Patents Examined by Binh Q. Tran
  • Patent number: 11668219
    Abstract: A system and method for treating turbine exhaust gas includes an industrial process turbine exhaust gas discharge structure, a catalytic turbine exhaust gas treatment device positioned at least partially within the industrial process turbine exhaust gas discharge structure, a pump, and at least two heat exchangers. The catalytic turbine exhaust gas treatment device is positioned at least partially within the industrial process turbine exhaust gas discharge structure. A first heat exchanger is positioned at least partially within the industrial process turbine exhaust gas discharge section structure and upstream of the catalytic turbine exhaust gas treatment device to remove heat from an the turbine exhaust gas by transferring heat to a working fluid. A second heat exchanger removes heat from the working fluid gained at the first heat exchanger. The pump drives the working fluid between the first and second heat exchanger.
    Type: Grant
    Filed: September 28, 2021
    Date of Patent: June 6, 2023
    Assignee: NOOTER/ERIKSEN, INC.
    Inventors: Glen L. Bostick, Shaun P. Hennessey, Nathan Ross
  • Patent number: 11666886
    Abstract: Disclosed are a hydrocarbon adsorption and desorption complex showing hydrocarbon adsorption and oxidation performance by controlling the cation ratio in zeolite, and a preparation method therefor. The hydrocarbon adsorption and desorption complex controls a cation ratio to exhibit the excellent hydrocarbon adsorption ability and oxidation performance even at a temperature lower than the catalyst activation temperature, and increases hydrothermal stability of the hydrocarbon adsorption and desorption complex through hydrothermal treatment to exhibit the excellent hydrocarbon adsorption and desorption performance even in a situation where water is present at a high temperature.
    Type: Grant
    Filed: November 23, 2021
    Date of Patent: June 6, 2023
    Assignee: Korea University Research and Business Foundation
    Inventors: Jungkyu Choi, Kwan-Young Lee, Jinseong Kim, Eunhee Jang, Hwiyoon Noh
  • Patent number: 11661876
    Abstract: An aftertreatment system for treating an exhaust gas comprises an exhaust conduit, a preheating oxidation catalyst, a primary oxidation catalyst disposed downstream of the preheating oxidation catalyst, and a selective catalytic reduction system disposed in the exhaust conduit downstream of the primary oxidation catalyst. A controller is configured to determine a temperature of an exhaust gas at an inlet of the selective catalytic reduction system. In response to the temperature being below a threshold temperature, the controller generates a hydrocarbon insertion signal configured to cause hydrocarbons to be inserted into or upstream of the preheating oxidation catalyst so as to increase a temperature of the exhaust gas to above the threshold temperature.
    Type: Grant
    Filed: September 3, 2020
    Date of Patent: May 30, 2023
    Assignee: Cummins Emission Solutions, Inc.
    Inventors: Shirish S. Punde, Rayomand Dabhoiwala, James Nicholas Reynolds
  • Patent number: 11661894
    Abstract: An example gas turbine engine includes a propulsor assembly consisting of a fan module and a fan drive turbine module, an epicyclic gear train, a high spool and a low spool. A weight of the propulsor assembly is less than 40% of a total weight of a gas turbine engine. The high spool includes an outer shaft, a high pressure turbine and a high pressure compressor. The low spool includes an inner shaft, a low pressure turbine and a low pressure compressor. The inner shaft drives the propulsor through the gear train to drive the propulsor. A weight of the propulsor is greater than a weight of the low pressure turbine.
    Type: Grant
    Filed: December 20, 2021
    Date of Patent: May 30, 2023
    Assignee: RAYTHEON TECHNOLOGIES CORPORATION
    Inventors: Frederick M. Schwarz, Gabriel L. Suciu
  • Patent number: 11639680
    Abstract: A urea water supply system includes: a first supply valve for supplying urea water; a second supply valve for supplying urea water; a supply passage for connecting a urea water tank and the first and the second supply valves; and an electronic control unit (ECU). The supply passage branches to have a first supply passage extending from a branch point to the first supply valve and a second supply passage extending from the branch point to the second supply valve, and a volume of the first supply passage is greater than a volume of the second supply passage. The ECU opens the first supply valve while keeping the second supply valve closed, for starting filling of the supply passage with urea water, and thereafter determines completion of filling of urea water into the first supply passage.
    Type: Grant
    Filed: January 28, 2022
    Date of Patent: May 2, 2023
    Assignee: DENSO CORPORATION
    Inventors: Tomoaki Kamei, Tomohiro Ueno, Eiji Takemoto, Sumitaka Ikeda
  • Patent number: 11635011
    Abstract: A controller for controlling operation of an aftertreatment system that is configured to treat constituents of an exhaust gas produced by an engine, the aftertreatment system including a selective catalytic reduction (SCR) catalyst, the controller configured to: generate a short-term cumulative degradation estimate of the SCR catalyst corresponding to reversible degradation of the SCR catalyst due to sulfur and/or hydrocarbons based on a SCR catalyst temperature parameter; generate a long-term cumulative degradation estimate of the SCR catalyst corresponding to thermal aging of the SCR catalyst based on the SCR catalyst temperature parameter; generate a combined degradation estimate of the SCR catalyst based on the short-term cumulative degradation estimate and the long-term cumulative degradation estimate; and adjust an amount of reductant and/or an amount of hydrocarbons inserted into the aftertreatment system based on the combined degradation estimate of the SCR catalyst.
    Type: Grant
    Filed: September 9, 2022
    Date of Patent: April 25, 2023
    Assignee: Cummins Emission Solutions Inc.
    Inventors: James C. Clerc, Bradley V. Jones, Marc Alexander Greca, Santosh Kumar Ratan, Rohil Daya, Karthik Venkata Rama Krishna Dadi, Jinqian Gong, Bryon D. Staebler, Todd A. Corbet, Alain Ngoy Tschimwang, Premjee Sasidharan, David C. Hall
  • Patent number: 11629624
    Abstract: A Diesel Emissions Fluid (DEF) Thawing arrangement is provided for use with a vehicle having an engine, an Engine Control Module (ECM), an exhaust system, and an SCR catalytic device. A DEF injection system is connected to the exhaust system and to the ECM. A DEF tank is connected to the DEF injection system. An exhaust pipe branch is connected to the exhaust system. A heat exchanging apparatus is connected to the exhaust pipe branch and is configured to exchange heat from exhaust gas within the exhaust pipe branch to the DEF in the DEF tank. The heat exchanging apparatus may be an exhaust gas to DEF heat exchanger located at least partially within the DEF tank, or may be an exhaust gas to coolant heat exchanger connected to an engine coolant circuit and a coolant to DEF heat exchanger located at least partially within the DEF tank.
    Type: Grant
    Filed: March 10, 2022
    Date of Patent: April 18, 2023
    Assignee: International Engine Intellectual Property Company, LLC
    Inventors: Andrei Makartchouk, Joseph Domenico, Tallis Ingram, Steve Dickerson, Louis Maza, Paul Laurence Berke, Vijayasarathy Subramanian
  • Patent number: 11624309
    Abstract: An exhaust gas treatment system for an internal combustion engine includes an exhaust gas pathway configured to receive exhaust gas from the internal combustion engine, a first treatment element positioned within the exhaust gas pathway, the first treatment element including a selective catalytic reduction (SCR) element, a first injector configured to selectively introduce ammonia gas into the exhaust gas pathway upstream of the first treatment element, a second injector configured to introduce diesel exhaust fluid into the exhaust gas pathway downstream of the first treatment element, and a second treatment element positioned within the exhaust gas pathway downstream of the second injector, the second treatment element including a SCR element.
    Type: Grant
    Filed: June 24, 2021
    Date of Patent: April 11, 2023
    Assignee: Deere & Company
    Inventors: Danan Dou, Eric J. Hruby, Shyan-Cherng Huang
  • Patent number: 11619158
    Abstract: An exhaust device in which an exhaust passage wraps around from a front side of an engine to a lower side of the engine and extends to a rear side is provided. The exhaust device includes a catalyst configured to purify exhaust gas in the exhaust passage and disposed in front of the engine, and a gas sensor disposed on a wall surface of the exhaust passage at an upstream side than the catalyst. The gas sensor is disposed in front of the engine so as to be directed toward the engine.
    Type: Grant
    Filed: December 16, 2021
    Date of Patent: April 4, 2023
    Assignee: SUZUKI MOTOR CORPORATION
    Inventor: Kohei Yamashita
  • Patent number: 11608767
    Abstract: A sensor table mounting system includes an insulating blanket assembly and a senor table. The insulating blanket assembly is configured to surround an external housing surface of an exhaust aftertreatment component housing. The insulating blanket assembly includes an inner blanket surface, an outer blanket surface, and a first restraint. The outer blanket surface is opposite the inner blanket surface. The first restraint includes a first restraint first end that is fixed to the outer blanket surface. The sensor table includes a platform, a first standoff, a second standoff, a first footing, and a second footing. The first footing is offset from the platform by the first standoff and configured to be coupled to the first restraint. The second footing is offset from the platform by the second standoff and configured to be coupled to the first restraint.
    Type: Grant
    Filed: January 7, 2020
    Date of Patent: March 21, 2023
    Assignee: Cummins Emission Solutions Inc.
    Inventors: Brandon Scott Degner, John Ringstad, James Klingbeil
  • Patent number: 11604911
    Abstract: Systems and methods for simulating gas flow dynamics of a real hydrogen fuel cell system using a computer, wherein the real hydrogen fuel cell system includes a gas container volume network having gas container volumes interconnected by gas transport lines. The method includes defining volume element and flow channel classes, defining a plurality of volume instances and a plurality of flow channel instances, for each flow channel instance, creating a first interconnection representation that defines a source container volume and a destination container volume for the flow channel instance, wherein the first interconnection representation mimics a portion of the gas container volume network of the real hydrogen fuel cell system, and simulating, using the first interconnection representation, a thermodynamic state for each of the volume instances, the thermodynamic state representing thermodynamic parameter(s) in each container volume of the gas container volume network of the real hydrogen fuel cell system.
    Type: Grant
    Filed: June 25, 2021
    Date of Patent: March 14, 2023
    Assignee: DSPACE GMBH
    Inventor: Christian Waechter
  • Patent number: 11598241
    Abstract: A reduction device includes a housing defining an input chamber configured to receive exhaust from a power source, an output chamber, an exhaust channel configured to direct the exhaust from the input chamber to the output chamber, and a longitudinal axis. The reduction device also includes a treatment unit disposed in the exhaust channel and along the longitudinal axis. The treatment unit is configured to at least partly remove pollutant species from the exhaust. The reduction device also includes an attenuation component disposed in the housing and radially outward of the treatment unit. The attenuation component is fluidly connected to the exhaust channel, and is configured to attenuate a range of frequencies corresponding to operation of the power source. Additionally, the exhaust channel prohibits exhaust entering the input chamber from exiting the housing without passing through the treatment unit.
    Type: Grant
    Filed: May 10, 2021
    Date of Patent: March 7, 2023
    Assignee: Caterpillar Inc.
    Inventor: Kevin Lloyd Dea
  • Patent number: 11591944
    Abstract: A controller for removing deposits in a vehicle is disclosed. The controller includes at least one processor and a memory storing instructions therein that, when executed by the at least one processor, cause the at least one processor to: determine an amount of deposits accumulated in the vehicle based on an amount of time; determine a combustion target for the vehicle in response to determining that the amount of deposits exceeds a deposit threshold; and modulate a fluid flow of the vehicle based on the determined combustion target.
    Type: Grant
    Filed: March 26, 2021
    Date of Patent: February 28, 2023
    Assignee: Cummins Inc.
    Inventors: John L. Hoehne, Paul Daniel Borisuk, Boopathi Singalandapuram Mahadevan, Joshua A. Lantz, Jeffrey W. Lewis, Snita Navnith Menon
  • Patent number: 11578635
    Abstract: A post-treatment system includes two SCRs, a second SCR is connected to a booster in parallel, and a three-way valve is arranged before the second SCR and the booster, such that whether an exhaust gas flows through the second SCR or the booster is controlled by means of controlling the three-way valve. In the case of a low temperature, the three-way valve is controlled to close a branch of the booster, such that the exhaust gas flows through the second SCR and a first SCR that are connected in series, thereby reducing the energy loss caused by the exhaust gas flowing through the booster, and improving the NOx conversion efficiency in the case of a low temperature. In a case of a high temperature, the three-way valve is controlled to close a by-pass line, such that the exhaust gas flows through the booster and the first SCR.
    Type: Grant
    Filed: April 26, 2019
    Date of Patent: February 14, 2023
    Assignee: Weichai Power Co., Ltd.
    Inventors: Yu Zhang, Xiaohua Wang, Yibao Wang, Wang Yao, Jinlong Fu
  • Patent number: 11578636
    Abstract: Various embodiments include a method of ascertaining the oxygen load of a catalytic converter disposed in an exhaust tract of an internal combustion engine with an exhaust gas sensor is disposed downstream of the catalytic converter comprising: generating a signal using the exhaust gas sensor indicating a proportion of nitrogen oxide and/or ammonia in the exhaust gas; and ascertaining the oxygen load of the catalytic converter at least partly on the basis of the signal from the exhaust gas sensor.
    Type: Grant
    Filed: April 16, 2020
    Date of Patent: February 14, 2023
    Assignee: VITESCO TECHNOLOGIES GMBH
    Inventors: Paul Rodatz, Gerhard Haft, Hong Zhang
  • Patent number: 11566633
    Abstract: A ceiling fan or blade thereof can include a fan motor for rotating the blade. The blade can include an airfoil body having an outer surface extending between a leading edge and a trailing edge, and a root and a tip. The blade can be separated into three distinct cross sections including a first cross section as a lifting cross section, a second cross section as a flat cross section, and a third cross section as a transition section between the first and second cross sections.
    Type: Grant
    Filed: August 12, 2021
    Date of Patent: January 31, 2023
    Assignee: Hunter Fan Company
    Inventors: Bobby Neal Norwood, Charles William Botkin
  • Patent number: 11567034
    Abstract: A first gas sensor having a first sensor element includes a first protective cover that protects the first sensor element, and a second gas sensor having a second sensor element includes a second protective cover that protects the second sensor element. The first protective cover is coated with an oxidation catalyst for one target component from among a plurality of target components, and the second protective cover is coated with an inert catalyst for the one target component.
    Type: Grant
    Filed: March 18, 2021
    Date of Patent: January 31, 2023
    Assignee: NGK INSULATORS, LTD.
    Inventors: Daichi Ichikawa, Yuichiro Kondo, Nobuhiko Mori
  • Patent number: 11566555
    Abstract: Systems, methods, and computer readable storage media for controlling oxidation of a particulate filter (PF) are closed. The oxidation of the PF may be controlled using a PF model. The PF model may be utilized to simulate operations of the PF based on various input data and/or derived data to determine an optimum time for initiating an oxidation event at the PF, and an oxidation event may be initiated at the PF based on the simulating.
    Type: Grant
    Filed: August 30, 2019
    Date of Patent: January 31, 2023
    Assignee: University of Kansas
    Inventors: Christopher Depcik, Matthew Cole
  • Patent number: 11555435
    Abstract: The invention relates to a leakage treatment member (50) and an exhaust aftertreatment unit (40) configured to be sealingly arranged in a fluid passage (30) of an exhaust aftertreatment system for treating exhaust from an internal combustion engine, said exhaust aftertreatment unit (40) comprising an exhaust aftertreatment element (42) confined by an outer wall (44) of said exhaust aftertreatment unit, said leakage treatment member being configured to be arranged between:—an inner perimeter (32) of the fluid passage of the exhaust aftertreatment system, and—the outer wall of the exhaust aftertreatment unit, the leakage treatment member comprising an exhaust aftertreatment component for aftertreatment of any leakage of exhaust gases past said aftertreatment unit in said fluid passage.
    Type: Grant
    Filed: October 8, 2019
    Date of Patent: January 17, 2023
    Assignee: VOLVO TRUCK CORPORATION
    Inventor: Gert-Ove Wahlström
  • Patent number: 11555430
    Abstract: Devices and methods for reducing emissions, e.g., hydrocarbons, NOx, carbon dioxide (CO2), and carbon monoxide (CO) from an internal combustion engine burning a hydrocarbon fuel. The devices include a mixture of tourmaline, quartz, and a holographic film within a non-metallic housing. The device containing the mixture and the holographic film is then charged. After charging the device, treating hydrocarbon fuel is taught by exposing the hydrocarbon fuel to the charged device before combustion of the hydrocarbon fuel in an internal combustion engine.
    Type: Grant
    Filed: March 15, 2020
    Date of Patent: January 17, 2023
    Assignee: Emissions Science Corporation
    Inventors: Mark Wasemiller, Don Paris, Scott Keller