Abstract: An improved configuration for a bearing housing assembly is disclosed herein in which a ring can be configured to be secured in at least two positions such that the bearing assembly positioned inside of the housing can be retained in either a fixed state or a floating state. The ring can be configured to be secured at least partially within the housing in at least a first configuration and a second configuration, such that: (i) the ring is configured to abut the bearing assembly in the first configuration such that the bearing assembly is axially fixed relative to the housing, and (ii) the ring is configured to be spaced apart from the bearing assembly in the second configuration such that the bearing assembly is axially displaceable within the housing.

Abstract: An excavation apparatus comprises a controlled flow underwater excavation apparatus. A housing thereof comprises at least one inlet and at least one outlet. The at least one inlet is provided on or at a side of the housing. A fluid flow path extends from the/each at least one inlet to the outlet. The fluid flow path comprises a first portion provided at or adjacent the/each at least one inlet. The first portion is included at a non-300 angle, e.g. is substantially perpendicular, to or converges towards a longitudinal axis of the housing and substantially straight. A second portion extends or continues from the first portion. A third portion extends or continues from the second portion. The third portion is substantially straight, contains at least part of a rotor, and is divergent away from the longitudinal axis of the housing in a flow direction from the inlet to the outlet.

Abstract: A support plate for an engine casing includes an anti-rotation rib abutting an outer flange wall of the casing and a misalignment tab extending radially outwardly from the anti-rotation rib. The support plate has a support plate hole configured to be aligned with one flange hole of a flange of the casing.

Abstract: A rotary device includes a housing; an impeller provided in the housing; a rotor disposed at a rear of the impeller, and configured to rotate; a stator disposed to surround the rotor; a bearing at the rear of the impeller, and configured to relieve friction caused by rotation of the rotor while supporting the rotor when the rotor is rotated; and a fan mounted to an outside of the housing, and configured to introduce external air into an inside of the housing and, after the external air is heated while travelling on a cooling flow path, release the external air to the outside of the housing.

Abstract: The present invention relates to a rotating machine and a hoist. An object of the present invention is to provide a rotating machine and a hoist with improved cooling performance. A motor (10) includes: a stator (11) and a rotor (12); a rib part (12d) that rotates in accordance with rotation of the rotor (12), and a wind guide member (16) that guides wind taken in from a ventilation inlet (15aa) by rotation of the rib part 12d to a ventilation outlet (15ab).

Abstract: Various systems are provided for an axially split turbocharger case housing each of a turbine of a turbocharger, a compressor of the turbocharger, and a bearing of the turbocharger. In one example, an apparatus for an engine includes a first monolithic component and a second monolithic component that, when coupled together, form a turbocharger case configured to house each of a turbine, a compressor, and a bearing, the first and second monolithic components, when coupled together, also forming a compressor shroud and a turbine shroud. In further examples of the system, portions of the turbocharger case are formed of a lattice structure.

Abstract: A method of assembling a rotor is provided, in which each rotor disk comprising a connecting element. The method includes: (a) applying heat to a localized region of a first rotor disk of a plurality of rotor disks to selectively deflect a first connecting element of the first rotor disk, wherein the first rotor disk is stationary during heating; (b) installing the first rotor disk onto a rotor stack containing at least one rotor disk; and (c) repeating steps (a) and (b) for each rotor disk of the plurality of rotor disks; and (d) allowing the rotor disks, when stacked, to cool. When cooled, the respective connecting element of each rotor disk that has been selectively deflected contracts into an interference fit with an adjacent rotor disk. A system for selectively heating a localized region of a rotor disk is also provided.

Abstract: An aircraft turbojet engine low-pressure compressor or booster, comprising an inlet structure de-iced by a pressurized hot fluid circulation coming from the high-pressure compressor. The de-icing structure comprises a deformable membrane through the thickness of which the pressurized fluid circulation passes. When there is a build-up of ice on the membrane, the pressurized fluid circulation is blocked, resulting in its pressure deforming the membrane in such a manner as to crack the build-up of ice.

Abstract: A design for a casing of a large turbine is described with the casing including at least a front section, a middle section and an end section designed such that changes to the mold of the casing required to provide for a change in rotational speed to adapt the turbine to a different power grid frequency are limited to the mold for the middle section of the casing.

Abstract: A system includes a turbomachine platform including a first docking guide. The turbomachine platform supports a turbomachine skid, and the skid includes a second docking guide. The first docking guide is configured to interface with the second docking guide in order to guide the turbomachine skid between a docked position and an undocked position relative to other equipment supported by the platform.

Abstract: A wire arrangement mechanism including a guiding slot and an arranging slot is formed on a fan frame. The guiding slot includes a bottom wall and two holding walls extending therefrom. The arranging slot is defined by an outer frame and a confining portion connected thereto. The arranging slot is staggered from and communicated with the guiding slot.

Abstract: A ventilator includes a body casing having an opening formed in its lower portion and an exhaust port formed on one side; a fan that is provided in the body casing, for sucking indoor air from the opening and exhausting the indoor air from the exhaust port; a resin fan casing that has a suction port and forms an air passage of the fan; a protection frame formed outside the air passage to cover a terminal block provided outside the air passage; a resin terminal block cover that watertightly seals a protection frame opening of a lower portion of the protection frame and is opened and closed; a sheet-metal case that is provided in the protection frame and stores the terminal block; and a sheet-metal terminal block cover that opens and closes a lower opening of the sheet-metal case.

Abstract: A method of minimizing the flow of hydraulic fluid within a hydraulic accumulator mounted in the rotating hub of a wind turbine comprises mounting the accumulator within the hub such that the longitudinal axis of the accumulator is substantially parallel with the axis of rotation of the hub.

Abstract: The invention provides a ring, rotatable duct, shroud, fuselage or cylindrical external wall fabricated so as to have desirable strength even if its diameter exceeds about 2.7 meters by using arbitrary metallic and non-metallic materials. Such ring and others may be readily fabricated by laminating a thin sheet band made of metal, ceramics, cermet, fiber or synthetic resin of 0.01 mm to 5 mm thick or a thin sheet band made of rubber or silicon of 0.1 mm to 50 mm thick by winding around a giant spinning wheel by at least two rounds or more so as to form a longitudinal plate portion of 2 mm or more in radial thickness when the band is made of metal, ceramics, cermet, fiber or synthetic resin and to form such portion of 4 mm or more thick when the band is made of metal, ceramics, cermet, fiber, synthetic resin, rubber or silicon.

Abstract: A maintenance apparatus is provided for use with a wind turbine that has a tower, a hub supported by the tower, and a plurality of blades extending outwardly from the hub. The maintenance apparatus has a mounting element that is configured to be secured to the tower and to be selectively movable along the length thereof. A robotic arm is coupled to the mounting element, and a blade-engaging device is coupled to the robotic arm and is configured to engage one of the blades to effect a maintenance task thereon.

Abstract: A nacelle for a wind turbine comprises a plurality of walls connected with each other to define an internal space of the nacelle. A support beam is disposed at an inner surface of the connecting area of at least one set of contiguous walls of the plurality of walls, and a portion of the support beam contacting the contiguous walls has a shape mating with that of the inner surface of the connecting area. The nacelle for a wind turbine is simple in structure, convenient to transport, easy to assemble and strong in the mechanical connecting strength.

Abstract: A turbine nozzle insert of a gas turbine engine is disclosed. The insert may comprise an elongated hollow body portion, a flange portion formed at a first end of the elongated body portion, and a contact portion formed at a second end of the elongated body portion opposite the first end.

Abstract: A gas turbine engine case has a metallic composite boss mounted thereto. The boss may have a main metal injection molded (MIM) part, and a separately formed flange part integrated to the main MIM part and projecting laterally outwardly therefrom. The MIM part and the flange part may be made of different materials. The material of the flange part is selected to provide a suitable mounting interface with the gas turbine engine case.

Abstract: A centrifugal water pump for use in a diesel engine cooling system provides an improved water pump construction including multiple features which combine to provide increased operating life for the supporting and wearing components of the pump. The improvements include one or more of: a water seal system is provided having a stationary seal and a rotating seal made of silicon carbide with at least one of the seals having embedded lubricant; an o-ring added to the stationary seal ensures that pressurized water does not get past the stationary seal; metallic bearing seals and covers to prevent leeching of the lubricant from the bearing; optimized spring force on the rotating seal; tapered shaft impeller interface to minimize torsional stresses on these components from the keyway design of the prior art; and the housing engine oil inlet is removed to prevent the direct flow of hot, dirty, and contaminated oil from damaging the water pump bearings.

Abstract: A weld set-up and weld process are provided that alleviate micro-cracking as between a pair of welded pieces. The weld set-up is provided in which the weld pieces are configured to cause micro-cracking to occur in a portion of the welded pieces that is then removed by post-processing machining techniques. This weld set-up includes a primary weld piece and a secondary weld piece with a flange portion that extends over the primary weld piece. When used in conjunction with electron beam welding, application of the weld beam onto the secondary weld piece causes the formation of a preferential nailhead that is formed exclusively in the first weld piece.

Abstract: A pump suction assembly comprising a suction sheet having a receiving hole, a flat central section, a first outer section and a second outer section extending away from the central section at an angle; a pipe having a bend, an inlet portion having at least one vortex flat and directed toward and at least partially disposed in the receiving hole and flush with a bottom of the suction sheet; a tank having a base; at least one standoff arranged to support the first outer section at a perimeter of the first outer section; at least one standoff arranged to support the second outer section at a perimeter of the second outer section; and at least one standoff arranged to support the central section, wherein the inlet portion is directed toward and proximate to the base.

Abstract: A fluid catchment system for a wind turbine is provided. The wind turbine has a nacelle mounted to a tower. The fluid catchment system includes at least one fluid accumulator in fluid communication with the interior of the nacelle and configured to receive fluid exiting from the nacelle. The fluid accumulator is configured to be positioned at least partially beneath the nacelle and to be attached to at least one of the tower and the nacelle. An oil absorbent material may be retained by the fluid accumulator. A fluid collector may be provided to collect fluid from the fluid accumulator. A fluid catchment system having a fluid accumulator located on a wind turbine blade is also provided. Further, a wind turbine including a fluid catchment system is provided.

Abstract: The present application provides a rotor coupling guard for use with removing a flow of air about a rotor coupling of a turbo-machine. The rotor coupling guard may include an inner cover with a number of apertures surrounding the rotor coupling and an outer cover surrounding the inner cover. Rotation of the rotor coupling forces the flow of air through the apertures in the inner cover and away from the rotor coupling.

Abstract: The invention relates to the field of free turbines mounted on a gas turbine engine. It provides a fastener device for fastening a free turbine stator on a gas generator casing that shares a common axis with the turbine stator, the fastener device comprising a flange carrying a plurality of assembly parts providing a first releasable connection between the turbine stator and the gas generator casing, the flange providing first centering of the turbine stator on the casing. The fastener device further comprises a second releasable connection between the turbine stator and the gas generator casing that is axially offset from the flange towards the gas generator and that provides second centering of the turbine stator on the casing.

Abstract: A wind turbine blade inspection system includes a frequency modulated continuous wave radar system configured to be movable with respect to a wind turbine blade while transmitting reference microwave signals and receiving reflected microwave signals and a processor configured for using a synthetic aperture analysis technique to obtain a focused image of at least a region of the wind turbine blade based on the reflected microwave signals.

Abstract: A system is provided that includes a first turbine alignment component for a turbine engine; and a shim comprises a metal foam. The shim mounts between a first surface of the first turbine alignment component and a second surface of a second turbine alignment component.

Abstract: A handling system for a wind turbine nacelle in connection with self-loading or self-unloading of the nacelle to or from a vehicle. Two or more lifting apparatus are provided for displacing the nacelle substantially vertically during the self-loading or self-unloading of the nacelle. The lifting apparatus has displacing apparatus for displacing the lifting apparatus or a part of the lifting apparatus. A method for transport of a wind turbine nacelle, a method for vertical displacement of a wind turbine nacelle, and use of a handling system, are also disclosed.

Abstract: A handling system for a wind turbine nacelle in connection with self-loading or self-unloading of the nacelle to or from a vehicle. The system uses two or more lifting apparatus, where the lifting apparatus are engaged with lifting areas of a load carrying structure of the nacelle. The lifting areas are a part of the load carrying structure or are integrated in the load carrying structure, and where the lifting apparatus lifts by applying linear force to the load carrying structure of the nacelle. A method is also provided for vertical displacement of a wind turbine nacelle and a wind turbine nacelle prepared for self-loading or self-unloading to or from a vehicle.

Abstract: A stackable nacelle for a wind turbine includes a first piece having a top wall and integral first side walls extending at a first obtuse angle from each edge of the top wall; and a second piece, for mating with the first piece, having a bottom wall and integral second side walls extending at a second obtuse angle from each edge of the bottom wall.

Abstract: A ceiling-embedded ventilation fan includes: a casing provided in a box-shape frame inserted and mounted in a ceiling and having an opening facing an indoor side in a lower face thereof, the casing having a side face formed in a scroll shape and set in a vertical direction, the casing further having a casing intake port in the lower face of the frame and a casing discharge port in a side portion of the frame; a centrifugal blower blade housed in the casing and having a blade intake port facing the casing intake port; and an electric motor which rotates the centrifugal blower blade, wherein the centrifugal blower blade is provided so that an upper side of an axial center thereof is tilted in a direction toward an upstream side of a centrifugal airflow based on a center line of the casing intake port in a direction orthogonal to the casing discharge port.

Abstract: A method for laser shock processing a device, including a metallic body having a surface, comprises conformally applying a compliant solid material to the first region on the surface of the metallic body and applying a layer of ablative material to the second region on the surface of the metallic body. A damping liquid is flowed over the layer of ablative material. An array of pulses of laser energy is directed through the damping fluid to impact the layer of ablative material on the surface and peen the surface in the second region. The pulses induce pressure waves within the metallic body which propagate to the surface in the first region. The compliant solid material acts as a momentum trap, so that the acoustic waves are at least partially coupled into the compliant solid material and attenuated outside of the metallic body.

Abstract: A clamping assembly comprising a bearing support member (16), the bearing support member being clampable to a shaft (2) by virtue of a clamping member (24) adaptable to tighten the bearing support member to the shaft, wherein at least a portion (16?) of the bearing support member (16) is disposable between a first abutment surface (28) provided on the clamping member and a second abutment surface (25) provided on the shaft; and wherein the portion (16?) of the bearing support member (16) comprises one or more protrusions (30) and one or more depressions (32) provided on an end face (16a, 16b) of the portion of the bearing support member, the protrusions and depressions being arranged to interface with one or more corresponding depressions (36) and protrusions (34) provided on one of the first abutment surface of the clamping member and the second abutment surface of the shaft, the respective protrusions and depressions being disposed so as to resist relative rotation between the shaft and the bearing support

Abstract: An air blowing device for cooling an internal combustion engine of a vehicle tested on a roller bench, including an air blowing fan configured to blow air towards the air intake opening provided on the vehicle to direct an air stream towards members cooling the engine, including a nozzle arranged between the outlet opening of the air blowing fan and the opening provided on the vehicle. The nozzle has a cross-section relative to the air stream gradually tapering between the outlet opening of the fan and the inlet opening of the vehicle. The nozzle includes two side walls each having an opening allowing a strap to pass, wherein one of the ends is configured to be attached to the vehicle and the other end is configured to be attached to a fixed vertical wall arranged proximate the outlet of the fan.

Abstract: The present disclosure is directed to a system and method of sustainable economic development, such as development through an integrated production of renewable energy, material resources, and nutrient regimes. In some embodiments, the system utilizes resources extracted from renewable energy sources to assist in the capture of energy from other renewable energy sources. In some embodiments, the system utilizes energy from renewable energy sources to extract resources from other renewable energy sources.

Abstract: A hydrokinetic turbine system, including a plurality of hydrokinetic turbines is installed on a bed of a body of water. Each turbine has a shroud with a forward entrance portion and rear exit portion. The shroud includes a propeller disposed in a middle portion thereof. An inner surface of the shroud includes a plurality of rifling vanes formed therein to induce water entering the forward entrance portion to rotate in a vortex-like fashion. A plurality of pre-spin guard blades disposed adjacent the forward entrance portion also induce rotation of water and serve to provide a barrier preventing objects from passing into the forward entrance portion. A plurality of stabilizers extending from an exterior surface of the shroud that position the forward entrance portion in the direction of current flow.

Abstract: The invention relates to a balancing device comprising a nut 15 having an internal thread, and a countersunk collar 17 integral with said nut 15, said countersunk collar 17 having a through-hole 23 with a diameter greater than the diameter of the internal thread of the nut 15. Said countersunk collar comprises a balancing weight 19. The invention also relates to a method for balancing a rotating part 1 with such a device, and a rotating part 1 balanced by such a device.

Abstract: A gas turbine engine including a first shaft being one of a main shaft concentrically mounted to at least one turbine rotor and a tower shaft directly driven by the main shaft and extending generally radially therefrom, the first shaft having a reduced diameter portion located within the gas turbine engine, an electrical assembly having a rotor comprising permanent magnets retained on an outer surface of the reduced diameter portion and a stator comprising a magnetic field circuit disposed adjacent an outer periphery of the rotor, and an electrical connection between the magnetic field circuit and at least one of a power source and an electrically drivable accessory.

Abstract: An assembly for preventing damage to bearings of a gas turbine engine during transportation is provided. The assembly comprises a turbofan gas turbine engine having an engine casing and at least one turbine shaft supported by a plurality of bearings, and, a brace secured relative to the engine casing and biasing the shaft along an axial direction of the shaft.

Abstract: Offshore wind turbine (14) including a tower (1) rising above sea level (12) and one or ore blades (4), which can be put into rotation by wind. The offshore wind turbine includes a pump (6), which is adapted to pump sea water (13) up form the sea. At the delivery side the pump (6) communicates with nozzles (8, 9), said nozzles being adapted to direct sea water to the surface of the blades (4).

Abstract: A protection arrangement for a wind turbine including a tower, a machine nacelle having a yaw drive and a mounting hole into which an upper end of the tower extends, and a rotor having at least one rotor blade and a hub is provided. The protection arrangement includes a drip pan having a rim surrounding the mounting hole and adapted to collect grease from an interior of the machine nacelle and a flexible collar adapted to fit around the upper end of the tower and having an outer diameter being larger than the diameter of the mounting hole of the machine nacelle. The flexible collar is adapted to pass through the mounting hole into the interior of the machine nacelle.

Abstract: A centrifugal pump for abrasive fluid. The pump may include a bearing housing mounted to a tank containing an abrasive fluid. The bearing housing may house wear-susceptible components in a manner distancing and isolating the components from the fluid. A shaft may be coupled to the bearing housing and disposed through the tank to an impeller for dispensing the abrasive fluid beyond the centrifugal pump. Additionally the impeller itself may be housed within an impeller housing that is mechanically coupled to the bearing housing in order to enhance dimensional stability therebetween. Such a centrifugal pump may be coupled to other pumps such as higher pressure positive displacement pumps. In these circumstances the centrifugal pump may be used to facilitate the mixing of the abrasive fluid and provide a degree of pressurization thereto in advance of the fluid's use at an operation site.

Abstract: A shaft for a gas turbine engine is provided that includes a first shaft section, a second shaft section, a first flexible linkage, and a second flexible linkage. The first shaft section extends between a forward axial end and an aft axial end along a first axial centerline. The second shaft section extends between a forward axial end and an aft axial end along a second axial centerline. The first flexible linkage includes a bridge section connected between a first diaphragm and a second diaphragm. The first diaphragm is connected to the aft axial end of the first shaft section. The second diaphragm is connected to the forward axial end of the second shaft section. The second flexible linkage includes a diaphragm and a hub. The second flexible linkage diaphragm cantilevers radially outwardly from an inner radial end to an outer radial end, and is connected to the aft axial end of the second shaft section.

Abstract: A service tube apparatus for a gas turbine engine includes a service tube assembly having: (a) an elongated, hollow service tube; and (b) a service tube baffle surrounding the service tube which is pierced with a plurality of impingement cooling holes.

Abstract: A method for mounting components at a wind turbine support unit of a wind turbine is provided. The method includes the steps of providing a captive bolt gun, providing a fastening means, inserting a captive bolt into the fastening means, and shooting the captive bolt into the wind turbine support unit by means of the captive bolt gun such that the fastening means is fixed at the wind turbine support unit.

Abstract: Resting element (10) for a compressor or turbine comprising a first cantilever resting portion (20) and a second fixing portion (30) to a case of the compressor or turbine by means of a series of screws (60), the second fixing portion (30) comprises a third end portion (32) externally axial symmetrical and also a fourth counter-portion (36) situated between the third portion (32) and the first resting portion (20) to prevent the disengagement of a hauling rope.

Abstract: The device for rotationally locking a clamping nut for a component on an end of a hollow shaft, said clamping nut being screwed inside said shaft and having a free end, comprising: at least one shaft cutout on the radially inner periphery of said end of the shaft, at least one nut cutout on the radially outer periphery of an end of said clamping nut, and a locking plug intended to be placed in a locking hole formed by bringing a shaft cutout into coincidence with a nut cutout.

Abstract: Apparatus for lateral fitting and removing of a compressor barrel into and out of a casing of a turbocompressor, the barrel having an inner core section with split disks which are bolted together coaxially, a cap rotatably mounted on a bearing block, and a rotor, wherein the disks are bolted to the cap and the rotor, and wherein the casing is vertically split and has a suction connection and a pressure connection. A support arm has a proximal end which can be releasably connected to the bearing block and a distal end which extends beyond the rotor and is displaceably supported on the casing when the proximal end is connected to the bearing block. A support device can be releasably mounted to the bearing block oppositely from the support arm, the supporting device being movable laterally on a guide to move the barrel into and out of the casing.

Abstract: A gas turbine engine and method of fabrication includes a gas turbine engine with a structure having movable portions and static portions. At least a portion of the structure includes a composite material having an electrically conductive path formed from carbon nanotubes configured for conducting electrical signals therealong.

Abstract: A shaft for use in a wind energy system is provided, with the shaft comprising a hollow shaft body; a cable fixation being connected to the hollow shaft body and extending axially in the hollow shaft body, the cable fixation being adapted for fixing a cable bundle; and a tensioner being adapted for tensioning the cable fixation in an axial direction of the hollow shaft body. Further, a fixation device and a wind energy system are provided. Furthermore, a method for constructing a fixation device for use in a wind energy system is provided.

Abstract: A turbocharger is disclosed that includes a compressor, a turbine connected to the compressor by a mechanical shaft, and a fluidic drain valve in flow communication with an air bleed port of the compressor and an exhaust plenum to drain water accumulated inside the turbocharger such that water accumulated in the exhaust plenum is drained during shutdown when no air from the bleed port flows through the fluidic drain valve.