Lifting device for a wind turbine rotor blade
Granted: June 27, 2023
Patent Number:
11686290
A lift system for a rotor blade of a wind turbine includes a lifting device having a structural frame body having a root end and a tip end. The root end supports a root cradle and the tip end supports a tip cradle. The root and tip cradles each have a profile that corresponds to at least one exterior surface of the rotor blade so as to receive and support at least a portion of the rotor blade. Due to a shape of the rotor blade, when the rotor blade is installed in the lifting device and…
Transmitting assembly for a universal wireless charging device and a method thereof
Granted: June 27, 2023
Patent Number:
11689056
A transmitting assembly (114, 214, 334) configured to transmit electric power in a universal wireless charging device (102, 200, 302) is presented. The transmitting assembly (114, 214, 334) includes a first coil (116, 216, 316) embedded in a printed circuit board (220) and configured to transmit a first AC voltage signal having a first frequency. Also, the transmitting assembly (114, 214, 334) includes a second coil (118, 218, 318) disposed on the printed circuit board (220) and…
Voltage control loop for mitigating flicker in a grid-forming inverter-based resource
Granted: June 27, 2023
Patent Number:
11689022
A method for mitigating voltage disturbances at a point of interconnection (POI) of a grid-forming inverter-based resource (IBR) due to flicker includes receiving a voltage reference command and a voltage feedback. The voltage feedback contains information indicative of the voltage disturbances at the POI due to the flicker. The method also includes determining a power reference signal for the IBR based on the voltage reference command and the voltage feedback. Moreover, the method…
Electrical power system having active harmonic filter
Granted: June 27, 2023
Patent Number:
11689017
A method of mitigating high frequency harmonics in an output current of an electrical power system connected to a power grid includes providing an active harmonic filter in a stator power path connecting a stator of the generator to the power grid. Further, the method includes controlling, via a controller, the active harmonic filter to selectively extract a high frequency harmonic component from the output current. The method also includes determining, via the controller, whether the…
Systems and methods for direct laser melting of metals using non-diffracting laser beams
Granted: June 27, 2023
Patent Number:
11686889
A system includes a first group of optic lenses within a focusing unit positioned along the propagation direction of a collimated laser beam, the first group of optic lenses separated by a predetermined fixed distance. The first group of optic lenses in conjunction cause the collimated beam to form as an annular beam as it passes through the first group of optic lenses. An axicon lens located distal from the first group of optic lenses along the propagation direction, the axicon lens…
Heat exchangers and methods of manufacturing the same
Granted: June 27, 2023
Patent Number:
11686537
A method of manufacturing a heat exchanger is provided. The method includes forming a first substrate by additively manufacturing a body defining a first outer surface and a second outer surface opposite the first outer surface, a first partial fluid flow channel formed within the first outer surface, a second partial fluid flow channel formed within the second outer surface, and at least one internal fluid flow channel completely formed within the body, and coupling the first substrate…
Damper for swirl-cup combustors
Granted: June 27, 2023
Patent Number:
11686474
A gas turbine engine may include a combustion section having a fuel nozzle, a swirler, and a ferrule configured to mount and center the fuel nozzle with the swirler. The combustion section may further include a damper on a cold side of the combustion section. The damper may have an acoustic cavity, a damper neck, and a cavity feed hole. The damper may operate as Helmholtz cavity to absorb a hydrodynamic or acoustic instability present in a region within the swirler.
Combustion liner
Granted: June 27, 2023
Patent Number:
11686473
A liner for a combustor in a gas turbine engine and a related method. The liner includes a liner body having a cold side and a hot side. The liner includes a dilution array having a plurality of dilution passages, each dilution passage of the plurality of dilution passages having a concatenated geometry repeating in a predetermined pattern and extending circumferentially around the liner body. The dilution passage integrates a first dilution air flow flowing through the dilution passage…
Devices and methods for mitigating vibrations in wind turbines
Granted: June 27, 2023
Patent Number:
11686293
The present disclosure relates to devices (300) for wind turbine blades (22) and methods (400) for reducing vibrations in wind turbines (10). More particularly, the present disclosure relates to devices (300) for mitigating vortex induced vibrations and stall induced vibrations, wind turbine blades (22) comprising such devices (300), and methods (400) for reducing wind turbine vibrations when the wind turbine (10) is parked, especially during wind turbine installation and/or maintenance.…
Method of mounting blades to a rotor hub of a wind turbine
Granted: June 27, 2023
Patent Number:
11686291
A method (100) of mounting blades (22) to a rotor hub (20) of a wind turbine (10), the wind turbine (10) comprising a tower (12), a nacelle (16) mounted on the tower (12), the rotor hub (20) being coupled to the nacelle (16), and blades (22), each blade (22) comprising a blade root segment (56) and a blade extension segment (66), the method (100) comprising mounting a first blade root segment (50) to the rotor hub (20), mounting a second blade (72) to the rotor hub (20) after mounting…
Gearbox assembly
Granted: June 27, 2023
Patent Number:
11686254
A gearbox assembly for a turbine engine. The turbine engine includes a drive shaft and a fan shaft. The gearbox assembly includes a first gear, a second gear, an output, and a journal pin. The first gear is connected to the drive shaft. The second gear is supported by a planet carrier. The output is connected to the fan shaft. Torque is transferred from the drive shaft of the core turbine engine to the fan shaft through the gearbox assembly. The journal pin is inserted into the planet…
Turbine engine and method of cooling
Granted: June 27, 2023
Patent Number:
11686212
A method of operating a turbine engine that includes shutting down the turbine engine such that a rotational speed of the turbine engine decreases, and actuating a starter motor of the turbine engine at one of as the rotational speed of the turbine engine decreases or at a preset time after the turbine engine receives a full stop command such that residual heat is exhausted from the turbine engine.
Component assembly for variable airfoil systems
Granted: June 27, 2023
Patent Number:
11686210
A component assembly for a gas turbine engine defining a core air flowpath is provided. The component assembly includes an outer shell comprising a first array of integral outer shell airfoils that extend inward from an outer shell periphery; and an inner shell comprising a second array of integral inner shell airfoils that extend outward from an inner shell periphery, wherein the outer shell and the inner shell are one or both of translatable and rotatable relative to one another…
Surfaces for contacting a hydrocarbon fluid and methods for preparing the same
Granted: June 27, 2023
Patent Number:
11686003
A component configured to be in contact with a hydrocarbon fluid and a method of preparing a contact surface of the component. The component may include a wall having the contact surface configured to be in contact with the hydrocarbon fluid. The contact surface is formed from a metal comprising a metal M, where M is selected from the group consisting of nickel (Ni), palladium (Pd), and platinum (Pt). A metal-ligand complex comprising phosphorus (P) is on the contact surface. The method…
Propulsion engine for an aircraft
Granted: June 27, 2023
Patent Number:
11685542
A propulsion system for an aircraft having an aft end is provided herein. The propulsion system can include an electric propulsion engine defining a central axis. The electric propulsion engine can include an electric motor, a fan rotatable about the central axis of the electric propulsion engine by the electric motor, a bearing supporting rotation of the fan, and a thermal management system. The thermal management system can include a lubrication oil circulation assembly for providing…
Mold system including separable, variable mold portions for forming casting article for investment casting
Granted: June 20, 2023
Patent Number:
11679539
A mold system and method for forming a casting article for investment casting is disclosed. The mold system includes a mold for receiving therein a selected core chosen from a plurality of varied cores. The mold includes a plurality of separable mold portions that are coupleable together to create the mold and configured to form a sacrificial material from a sacrificial material fluid about the selected core. At least one selected separable mold portion of the plurality of separable mold…
Heat exchanger capacity for one or more heat exchangers associated with a power gearbox of a turbofan engine
Granted: June 20, 2023
Patent Number:
11680530
A turbofan engine having one or more heat exchangers tied to a power gearbox is provided. The power gearbox mechanically couples a low pressure spool and a fan of the turbofan engine. The one or more heat exchangers have a heat exchanger capacity defined by a resultant heat transfer surface area density associated with the one or more heat exchangers multiplied by a heat conductance factor that relates a power gearbox heat load, a fan power consumption function, a fan diameter of the…
Inspection and repair tool
Granted: June 20, 2023
Patent Number:
11679898
A method for inspecting and repairing a surface of a component of a gas turbine engine, the method including: inserting an inspection and repair tool into an interior of the gas turbine engine; inspecting the surface of the component with the inspection and repair tool; performing a repair of the surface of the component with the inspection and repair tool from within the interior of the gas turbine engine, the inspection and repair tool remaining within the interior of the gas turbine…
Compensating laser alignment for irregularities in an additive manufacturing machine powderbed
Granted: June 20, 2023
Patent Number:
11679551
A system for additive manufacturing machine energy beam alignment error compensation includes, a calibration table having x-y planar offsets to correct laser alignment errors representing energy beam positional offsets between beam-steering commanded energy beam locations and fiducial marks generated on a burn-paper, a recoater mechanism that distributes successive layers of powder, one or more sensors monitoring the powderbed surface proximal to the beam scan unit, and a processor unit…
Method for melt pool monitoring
Granted: June 20, 2023
Patent Number:
11679548
A method of controlling a manufacturing process in which directed energy selectively melts material, forming a melt pool. The method includes: generating an image having an array of individual image elements, the image including measurement, for each image element, of two or more physical properties from the group including: color, emission frequency, and sheen, the measurements collectively indicating presence of: liquid phase, melting, or incipient melting; from the measurements,…
