Fault current mitigation for an electrical power conversion system
Granted: June 11, 2024
Patent Number:
12009742
An electric power conversion system comprising: an alternating current (AC) source comprising a plurality of AC terminals for conducting AC power; a voltage source electrically coupled to the AC terminals; and a controller operably coupled to the voltage source, the controller being configured to: operate the voltage source to apply a fault reducing voltage at the AC terminals that reduces an AC line-to-line fault current (If).
Gas turbine engine combustor with openings
Granted: June 11, 2024
Patent Number:
12007114
A gas turbine engine includes a compressor section, a combustor section, and a turbine section in fore-to-aft serial flow arrangement and defines an engine centerline. The combustor section includes a combustor liner at least partially defining a combustor chamber and a dome wall, coupled to the combustor liner, and defining a forward end of the combustion chamber. A first fuel nozzle is located on the dome wall and fluidly coupled to the combustion chamber. A first set of compressed air…
Gearbox assembly
Granted: June 11, 2024
Patent Number:
12007011
A gearbox assembly includes a first gear and a second gear. The first gear includes a plurality of first gear teeth. The second gear includes a plurality of second gear teeth. The plurality of first gear teeth and the plurality of second gear teeth mesh with each other as the first gear and the second gear rotate. A profile shape of at least one first gear tooth of the first gear is characterized by a total profile modification between 66 micrometers and 120 micrometers.
Assemblies for wind turbines and methods
Granted: June 11, 2024
Patent Number:
12006910
The present disclosure relates to an assembly comprising a rotor hub, a generator rotor, and a shaft for supporting the generator rotor on a stationary frame, wherein the rotor hub is configured to be removable from the generator rotor and the shaft without disassembling the generator rotor from the shaft. The present disclosure further relates to methods for assembly.
High bandwidth control of turbofan/turboprop thrust response using embedded electric machines
Granted: June 11, 2024
Patent Number:
12006880
Systems and methods for high bandwidth control of thrust response for turbofan or turboprop engines are provided. Such systems and methods include an engine control system that processes a rate command and a feedback signal from an engine to generate separate fuel and electric machine control signals that respectively control fuel and electric machine dynamics of the engine to produce engine dynamics that result in desired thrust response.
Methods and apparatus to operate gas turbines with hydrogen as the combusting fuel
Granted: June 11, 2024
Patent Number:
12006878
Methods and apparatus to operate gas turbines with hydrogen as the combusting fuel are disclosed. An example gas turbine system includes an intercooler disposed between at a fan and at least a portion of a compressor, and at least one conduit to define a flow path to convey fluid, the flow path including a first portion and a second portion, the first portion of the flow path to carry the fluid to or through the intercooler, the second portion of the flow path to carry the fluid at least…
Heat exchanger for an aircraft
Granted: June 11, 2024
Patent Number:
12006870
A heat exchanger for an aircraft includes an inlet plenum housing defining an inlet plenum configured to receive a fluid and an outlet plenum housing defining an outlet plenum configured to discharge the fluid. Furthermore, the heat exchanger includes a core configured to heat or cool a first portion of the fluid, with the core defining a plurality of fluid passages extending from the inlet plenum to the outlet plenum. Moreover, the heat exchanger includes a passive bypass defining a…
Heat exchanger for a gas turbine engine
Granted: June 11, 2024
Patent Number:
12006869
A heat exchanger includes an inlet plenum chamber, an outlet plenum chamber fluidly coupled to the inlet plenum chamber, and a plurality of intermediate plenum chambers disposed downstream from the inlet plenum chamber and upstream from the outlet plenum chamber. The plurality of intermediate plenum chambers includes a first intermediate plenum chamber, at least one tube bundle, and a first bypass valve fluidly coupled to the first intermediate plenum chamber. The first bypass valve is…
Articles including insulated conductors and systems thereof
Granted: June 4, 2024
Patent Number:
12003154
An article can include a ceramic insulator with an interior surface defining a recess, an insulator aperture in the interior surface, and an insulator cooling channel extending through at least a portion of the ceramic insulator to the insulator aperture. A first conductor can be at least partially disposed within the recess.
Communication system and method for applying quantum key distribution security for a time sensitive network
Granted: June 4, 2024
Patent Number:
12003627
A method includes identifying connections between plural components of a time sensitive network (TSN) that are interconnected via a predetermined connection plan. The method also includes determining quantum key distribution (QKD) information of the components. Also, the method further includes scheduling flows for the TSN based on the QKD information of the components.
Casting core for a cast engine component
Granted: June 4, 2024
Patent Number:
11998974
A casting core used in the manufacture of a cast engine component for a turbine engine, the cast engine component having a first area, a second area, a fluid passage wall separating the first area and the second area, and a connecting fluid passage extending through the fluid passage wall and interconnecting the first area and the second area. The connecting fluid passage having a turn with a radius (R). The casting core having a first core and a second core. The first core and the…
Pressure equilibrated thermal insulation gap
Granted: June 4, 2024
Patent Number:
12000662
A thermal structure for management of thermal energy, the thermal structure including: a first wall structure defining a first cavity; a second wall structure defining a second cavity, the second cavity in fluid communication with the first cavity; and a barrier cavity defined at least in-part by the first wall structure and the second wall structure, wherein the barrier cavity is disposed between the first cavity and the second cavity and includes a pressurized barrier fluid therein or…
Wind turbine control
Granted: June 4, 2024
Patent Number:
12000380
A method for controlling a wind turbine, and an associated wind turbine, includes receiving a wind direction signal indicative of an instantaneous wind direction at the wind turbine and receiving a signal indicative of an instantaneous wind speed at the wind turbine. A rate of change of the wind direction at the wind turbine and a rate of change of wind speed at the wind turbine are determined. A control signal for a pitch system for blades of the wind turbine is determined based on the…
Air turbine starter with lubrication recirculation circuit
Granted: June 4, 2024
Patent Number:
12000342
An air turbine starter (ATS) for a gas turbine engine having an accessory gear box (AGB) with a lubricant reservoir, the air turbine starter comprising a housing at least partially defining a working air flow path; a turbine section comprising a turbine having an output shaft and a plurality of blades circumferential spaced about the output shaft and at least partially extending into the working air flow path; a drive section having a drive shaft operably coupled to the output shaft to…
Rotor blade assemblies for turbine engines
Granted: June 4, 2024
Patent Number:
12000308
A rotor blade assembly for a turbine engine, including an airfoil blade including an inner diameter end and an outer diameter end, a lower blade carrier coupled to the inner diameter end of the airfoil blade and rigidly coupled to a disk via a pin, an upper blade carrier coupled to the outer diameter end of the airfoil blade, and an outer drum coupled to the upper blade carrier via a radial joint. The radial joint supports radial motion of the upper blade carrier relative to an axis…
Seal for a rotor
Granted: June 4, 2024
Patent Number:
12000296
A seal for a rotor is provided. The rotor defines an axial direction, a circumferential direction, and a radial direction. The seal includes a first flexible element coupled to the rotor. The first flexible element extends in a first direction that is within forty five degrees of the axial direction.
Seal assemblies for turbine engines and related methods
Granted: June 4, 2024
Patent Number:
12000289
A seal assembly for a rotary machine, such as a turbine engine, may include one or more seal segments that respectively include a seal housing defining a seal chamber and one or more fluid supply apertures that pass through the seal housing, and a seal body defining a seal face and one or more fluid conduits that pass through the seal body to the seal face. The seal chamber may receive at least a portion of the seal body, and the seal body may move within the seal chamber along a radial…
Deployable inlet assembly for aerial vehicle
Granted: June 4, 2024
Patent Number:
11999500
An aerial vehicle includes a housing, a propulsion system supported within the housing, and an inlet assembly supported by an outer surface of the housing. The inlet assembly includes: at least one fluid channel in fluid communication with the propulsion system; and a first scoop coupled to the housing and movable between a stowed position and a deployed position. The first scoop is aligned with the housing in the stowed position to prevent air from entering the propulsion system, and…
Methods and apparatus for detecting fuel in oil, lube degradation, and fob thru optical and color characterization
Granted: June 4, 2024
Patent Number:
11999363
Systems and techniques that facilitate detecting fuel in oil, lube degradation, and foreign object contamination through optical and/or color characterization are provided. A signature component can generate a digital signature corresponding to a lubricant in a lubrication circuit of an engine. The digital signature can be based on optical or visual properties of a sensor array coupled to the lubrication circuit and exposed to the lubricant, wherein the optical or visual properties of…
Method and apparatus for robotic arm navigation
Granted: June 4, 2024
Patent Number:
11999058
A robotic arm is inserted into a passage of a part to be examined. Operator instructions defining a tip motion for a tip of the robotic arm, sensor readings, and an environmental map are received. The operator instructions, the environmental map and sensor readings are applied to a previously trained machine learning model to produce control signals. The control signals to an actuator on the arm to control a movement of the robotic arm allowing the robotic arm to automatically gain…
