Guide vane assembly with fixed and variable pitch inlet guide vanes
Granted: February 18, 2025
Patent Number:
12228037
A guide vane assembly for a nacelle of a gas turbine engine includes a forward vane and an aft vane. The aft vane is located aft of the forward vane and forward of a plurality of fan blades. The forward vane defines a fixed pitch angle and the aft vane is movable between a first pitch angle and a second pitch angle.
Combustion section with a primary combustion chamber and a secondary combustion chamber
Granted: February 18, 2025
Patent Number:
12228286
A combustion section of a turbine engine having a primary combustion chamber and a secondary combustion chamber. The primary combustion chamber is defined, at least in part, by a combustor liner and a dome wall. A primary fuel nozzle having an outlet is located at the dome wall, wherein the outlet of the primary fuel nozzle is fluidly coupled with the primary combustion chamber. At least one opening located in an outer liner axially aft of the dome wall fluidly couples the secondary…
Gas turbine fuel nozzle having an inner air passage and plural outer fuel passages
Granted: February 18, 2025
Patent Number:
12228282
An engine can utilize a combustor to combust fuel to drive the engine. A fuel nozzle assembly can supply fuel to the combustor for combustion or ignition of the fuel. The fuel nozzle assembly can include a swirler and a fuel nozzle to supply a mixture of fuel and air for combustion. The fuel nozzle can include both a primary and secondary fuel passage, and an additional air passage to provide for greater flame control, fuel provision, or local fuel and air mixing prior to combustion.
Method for operating a wind turbine and a wind turbine
Granted: February 18, 2025
Patent Number:
12228109
A method (1000, 2000, 3000) for operating a wind turbine (100-100d) is disclosed. The wind turbine includes a power conversion system (114, 118, 210, 234, 410, 420, 430) configured to provide electrical output power (P) to a grid (242), and an air-cooling system (450) configured, in a cooling mode, to cool an ambient air (28a) and provide the cooled ambient air as a cooling air (28c) to the power conversion system (114, 118, 210, 234, 410, 420, 430). The method (1000, 2000, 3000)…
Methods for controlling actuating components of turbine engines using an adaptive damping filter
Granted: February 18, 2025
Patent Number:
12228084
Methods for controlling actuating components of turbine engines using an adaptive damping lag filter are provided. The adaptive filter includes features that filter out insignificant changes in actuator demand, respond to fast transient conditions to follow demanded positon of the actuating component more closely, and adapts the gain of the output position to avoid stall conditions.
Integral engine inlet frame air-cooled oil cooling apparatus
Granted: February 18, 2025
Patent Number:
12228075
Example systems and methods for integrating an air-cooled oil cooler into an inlet frame of an engine are provided. An example gas turbine engine comprises an inlet frame including an inlet plenum at a first end of an inlet frame flow path, the inlet frame defining an airflow entrance to a compressor; the compressor to provide an airflow through the inlet frame; a pump to circulate a fluid; a plurality of struts supporting the inlet frame flow path; and a fluid core connected to the pump…
Turbofan engine including integrated pylon and fan outlet guide vane with noise reduction features
Granted: February 18, 2025
Patent Number:
12228053
A turbofan engine and an outlet guide vane structure for the turbofan engine is provided. The outlet guide vane structure includes a non-uniform plurality of outlet guide vanes utilized in a bypass duct and between a radially inward wall and a radially outward wall. The non-uniform plurality of outlet guide vanes have varying chord lengths at the base of the outlet guide vanes along the radially inward wall. The non-uniform plurality of outlet guide vanes may include structural outlet…
Turbine engine airfoil
Granted: February 18, 2025
Patent Number:
12228048
A turbine engine includes a compressor section, a combustion section, and a turbine section, and an airfoil with an outer wall defining a pressure side and a suction side and extending between a leading edge and a trailing edge to define a mean camber line. A first thickness is defined between the pressure side and the suction side at a first location along the mean camber line.
Lubrication system for a turbine engine
Granted: February 18, 2025
Patent Number:
12228042
A lubrication system for a turbine engine having a longitudinal centerline axis and one or more rotating components. The lubrication system includes a primary lubrication system that supplies lubricant to the one or more rotating components during normal operation of the turbine engine. The lubrication system also includes an auxiliary lubrication system. The auxiliary lubrication system includes an auxiliary reservoir and a lubricant dispersion device. The auxiliary reservoir stores the…
System and method for cleaning a gas turbine engine and related wash stand
Granted: February 18, 2025
Patent Number:
12228041
A system for cleaning a gas turbine engine may generally include a wash stand having a base frame and a plurality of fluid injection nozzles configured to be supported by the base frame relative to the gas turbine engine. The nozzles may be configured to inject a cleaning fluid through an inlet of the fan casing of the engine as the fan blades are being rotated in a rotational direction such that the cleaning fluid is directed past the rotating fan blades and into a compressor inlet of…
Pitch change mechanism for an aircraft engine
Granted: February 18, 2025
Patent Number:
12227284
A pitch change mechanism for an aircraft engine includes a unison ring, a plurality of crankshafts coupled to the unison ring and configured to receive a plurality of blades, an inner shaft coupled to the plurality of crankshafts and the unison ring, and an actuator cylinder and an actuator piston. The actuator cylinder is coupled to the inner shaft and is configured to move relative to the actuator piston along a longitudinal axis of the pitch change mechanism. Movement of the actuator…
Method and apparatus for layer thickness control in additive manufacturing
Granted: February 18, 2025
Patent Number:
12226960
An additive manufacturing apparatus is disclosed. The apparatus includes a build surface, at least a portion of which is transparent. The apparatus includes a first material depositor operable to deposit a curable resin to form a deposited resin layer on the build surface. A first sensing device is configured to measure the thickness of the deposited resin layer; and wherein the at least one sensing device is configured to generate a signal indicative of the thickness of the deposited…
Systems and methods for controlling motion of detectors having moving detector heads
Granted: February 11, 2025
Patent Number:
12220271
Systems and methods for controlling motion of detectors having moving detector heads are provided. One system includes a gantry and a plurality of detector units mounted to the gantry, wherein the plurality of detector units are individually movable including translational movement and rotational movement. The system further includes a controller configured to control movement of the plurality of detector units to acquire Single Photon Emission Computed Tomography (SPECT) data, wherein…
Electric arc-blast nozzle with improved mechanical strength and a circuit breaker including such a nozzle
Granted: February 11, 2025
Patent Number:
12224137
Provided herein is an electric arc-blast nozzle for a circuit breaker comprising a median part internally defining an axial electric arc cut-off passage and formed with a first dielectric material, first and second end parts formed with the first dielectric material and extending on either side of the median part and being intended to receive first and second arc contacts being axially moveable in relation to each other. The nozzle further comprises a sheath that is disposed on the…
Monitoring, predicting and alerting for census periods in medical inpatient units
Granted: February 11, 2025
Patent Number:
12224058
Systems and techniques for monitoring, predicting and/or alerting for census periods in medical inpatient units are presented. A system can include a grouping component that defines a group of beds at a medical facility based on at least one grouping factor, and a group stability component that determines a measure of occupancy variability for the group based on historical census data for respective beds in the group. The system can further include a model selection component that…
System and methods for generating fault indications for an additive manufacturing process based on a probabilistic comparison of the outputs of multiple process models to measured sensor data
Granted: February 11, 2025
Patent Number:
12222838
Generating fault indications for an additive manufacturing machine based on a comparison of the outputs of multiple process models to measured sensor data. The method receiving sensor data from the additive manufacturing machine during manufacture of at least one part. Models are selected from a model database, each model generating expected sensor values for a defined condition. Difference values are computed between the received sensor data and an output of each of the models. A…
Turbine engine combustor and combustor liner
Granted: February 11, 2025
Patent Number:
12222104
A turbine engine can include a compressor section, a combustion section, and a turbine section in serial flow arrangement. A combustor in the combustion section can include a combustor liner at least partially defining a combustion chamber. The combustor liner can include at least one aperture fluidly coupled to the combustion chamber.
Turbine engine including a steam system
Granted: February 11, 2025
Patent Number:
12221905
A turbine engine for an aircraft. The turbine engine includes a fan, a combustor in a core air flowpath that generates combustion gases, a core shaft, a turbine that receives the combustion gases to rotate the turbine, and a steam system. The steam system extracts water from the combustion gases, vaporizes the water to generate steam, and injects the steam into the core air flowpath. The steam system includes one or more water storage devices that store the water therein. The one or more…
Compliant shroud designs with variable stiffness
Granted: February 11, 2025
Patent Number:
12221892
Methods, apparatus, systems and articles of manufacture are disclosed. A shroud assembly of a gas turbine engine includes: a first shroud arm having a first end and a second end, the first end to couple to an outer wall and the second end to couple to a first shroud pad, and a second shroud arm having a first end and a second end, the first end to couple to the outer wall and the second end to couple to a second shroud pad, at least one of the first shroud pad or the second shroud pad to…
Water-based binder solutions for use in additive manufacturing processes
Granted: February 11, 2025
Patent Number:
12221553
A water-based binder solution comprises a thermoplastic binder, greater than or equal to 4 wt % to less than or equal to 20 wt % of a non-aqueous solvent having a boiling point greater than or equal to 100° C. and less than or equal to 175° C., and water. The thermoplastic binder comprises a first polymer strand having a weight average molecular weight (Mw) of from 5,000 g/mol to 15,000 g/mol; and at least one of a second polymer strand having a weight average molecular weight (Mw) of…
