System and method for combining compressor bleed flow and ventilation flow of gas turbine engine
Granted: February 7, 2023
Patent Number:
11572829
A flow combiner is provided for a gas turbine engine. The flow combiner includes an outlet duct, a compressor bleed inlet duct coupled to the outlet duct, and a ventilation inlet duct coupled to the outlet duct. The compressor bleed inlet duct is configured to receive a bleed flow from a compressor of the gas turbine engine. The ventilation inlet duct is configured to receive a ventilation flow from an enclosure surrounding the gas turbine engine. The bleed flow and the ventilation flow…
Active asset monitoring
Granted: February 7, 2023
Patent Number:
11573879
Systems and techniques for active asset monitoring are presented. A system can collect a set of voltage measurements from one or more assets. The system can also perform learning associated with the set of voltage measurements and generate a set of digital signatures that includes a set of patterns regarding the set of voltage measurements. Furthermore, the system can determine monitor performance of an asset based on the set of digital signatures that includes the set of patterns…
Methods and systems for automated condition-based maintenance of mechanical systems
Granted: February 7, 2023
Patent Number:
11573561
This application provides methods and systems for automated condition-based maintenance of mechanical systems. Example systems may at least one memory coupled to one or more computer processors that are configured to receive first data from the mechanical system indicative of performance of a first component of the mechanical system, determine, using the first data, a first performance metric for the first component, determine, using the first performance metric, a probability value that…
Cyclone cooler device
Granted: February 7, 2023
Patent Number:
11573053
A cyclone cooler device includes a housing that defines an interior channel elongated along a center axis. One or more of the fluid passage or configuration of an inlet end of the channel is shaped to induce a swirling flow of a cooling fluid within the channel while the channel is thermally coupled with one or more heat sources. The swirling flow of the cooling fluid removes thermal energy from and cools the one or more heat sources. During the swirling flow, the cooling fluid rotates…
System and method for use of a tunable mass damper to reduce vibrations in wind turbine blades in a locked or idling condition of the rotor hub
Granted: February 7, 2023
Patent Number:
11572868
A system and method are provided for reducing vibrations and loads in one or more rotor blades on a rotor hub of a wind turbine when the rotor hub is in a locked or idling condition. An electronically tunable mass damper is attached to a fixed location on one or more of the rotor blades. The mass damper is maintained on the rotor blades during the locked or idling condition of the rotor hub. The method includes sensing movement of a mass component of the mass damper from vibrations or…
Spar cap configuration for a jointed wind turbine blade
Granted: February 7, 2023
Patent Number:
11572863
A jointed wind turbine rotor blade includes a first blade segment and a second blade segment extending in opposite directions from a chord-wise joint line. Each of the first and second blade segments includes opposite spar caps. The first and second blade segments are connected at the chord-wise joint line by internal joint structure, wherein the joint structure is bonded to the opposite spar caps in at least the second blade segment. The spar caps in the second blade segment have a…
Method for forming a rotor blade for a wind turbine
Granted: February 7, 2023
Patent Number:
11572861
The present disclosure is directed to a method for forming a wind turbine rotor blade. The method includes placing first and second prefabricated skin panels defining a portion of a root section of the wind turbine rotor blade, a pressure side of the wind turbine rotor blade, or a suction side of the wind turbine rotor blade in a mold. The first and second prefabricated skin panels partially overlap to define a connection region. A vacuum bag is placed over the mold. The connection…
Multi-mode combustion control for a rotating detonation combustion system
Granted: February 7, 2023
Patent Number:
11572840
A computer-implemented method for multi-mode operation of a combustion system, a combustion system, and a heat engine are provided. The method includes initializing combustion of a fuel/oxidizer mixture, determining whether conditions at the combustion system meet or exceed a first threshold operating parameter, transitioning to detonation combustion of the fuel/oxidizer mixture if conditions at the combustion system meet or exceed the first threshold operating parameter, and maintaining…
Accessory gearbox for a turbine engine
Granted: February 7, 2023
Patent Number:
11572838
A turbine engine that includes an engine core, an inner cowl, an outer cowl and an accessory gearbox. The engine core includes at least a compressor section, a combustion section, and a turbine section in axial flow arrangement. The accessory gearbox is operably coupled to the engine core and includes a first portion and a second portion.
Combustor dilution hole
Granted: February 7, 2023
Patent Number:
11572835
A turbofan gas turbine engine configured to reduce hotspots within combustors. The engine includes an axis and a combustor that is circumferentially disposed about the axis. The combustor includes an annular combustor liner that includes a front portion and a rear portion. The annular combustor liner is joined to an annular combustor dome via front portion and defines a chamber and a nozzle is mounted within the annular combustor dome and is configured to inject fuel into a plurality of…
Unducted propulsion system
Granted: February 7, 2023
Patent Number:
11572827
Apparatuses and systems are provided herein for unducted propulsion systems. The system includes an aft housing for low drag for high subsonic sustained flight. A plurality of blades are affixed to the aft housing, wherein the housing defines a flowpath curve extending from the axial extent of the aft blade root to the aft end of the aft housing. The flowpath curve is described by an axial direction parallel to an axis of rotation and a radius from the axis of rotation. The flowpath…
Turbine bearing maintenance apparatus and method
Granted: February 7, 2023
Patent Number:
11572806
Various embodiments include methods for performing maintenance on a gas turbine bearing area. In some cases, a method includes: separating sections of an inlet bellmouth of the gas turbine without removing the sections of the inlet bellmouth from the gas turbine; removing a housing from over a bearing of the gas turbine; mounting a bearing maintenance apparatus adjacent the inlet bellmouth and the bearing; and performing maintenance on the bearing area while the sections of the inlet…
Turbine airfoil with leading edge cooling passage(s) coupled via plenum to film cooling holes, and related method
Granted: February 7, 2023
Patent Number:
11572803
A turbine airfoil includes a body including a wall defining pressure and suction sides, and a leading edge extending between the pressure and suction sides. A cooling circuit inside the wall of the body includes at least one of: a) a suction side to pressure side cooling sub-circuit including a first cooling passage(s) extending from the suction side to the pressure side around the leading edge to a first plenum, and a plurality of first film cooling holes communicating with the first…
Turbine engine component with baffle
Granted: February 7, 2023
Patent Number:
11572801
The disclosure relates to a component for a turbine engine with a heated airflow and a cooling airflow. The component includes a wall separating the heated airflow from the cooling airflow. The wall can have a heated surface confronting the heated airflow and a cooled surface confronting the cooling airflow. The component can also include a baffle with a set of cooling holes.
Inner shroud damper for vibration reduction
Granted: February 7, 2023
Patent Number:
11572794
Methods, apparatus, systems and articles of manufacture are disclosed. An inner shroud damper for a gas turbine engine includes: at least one carrier including a joint to couple to an inner shroud, the at least one carrier having a first side and a second side, and at least one mass damper coupled to the at least one carrier.
Vibration damping system for turbine nozzle or blade using damper pins with wire mesh members 1HEREON
Granted: February 7, 2023
Patent Number:
11572791
A vibration damping system for a turbine nozzle or blade includes a vibration damping element including a plurality of contacting members including a plurality of damper pins. Each damper pin includes a body. A wire mesh member surrounds the body of at least one of the plurality of damper pins. The wire mesh member has a first outer dimension sized for frictionally engaging within a body opening in the turbine nozzle or blade to damp vibration. Spacer members devoid of a wire mesh member…
Ceramic slurries with photoreactive-photostable hybrid binders
Granted: February 7, 2023
Patent Number:
11572313
Ceramic slurries may include ceramic particles, a photoreactive-photostable hybrid binder, and a photoinitiator. The photoreactive-photostable hybrid binder may include a photoreactive organic resin component, a photoreactive siloxane component, and one or more photostable siloxane components. Methods of forming a ceramic part may include curing a portion of a ceramic slurry by exposing the portion of the ceramic slurry to light to form a green ceramic part, and partially firing the…
Test article for additive manufacture and related methods
Granted: January 31, 2023
Patent Number:
11565477
Embodiments of the disclosure provide a test article for additive manufacture and related methods. A test article formed may include a body having a forward face and a rearward face horizontally opposite the forward face. A first surface extending between the forward face and the rearward face of the body may include a plurality of protrusions for removable coupling of the body to a build plate. A second surface on the body may extend between the forward face and the rearward face of the…
Electrical machines for integration into a propulsion engine
Granted: January 31, 2023
Patent Number:
11566533
An electrical machine includes a stator assembly coupled to an engine stator component of a propulsion engine. The stator assembly includes a stator support assembly fixedly attached to the engine stator component and a stator disposed on the stator support structure. An electrical machine shaft is coupled to an end of a shaft of the propulsion engine via an intermediate shaft member extending axially between the end of the shaft and the electrical machine shaft. A bearing support frame…
Laminate assembly with embedded conductive alloy elements
Granted: January 31, 2023
Patent Number:
11565505
A laminate assembly includes a matrix layer and elongated, continuous strips of a conductive alloy. The matrix layer has opposite first and second sides connected by opposite first and second edges. Each of the first and second edges extends from the first side of the matrix layer to the opposite second side of the matrix layer. The elongated, continuous strips of the conductive alloy are disposed in the matrix layer between the first and second sides of the matrix layer. The elongated…
