Heat exchangers having a three-dimensional lattice structure
Granted: January 28, 2025
Patent Number:
12209822
A heat exchanger may include a three-dimensional lattice of integrally formed unit cells, a first furcated-pathway baffle integrally formed among the three-dimensional lattice, and/or a second furcated-pathway baffle integrally formed among the three-dimensional lattice. The three-dimensional lattice of integrally formed unit cells may include an interior pathway-cell surface contiguously defining a first furcated fluid domain, and an exterior pathway-cell surface contiguously defining a…
Heat exchanger including furcating unit cells
Granted: January 28, 2025
Patent Number:
12209813
A heat exchanger is provided that can include furcating unit cells coupled with each other. Each of the unit cells can be elongated along an axis and include a sidewall that defines annular ring openings on opposite ends of the unit cell along the axis. The sidewall also can define undulating annular rings between the annular ring openings and axially separated from each other along the axis. The sidewall can further define angled openings into the unit cell both above and below each of…
Turbomachine structure with three air flows
Granted: January 28, 2025
Patent Number:
12209594
A turbomachine of the type with an unducted fan, comprising: a separation nozzle splitting an air flow into a primary flow and a secondary flow; a compressor compressing the primary flow; and an air/oil heat exchanger; wherein the exchanger is positioned in a channel through which a tertiary flow passes, the tertiary flow being drawn from the secondary flow upstream of the exchanger and meeting at least one annular row of rotor blades of the compressor downstream of the exchanger.
Gas turbine engine with forward swept outlet guide vanes
Granted: January 28, 2025
Patent Number:
12209557
A turbofan engine defining an axial direction and a longitudinal centerline along the axial direction is provided. The turbofan engine includes: a fan section having a fan; a turbomachine drivingly coupled to the fan, the turbomachine comprising an outer casing; an outer nacelle surrounding the fan and at least a portion of the turbomachine; an outlet guide vane extending between the turbomachine and the outer nacelle, the outlet guide vane defining a base and a tip and being forward…
Bowed-rotor mitigation system for a gas turbine
Granted: January 28, 2025
Patent Number:
12209540
A gas turbine engine includes a compressor rotor shaft assembly, an accessory gearbox, and a bowed-rotor mitigation drive device drivingly coupled with the accessory gearbox. The bowed-rotor mitigation drive device is driven during an engine startup phase so as to induce a mechanical load (mechanical energy) to the bowed-rotor mitigation drive device. The mechanical load (mechanical energy) is retained within the bowed-rotor mitigation drive device during operation of the gas turbine…
Thrust bearings to support axial thrust in pumps
Granted: January 28, 2025
Patent Number:
12209507
Apparatus, systems, and articles of manufacture are disclosed to dynamically support axial thrust in pumps. An example apparatus disclosed herein includes a first thrust pad, a second thrust pad, and a thrust disc between the first thrust pad and the second thrust pad, the thrust disc including a first side adjacent to the first thrust pad. a second side adjacent to the second thrust pad, an outer surface, a first channel extending between the outer surface to the first side, and a…
Systems and methods of servicing equipment
Granted: January 28, 2025
Patent Number:
12208925
A method of kitting a robotic assembly for servicing aviation equipment including determining a current workscope associated with the equipment; determining at least one of parts and tooling associated with the current workscope; equipping the robotic assembly with at least some of the determined parts, tooling, or both; and the robotic assembly at least partially autonomously servicing the equipment using the equipped parts, tooling, or both.
Engine controller for a gas turbine engine
Granted: January 21, 2025
Patent Number:
12203411
A gas turbine engine is provided having: a turbomachine; a fan section having a fan rotatable by the turbomachine; a nacelle enclosing the fan; and an engine controller positioned within the nacelle. The nacelle defines an inner surface radius (r) along the radial direction inward of the engine controller, wherein the engine controller defines a radial height (?r) along the radial direction, a total volume (V), and a normalized radius (r?). The normalized radius (r?) is a ratio of the…
Method for operating a wind turbine and a wind turbine
Granted: January 21, 2025
Patent Number:
12203447
A method (1000, 1001) for operating a wind turbine (100-100d) is disclosed. The wind turbine includes a rotor (106) with rotor blades (108), a power conversion system (118, 210, 234) mechanically connected with the rotor (106), a first subsystem (310), a second subsystem (320), and an internal electric power distribution system (300-301b, 321, 322) connectable with the first subsystem (310) and the second subsystem (320). During operating (1100) the wind turbine (100-100d) in a normal…
Mounting assembly for a gearbox assembly
Granted: January 21, 2025
Patent Number:
12203418
A mounting assembly for a gearbox assembly of a gas turbine engine includes at least one mounting member configured to mount a gear of the gearbox assembly to a component of the gas turbine engine, the at least one mounting member characterized by a lateral impedance parameter, a bending impedance parameter, and a torsional impedance parameter. A gas turbine engine includes the mounting assembly. The at least one mounting member may be a flex mount, a fan frame, or a flex coupling.
Turbine control valves dynamic interaction
Granted: January 21, 2025
Patent Number:
12203395
Method for controlling steam admission into a steam turbine, the turbine comprising a high pressure casing, at least one reduced pressure casing and an admission steam control system, the high pressure casing and at least one reduced pressure casing comprising control valves for steam admission. The admission steam control system manages the following steps: determining a steam flow demand; elaborating a high pressure control valve opening setpoint depending on the determined steam flow…
Composite airfoil assembly for a turbine engine
Granted: January 21, 2025
Patent Number:
12203390
A composite airfoil assembly for a turbine engine includes an airfoil defining an airfoil interior, and an inner support structure at least partially located within the airfoil interior. The inner support structure can include intertwined fibers defining a three-dimensional structure. A laminate overlay surrounds at least a portion of the inner support structure.
In situ foam generation within a turbine engine
Granted: January 21, 2025
Patent Number:
12203380
A turbine system includes a foam generating assembly having an in situ foam generating device at least partially positioned within the fluid passageway of the turbine engine, such that the in situ foam generating device is configured to generate foam within the fluid passageway of the turbine engine.
Midshaft rating for turbomachine engines
Granted: January 21, 2025
Patent Number:
12203377
A turbomachine engine includes an engine core including a high-pressure compressor, a high-pressure turbine, and a combustion chamber. The engine core has a length (LCORE), and the high-pressure compressor has an exit stage diameter (DCORE). A power turbine is in flow communication with the high-pressure turbine. A low-pressure shaft is coupled to the power turbine and characterized by a midshaft rating from one hundred fifty (ft/sec)1/2 to three hundred thirty (ft/sec)1/2. The…
Seal assemblies for turbine engines having wear detection features
Granted: January 21, 2025
Patent Number:
12203375
A seal assembly at a rotor-stator interface includes at least one non-contacting seal interface and at least one rub detection feature. The rub detection feature(s) is configured to generate a signal upon the rotor and the stator making contact at the rotor-stator interface and causing wear above a certain threshold at the rotor-stator interface. The seal assembly also includes at least one sensor arranged at the rotor-stator interface. The sensor is configured to sense the signal. The…
Relight of a propulsion system with a fuel cell
Granted: January 21, 2025
Patent Number:
12202616
A propulsion system including: a fuel cell assembly having a fuel cell defining an outlet positioned to remove output products from the fuel cell and a fuel cell assembly operating condition; a turbomachine comprising a compressor section, a combustion section, and a turbine section arranged in serial flow order, the combustion section configured to receive a flow of aviation fuel from an aircraft fuel supply and further configured to receive the output products from the fuel cell; and a…
Cleaning systems for additive manufacturing apparatuses and methods for using the same
Granted: January 21, 2025
Patent Number:
12202200
Embodiments of the present disclosure are directed to additive manufacturing apparatuses, cleaning stations incorporated therein, and methods of cleaning using the cleaning stations.
Techniques for neuromodulation
Granted: January 21, 2025
Patent Number:
12201836
The subject matter of the present disclosure generally relates to techniques for neuromodulation of lymphatic tissue that include applying one or more energy pulses to a neuron of a subject, e.g., via an electrode positioned to deliver sufficient energy to the neuron, to modulate immune function. For example, an adaptive immune reflex of a subject may be modulated via neuromodulation.
Material supply system and method for using the same
Granted: January 14, 2025
Patent Number:
12194681
A system (100) includes a build area positioned along a working surface (102), an arcuate supply receptacle (110) defining one or more supply receptacle sidewalls (118, 120) and an upwardly-facing receptacle opening (114) spaced apart from the build area along the working surface, an arcuate piston positioned at least partially within the arcuate supply receptacle (110), where the arcuate piston (130), the upwardly-facing receptacle opening, and the one or more supply receptacle…
System and method for servicing aircraft engines
Granted: January 14, 2025
Patent Number:
12195202
An apparatus for servicing internal components of an aircraft engine includes a flexible hollow tube; a latching mechanism connected to or incorporated with the flexible hollow tube; and a servicing device to be inserted through the flexible hollow tube. The servicing device is freely moveable through the flexible hollow tube and decoupled from the latching mechanism. The flexible hollow tube is shaped and configured so as to enable proximate positioning of the flexible hollow tube with…
