Computed tomography scatter and crosstalk correction
Granted: April 1, 2025
Patent Number:
12266036
A control circuit accesses a memory having stored therein total detected computed tomography image signal information in a projection domain for an object, a first model representing object scatter, a second model representing background scatter, and a third model representing detector crosstalk. Prior to a reconstruction step, the control circuit processes the total detected computed tomography image signal information in the projection domain for the object as a function of each of the…
Ultrasonic fuel flow measuring systems and methods of setting characteristics of excitation signals
Granted: April 1, 2025
Patent Number:
12264951
A fuel flow measuring system includes an ultrasonic fuel flow sensor. The fuel flow sensor includes a first transducer and a second transducer. The first transducer is excited at multiple different excitation frequencies and a voltage, an electric current, and a phase difference between the voltage and the electric current is sensed at the first transducer during excitation. Data points are generated based on the sensed readings and a model is fit to the data points to determine a…
Damping device for damping shaft vibration
Granted: April 1, 2025
Patent Number:
12264690
Damping devices, turbomachines, and methods of damping vibration are provided. For example, a damping device for damping vibration of a shaft rotatable about an axis of rotation is provided. The damping device defines radial and axial directions. The damping device comprises a bearing, a housing, and a damper element. The housing and damper element define a cavity therebetween for receipt of a damping fluid. The cavity has a length along the axial direction that is curved away from the…
Heat exchanger for a gas turbine engine
Granted: April 1, 2025
Patent Number:
12264627
A heat exchanger is provided. The heat exchanger includes one or more exchanger units that each have a core and manifolds. The core of an exchanger unit is formed by multiple unit cells coupled together in flow communication to create a flow distribution grid. Each unit cell has at a first primary channel, a second primary channel, a first secondary channel in flow communication with the first primary channel, and a second secondary channel in flow communication with the second primary…
Monolithic composite blade and platform
Granted: April 1, 2025
Patent Number:
12264597
A component for a gas turbine engine. The component includes a continuous fiber blade including an airfoil extending radially between a root and a tip and a blade attachment feature positioned at or adjacent to the root. The component further includes a platform coupled to the root of the continuous fiber blade. The platform includes a plurality of chopped fibers. Additionally, the component includes a thermoplastic polymer contained in both the continuous fiber blade and the platform.…
Fan assembly for an engine having redundant trunnion retention
Granted: April 1, 2025
Patent Number:
12264590
A fan assembly for an engine has a fan blade, a disk having a disk segment, a trunnion mechanism having a trunnion extending at least partially through the disk segment, and first and second attachment systems. The trunnion has a platform and a shaft. The fan blade is adjacent to the platform of the trunnion. The trunnion is attached to the disk segment using the first attachment system along a preload path. The first and second attachment systems further include first and second…
Liquid fluid systems including phase detection sensors for turbine engines
Granted: April 1, 2025
Patent Number:
12264588
A liquid fuel system for a turbine engine may include one or more sensors configured to generate sensor outputs corresponding to one or more phase properties of a fuel supplied to the turbine engine through a fuel pathway, and a controller configured to generate control commands configured to control one or more controllable components of the liquid fuel system based at least in part on the sensor outputs. The one or more sensors may include one or more phase detection sensors. The fuel…
In-process optical based monitoring and control of additive manufacturing processes
Granted: April 1, 2025
Patent Number:
12263636
Systems and methods for optical based monitoring of additive manufacturing processes are provided. In one example a method includes obtaining optical data representing a layer of a structure being manufactured using an additive manufacturing process, comparing the optical data with a standard optical representation associated with the structure, determining one or more nonconformance conditions between the optical data representing the layer and the standard optical representation, and…
Potential replacement algorithm selection based on algorithm execution context information
Granted: March 25, 2025
Patent Number:
12259693
According to some embodiments, an available algorithm data store may contain information about a pool of available algorithms. An algorithm selection platform coupled to the available algorithm data store may access the information about the pool of available algorithms and compare the information about each of the pool of available algorithms with at least one requirement associated with the current algorithm executing in the real environment. The algorithm selection platform may then…
Gas turbine engine and fuel cell assembly
Granted: March 25, 2025
Patent Number:
12261334
A gas turbine engine is provided. The gas turbine engine includes a turbomachine having a compressor section, a combustor, and a turbine section arranged in serial flow order, the turbomachine further including an outer casing; a fuel cell assembly positioned within the outer casing of the turbomachine, the fuel cell assembly including a fuel cell and an output products line in fluid communication with an outlet of the fuel cell for receiving output products from the fuel cell; a fuel…
System and method for neuroactivity detection in infants
Granted: March 25, 2025
Patent Number:
12257044
A neuroactivity monitoring system includes a camera configured to acquire image data of a patient positioned on the patient support and a monitoring device in communication with the camera. The monitoring device uses the acquired image data of the camera to identify and track patient landmarks, such as facial and/or posture landmarks, and, based on the tracked movement, characterize patient neuroactivity.
Seal monitoring apparatus
Granted: March 25, 2025
Patent Number:
12259292
A seal monitoring apparatus is provided. The seal monitoring apparatus includes one or more pressure sensors and a controller in communication with the one or more pressure sensors. The one or more pressure sensors is mounted at a seal of a turbine to measure pressure on a first side of the seal and/or a second side of the seal. The controller is configured to receive pressure data from the one or more pressure sensors and determine a condition of the seal based at least in part on the…
Thermal management system
Granted: March 25, 2025
Patent Number:
12259194
A gas turbine engine is provided. The gas turbine engine includes: a thermal management system having a thermal fluid member having a flow of thermal fluid therethrough during operation of the gas turbine engine and a heat exchanger assembly, the heat exchanger assembly including: a core section comprising a plurality of heat exchange members; and a heat exchange manifold including a first direction pressure vessel in fluid communication with the thermal fluid member and a second…
Combustor swirler to dome attachment
Granted: March 25, 2025
Patent Number:
12259137
A combustor for a gas turbine includes a ceramic matrix composite (CMC) dome including a swirler opening therethrough with a flare interface surface surrounding the swirler opening, a swirler assembly including (a) a secondary swirler having a threaded flare attachment portion, and (b) a flare having (i) a threaded secondary swirler attachment portion, and (ii) a dome interface wall that interfaces with the flare interface surface of the CMC dome, and a swirler-dome attachment member.…
System and method for monitoring damage of a bearing for a wind turbine
Granted: March 25, 2025
Patent Number:
12258939
A method for monitoring damage of a slewing ring bearing of a wind turbine includes arranging at least one optical fiber sensor adjacent to or at least partially on at least one of an inner race or an outer race of the slewing ring bearing. Further, the method includes receiving, via a controller, signals from the at least one optical fiber sensor indicative of one or more changes associated with the slewing ring bearing. The method also includes comparing, via the controller, the one or…
Cowl assembly for a propulsor
Granted: March 25, 2025
Patent Number:
12258923
A propulsor is provided having a power source; a fan section coupled to the power source and configured to provide thrust opposite a downstream direction; and a cowl assembly at least partially enclosing the power source and the fan section, the cowl assembly including: a forward cowl component; a first aft cowl component disposed in the downstream direction relative to the forward cowl component and movable to vary a first aft cowl displacement from the forward cowl component in the…
Gearbox assembly
Granted: March 25, 2025
Patent Number:
12258909
A gearbox assembly for a gas turbine engine includes a hollow gear. The hollow gear has one or more reservoirs configured to store a lubricant and one or more passages configured to supply the lubricant to one or more gear meshes in the gearbox assembly. The hollow gear provides a dampening system configured to absorb vibrations and loading experienced in the gearbox assembly and configured to provide impact resistance for the gearbox assembly.
Vehicle and propulsion system with hydrogen fuel system
Granted: March 25, 2025
Patent Number:
12258907
An aircraft propulsion system in includes a compressor section, a heat addition system, and an expansion section in serial flow arrangement, wherein the heat addition system is configured to receive a flow of gaseous fuel from a fuel system, and wherein the flow of gaseous fuel is provided to the heat addition system to generate combustion gases. A lubricant system is configured to provide a flow of lubricant through the propulsion system. A hydraulic system is configured to provide a…
Systems and method for use in servicing a machine
Granted: March 25, 2025
Patent Number:
12258873
A system for use in servicing a machine. The system includes a tubular body including a longitudinal axis, a tip end, a dispensing nozzle defined at the tip end, and an interior channel in flow communication with the dispensing nozzle. The tubular body is configured to be flexible. An actuator is configured to selectively modify an orientation of the tubular body, and a reservoir is in flow communication with the interior channel. The reservoir is configured to supply a maintenance fluid…
Neuromodulation techniques for perturbation of physiological systems
Granted: March 25, 2025
Patent Number:
12257457
Embodiments of the present disclosure relate to techniques for inducing physiological perturbations in a subject via neuromodulation, e.g., peripheral neuromodulation of a region of interest of an organ. The nature and degree of the perturbations may be related to the subject's clinical condition. Accordingly, an assessment of one or more characteristics of the perturbations may be used to determine a clinical condition of the subject.
