Abstract: A wall ring for a fan, with a fan wheel, includes at least one heating element for heating the wall ring. The heating element includes an electrically conductive heating layer which is disposed on the inner side of the wall ring facing the fan wheel. The electrically conductive heating layer of the heating element may be configured as an electrically conductive CNT coating having carbon nano-materials.

Abstract: A measurement method for early detection of damage to a blade of an impeller of a turbine is provided. During operation, in a rotational direction of the blade along a circumference which surrounds the impeller, at a plurality of points, in each case a plurality of magnetic fields are generated next to one another substantially in an oscillation direction of the blade, which magnetic fields are influenced by a tip of a turbine blade during transit. Positional values of the tip are detected by at the plurality of points. A positional profile of the turbine blade is then formed from the positional values and a frequency is determined from the positional profile. The frequency is compared with defined frequency values. An alarm event is recognized in case of a sudden and/or pronounced change in the frequency. In addition, a turbine is provided which is configured to carry out the method.

Abstract: A wind turbine having a rotor blade geometric design which reduces blade loads in particular, blade root bending moments, tilt moments and yaw moments.

Abstract: A propeller position changing device which is capable of changing position according to cruise conditions of a vessel of a floating type.

Abstract: Turbochargers typically have separate hydrodynamic journal and thrust bearings. A turbocharger thrust bearing for a turbocharger is provided that merges the function of a journal bearing into a thrust bearing while maintaining the thrust bearing function to produce a turbocharger with a reduced axial space envelope. Such a thrust bearing includes a bore contoured to have a plurality of taper-land pairs distributed circumferentially about the bore. As a result, the axial length of the turbocharger bearing housing and shaft can be reduced.

Abstract: Wind turbine blade comprising a spar, a plurality of ribs rotatably mounted on said spar, and a rotating means adapted to rotate at least two consecutive ribs independently of each other. The blade can thus be operated so as to rotate at least two consecutive ribs independently of each other, although it is also possible to jointly rotate all the ribs.

Abstract: The present invention relates to a reinforced blade for a wind turbine, particularly to a blade having at least one elongated reinforcing member connected inside the shell for increasing the strength of the blade, each of the at least one elongated reinforcing member having a first end and a second end and extending in a longitudinal direction between the first end and the second end and wherein the first end is connected to the upper part of the shell and the second end is connected to the lower part of the shell thereby decreasing peeling and shear stresses in the trailing edge of the blade.

Abstract: A housing for a turbocharger includes a first outer surface, a second outer surface opposite the first outer surface, and a mounting hole extending between the first outer surface and the second outer surface. The mounting hole includes a first end opposite a second end and a counterbore formed at the first end. The counterbore includes threads that are configured to engage with threads on a shank of a lifting device. The mounting hole also includes a throughbore extending from the counterbore to the second end and configured to receive a fastener for mounting the turbocharger housing. The counterbore forms a first opening through the first outer surface of the turbocharger housing, and the throughbore forms a second opening through the second outer surface of the turbocharger housing. The mounting hole is configured to receive only one fastener or shank at a time.

Abstract: A brush seal system for sealing a gap between components of a thermal gas turbine that may be moved relative to one another includes a gas seal housing that receives at least one brush head of a brush seal and a support element by means of which a brush packet projecting from the brush head of the brush seal may be supported against flexing. The support element and the brush seal housing are embodied as separate components. The invention furthermore relates to a method for producing such a brush seal system and to a thermal gas turbine having such a brush seal system.

Abstract: A system for attaching a probe to a casing of a gas turbine engine is disclosed. The system may include a probe receptacle attachable to the casing. The probe receptacle may include an internal bore, a bayonet slot, a spring disposed within the internal bore adjacent to the bayonet slot, and a sealing surface within the internal bore. The system also may include a probe attachment assembly disposed about the probe and configured to engage the probe receptacle. The probe attachment assembly may include at least one bayonet positionable within the bayonet slot and a seal positionable adjacent to the sealing surface within the internal bore.

Abstract: A hub assembly permits a rotor portion of a horizontal axis, fluid-driven turbine (e.g., with three or more blades) to teeter relative to a hub shaft. An outer hub member configured to receive turbine blades is permitted to rotate relative to the inner hub member. Multiple rocker members interposed between the inner hub member and the outer hub member include curved end surfaces that are configured to permit pivotal movement between the rocker members and corresponding features protruding from a hub shaft of the inner hub member. Torque receiving surfaces associated with features protruding from the hub shaft are permitted to slide relative to torque transmitting surfaces of the rocker members.

Abstract: A lightning protection system for a tower of a wind turbine is provided. The tower includes a reinforced concrete tower wall in which a plurality of electrically conductive structural reinforcing elements are embedded during construction. The lightning protection system includes a plurality of the structural reinforcing elements connected in an electrically conductive manner with each other and with a ground terminal. Further, a method of incorporating such a lightning protection system in a reinforced concrete tower, and a wind turbine with such a lightning protection system is provided.

Abstract: A gas turbine engine includes a nosecone assembly attached to a gas turbine engine. The nosecone assembly includes a support structure and a nosecone attached to the support structure. The nosecone includes at least a first tool hole extending through the nosecone. The first tool hole is structurally reinforced.

Abstract: The invention relates to a mid-frame (10) for a gas turbine, having at least one outer casing element (12) and having a plurality of duct segments (16), which are arranged in succession in the radial direction on the inside of the outer casing element (12) and in the peripheral direction of the casing element (12) and by which segments, in each case, at least one duct (18) through which a gas can flow is delimited at least in the radial direction at least partially, wherein a ring element (22) that is common to the duct segments (16) and is formed in one piece is provided, by means of which the duct segments (16) are held at the outer casing element (12).

Abstract: An airfoil includes an airfoil body having a first section and a second section that differ in coefficient of thermal expansion by at least 10% and that each have a through-thickness that is 20% or greater than a through-thickness of the airfoil body. The second section is arranged in thermomechanical juxtaposition with the first section such that the first section and the second section cooperatively thermomechanically control a profile of the airfoil body responsive to varying thermal conditions.

Abstract: Method for operating an offshore wind farm with at least one wind turbine system and a navigation device, which is operated in a normal mode, wherein a hazard signal is received by a receiving device, the received hazard signal is supplied to a control device that switches the navigation device from the normal mode to a an emergency lighting mode.

Abstract: A centrifugal air blower includes a casing having a spiral scroll, an impeller contained in the casing, an inlet side panel having an inlet, and a motor-fixing side panel fixing a motor. The centrifugal air blower further includes a first triangle wall and a second triangle wall at a discharge outlet opposite to a tongue. The triangle wall where air velocity inside the casing is slower is shaped with a longer vector component (length B) in the direction from the discharge outlet to the impeller than the other triangle wall. This configuration makes the air velocity near the discharge outlet uniform and suppresses a decrease of static pressure, an increase of power consumption, and turbulent flow noise.

Abstract: A method and a system for managing loads on a wind turbine are provided. The method includes receiving a signal relative to a yaw misalignment of the wind turbine, generating a yaw error signal based on the yaw misalignment, and comparing the yaw error signal to a first predetermined yaw error threshold value. The method also includes regulating a speed of the rotor to a value determined by a predetermined tip speed ratio, reducing the yaw misalignment using a yaw control system, and restarting the wind turbine if the yaw error signal is reduced to less than a second predetermined yaw error threshold value within a predetermined period of time. The method further includes shutting down the wind turbine if the yaw error signal remains greater than the second predetermined yaw error threshold value beyond the predetermined period of time.

Abstract: A turbocharger and a method of manufacturing a floating bush with which noise can be reduced, and the rotation speed can be increased. In a turbocharger in which a rotating shaft having a circular cross-section and connecting a turbine rotor and a compressor rotor is supported in a freely rotatable manner, at two axially separated positions via floating bushes, by an inner circumferential surface disposed so as to surround the rotating shaft in a bearing housing, an inner circumferential surface of each of the floating bushes has a non-circular shape in which the curvature of the cross-sectional shape varies in the circumferential direction.

Abstract: The present disclosure is directed to a lightning protection system for a wind turbine rotor blade. The lightning protection system includes a lightning conductive circuit having at least one electrical conductor and at least one semiconductor. The semiconductor is configured for placement at a blade root of the rotor blade. Further, the electrical conductor is configured to electrically couple a blade tip of the rotor blade to a ground conductor. In addition, the electrical conductor is configured to electrically couple the semiconductor between one or more spar caps located on either or both of the pressure or suction sides at the blade root and the ground conductor.