Electric propulsor with electric machine in thermal communication with a heat exchanger
Granted: March 4, 2025
Patent Number:
12240615
An electric propulsor is provided. The electric propulsor includes a core cowl and an outer cowl. A first air flowpath is defined radially outward of the outer cowl and a second air flowpath is defined between the core cowl and the outer cowl. The electric propulsor also includes one or more electric machines, a fan rotatably drivable by at least one electric machine, and a booster having a plurality of airfoils disposed at least in part in the second air flowpath, the booster being…
Fault tolerant system and method for continuous skip-fire pulse width modulation for an active neutral point clamped converter
Granted: March 4, 2025
Patent Number:
12244244
A controller-implemented method and system for operating a multi-level bridge power converter connected to a power grid in a fault-tolerant operational mode, the power converter including a first converter coupled to a DC link, the first converter including a plurality of switching devices. The method and system determine an on/off scheme for the switching devices in the first converter when one or more of the switching devices has failed in a shorted state, wherein the on/off scheme is…
Methods and apparatus for a flux-modulated permanent magnet clutch
Granted: March 4, 2025
Patent Number:
12244204
Methods, apparatus, systems, and articles of manufacture are disclosed to a flux-modulated permanent magnet clutch. Disclosed is a magnetic clutch apparatus comprising a tension spring, an outer ring coupled to the tension spring, the outer ring including a first plurality of magnets, an inner ring coupled to an output shaft, the inner ring including a second plurality of magnets, the outer ring to magnetically engage with the inner ring, and an intermediate ring coupled to an input…
Methods, apparatuses, and storage media to track engine components
Granted: March 4, 2025
Patent Number:
12243358
Methods, apparatuses, systems, and storage media to track engine components are disclosed. An example apparatus includes a memory; instructions in the apparatus; and processor circuitry to in response to a notification that an engine is undergoing maintenance or in operation, identify an entry in a database that corresponds to the engine, the engine including a module; update historical data corresponding to the module based on the notification; and determine whether the module of the…
Hydrogen fuel leak detection system
Granted: March 4, 2025
Patent Number:
12241424
A fuel leak detection system for hydrogen fuel system including a monitored component. The fuel leak detection system including a sensor and controller communicatively coupled to the sensor. The sensor is positioned to monitor at least a portion of the monitored component. The sensor is configured (i) to sense a parameter corresponding to a hydrogen fuel leak of the monitored component and (ii) to generate an output. The controller is configured (i) to receive the output of the sensor,…
Turbine engine airfoil with a woven core and woven layer
Granted: March 4, 2025
Patent Number:
12241386
A gas turbine engine includes a compressor section, combustor section, and turbine section in serial flow arrangement, and defining an engine longitudinal axis. Sets of blades can be rotatably driven about the longitudinal axis in the compressor section and the turbine section, with adjacent vanes provided between sets of blades. The airfoil structure defining one or more of the blades or vanes can include a core structure which includes a woven or foam core, with an exterior woven…
Turbine engine with a composite-airfoil assembly having a dovetail portion
Granted: March 4, 2025
Patent Number:
12241383
A turbine engine having a disk, a composite airfoil assembly and a pitch snubber. The disk having a slot. The composite airfoil assembly having an airfoil portion and a dovetail portion. The dovetail portion having a radially inner surface spaced from the slot to define a gap therebetween. The pitch snubber being provided on one of the slot or the radially inner surface of the dovetail portion.
Cooling system for seal assemblies
Granted: March 4, 2025
Patent Number:
12241379
This disclosure is directed to cooling systems for turbomachine seal assemblies. The seal assemblies include stationary and rotating components and at least one interface between the stationary and rotating components. During operation of the turbomachine, the components of the seal assemblies generate heat, which is removed from the seal assembly by the cooling systems of this disclosure. In some examples, the cooling system includes a reservoir of lubricant that is distributed to a…
Seal support assembly for a turbine engine
Granted: March 4, 2025
Patent Number:
12241375
A turbine engine is provided. The turbine engine defines an axial direction and a radial direction, and includes: a rotor; a stator comprising a carrier; a seal assembly disposed between the rotor and the stator, the seal assembly defining a high-pressure side and a low-pressure side and comprising a plurality of seal segments, the plurality of seal segments including a seal segment having a seal face forming a fluid bearing with the rotor, a lip, and a body, the lip extending from the…
Seal assembly for a rotor shaft of a gas turbine
Granted: March 4, 2025
Patent Number:
12241372
A seal assembly for a gas turbine includes a seal case, and a seal shoe arranged within the seal case. The seal shoe includes a main seal portion that is configured to engage with a radial bearing engagement portion of a rotor shaft, a radial bearing surface that engages with the radial bearing engagement portion of the rotor shaft, at least one hydrodynamic lift cavity extending through the radial bearing surface, and at least one airflow passage extending from a first side of the seal…
Gas turbine combustion section having an integrated fuel cell assembly
Granted: March 4, 2025
Patent Number:
12240613
A combustion section defines an axial direction, a radial direction, and a circumferential direction. The combustion section includes a casing that defines a diffusion chamber. A combustion liner is disposed within the diffusion chamber and defines a combustion chamber the combustion liner is spaced apart from the casing such that a passageway is defined between the combustion liner and the casing. A fuel cell assembly is disposed in the passageway. The fuel cell assembly includes a fuel…
System and method for automated movement of a robotic arm
Granted: March 4, 2025
Patent Number:
12240130
A positioning system is provided for insertions and placements with increased accuracy and precision for the placement and insertion of components into elements. The system may utilize one or more sensors to provide individual images or data for each individual insertion of components into elements. The system may use known information to compare the individual images or data to provide increased accuracy and precision for insertion of components into elements.
Powder removal assemblies and methods of removing unbound particles using powder removal assemblies
Granted: February 25, 2025
Patent Number:
12233458
A powder removal assembly for removing powder from a part produced by additive manufacturing, including a process chamber including an outlet, a powder removal device coupled to the process chamber and configured to remove particles from the process chamber, a particle sensor coupled to the outlet, the particle sensor being configured to monitor an amount of particles passing through the outlet as a function of time, and a control system communicatively coupled to the particle sensor and…
Temperature control mechanism for an electrical component
Granted: February 25, 2025
Patent Number:
12237488
A temperature control mechanism for an electrical component having a plurality of cells each defining a longitudinal axis is provided. The temperature control mechanism includes a plurality of temperature control portions that respectively surround the plurality of cells, each of the plurality of temperature control portions respectively extend along the longitudinal axis of the plurality of cells in a first direction from a cell first side to a cell second side, wherein the plurality of…
Liner assembly for a combustor
Granted: February 25, 2025
Patent Number:
12234987
A liner assembly for a combustor. The liner assembly includes a liner defining a combustion chamber of the combustor. The liner includes a looped section at a forward end of the liner. The looped section includes one or more bends such that the looped section forms a compliant joint and vibrations are dampened through the liner downstream of the looped section.
Flow-metering fuel systems and related methods
Granted: February 25, 2025
Patent Number:
12234778
Flow-metering fuel systems and related methods are disclosed. An example apparatus includes a pipe defining a flow path for fuel, the pipe fluidly coupled to a combustor, a first portion of the pipe having a first cross-sectional area, a second portion of the pipe having a second cross-sectional area smaller than the first cross-sectional area, the second portion downstream of the first portion, and an actuator to adjust a flow rate of the fuel in the pipe based on a first pressure of…
Gas turbine engine having outlet guide vanes
Granted: February 25, 2025
Patent Number:
12234748
A gas turbine engine is provided having a plurality of outlet guide vanes, each defining an internal thermal fluid passageway. The engine defining an Outlet Guide Vane Cooling Capacity greater than 0.01 and less than 13, wherein OGVCC equals: [ HTSA OGV × BPR ( BPR + 1 ) × C a ? i ? r × ( T i ? n ? l ? e ? t - T a ? i ? r ) × v f ? l ? i ? g ? h ? t × D f ? a ? n F ? n T ? o ? t ? a ? l × v tip ? speed × ? ? H ] 1 / 3 , …
Variable pitch airfoil
Granted: February 25, 2025
Patent Number:
12234745
An airfoil assembly for a turbine engine, the airfoil assembly including a platform defining an inner surface and an outer surface, a variable pitch airfoil extending radially from the outer surface of the platform from a root to a tip to define a span length and a mounting structure connected to the platform.
Partition damper seal configurations for segmented internal cooling hardware
Granted: February 25, 2025
Patent Number:
12234742
Partition damper seal configurations for segmented internal cooling hardware apparatus are disclosed. An example airfoil includes an outer wall having a first rib spaced apart from a second rib on a surface of the outer wall, and an inner wall surrounded by the outer wall, the inner wall having a third rib protruding from the inner wall towards the surface of the outer wall, an end of the third rib detachably coupled to a portion of the surface of the outer wall, the portion of the…
Printing assemblies and methods for using the same
Granted: February 25, 2025
Patent Number:
12233643
An apparatus includes a printing head (154) comprising jet nozzles (158) spaced apart from one another, where a distance from a first jet nozzle to a second jet nozzle positioned adjacent the first jet nozzle defines a jet-spacing, a printing head position control assembly includes a first actuator assembly (102) to move the printing head along the longitudinal axis and a second actuator assembly (103) to move the printing head along a latitudinal axis, and an control unit…
