Patents Examined by Dapinder Singh
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Patent number: 11919627Abstract: A method of modifying a rotor blade is provided for a rotor blade including a spar having an inboard portion with a substantially constant overall height, the inboard portion further including a top layer having a substantially constant first thickness and a bottom layer having a substantially constant second thickness. The method includes removing a root portion of the inboard portion to thereby modify the rotor blade and installing a cuff configured to couple to the rotor blade to an aircraft.Type: GrantFiled: August 4, 2022Date of Patent: March 5, 2024Assignee: LOCKHEED MARTIN CORPORATIONInventors: Joshua A. Breon, Eric S. Parsons, Timothy James Conti, Frank M. Caputo
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Patent number: 11920511Abstract: A turbocharger system for diesel trucks includes a compressor in gaseous communication with an engine; a turbine in gaseous communication with the engine via an exhaust manifold; the compressor intakes and compresses air to be pushed to the engine; an air compressor with one or more air tanks, the air compressor to pressurize and store air; one or more pipes connecting the air compressor to the exhaust manifold; a solenoid valve to open and close the one or more pipes between the air compressor and the exhaust manifold; and a control system to operate the solenoid valve; a command from the control system to the solenoid valve opens the solenoid valve to push air from the air compressor to the exhaust manifold to expand and speed up a turbo of the engine.Type: GrantFiled: December 21, 2022Date of Patent: March 5, 2024Inventor: Charles Elders
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Patent number: 11920529Abstract: A first output limit value is determined as an intersection point of a knock-limit output line which is set according to an exhaust gas recirculation rate and ignition timing and an exhaust-temperature-limit output line which is set according to the exhaust gas recirculation rate and ignition timing; a second output limit value is determined as an intersection point of the knock-limit output line and an air-quantity-limit output line which is set according to the exhaust gas recirculation rate, ignition timing and atmospheric pressure; and a third output limit value is determined as an intersection point of the knock-limit output line and a thermal-management-limit output line which is set according to the exhaust gas recirculation rate, ignition timing and vehicle running speed. A value of the exhaust gas recirculation rate at which the condition “P1?P2 or P1?P3” is satisfied is set as a target exhaust gas recirculation rate.Type: GrantFiled: April 15, 2021Date of Patent: March 5, 2024Assignee: NISSAN MOTOR CO., LTD.Inventors: Takayoshi Kodama, Yoshihiko Iwabuchi
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Patent number: 11920533Abstract: A system includes an aftertreatment system heater of an exhaust aftertreatment system coupled to an engine A controller coupled to the aftertreatment system heater is configured to determine a condition of an exhaust gas from an engine and compare the condition to a predefined threshold. If the condition of the exhaust gas does not meet the predefined threshold, the controller is configured to determine whether an engine operating condition is met for activating a cylinder deactivation operating mode for the engine. If the engine operating condition is met, the controller is configured to operate the engine in the cylinder deactivation operating mode by deactivating a cylinder of a plurality of cylinders. If the engine operating condition is not met, the controller is configured to activate the aftertreatment system heater to heat the exhaust gas.Type: GrantFiled: May 27, 2020Date of Patent: March 5, 2024Assignees: Cummins Inc., Tula Technology, Inc.Inventors: Jennifer Kay Light-Holets, J. Steven Kolhouse, Christopher R. Nelson, Anant Puri, Xiaobo Song, Avra Brahma
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Patent number: 11913466Abstract: To eliminate accumulation of air while preventing a decrease in pump efficiency, a pump is provided. The pump includes a rotary shaft, an impeller that is attached to the rotary shaft and that rotates with rotation of the rotary shaft, a casing that surrounds the rotary shaft, a shaft sealing device that seals a gap between the casing and the rotary shaft, and a baffle plate part that is located between the impeller and the shaft sealing device and attached to a rotating body. The baffle plate part extends in a direction that is inclined or orthogonal with respect to a surface orthogonal to an axial direction of the rotary shaft.Type: GrantFiled: December 16, 2020Date of Patent: February 27, 2024Assignee: EBARA CORPORATIONInventors: Seigo Kyo, Yoichi Nakamura, Akinori Murata, Soichiro Ogawa, Dong Min Kim
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Patent number: 11913363Abstract: A method for manufacturing a position indicator sensor wheel for a camshaft is disclosed. The position indicator includes an axially extending passage for connecting to the camshaft and at least one radially projecting tooth. The method includes providing a sheet from a sheet material; introducing the passage into the sheet; and roughening a radial inner surface of the passage in at least one rough portion.Type: GrantFiled: June 20, 2023Date of Patent: February 27, 2024Assignee: Mahle International GmbHInventors: Tilo Hentschel, Mathias Rummel, Christoph Steinmetz
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Patent number: 11905971Abstract: A water pump having a coolant flow path includes a stator disposed in a housing, a rotor surrounded by the stator, a shaft disposed in a flow path of the rotor, a first blade connected to the shaft, a first pipe spaced apart from an inner wall of the rotor defining the flow path to define a coolant inlet, a second pipe spaced apart from the inner wall to define a coolant outlet, and a second blade connected to the shaft and disposed in the first pipe or the second pipe.Type: GrantFiled: March 10, 2023Date of Patent: February 20, 2024Assignees: Hyundai Motor Company, Kia CorporationInventor: Young June Oh
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Patent number: 11905871Abstract: Various embodiments of the teachings herein include a method for heating a catalytic converter arranged in an exhaust-gas tract of an internal combustion engine and comprising an electric heating device. An example method may include: activating the electric heating device with a specified heating power at a time before the internal combustion engine is started; monitoring the catalyst temperature in a region of the catalytic converter adjacent the heating device; before the catalyst temperature has reached a predetermined first threshold value, supplying a secondary air mass flow with a first flow rate is supplied into the exhaust-gas tract upstream of the catalytic converter; and after the catalyst temperature has reached the predetermined first threshold value, increasing the secondary air mass flow to a second flow rate greater than the first flow rate.Type: GrantFiled: November 11, 2021Date of Patent: February 20, 2024Assignee: VITESCO TECHNOLOGIES GMBHInventors: Florian Kleiner, Erwin Achleitner, Hendra Kurniawan, Soufiane Kolodziej
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Patent number: 11898479Abstract: An engine device includes an exhaust gas purification device above a cylinder head through a support pedestal. The support pedestal has a flat portion on which the exhaust gas purification device is mounted, and a plurality of legs which protrude downward form the flat portion and are fixed to the cylinder head. The flat portion and the leg portion are formed integrally. Portions between the legs are each formed in an arch-shape.Type: GrantFiled: November 26, 2022Date of Patent: February 13, 2024Assignee: Yanmar Power Technology Co., Ltd.Inventors: Yu Matsui, Naotoshi Furukawa
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Systems and methods for operating passive nitrogen oxide adsorbers in exhaust aftertreatment systems
Patent number: 11898483Abstract: A system includes a catalyst for receiving and treating exhaust gas generated by an engine, a passive NOx adsorber (PNA) positioned upstream of the catalyst, a bypass valve positioned upstream of the catalyst and the PNA, and a controller. The controller is configured to, determine that the catalyst is operating under cold start conditions, control the bypass valve to direct exhaust gas to the PNA, determine that the catalyst is no longer operating under cold start conditions and continue to control the bypass valve to direct exhaust gas to the PNA for a predetermined duration, and after the elapse of the predetermined duration, control the bypass valve to direct exhaust gas to the catalyst bypassing the PNA. The controller is also configured to detect a high transient torque demand while the exhaust gas is provided to the PNA, and split the torque demand between the engine and an electric motor.Type: GrantFiled: May 19, 2022Date of Patent: February 13, 2024Assignee: Cummins Inc.Inventors: Jinyong Luo, Xiaobo Song, Xing Jin, David Schmidt, Lu Qiu, Lisa A. Orth-Farrell, Ying Yuan, Manik Narula, Lars K. Henrichsen -
Patent number: 11898477Abstract: A controller for an internal combustion engine is configured to execute a determination process and an anomaly diagnosing process. The determination process is a process of determining that a deviation between a first change amount and a second change amount during a fuel cutoff operation is less than or equal to a threshold. The anomaly diagnosing process is a process of determining that an exhaust purification device is in a detached state when it is determined in the determination process that the deviation is less than or equal to the threshold. The first change amount and the second change amount are change amounts per unit time of the temperature of exhaust gas on the upstream side and the downstream side of the exhaust purification device, respectively.Type: GrantFiled: June 6, 2023Date of Patent: February 13, 2024Assignee: Toyota Jidosha Kabushiki KaishaInventors: Toru Yaeo, Yoshifumi Matsuda, Masashi Hakariya, Atsushi Morikawa, Ikuo Hoda, Noriyasu Adachi, Masanori Hayashi, Kenji Igawa
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Patent number: 11885328Abstract: A scroll device has a fixed scroll, and orbiting scroll, and at least an integrated cooling loop configured to receive coolant to cool the fixed scroll and the orbiting scroll. A flexible conduit is provided that curves radially around an orbital axis of the orbiting scroll to transfer coolant along integrated cooling loop. The integrated cooling loop separates coolant used to cool the fixed scroll and the orbiting scroll from the involutes of the scroll device providing clean operation of the scroll device. The integrated cooling loop may be defined by the flexible conduit, one or more cooling chambers, and/or one or more cooling passageways.Type: GrantFiled: July 19, 2022Date of Patent: January 30, 2024Assignee: Air Squared, Inc.Inventors: Nathan D. Nicholas, Joshua R. Mesward, John P. D. Wilson
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Patent number: 11878347Abstract: An impeller includes a central shaft or a tube for mounting on a shaft; around the shaft or tube a hollow hub, which in the direction from one end to the other end increases in diameter. The hub possesses an outside and an inside oriented towards the shaft or tube; a back wall which is provided at the end of the hub with the largest diameter perpendicular to the shaft or tube which at least partially closes the hollow space of the hub; a series of blades that are attached to the outside of the hub by their base; wherein a number of flat, straight reinforcing ribs are provided which extend on the shaft or tube in an essentially radial direction and form a radial connection between the shaft or tube and the inside of the hub.Type: GrantFiled: November 26, 2019Date of Patent: January 23, 2024Assignee: ATLAS COPCO AIRPOWER, NAAMLOZE VENNOOTSCHAPInventors: Karolien Kempen, Hilde De Gersem, Guy De Greef
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Patent number: 11879389Abstract: An exhaust turbine includes a turbine wheel having a plurality of rotor blades, an exhaust outlet where the exhaust outlet is arranged downstream of the rotor blades and is delimited radial to the outside by an axial turbine diffusor. An exhaust mass flow can be output in an axial flow direction by the exhaust outlet duct and the axial turbine diffusor opens downstream, radially to the outside at a non-constant diffusor-opening angle, such that at a first diffusor-opening angle deviates from a second diffusor-opening angle by at least 1°. The exhaust turbine further includes a waste gate duct, the outlet region of which opens into the diffusor or directly downstream of the diffusor into the exhaust outlet duct. The waste gate duct is designed to generate a substantially axial flow direction of a waste gate mass flow at the outlet region of the waste gate duct.Type: GrantFiled: September 9, 2020Date of Patent: January 23, 2024Assignee: Turbo Systems Switzerland Ltd.Inventors: Christoph Mathey, Stephan Senn
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Patent number: 11879380Abstract: A power delivery system includes a turbocharger assist device and an inverter. The turbocharger assist device is mechanically connected to a turbocharger that is operably coupled to an engine, and is configured to generate electric current based on rotation of a rotor of the turbocharger. The inverter is electrically connected to the turbocharger assist device via a bus, and is configured to receive the electric current generated by the turbocharger assist device via the bus and supply the electric current to power a load.Type: GrantFiled: September 13, 2022Date of Patent: January 23, 2024Assignee: TRANSPORTATION IP HOLDINGS, LLCInventor: Ajith Kuttannair Kumar
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Patent number: 11878805Abstract: An aircraft propulsion system comprising a reciprocating liquid cooled engine housed within the fuselage driving twin fuselage mounted ducted-fans is disclosed. The propulsion system may be liquid cooled with a liquid cooled exhaust and at least one turbocharger. The ducted-fans may run fan blade tip speeds of up to 97% Mach driven by a near constant RPM engine through a continuously variable transmission. The propulsion system may be low noise and may meet environmental standards typical in the automotive industry.Type: GrantFiled: February 14, 2022Date of Patent: January 23, 2024Assignee: U.S. Aeronautics, Inc.Inventor: James Paul Hines
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Patent number: 11867281Abstract: A pump stage assembly including at least two pump suction stages and at least one pump pressure stage. The pump suction stages and the pump pressure stage are arranged spaced apart from one another in a pump housing PG and have a common drive shaft. The pump suction stages are formed by a first assembly of intermeshing external gearwheels that lie in a first plane, and the pump pressure stage is formed by a second assembly of intermeshing external gearwheels that lie in a second plane. A first delivery volume flow can be drawn in from a first region of a dry sump by a first pump suction stage, and a second delivery volume flow can be drawn in from a second region of the dry sump by a second pump suction stage. The two delivery volume flows intermix in the pump housing before they reach an oil tank.Type: GrantFiled: June 17, 2020Date of Patent: January 9, 2024Assignee: VITESCO TECHNOLOGIES GMBHInventor: Christian Böhm
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Patent number: 11867178Abstract: An improved screw-spindle pump, particularly for cooling systems, includes a first screw, a second screw and a pump housing, inside which the first screw and the second screw are rotatably housed between the first screw, the second screw and the pump housing, being defined pumping chambers adapted to move, as a consequence of the rotation of the first screw and the second screw, a fluid from a suction area to a delivery area of the pump. The pump housing housing the first screw and the second screw is made in one piece.Type: GrantFiled: July 21, 2022Date of Patent: January 9, 2024Assignee: FLUID-O-TECH S.R.L.Inventors: Pasquale Borriello, Jacopo Varriale, Pierpaolo Lucchesi, Francesco Tirelli, Diego Andreis
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Patent number: 11852062Abstract: The present invention relates to an apparatus for reducing greenhouse gas emission in a vessel and a vessel including the same, which are capable of constantly maintaining a concentration of a greenhouse gas absorbing liquid to prevent a decrease in absorption performance of an absorption tower, and applying a pressurization system to prevent the loss of an absorbent liquid due to the natural evaporation of a high-concentration absorbent liquid. Or which are capable of cooling exhaust gas with fresh water by a heat exchange method, thereby preventing a decrease in concentration of an absorbent liquid, and controlling the concentration of the absorbent liquid to constantly maintain the concentration of the absorbing liquid, thereby preventing a decrease in absorption performance.Type: GrantFiled: December 17, 2020Date of Patent: December 26, 2023Assignee: DAEWOO SHIPBUILDING & MARINE ENGINEERING CO., LTD.Inventor: Byung Tak Nam
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Patent number: 11852100Abstract: A turbocharged compressor system using an Organic Rankine Cycle system to recover waste heat from a compression process. The Organic Rankine Cycle system circulates an organic fluid through an evaporator, where the organic fluid vaporizes and is expanded in a turbine section of a turbocharger to drive a compressor section of the turbocharger. The organic fluid vapor is condensed in a condenser and is pumped to the evaporator once again for recirculation. The compressor section of the turbocharger pre-compresses a working fluid before entering an airend in a compression system. As the working fluid exits the airend, it may be delivered to the evaporator, where the waste heat from the working fluid evaporates the organic fluid flowing in the Organic Rankine Cycle system. The working fluid may also be circulated between intercoolers in multi-stage compressor systems.Type: GrantFiled: January 3, 2023Date of Patent: December 26, 2023Assignee: INGERSOLL-RAND INDUSTRIAL U.S., INC.Inventors: Vineeth Poulose, Sajesh Poolathody, Sujin Abdul Salam