Patents Examined by Brandon D Lee
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Patent number: 12140096Abstract: A controller for an aftertreatment system coupled to an engine is configured to: in response to receiving an engine shutdown signal, determine an estimated amount of ammonia stored on a selective catalytic reduction (SCR) catalyst included in the aftertreatment system; in response to determining that the estimated amount of ammonia stored in the SCR catalyst is less than an ammonia storage threshold, cause flow of a heated gas towards the SCR catalyst; cause insertion of a reductant into an exhaust gas flowing through the aftertreatment system; and in response to determining that the estimated amount of ammonia stored in the SCR catalyst is equal to or greater than the ammonia storage threshold, cause shutdown of the engine.Type: GrantFiled: August 8, 2023Date of Patent: November 12, 2024Assignee: Cummins Emission Solutions Inc.Inventors: Matthew K. Volmerding, Simon Guest
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Patent number: 12140061Abstract: The disclosure relates to an exhaust gas sub-system for an internal combustion engine, having a catalytic converter with an inlet section for introducing an exhaust gas flow into the outer housing and having a feed line for secondary gas, the feed line having an inflow element at the end, which opens at the inlet section, the outer housing has an inlet opening for exhaust gas, an external heating element for heating the secondary gas and for generating hot gas being provided in the feed line upstream of the inflow element, at least one inflow opening in the outer housing being assigned to the inflow element, via which hot gas can be fed into the inlet section.Type: GrantFiled: July 22, 2022Date of Patent: November 12, 2024Assignee: Tenneco GmbHInventors: Sascha Vollmer, Andreas Lang, Daniel Trzebinski, Wladimir Rikow, Aaron Manley
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Patent number: 12140059Abstract: A device and method for correcting emissions can include a first sensor that measures a sample of air not containing an exhaust gas, and a second sensor, wherein the exhaust gas enters a settling chamber and a relative humidity of the exhaust gas is measured by the second sensor. A microcomputer can calculate a mass of water vapor in the sample of air measured by the first sensor and in the exhaust gas measured by the second sensor and can determine a dilution factor of the measured exhaust gas. The dilution factor can be used for correcting emissions based on the measurements of the exhaust gas made by the first sensor and the second sensor. The first and second sensors can comprise one or more of, for example, a relative humidity sensor, a dew point sensor, a trace water vapor sensor and/or other types of sensors.Type: GrantFiled: April 12, 2023Date of Patent: November 12, 2024Assignee: Honeywell International Inc.Inventor: Wyatt Culler
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Patent number: 12129832Abstract: The present invention relates to a wind turbine blade comprising a lightning protection system with at least one tip end lightning receptor arranged at an outer surface of the blade and a down conductor extending within the blade. The blade comprises carbon fibre reinforced spar caps, wherein electrically conductive meshes are connected between the respective tip end of each spar cap to the tip end lightning conductor.Type: GrantFiled: November 15, 2021Date of Patent: October 29, 2024Assignee: LM WIND POWER A/SInventors: Lars Bo Hansen, Karsten Schibsbye
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Patent number: 12116919Abstract: A heavy duty truck includes a diesel engine that generates an exhaust gas flow and an exhaust after-treatment system for treatment of the exhaust gas flow. The exhaust after-treatment system includes at least one temperature sensor at an underbody SCR system within the exhaust after-treatment system and a DEF injector upstream of a close-coupled SCR system within the exhaust after-treatment system. The DEF injector is operated to inject DEF into the exhaust gas flow at a rate that varies as a function of a temperature measured by the temperature sensor.Type: GrantFiled: April 18, 2023Date of Patent: October 15, 2024Assignee: PACCAR IncInventors: Cynthia Chaffin Webb, Charles Wayne Reinhardt Swart
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Patent number: 12116917Abstract: A connection unit connects an electrical supply line to an exhaust-gas heater of an exhaust system. The connection unit includes a connection element having an electrically conductive connection-element body. The connection element has an exhaust-gas heater connection region in a first axial end region and has a supply-line connection region in a second axial end region. The supply-line connection region includes an end portion of the connection-element body and a radial projection adjoining the end portion. A carrier element fixes the connection unit to an exhaust-system component. The carrier element has a carrier-element opening wherethrough the connection-element body passes. A support unit axially and radially supports the connection element on the carrier element.Type: GrantFiled: June 1, 2023Date of Patent: October 15, 2024Assignee: Purem GmbHInventor: Holger Brenner
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Patent number: 12116922Abstract: A catalytic converter system having oxygen storage materials is disclosed and methods for determining whether to reactivate oxygen storage materials and monitoring failure events of the oxygen storage materials are also disclosed.Type: GrantFiled: April 17, 2023Date of Patent: October 15, 2024Assignee: Ford Global Technologies, LLCInventors: Jason Wu, Eva Thanasiu, Giovanni Cavataio, Carolyn Parks Hubbard, Andrew Gregory Getsoian, Yisun Cheng, Natalie Roxas, Michael James Uhrich
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Patent number: 12104518Abstract: Method for emptying an SCR supply system, wherein the SCR supply system comprises a pump with a pump chamber and an actively controllable inlet valve and an actively controllable outlet valve, wherein an emptying process of the SCR supply system is detected and controlled as a function of the pressure curve in negative pressure phases and/or criteria determined in pressure release phases.Type: GrantFiled: November 16, 2023Date of Patent: October 1, 2024Assignee: Robert Bosch GmbHInventor: Rohit Joshi
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Patent number: 12104531Abstract: A cooling system for a turbine engine. The turbine engine includes a compressor, a turbine, and a shaft that drivingly couples the compressor and the turbine. The cooling system includes one or more cavities of the compressor. The cooling system includes a shaft flowpath defined in the shaft. The shaft includes one or more shaft apertures that provide fluid communication between the shaft flowpath and the one or more cavities. Air passes through the one or more shaft apertures and the shaft flowpath during a shutdown of the turbine engine to cool the one or more cavities.Type: GrantFiled: November 29, 2022Date of Patent: October 1, 2024Assignee: GENERAL ELECTRIC COMPANYInventors: Kudum Shinde, Sesha Subramanian, Rachamadugu Sivaprasad, Ravindra Shankar Ganiger
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Patent number: 12104620Abstract: A bearing assembly may be provided for mounting a rotor which can be rotated about a rotational axis. In particular, for a rotary fluid pump or rotary blood pump comprising: a main body, a bearing element which can be displaced relative to the main body in the direction of the rotational axis for receiving the rotor, and an adjusting device which is connected to the bearing element for displacing the bearing element in the direction of the rotational axis by a predefined distance, wherein the predefined distance is <=500 micrometres.Type: GrantFiled: September 26, 2019Date of Patent: October 1, 2024Assignee: Berlin Heart GmbHInventors: Sascha Pielka, Bodo Schmidt
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Patent number: 12078073Abstract: An assembly is provided for a turbine engine. This turbine engine assembly includes a rotating assembly and a sensor. The rotating assembly is configured to rotate about an axis. The rotating assembly includes an engine shaft, a phonic wheel and a lubricant scoop. The phonic wheel is mounted onto the engine shaft. The phonic wheel includes an outer surface and a plurality of apertures arranged circumferentially about the axis. Each of the apertures projects at least partially radially into the phonic wheel from the outer surface. The lubricant scoop is radially outboard of and axially overlaps the outer surface. The sensor is configured to measure fluctuations in a magnetic field induced by the phonic wheel during rotation of the rotating assembly about the axis.Type: GrantFiled: May 26, 2023Date of Patent: September 3, 2024Assignee: RTX CORPORATIONInventor: Joseph B. Phelps
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Patent number: 12078091Abstract: A system and method for filtering exhaust gases of a vehicle is disclosed, that are based on an exhaust filter assembly includes an enclosure having an inlet coupled with an end of an exhaust pipe to allow exhaust gases of the vehicle into the enclosure, a filter element fitted with the enclosure to adsorb gaseous particles, moisture, and unburned fuel mist particles of the exhaust gases, sensors to sense gaseous particles adsorbed on the filter element, and generate first signals based on the sensed gaseous particles; a control unit; and a communication unit. The control unit includes processors to: receive the generated first signals, and generate second signals based on the received first signals. The communication is configured to transmit the second signals to computing devices of users to notify the users. Thermoelectric generator is adapted to convert heat energy of the exhaust gases into electric power.Type: GrantFiled: August 6, 2019Date of Patent: September 3, 2024Inventor: Rishi Bhatnagar
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Patent number: 12066350Abstract: A method for determining a combustion gas composition of a combustion gas for an internal combustion engine includes operating the engine, and establishing an operating point of the internal combustion engine during operation. The method also includes detecting a nitrogen oxide emission of the internal combustion engine at the operating point. The method further includes detecting an exhaust gas temperature of the internal combustion engine at the operating point, and detecting a combustion air ratio of the internal combustion engine at the operating point. The combustion gas composition of the combustion gas is determined based on the operating point, the detected nitrogen oxide emission, the detected exhaust gas temperature and the detected combustion air ratio.Type: GrantFiled: July 12, 2021Date of Patent: August 20, 2024Assignee: MAN Truck & Bus SEInventors: Heiko Krauss, Torsten Gehrmann
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Patent number: 12065959Abstract: Heating of the charge air in an intake is provided by a working fluid that is circulated through the intake to exchange heat with the charge air. The heated charge air can be used in response to a thermal management condition for an exhaust gas produced by operation of the internal combustion engine.Type: GrantFiled: September 9, 2022Date of Patent: August 20, 2024Assignee: Cummins Inc.Inventors: Timothy C. Ernst, Daniel J. Mohr
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Patent number: 12065957Abstract: A cylindrical can body capable of housing a honeycomb structure therein, the cylindrical can body including: a coil for induction-heating the honeycomb structure; a cylindrical member made of an insulating material; and a cylindrical metal member capable of housing the coil and the cylindrical member therein, wherein, in a cross section parallel to an axial direction of the cylindrical member, (i) the coil is provided radially outward from an inner circumferential surface of the cylindrical member, and at least a part of the coil is embedded in the cross section of the cylindrical member; or (ii) the coil is provided on an outer circumferential portion of the cylindrical member.Type: GrantFiled: February 7, 2023Date of Patent: August 20, 2024Assignee: NGK INSULATORS, LTD.Inventors: Yukio Miyairi, Masaaki Masuda, Shuichi Ichikawa, Takuya Ishihara
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Patent number: 12065954Abstract: An aftertreatment system for a vehicle is connectable to an internal combustion engine The aftertreatment system includes an oxidation catalyst, a first NOx sensor arranged upstream the oxidation catalyst, a second NOx sensor arranged downstream the oxidation catalyst, and a control unit comprising a processor device configured to determine a sensor based conversion ratio of nitric oxides to nitrogen dioxides by the oxidation catalyst from data received from first and second NOx sensor, obtain an estimated conversion ratio of nitric oxides to nitrogen dioxides by the oxidation catalyst from a model, and determine a malfunction condition of the aftertreatment system in response to the sensor based conversion ratio being different from the estimated conversion ratio, and perform a responsive action of the aftertreatment system based on the malfunction condition.Type: GrantFiled: November 17, 2023Date of Patent: August 20, 2024Assignee: VOLVO TRUCK CORPORATIONInventors: Åsa Högström, Irman Svraka
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Patent number: 12054234Abstract: Dual propeller assemblies for driving engagement by a propeller drive shaft may include at least two propellers having a forward propeller and a rear propeller rearwardly of the forward propeller. The forward propeller may include a forward propeller hub with a forward propeller hub wall having a forward propeller hub outer diameter. A forward propeller hub bore may be formed by the forward propeller hub wall and configured to receive the propeller drive shaft for driving engagement of the forward propeller hub thereby. The forward propeller hub bore may form a passageway for flow of exhaust gas configured to traverse the forward propeller between the propeller drive shaft and the forward propeller hub wall. The rear propeller may include a rear propeller hub with a rear propeller hub wall having a rear propeller hub outer diameter less than the forward propeller hub outer diameter of the forward propeller hub wall of the forward propeller hub.Type: GrantFiled: May 17, 2023Date of Patent: August 6, 2024Inventor: Charles S. Powers
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Patent number: 12055044Abstract: A rim seal arrangement for a gas turbine engine includes a rotor and a stator. The rotor includes blades circumferentially spaced about a disc hub, each blade including a rotor flange. The stator includes vanes circumferentially spaced and attached to a stationary component, each vane including a stator flange. The stator flange includes an outer surface, an inner surface, a chamfer, and a groove for producing a recirculation flow adjacent to a radial gap between the rotor flange and the stator flange.Type: GrantFiled: October 6, 2023Date of Patent: August 6, 2024Assignee: PRATT & WHITNEY CANADA CORP.Inventor: Lorenzo Sanzari
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Patent number: 12055114Abstract: Systems and methods for diagnosing an exhaust aftertreatment system are provided. A method includes: receiving, by a controller and for each sensor of a plurality of sensors, one or more respective degradation level indicators indicative of one or more failure levels of the sensor, each of the one or more degradation level indicators determined using a corresponding performance parameter; receiving, by the controller and for each sensor of the plurality of sensors, one or more diagnosis threshold values; determining, by the controller, a multipoint diagnosis threshold value using the one or more diagnosis threshold values associated with the plurality of sensors; detecting, by the controller, an operational state of the aftertreatment system by comparing a performance value of the aftertreatment system to the multipoint diagnosis threshold value; and causing, by the controller, an indication of the operational state of the aftertreatment system to be displayed on a display device.Type: GrantFiled: October 16, 2023Date of Patent: August 6, 2024Assignee: Cummins Inc.Inventors: Rutika Kaustubh Gokhale, Adrian Adolfo Jarrin, Arun Shori Sundaravel Damotharan
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Patent number: 12043402Abstract: An assembly for an aircraft propulsion system includes an intercooler assembly and a controller. The intercooler assembly includes an intercooler and a flow control assembly. The intercooler includes a primary air inlet, a primary air outlet, a secondary air inlet, and a secondary air outlet. The flow control assembly is disposed at the secondary air outlet. The flow control assembly includes an actuator and at least one flap. The actuator is configured to position the at least one flap in an open position, a closed position, and intermediate positions. The controller is configured to control the actuator to position the at least one flap in the open position, determine a hot-side heat transfer effectiveness of the intercooler and a hot-side mass flow rate for the intercooler, determine a cold-side mass flow rate of the intercooler, identify a position of the actuator, and identify a successful or an unsuccessful actuator range check for the actuator.Type: GrantFiled: September 26, 2023Date of Patent: July 23, 2024Assignee: PRATT & WHITNEY CANADA CORP.Inventors: Xuening Lu, Ezzat Meshkinfam, Thomas Trevor Ricci