Part-span shrouds for pitch controlled aircrafts
Granted: February 27, 2024
Patent Number:
11913355
Part-span shrouds for pitch controlled aircrafts are disclosed herein. An example apparatus includes a first portion extending from a first airfoil, the first portion including a first surface, the first surface being convex, a second portion extending from a second airfoil towards the first airfoil, the second portion including a second surface the first airfoil circumferentially adjacent to the second airfoil, the second surface being concave, and an interface formed by the first…
Paralleled DC-DC converters with circulating current suppression circuit
Granted: February 27, 2024
Patent Number:
11916468
A converter includes a DC bus, a first DC-DC converter, a second DC-DC converter, and a plurality of circulating current suppression circuits. The first DC-DC converter is coupled to the DC bus and includes a first plurality of switches. The second DC-DC converter is coupled to the DC bus in parallel with the first DC-DC converter. The second DC-DC converter includes a second plurality of switches. The plurality of circulating current suppression circuits are coupled to the DC bus and…
Continuous degree of freedom acoustic cores
Granted: February 27, 2024
Patent Number:
11915679
An acoustic liner is provided. The acoustic liner includes a face sheet, a back sheet spaced from the face sheet, and a core layer defining a cellular structure disposed between the face sheet and the back sheet. The core layer includes a plurality of first resonant cells coupled to the back sheet. Each of the first resonant cells includes a first cell wall coupled to the back sheet along a first cell wall base edge, the first cell wall extending from the back sheet toward the face…
Systems and methods of servicing equipment
Granted: February 27, 2024
Patent Number:
11915531
Systems and methods of servicing equipment including determining, by one or more computing devices, a workscope associated with the equipment; and at least partially-autonomously servicing the equipment in response to the determined workscope.
Autozoning of additive manufacturing print parameters
Granted: February 27, 2024
Patent Number:
11914342
A method, medium, and system including determining a material property value to assign to each of the plurality of 3D volume elements, wherein the material property values assigned to the plurality of 3D volume elements are classified into a predetermined number of bins that correspond to a plurality of different additive manufacturing (AM) print parameter sets, generating a plurality of transfer functions to determine relationships between the material property values assigned to the…
Combustor assembly for a turbine engine
Granted: February 27, 2024
Patent Number:
11913645
A combustor assembly for a gas turbine engine defining a radial direction and a circumferential direction includes a liner assembly at least partially defining a combustion chamber and including at least one liner formed of a ceramic matrix composite material and extending between a downstream end and an upstream end, the downstream end of the at least one liner defining an interface surface extending along the circumferential direction; and a seal member also formed of a ceramic matrix…
System and method for slip detection and surface health monitoring in a slip coupling of a rotary shaft
Granted: February 27, 2024
Patent Number:
11913429
A method for operating a generator of a wind turbine includes generating, via a controller, a time series of a plurality of operating signals of the generator. The method also includes applying at least one algorithm to the time series of the plurality of operating signals of the generator to generate a processed time series of the of the plurality of operating signals of the generator. Moreover, the method includes identifying, via the controller, patterns in the processed time series…
Trunnion-to-disk connection for an open fan configuration aircraft powerplant
Granted: February 27, 2024
Patent Number:
11913408
A trunnion-to-disk connection for use on an open fan configuration of a gas turbine engine may include an integral trunnion and blade spar inserted through a trunnion aperture of a fan disk and supported by top bearing and a bottom bearing. A cavity can be provided between a trunnion of the integral trunnion and blade spar and the fan disk, as well as between the top bearing and bottom bearing. Pressurized hydraulic fluid can be supplied to the cavity to urge the integral trunnion and…
Method and apparatus for cooling turbine blades
Granted: February 27, 2024
Patent Number:
11913387
A minimum creep life location (MCLL) on a blade for a turbine blade design is received. A temperature at the MCLL on the blade is monitored. When the temperature at the MCLL exceeds a predetermined threshold, a cooling air supply is adjusted to lower the temperature below the threshold during engine operation.
Pressurized airflow to rotate compressor during engine shutdown
Granted: February 27, 2024
Patent Number:
11913376
A gas turbine engine includes a compressor section with a compressor rotor shaft assembly including a plurality of compressor rotors longitudinally spaced apart from each other via respective ones of a plurality of shaft sections of a rotor shaft, each compressor rotor of the plurality of compressor rotors having a plurality of rotor vanes extending radially outward therefrom and being circumferentially spaced about the compressor rotor. A stator shroud assembly has a stator shroud…
Combined anesthesia machine and breathing device
Granted: February 20, 2024
Patent Number:
D1015540
Devices, systems, and methods for providing on-demand engine software using a distributed ledger
Granted: February 20, 2024
Patent Number:
11907695
Devices, systems, and methods for providing software to aircraft using a distributed ledger are disclosed. A software delivery system includes aircraft having an engine control system configured to verify and install software utilized by components of the aircraft, an electronic distribution system coupled to the aircraft, an edge manager coupled to the electronic distribution system, and computing devices acting as nodes in a distributed ledger base maintaining a distributed ledger. The…
Fuel oxygen conversion unit with integrated water removal
Granted: February 20, 2024
Patent Number:
11906163
A fuel delivery system for a gas turbine engine includes a fuel source; a draw pump downstream of the fuel source for generating a liquid fuel flow from the fuel source; a main fuel pump downstream of the draw pump; and a fuel oxygen reduction unit downstream of the draw pump and upstream of the main fuel pump. The fuel oxygen reduction unit includes a stripping gas line; a contactor in fluid communication with the stripping gas line and the draw pump for forming a fuel/gas mixture,…
Differential gearbox assembly for a turbine engine
Granted: February 20, 2024
Patent Number:
11905890
A differential gearbox assembly for a turbine engine having a fan shaft and a drive shaft. The differential gearbox assembly includes an epicyclic gear assembly coupling the fan shaft to the drive shaft. The epicyclic gear assembly includes a sun gear, a planet gear constrained by a planet carrier, and a ring gear. The sun gear is coupled to the drive shaft and the planet carrier is coupled to the fan shaft. The sun gear, the planet gear, and the ring gear all rotate about the drive…
Hydrogen fuel system for a gas turbine engine
Granted: February 20, 2024
Patent Number:
11905884
A gas turbine engine includes: a turbomachine including a combustion section and an exhaust assembly arranged in serial flow order; and a fuel system. The fuel system includes: a hydrogen fuel tank for holding a hydrogen fuel in a liquid phase; and a hydrogen delivery assembly in thermal communication with the exhaust assembly. The hydrogen delivery assembly includes: a liquid hydrogen line in fluid communication with the hydrogen fuel tank; a gaseous hydrogen line in fluid communication…
Turbine engine component and method of cooling
Granted: February 20, 2024
Patent Number:
11905881
A component for a turbine engine includes a body having an outer surface confronting a combustion air flow path and defining an interior, as well as a first cooling passage having at least a portion supplying cooling air to the interior of the body. The component also includes a cyclone separator having a cooling air inlet, a clean air outlet, and a dirty air outlet.
Liner support system
Granted: February 20, 2024
Patent Number:
11905843
A liner support system for an exhaust liner in an aircraft engine. The liner support system includes a plurality of posts that space the exhaust liner from the exhaust duct, the plurality of posts spacing the exhaust liner from the exhaust duct further supporting the exhaust liner. Each post includes an interface region adjacent to the back side of the exhaust liner sealed to the back side of the exhaust liner, a shank extending to a low pressure region, and a hollow passageway internal…
Partition damper seal configurations for segmented internal cooling hardware
Granted: February 20, 2024
Patent Number:
11905842
Partition damper seal configurations for segmented internal cooling hardware apparatus are disclosed. An example apparatus includes an inner wall and an outer wall, the outer wall spaced apart from the inner wall in a radial direction, a space between the inner and outer walls defining a flow passage, and a body positioned between the inner and outer walls, the body traversing the inner and outer walls in an axial direction and attached to an inner surface of the outer wall and an outer…
Sealing system including a seal assembly between components
Granted: February 20, 2024
Patent Number:
11905837
A sealing system for sealing between components. The sealing system includes a first component, a second component, and a seal assembly including a seal member. The first component includes a first component surface, and the second component includes a second component surface. The second component surface is oriented in a direction transverse to the first contact surface. The seal member has a plurality of contact surfaces including a first contact surface and a second contact surface.…
Fabrication of chromium metal mixtures in the form of core-shell nanoparticles
Granted: February 20, 2024
Patent Number:
11905424
Core-shell microparticles, along with methods of their fabrication and use, are provided. The core-shell microparticles may include a core comprising a first metallic material having a first chromium content and a shell surrounding the core and comprising a second metallic material having a second chromium content that is less than the first chromium content. For example, the first chromium content may be 5% by weight or greater of elemental chromium within the first metallic material.
