Abstract: This new ceiling fan is designed to improve functionality of the airflow and to decrease the obtrusive appearance of the traditional axial ceiling fan by incorporating the lower profile airflow technology of a centrifugal fan. The main advantages are that it is much smaller with a lower profile that is mounted flat against the ceiling and can have more focused directional airflow thus enabling a user to feel more air circulation in the specific area of the room. The fan can also be set to oscillate around the room for more diffuse air circulation. Low profile lighting kits can be designed into the lower cover. This new design should be easily mountable on existing ceiling fan electrical boxes. Ideally it could be controlled with the same remote control technology available today for floor standing oscillating fans.

Abstract: A gas turbine engine includes an engine core, a power gearbox, and a lubrication system. The engine core is configured to drive rotation of at least one shaft. The power gearbox is configured to transfer torque from the at least one shaft to other parts of the gas turbine engine. The lubrication system is configured to deliver lubrication to the power gearbox to reduce friction and cool rotating components within the power gearbox.

Abstract: A blade 20 for a horizontal-axis wind turbine rotor comprises a radially-outer, energy-extraction portion 32 and a radially-inner, ventilation portion 30. The radially-inner ventilation portion 30 is shaped to ventilate a central area 34 of a wake of the rotor during use such that it contains more kinetic energy compared to the wake from a conventional rotor design. The increased wind flow velocity at the centre 34 of the wake generates additional shear stresses, with corresponding turbulence development, which gives rise to increased wake diffusion.

Abstract: A site-specific customizable nacelle for a wind turbine includes a plurality of walls arranged together to form an inner volume. The walls include a base wall, side walls, a front wall, a rear wall, and a top wall. Each of the walls is constructed of one or more outer skin layers positioned adjacent to one or more inner skin layers and infused together via a resin material. Further, the nacelle includes a plurality of reinforcement members secured to one or more of the plurality of walls on an interior side or an exterior side of at least one of the one or more outer skin layers or the one or more inner skin layers at locations requiring additional reinforcement. As such, the reinforcement members can be tailored according to a particular wind turbine site.

Abstract: Provided is a rotary machine including a rotating resinous impeller, a rotary shaft penetrating the impeller, and a fastening portion screwed to the rotary shaft, in which the rotary shaft includes a penetrating shaft portion facing an inner peripheral surface of the impeller, a tip shaft portion screwed to the fastening portion, and a fastening reception portion sandwiching the impeller between the fastening reception portion and the fastening portion, the penetrating shaft portion has a non-circular portion and an outline of a cross section of the non-circular portion orthogonal to a rotational axis deviates from a perfect circle about the rotational axis, and the impeller includes a connecting portion engaging with the non-circular portion.

Abstract: A cooling circuit to receive a cooling fluid includes at least one shaped cooling pin disposed in the cooling circuit. The at least one shaped cooling pin has a first end and a second end extending along an axis. The first end has a first curved surface defined by a minor diameter and the second end has a second curved surface defined by a major diameter. The first curved surface is to be upstream in the cooling fluid and the minor diameter is less than the major diameter.

Abstract: A balance system for an assembled engine includes a rotor mounted on a shaft for rotation within an engine casing having an inner case and an outer case; and a weight system mounted on the shaft of the rotor and having at least one weight positionable relative to the rotor around a circumference of the shaft; wherein the inner case has an inner access port, the outer case has an outer access port, and the inner access port, the outer access port and the weight system are positioned on the same radial plane of the rotor, whereby the weight system can be accessed through the outer port and the inner port to adjust circumferential position of the at least one weight relative to the rotor.

Abstract: A fan includes a fan frame, an impeller, and at least a supporting member. The fan frame includes a bottom plate and a cover plate spaced from the bottom plate. The bottom plate and the cover plate together define a first accommodating space. The cover plate has an air inlet disposed in an axial direction. A side of the fan frame is provided with at least an air outlet. The impeller is disposed in the first accommodating space and includes a hub and a plurality of blades. A cross-sectional area of the hub increases gradually along a direction from the cover plate to the bottom plate. The blades are disposed around the periphery of the hub. The supporting member is disposed between the bottom plate and the cover plate for supporting the cover plate.

Abstract: Disclosed are a blade ring segment for a turbine section, a turbine section having the blade ring segment, and a gas turbine having the turbine section. Multiple blade ring segments is installed in a turbine casing accommodating turbine blades rotated by combustion gas from a combustor. The blade ring segment includes an inner panel provided in the turbine casing and having multiple air holes through which cooling air fed from the outside of the turbine casing flows, an outer panel disposed on one side of the inner panel, and a cooling structure protruding from one side of the outer panel so as to form a flowing channel in a zigzag pattern so that cooling air fed through the air holes flows therethrough.

Abstract: A variable-nozzle turbocharger includes a variable-vane mechanism that has an annular nozzle ring supporting an array of rotatable vanes, an insert having a nozzle portion axially spaced from the nozzle ring, and a plurality of spacers connected between the nozzle portion of the insert and the nozzle ring for maintaining an axial spacing between the nozzle portion of the insert and the nozzle ring. The spacers are structured and arranged to mechanically stop the vanes from rotating in one direction past a maximum-open position and to mechanically stop the vanes from rotating in an opposite direction past a minimum-open position of the vanes.

Abstract: A system and a method for removing debris from a flow path of a cooling flow is provided. The system includes a turbine including at least one airfoil. A cooling flow is communicated to cooling holes via piping that includes a dead leg debris extractor in order to cool the airfoil. The dead leg debris extractor includes a means to capture and retain debris from the cooling flow continuously during online operation of the turbine.

Abstract: A cover plate for maintaining axial alignment between a blade assembly and a rotor disk and transferring centrifugal loading directly to the rotor disk. The cover plate comprises a plate key extending axially from an elongate member, the plate key configured to engage a keyway of the rotor disk assembly and/or a notch of the blade key.

Abstract: A fire protection system for a gas turbine engine is disclosed. In various embodiments, the system includes a first fire blanket wall and a second fire blanket wall, the first fire blanket wall configured for attachment to a first fairing wall and the second fire blanket wall configured for attachment to a second fairing wall, and an attachment system configured to attach the first fire blanket wall to the first fairing wall and the second fire blanket wall to the second fairing wall.

Abstract: A core element of an investment core for use in a casting process used to produce an airfoil includes an investment core body, an extension connected to and protruding from the investment core body, and a connection portion connected to the investment core body and to the extension. The investment core body comprises a ceramic material. A shape of the extension comprises a tube with a centerline axis passing through a center of the extension. A shape of a cross-section of the extension taken along a plane perpendicular to the extension centerline axis comprises an ellipse. The extension is connected to the investment core body by the connection portion.

Abstract: A wind turbine blade comprises an external skin comprising tensioned fabric supported along a majority of the length of the wind turbine blade by two or more elongate fabric supporting members. The external skin is connected to each of the two or more elongate fabric supporting members.

Abstract: A bushing assembly for receiving a fastener includes a first bushing portion and a second bushing portion arranged coaxially with the first bushing portion. The second bushing portion defines at least part of an opening for receiving the fastener. The second bushing portion is rotatable relative to the first bushing portion about an axis of rotation to adjust a position of the opening about a first axis and a second axis independently relative to the first bushing portion and the second bushing portion. The first axis is coplanar with and perpendicular to the second axis.

Abstract: A gas turbine engine component includes an airfoil that has pressure and suction side walls that extend in a chord-wise direction between a leading edge and a trailing edge. The pressure and suction side walls extend in a radial direction between a platform and a tip to provide an exterior airfoil surface. A cooling passage is arranged between the pressure and suction side walls and has a first passage along the pressure side wall and a second passage along the suction side wall. The first passage is configured to receive cooling air from a cooling air source. The second passage is configured to receive cooling air from the first passage near the tip. A platform passage is arranged in the platform and is configured to purge the cooling air from the second passage near the trailing edge.

Abstract: The invention relates to a sealing assembly for a turbine engine, comprising a wheel mounted inside a sectorised ring carrying an abradable material, having at an axial end an annular groove (14) in which a circumferential rail of the casing is engaged, sealing members being partly engaged in a recess (19) of a circumferential edge of a ring sector and another part thereof being engaged in a recess of a circumferential edge circumferentially opposite a circumferentially adjacent ring sector, characterised in that each sealing member comprises an axial end portion (180a) arranged radially between the circumferential rail and two adjacent ring sectors.

Abstract: A centrifugal compression test device includes a flow path forming section and an inlet space forming section. The flow path forming section forms an introduction flow path, an inlet flow path, and an interstage inflow path. The introduction flow path guides a fluid from the outside toward the inside in the radial direction. The inlet flow path is connected to the introduction flow path. The interstage inflow path extends from the outside toward the inside in the radial direction and is connected to the inlet flow path. The inlet space forming section is formed an annular shape having an introduction opening section through which a fluid is introduced from a part in the circumferential direction and the outside in the radial direction at the first side of the introduction flow path. Further, a front end of the introduction flow path is connected to the inlet space forming section.

Abstract: A frangible strut for a gas turbine engine includes a first end to couple to a first structure of the gas turbine engine, and a second end opposite the first end. The second end is to couple to a second structure of the gas turbine engine. The second end includes an outer portion coaxial with and spaced radially apart from an inner portion. The inner portion is to receive a fastening device to couple the second end to the second structure. The outer portion is coupled to a body of the frangible strut. The inner portion is interconnected to the outer portion by a plurality of frangible members that are spaced apart about a perimeter of the inner portion, and each of the frangible members are configured to release the inner portion from the outer portion. The frangible strut includes the body interconnecting the first end and the second end.