facing surface. A passage is provided in the main body portion between the at least one radially inward facing surface and the at least one radially outward facing surface. The passage has a first portion and a second portion transverse to the first portion, and at least one rib disposed along the axis radially outward of the second portion. | 03-06-2014 |
20140079550 | FAN BEARING RETAINING STRUCTURE - A fan bearing retaining structure includes a fan base seat having a bearing cup having a bearing hole. An inner circumferential wall of the bearing hole is formed with at least one restriction section and at least one recessed section. At least one elastic member and at least one retainer member are respectively positioned at the restriction section and the recessed section. A bearing is positioned between the elastic member and the retainer member. The elastic member serves to provide elastic force to tightly attach the bearing to the retainer member. Under such circumstance, the bearing is prevented from rotating or sliding within the bearing hole so as to avoid wear or failure of the bearing. Accordingly, the rotor assembly can smoothly operate. | 03-20-2014 |
20140154078 | IMPELLER WITH SEALING PORTION - There is provided an impeller rotating about a rotary shaft, the impeller including: an inlet through which a fluid is introduced; an outlet through which the fluid is discharged; a supporter connected to the rotary shaft; a blade portion provided on the supporter; a shroud portion disposed to cover the blade portion; and a sealing portion including at least one sealing protrusion protruding in a direction that is in parallel with the rotary shaft, and disposed at a portion of the shroud portion, which configures the inlet. | 06-05-2014 |
20140186185 | WIND TURBINE BLADE MOUNTING SYSTEM - A wind turbine blade mounting system for use with variable-pitch wind turbine blades ( | 07-03-2014 |
20140193262 | DIRECT-DRIVE WIND TURBINE - A direct driven wind turbine with a plain bearing and a service method for this bearing is provided. A rotor is directly connected with a rotatable drive train, which is directly connected with a rotor of an electrical generator. The rotatable drive train is connected with a stationary part via at least one bearing, which allows the rotation of the drive train in relation to the stationary part. The generator provides a support structure to which the stationary side of the at least one bearing is mounted. The at least one bearing is a plain bearing and the plain bearing comprises a wear-and-tear-part, which is an object to be exchanged. The rotatable drive train is prepared to be fastened to the stationary part and at least one wear-and-tear-part of the plain bearing is exchangeable while the rotatable drive train is fastened to the stationary part. | 07-10-2014 |
20140193263 | LUBRICATION SYSTEMS FOR BEARING ASSEMBLIES - A lubrication system is disclosed for a bearing assembly, the bearing assembly having at least one bearing. The lubrication system may comprise a pump circuit, an injection circuit, an extraction circuit and at least one three-way valve. The pump circuit may comprise at least a pump. The injection circuit may provide lubricant to the bearing during an injection mode of operation. The extraction circuit may extract lubricant from the bearing during an extraction mode of operation. A flow combination topology of the first three-way valve may allow operation of the lubrication system in the injection mode or in the extraction mode or in both modes simultaneously. | 07-10-2014 |
20140193264 | DIRECT-DRIVE WIND TURBINE - A direct driven wind turbine and the main bearing used in such a wind turbine is provided. The rotating drive train is connected with a stationary part of the wind turbine via at least one bearing, which allows the rotation of the drive train in relation to the stationary part. The at least one bearing is a plain bearing; the bearing comprises at least one cylindrical sliding surface constructed to support radial loads present in the drive train. The bearing comprises at least two radial bearing surfaces constructed to support axial loads and bending moments present in the drive train. The surface areas of the radial bearing surfaces is dimensioned proportional to a predetermined maximum total load of the bending moments expected in the drive train. | 07-10-2014 |
20140199171 | LARGE ROLLING BEARING - The invention concerns a large-size rolling bearing which is in the form of a multi-row ball-bearing rotary joint for carrying axial loads, radial loads and tilting moments. The large-size rolling bearing has an outer race, an inner race, a first ball row and a second ball row. The first ball row and the second ball row are respectively arranged in axially mutually spaced relationship in a four-point bearing configuration, associated with the first ball row are four raceway portions and associated with the second ball row are four raceway portions. The invention concerns in particular a large-size rolling bearing in which a surface of a respective raceway portion provided in the inner race is larger than the surface of the respectively adjacent raceway portion provided in the inner race and equal to the surface of the respectively diametrally oppositely disposed raceway portion provided in the outer race. | 07-17-2014 |
20140241887 | HYDRODYNAMIC AXIAL BEARING - A hydrodynamic axial bearing for mounting a shaft which is mounted rotatably in a bearing housing, including an axial stop of the bearing housing and a bearing comb which rotates with the shaft. A lubricating gap, which is loaded with lubricating oil and is delimited by a profiled circular ring face and a sliding face, being formed between the axial stop and the bearing comb. The profiled circular ring face and the sliding face are configured in such a way that the lubricating gap is constricted radially to the outside with regard to the axial direction. As a result, temperature deformations which occur during operation and deformations on account of centrifugal, shearing and other forces in the bearing comb can be compensated for. | 08-28-2014 |
20140294586 | Turbine Main Bearing Lubrication - A greased-based lubrication system for a main bearing arrangement of a wind turbine can be replaced with an oil-based lubrication system by: disconnecting an upwind bearing cover | 10-02-2014 |
20140301848 | SEALING ASSEMBLY - It comprises a first member with a plate attached and substantially covering at least one portion of a second member ( | 10-09-2014 |
20140322020 | Rotary Blood Pump - Various “contactless” bearing mechanisms including hydrodynamic, hydrostatic, and magnetic bearings are provided for a rotary pump as alternatives to mechanical contact bearings. These design features may be combined. In one embodiment, the pump apparatus includes a rotor having a bore, a ring-shaped upper rotor bearing magnet, and a ring-shaped lower rotor bearing magnet. The bearing magnets are concentric with the bore. The lack of mechanical contact bearings enables longer life pump operation and less damage to working fluids such as blood. | 10-30-2014 |
20140328687 | WIND TURBINE ROTOR BLADE ASSEMBLY WITH SURFACE FEATURES - Rotor blade assemblies for wind turbines are provided. A rotor blade assembly includes a rotor blade. In some embodiments, the rotor blade assembly further includes a surface feature configured on an exterior surface of the rotor blade, the surface feature having an exterior mounting surface. At least a portion of the exterior mounting surface has a contour in an uninstalled state that is different from a curvature of the exterior surface of the rotor blade at a mount location of the surface feature on the rotor blade. In other embodiments, the rotor blade assembly further includes a seal member surrounding at least a portion of a perimeter of the surface feature. The seal member contacts and provides a transition between the exterior surface and the surface feature. | 11-06-2014 |
20140341741 | BEARING ARRANGEMENT FOR A WIND TURBINE - A bearing arrangement to avoid a static charge in a bearing is provided. | 11-20-2014 |
20140356170 | OIL RETURN STRUCTURE FOR FAN - An oil return structure for fan includes a base, a bearing, a retaining ring and a rotor. The base has a bearing cup internally defining a receiving space for receiving the bearing therein. The bearing has a centered and axially extended shaft hole. The retaining ring is located at a front end of the bearing and has a central hole. The rotor includes a hub and a shaft. The shaft is extended through the central hole of the retaining ring into the shaft hole of the bearing, and is provided with an annular groove corresponding to the retaining ring. Oil in the bearing flowing to the annular groove during fan operation is centrifugally pulled out of the shaft and then caught by the retaining ring, from where the oil returns to the bearing. Therefore, loss of oil from the bearing is largely reduced to ensure extended fan service life. | 12-04-2014 |
20140363297 | Ni BASED FORGED ALLOY, AND TURBINE DISC, TURBINE SPACER AND GAS TURBINE EACH USING THE SAME - The Ni based forged alloy has a composition containing, on the basis of mass percent, Al: 0.5 to 1.0%, Cr: 17 to 21%, Fe: 17 to 19%, Nb: 4.5 to 5.5%, Ti: 0.8 to 1.3%, W: 3.0 to 6.0%, B: 0.001 to 0.03%, C: 0.001 to 0.015%, and Mo: 1.0% or less, the balance being Ni and inevitable impurities. The alloy includes carbide grains of the contained elements. The carbide grains have an average grain diameter of 20 μm or less. Thus, a Ni based forged alloy is provided which is excellent in high-temperature fatigue property and has a moderate macrosegregation property. | 12-11-2014 |
20140369839 | BEARING MECHANISM AND BLOWER FAN - A sleeve housing of a bearing mechanism according to a preferred embodiment of the present invention includes a cylindrical portion arranged to cover outer circumferences of a sleeve and a plate portion, and a bottom portion arranged to close a lower portion of the cylindrical portion. The bottom portion includes a plurality of projecting portions arranged in a circumferential direction in an upper surface of the bottom portion. Each projecting portion is arranged to project upward to be in contact with a lower surface of the sleeve. Each of the projecting portions and the plate portion are arranged radially opposite each other. At least a portion of an adhesive is arranged to exist between an outer circumferential surface of the sleeve and an inner circumferential surface of the cylindrical portion. | 12-18-2014 |
20140377070 | Axial Turbomachine Compressor Drum with Dual Means of Blade Fixing - The present application relates to a rotor drum of a low-pressure compressor of an axial turbomachine. The drum includes a wall generally symmetrical in revolution about an axis and following a generally curved profile. The wall is configured to support a plurality of blade rows. A first blade row is formed by an annular platform integrally formed with the wall at the peak of its profile in relation to the axis; and a second blade row directly downstream of the first; and a third blade row directly upstream of the first; are formed by one or more blade-retaining grooves formed on the wall. The first blade row and the drum form an integral assembly, eliminating certain vibrations. Anchoring the blades is hybrid or mixed. The rotor may be mounted in a housing with ring-shaped stators. | 12-25-2014 |
20150016999 | MULTI-PIECE IMPELLER - An impeller includes a shell having a plurality of blades. The shell may also define a cavity. The impeller may further include a backplate that engages at least a portion of the shell. The backplate can include a post which can be coupled to the impeller through a fastener such as a threaded nut. The backplate can be thereafter clamped to the impeller shell. Seals can be provided in the impeller, such as in the backplate. The backplate and impeller shell can be piloted onto each other. In some forms splines can be used to secure the backplate to the impeller shell. | 01-15-2015 |
20150017000 | COMPOSITE SLIDING BEARING AND WIND POWER GENERATING DEVICE USING THE SAME BEARING - A composite sliding bearing is disclosed. The composite sliding bearing has an inner ring, formed of split rings halved by a center in an axial direction, which has V-section inclined surfaces formed on the outer diameter surfaces of the split rings, bearing pads disposed separately on the inclined surfaces of the split rings along the outer diameter surface of the inner ring, and an outer ring on the inner diameter surface of which is formed a V-section umbrella-shaped inclined surface corresponding to the outer diameter surface of the inner ring. A radial load and axial load applied to the bearing are supported by sliding the inner diameter surface of the outer ring on the sliding surfaces of the bearing pads in a condition in which the bearing pads are fluid lubricated. | 01-15-2015 |
20150030453 | TOROIDAL AND THRUST BEARING ASSEMBLY - The present invention relates to a bearing assembly for supporting a shaft having a toroidal roller bearing arrangement. The bearing assembly includes a first set of rolling elements formed of toroidal roller elements arranged in a first row and interposed between an inner ring providing a first inner raceway and an first outer ring providing a first outer raceway, and a thrust bearing arrangement having a second set of rolling elements arranged in a second row. The rolling elements are in contact with and arranged to cooperate with a second inner raceway and a second outer raceway for supporting axial loads and for restricting axial movement of the shaft in relation to the first outer ring. The present invention also relates to a method for manufacturing a bearing assembly for supporting a shaft. | 01-29-2015 |
20150056079 | ROLLER BEARING, RETAINER SEGMENT, SPACER AND MAIN SHAFT SUPPORT STRUCTURE OF WIND-POWER GENERATOR - A roller bearing comprises an outer ring, an inner ring, a plurality of rollers arranged between the outer ring and the inner ring, and a plurality of retainer segments having a plurality of column parts extending in a direction along a shaft so as to form a pocket for holding the roller, and connection parts and extending in a circumferential direction to connect the plurality of column parts, and continuously lined with each other in the circumferential direction between the outer ring and the inner ring. The column part is positioned at an circumferential end of the retainer segment. Here, a circumferential outer side end face of the column part positioned at the end is flat, and a circumferential inner side end face of the column part positioned at said end is provided with a recess recessed in the circumferential direction to reduce the thickness of the column part. | 02-26-2015 |
20150064008 | TURBOMACHINE BUCKET HAVING ANGEL WING FOR DIFFERENTLY SIZED DISCOURAGERS AND RELATED METHODS - A turbomachine bucket may include an airfoil, a shank coupled to the airfoil, and an angel wing coupled to the shank, the angel wing having an axially extending tip sized to seal with a plurality of discouragers, each discourager having a different axial extent. Various methods for modifying an angel wing to accommodate different sized discouragers are also disclosed. | 03-05-2015 |
20150064009 | ROTOR STRUTURE OF FAN AND MANUFACTURING METHOD THEREOF - A rotor structure of a fan includes a bushing, a hub, a shaft and a plurality of blades. The hub has a top portion and a sidewall, and the top portion of the hub covers the bushing. The hub and the bushing are made by the same material. One end of the shaft is connected to the bushing, and the shaft is disposed inside the top portion. The blades are disposed on the outer side of the sidewall of the hub. A manufacturing method of the rotor structure is also disclosed. | 03-05-2015 |
20150078900 | TURBINE BLADE WITH AIRFOIL TIP HAVING CUTTING TIPS - A turbine blade having a squealer tip at a radially outer end of the turbine blade with a plurality of abradable coating cutting tips extending radially therefrom toward a ring segment is disclosed. During operation, the abradable coating cutting tips may cut into an abradable coating on the ring segments of the turbine engine that are positioned radially outward from the turbine blade. The plurality of abradable coating cutting tips may include one or more cutting arrises extending from the squealer tip to an outermost tip of the at least one of the abradable coating cutting tips. | 03-19-2015 |
20150098825 | BEARING ARRANGEMENT - A bearing arrangement, comprising a rolling bearing, which includes an inner ring, an outer ring, rolling elements interposed therebetween, and a cage for holding and separating the rolling elements, wherein the inner ring presents an inner circumferential surface. A shaft is also present, wherein the rolling bearing is mounted on the shaft via the inner circumferential surface of the inner ring. The shaft during operation is meant to oscillate in its axial direction, or is positioned in an angle α being (90−y) degrees, wherein y is between 0 and 89, or the rolling elements during operation are exposed of an axial force F, and the cage presents means for axially guiding the rolling elements against at least one of the inner ring, the outer ring or a separate element located outside the rolling bearing. The bearing can be integrated into a wind turbine main shaft arrangement. | 04-09-2015 |
20150098826 | APPARATUS AND METHOD FOR ASSEMBLING A DAMPER BEARING ASSEMBLY - A damper bearing assembly for a gas turbine engine is disclosed. The damper bearing assembly is designed to define forward and aft axial gaps which allow for normal deflection under standard operating thrust loads, but then close during a fan blade out event to allow the increased load to transfer to the damper housing. Frictional forces between contacting parts limit torsional windup and increase torsional resistance with increasing load. The damper bearing assembly includes a damper housing configured substantially within a U-shaped spring finger housing and a spanner nut with a radial hook portion coupled to the spring finger housing. The damper housing is coupled to the spring finger housing such that it is substantially confined within the U-shaped void. The spanner nut is coupled to the spring finger housing such that the radial hook portion is configured to limit the deflection of the spring finger housing and damper housing during a fan blade out event. | 04-09-2015 |
20150104315 | Fan Blade Root Integrated Sealing Solution - A gas turbine engine, a fan section for a gas turbine engine, and a method for assembling a fan section of a gas turbine engine are disclosed. The fan section may include a fan hub having a slot, a spinner having a castellated spinner seal, a fan blade including an airfoil extending from a root to a tip, wherein the airfoil has a leading edge and the root is received in the slot, and a platform secured to the fan hub and arranged between adjacent fan blades. The fan section may further include a flap seal having a base secured to a side of the platform, and a flap integral with and extending from the base portion and canted toward the root and engaging the blade, the seal trimmed back from the leading edge of the airfoil. | 04-16-2015 |
20150125301 | PLATFORM SEAL STRIP, TURBINE BLADE ASSEMBLY AND METHOD FOR ASSEMBLING IT - A platform seal strip, in particular for use in a gas turbine blade assembly, is provided. The platform seal strip includes an upper side, a lower side, a first portion and a second portion. The width of the first portion is smaller than the width of the second portion. The first portion and the second portion are at least partially bent downwards such that the upper side includes a convex surface portion and the lower side includes a concave surface portion. | 05-07-2015 |
20150139804 | FLOW-BASED POWER GENERATING PLANT WITH TWIST BEARING IN THE BLADE ROOT - A flow-based power generating plant with a turbine, which can be acted on by a fluid flow and having a plurality of blades that extend from a blade base to a blade tip and are fastened by the blade base to a rotating rotor. The action of the fluid flow can cause the blades to twist elastically around an axis which extends through the blade base, in such a way that the pitch of the blades can be increased. The blade base is fastened to the rotor with the interposition of a bearing device and the bearing device is embodied as rigid in terms of tension, compression, bending, and shearing relative to the axis, but is embodied as flexible in terms of torsion, wherein the bearing device has a primary connecting part fastened to the rotor and a secondary connecting part fastened to the blade base, which are connected to each other via a multitude of leaf springs so that the primary connecting part is able to rotate relative to the secondary connecting part through elastic deformation of the leaf springs and the leaf springs are arranged on an essentially circular circumference and have a rectangular cross-section with a longer side and a shorter side, with the longer side extending radially outward with regard to the circumference on which the leaf springs are arranged. | 05-21-2015 |
20150300193 | TURBOMACHINE - A turbomachine of this disclosure includes a rotation shaft, a first impeller, a first bearing, and a second bearing. The first impeller is fixed to the rotation shaft and includes a low-pressure-side surface. The first bearing is adjacent to the low-pressure-side surface of the first impeller and supports the rotation shaft. The second bearing is disposed on an opposite side of the first impeller from the first bearing and supports the rotation shaft. The rotation shaft includes a first tapered portion gradually increasing in diameter toward the first impeller. The first bearing includes a first support surface supporting the first tapered portion. | 10-22-2015 |
20150300322 | REINFORCED PITCH BEARING OF A WIND TURBINE - A reinforced pitch bearing of a wind turbine having a first reinforcement plate and a second reinforcement plate is provided. The pitch bearing includes an outer bearing ring and an inner bearing ring, whereby both bearing rings are arranged coaxially to each other, thus comprising a common axis of symmetry. The first reinforcement plate is arranged at a first axial end of the pitch and the second reinforcement plate is arranged at a second axial end of the pitch bearing. The reinforcement plates are arranged substantially parallel to each other and the pitch bearing includes further means for reinforcement arranged in between the first reinforcement plate and the second reinforcement plate. The invention also relates to a wind turbine having at least one rotor blade and at least one pitch bearing, pivotably connecting the rotor with a hub of the wind turbine. | 10-22-2015 |
20150300406 | COMPACT SQUEEZE FILM DAMPER BEARING - A bearing assembly for a rotary machine is disclosed herein. The bearing assembly includes a bearing housing, a squeeze film cylinder, a damper spring, and a journal bearing. The squeeze film cylinder is located within the bearing housing. The damper spring includes a first portion, a second portion, and a spring portion. The first portion is located proximal the first end. The second portion is located proximal the second end. The spring portion extends axially between the first portion and the second portion and is located within the bearing housing. | 10-22-2015 |
20160032937 | GAS TURBINE ENGINE AXIAL DRUM-STYLE COMPRESSOR ROTOR ASSEMBLY - A gas turbine engine includes an axial compressor which includes a rotor assembly including a first rotor segment with a first inner rim, a first sealing surface, and a first aft engagement feature, and a second rotor segment positioned aft of the first rotor segment and having a second inner rim, a second sealing surface, and a second inner rim with a second fore engagement feature that is complementary to the first aft engagement feature. The first and second sealing surfaces are complementary to each other, and are bonded together via a transient liquid phase diffusion process. The first and second sealing surfaces are disposed on the outer rim. The first aft engagement member may be a notch that is complementary to the second fore engagement feature, which may be a shelf. | 02-04-2016 |
20160069211 | BEARING COMPARTMENT WITH INTEGRATED FLUID LINES - A turbine module comprises a turbine shaft, a rotor assembly secured to the shaft, a bearing assembly rotatably supporting the turbine shaft, a bearing housing containing the bearing assembly, and a bearing compartment containing the bearing housing. A bearing compartment wall has at least one integral fluid supply passage in fluid communication with the bearing housing. The at least one integral fluid passage extends generally longitudinally through the bearing compartment wall. | 03-10-2016 |
20160090871 | LOW LOSS BEARING DRAIN - A turbine module comprises a turbine shaft, a rotor assembly secured to the shaft, a bearing assembly rotatably supporting the turbine shaft, and a bearing housing containing the bearing assembly. The bearing housing includes a gutter at least partially circumscribing the bearing assembly, and a drain disposed proximate a base of the gutter. The gutter includes a first sloped floor portion circumferentially adjacent to the drain. | 03-31-2016 |
20160090966 | WIND TURBINE ROTOR SHAFT ARRANGEMENT - A wind turbine rotor shaft arrangement comprising a shaft supporting wind turbine blades and a non-rotating first housing structure (mounted to a wind turbine nacelle framing) along with a first rolling bearing supporting (in a first axial direction) the shaft to the first housing structure at a first support point. The first rolling bearing is a self-aligning bearing comprising a first inner ring, a first outer ring and a set of rolling elements interposed therebetween. Each roller is asymmetric, having a curved raceway-contacting surface contacting at least one of the curved inner/outer raceways of the first inner/outer ring, respectively. A contact angle between each roller and the respective raceway is inclined respective to the shaft radial direction. A non-rotating second housing structure (mounted to the wind turbine nacelle framing) supports the shaft. A second rolling bearing supports the shaft by the second housing structure at a second support point. | 03-31-2016 |
20160090991 | THRUST BEARING AS A SEAL - A porous media ventless thrust bearing seal is disclosed. The porous media thrust bearing may include a primary porous media thrust bearing also serving as a seal ring including porous media positioned over a plenum and a port connected to the plenum, and conductive passages for communicating pressurized fluid to the plenums through the ports of the primary ring. The porous media ventless thrust bearing may also include a treated process gas supplied to a port which is closest to the untreated process gas, at a pressure which is higher than the untreated process gas. An inert gas (or fluid in a liquid state) may be supplied to the remaining port, at a pressure which is the same as the untreated process gas. A certain amount of treated process gas may flow into the untreated process gas, and may prevent the untreated gas from entering the porous media seal. | 03-31-2016 |
20160097373 | MAGNETIC BEARING SYSTEMS - A bearing system for application in a vertical axis wind turbine including: a first portion, where the first portion includes a threaded female end; a second portion, where the second portion includes a threaded male end, where the male end inserts into the threaded female end; and a cylindrical magnet, where the cylindrical magnet is embedded into a distal end of the opening. | 04-07-2016 |
20160123306 | ROTOR BLADE ASSEMBLY FOR A WIND TURBINE HAVING VARIABLE-LENGTH BLADE BOLTS - The present disclosure is directed to a rotor blade assembly for a wind turbine that controls pitch bearing load distribution. The assembly includes a rotor blade having a body shell extending between a blade root and tip, a pitch bearing at an interface between the blade root and a hub of the wind turbine, and plurality of blade bolts coupling the blade root to the hub through the pitch bearing. The pitch bearing includes an outer bearing race and an inner bearing race rotatable relative to the outer race. Thus, in one embodiment, the blade bolts couple the blade root to the hub through the inner race of the pitch bearing. Further, each of the blade bolts has a first end and a second end defining a length therebetween and at least two of the blade bolts have varying lengths so as to distribute loads experienced by the pitch bearing. | 05-05-2016 |
20160131149 | FAN DEVICE WITH OIL-RETAINING BEARING - A fan device with oil-retaining bearing includes a base seat and an oil-retaining bearing. The base seat has a central tubular section and a bearing cup extending from the central tubular section to one side. The bearing cup has an internal bearing hole. The central tubular section has at least one mating section in adjacency to the bearing hole. The oil-retaining bearing is disposed in the bearing hole. The oil-retaining bearing has at least one connection section mated with the mating section. The connection section and the mating section are mated with each other so that the oil-retaining bearing is securely disposed in the bearing hole. In addition, the operation of the shaft will not be affected due to the press fit and the difficulty in controlling the glue dispensing process. | 05-12-2016 |
20160138604 | ROTOR FOR A CENTRIFUGAL FLOW MACHINE AND A CENTRIFUGAL FLOW MACHINE - A rotor structure for a centrifugal flow machine includes working vanes attached to the hub of the rotor without any support disc or shroud. Additionally, the vane has a device for efficiently flushing the sealing chamber behind the rotor. | 05-19-2016 |
20160169024 | IMPELLER HAVING A RADIAL SEAL FOR A TURBINE ENGINE TURBINE | 06-16-2016 |
20160178001 | DOUBLE-ROW SPHERICAL ROLLER BEARING, MANUFACTURING METHOD AND WIND TURBINE BEARING ARRANGEMENT | 06-23-2016 |
20160178002 | DOUBLE-ROW SPHERICAL ROLLER BEARING | 06-23-2016 |
20160201720 | DOUBLE-ROW SPHERICAL ROLLER BEARING | 07-14-2016 |
20160377061 | Turbine Main Bearing Lubrication - A greased-based lubrication system for a main bearing arrangement of a wind turbine can be replaced with an oil-based lubrication system by: disconnecting an upwind bearing cover | 12-29-2016 |