Patents Examined by Matthew T Largi
  • Patent number: 10927743
    Abstract: A clamping assembly configured for an exhaust system of a vehicle may include a gasket engaged to be prevented from deviating using a method in which a pin is inserted into and engaged with a pin hole at an inlet pipe flange of a catalytic converter, wherein an outlet pipe flange of a turbocharger and an inlet pipe flange of the catalytic converter are clamped by a clamp by interposing the gasket between the outlet pipe flange of the turbocharger and the inlet pipe flange of the catalytic converter.
    Type: Grant
    Filed: June 25, 2019
    Date of Patent: February 23, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventor: Chun Soon Jang
  • Patent number: 10920633
    Abstract: A maintenance pipe (30) used during maintenance of an exhaust purification device equipped with: a set of an oxidation catalyst (22) and a filter (23) for purifying exhaust gas from an engine (10); an upstream connecting pipe (16A) and a downstream connecting pipe (16B) which are mounted in a demountable way and guide the exhaust gas from the engine (10) to the oxidation catalyst (22); and an exhaust pipe injection device (24) and injectors (12) for increasing a concentration of unburned fuel contained in the exhaust gas. The maintenance pipe includes a flanged steel pipe (31) mounted to be replaceable with the downstream connecting pipe (16B), and a maintenance catalyst (32) that is housed in the flanged steel pipe (31), generates heat caused by oxidizing the unburned fuel contained in the exhaust gas from the engine (10), and heats the exhaust to discharge the exhaust to an exhaust downstream side.
    Type: Grant
    Filed: February 29, 2016
    Date of Patent: February 16, 2021
    Assignee: ISUZU MOTORS LIMITED
    Inventors: Yoshihisa Ueda, Yuuta Kageyama, Katsushi Osada
  • Patent number: 10914221
    Abstract: A method for monitoring pollutant emissions during the operation of a combustion engine and/or an exhaust-aftertreatment device in a motor vehicle includes determining one or more pollutant-limit values for one or more pollutant categories using an emission limit-value model and as a function of one or more operating-state variables of the motor vehicle; ascertaining a pollutant-concentration variable for each pollutant category using sensors; and detecting an error in the form of an exceeding of the one or the plurality of pollutant-limit vales as a function of the pollutant-concentration variable for each pollutant category.
    Type: Grant
    Filed: January 3, 2019
    Date of Patent: February 9, 2021
    Assignee: Robert Bosch GmbH
    Inventors: Oliver Hasslacher, Ulrich Gerstung
  • Patent number: 10907531
    Abstract: A rotary engine that starts and operates on compression-ignition of a heavy fuel without a secondary ignition source. The rotary engine includes a rotor housing that forms an epitrochoidal-shaped chamber having linear side portions extending between rounded end portions. A three-flanked rotor is disposed in the chamber to rotate and operate in a manner similar to that of a common Wankel-style rotary engine. The rotor and chamber are configured to provide a compression ratio sufficient to produce compression-ignition of a heavy fuel. The rotor includes apex seal and side seal mounting blocks formed from hardened materials and that are simply removable from the rotor for replacing apex and side seals. The apex seals may include multiple non-parallel seal members at each apex and the apex seals and the side seals may overlap or intersect a corner seal to increase sealing under high compression loads produced by the rotor/chamber configuration.
    Type: Grant
    Filed: July 24, 2018
    Date of Patent: February 2, 2021
    Assignee: Rotary Research Group LLC
    Inventors: P. Tyson Garvin, Timothy C. Stamps
  • Patent number: 10907522
    Abstract: A mixer includes a baffle having a baffle inlet receiving exhaust gas from an upstream exhaust component and a baffle outlet directing exhaust gas to a downstream exhaust component. A cover provides a chamber between an internal surface of the cover and the baffle. An internal box is positioned within the chamber to cover the baffle outlet and includes a bottom wall with a peripheral wall extending about at least a portion of an outer periphery of the bottom wall. At least one deflector wall is positioned within the internal box to provide a wall surface that is spaced from the peripheral wall to define an internal flow path that diverts exhaust gas at least partially around the baffle outlet before exiting the baffle outlet. An opening is located in the peripheral wall to receive exhaust gas exiting the inlet and to direct exhaust gas into the internal flow path.
    Type: Grant
    Filed: August 3, 2018
    Date of Patent: February 2, 2021
    Inventors: Laurent Poinsot, Laurent Cuny
  • Patent number: 10907509
    Abstract: Provided is a waste heat recovery power generation system, including: a compressor configured to compress a working fluid; a heat exchanger configured to recover waste heat from waste heat gas supplied from a waste heat source, the recovered waste heat heating the working fluid; a turbine configured to be driven by the working fluid heated by the recovered waste heat; and a recuperator configured to exchange heat between an output fluid of the turbine and an output fluid of the compressor to cool the output fluid of the turbine in which the output fluid of the compressor is branched into a first output fluid and a second output fluid of the compressor.
    Type: Grant
    Filed: June 9, 2016
    Date of Patent: February 2, 2021
    Assignee: Doosan Heavy Industries Construction Co., Ltd
    Inventors: Jeong Ho Hwang, Eung Chan Lee, Seung Gyu Kang, Sang Sin Park, Cheol Rae Jeong
  • Patent number: 10900428
    Abstract: A controller for an internal combustion engine includes a processing circuit that performs a dither control process on condition that a temperature increase request of a catalyst is made. The processing circuit operates fuel injection valves so that during the dither control process, one or more cylinders are lean combustion cylinders in a first period and another one or more cylinders are rich combustion cylinders and so that the average value of an exhaust gas-fuel ratio is a target air-fuel ratio in a second period including the first period. The dither control process is restricted in a manner that, on condition that the rich process is performed, the degree of richening of the richest exhaust gas-fuel ratio of exhaust gas-fuel ratios in the cylinders is reduced.
    Type: Grant
    Filed: August 8, 2018
    Date of Patent: January 26, 2021
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Yuki Nose, Keiichi Myojo, Yoshiyuki Shogenji, Eiji Ikuta
  • Patent number: 10900403
    Abstract: The NOx catalyst is irradiated with an electromagnetic wave, a resonance frequency and a ratio of a reception power to an oscillation power at the time of the irradiation are detected, and an upper limit value of a change amount of the resonance frequency or an upper limit value of a change amount of the ratio at which the NOx catalyst is diagnosed to be abnormal is determined from a change amount of the resonance frequency and a change amount of the ratio until water is adsorbed on all acid sites included in the NOx catalyst, and a change amount of the resonance frequency and a change amount of the ratio until ammonia is adsorbed on all acid sites included in the NOx catalyst, when it is supposed that the NOx catalyst is in a state of being on the borderline between normal and abnormal.
    Type: Grant
    Filed: March 15, 2019
    Date of Patent: January 26, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tetsuya Sakuma, Keishi Takada, Hiromasa Nishioka
  • Patent number: 10894230
    Abstract: The CO2 separation system performs, when the internal combustion engine is operating and the vehicle is travelling, a first mode wherein exhaust gas generated by the internal combustion engine is introduced to a CO2 supply side of a first CO2 separation device via a first CO2 supply side introduction flow path, and air from outside the vehicle is introduced to a CO2 permeation side of the first CO2 separation device via a first CO2 permeation side introduction flow path using travelling wind, whereby CO2 in the exhaust gas selectively permeates from the CO2 supply side to the CO2 permeation side of the first CO2 separation device through a CO2 permeable membrane of the first CO2 separation device using a difference in CO2 partial pressure between the CO2 supply side and the CO2 permeation side of the first CO2 separation device as a driving force.
    Type: Grant
    Filed: April 22, 2019
    Date of Patent: January 19, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Kouseki Sugiyama
  • Patent number: 10894237
    Abstract: A nozzle including an interior cavity, a structure disposed within the interior cavity, a first channel fluidly connected to the interior cavity, one or more second channels fluidly connected to the interior cavity, and one or more outlets coupled to the interior cavity. The structure includes a bottom impinging surface that is at least partially concave, one or more legs that support the bottom impinging surface, and a top surface located opposite the bottom impinging surface.
    Type: Grant
    Filed: November 15, 2018
    Date of Patent: January 19, 2021
    Assignee: Caterpillar Inc.
    Inventors: Satya Ramakrishna Manda Venkata Naga, Kevin L. Martin, Paul Arthur Zwart, Andrew M. Denis
  • Patent number: 10888885
    Abstract: A nozzle including an exterior surface extending between a first end and a second end of the nozzle. The exterior surface including spray outlets disposed at the second end. An interior cavity is disposed interior to the exterior surface. A first channel and a second channel fluidly connect to the interior cavity. One or more third channels fluidly connect between the interior cavity and an individual spray outlet of the spray outlets. The one or more third channels rotate about a longitudinal axis of the nozzle and angle in a direction away from the longitudinal axis of the nozzle.
    Type: Grant
    Filed: November 15, 2018
    Date of Patent: January 12, 2021
    Assignee: Caterpillar Inc.
    Inventors: Satya Ramakrishna Manda Venkata Naga, Kevin L. Martin, Paul Arthur Zwart, Andrew M. Denis
  • Patent number: 10890093
    Abstract: Exhaust gas treatment system (100) for a motor vehicle, comprising a first catalytic converter (101-1) for selective catalytic reduction; a second catalytic converter (101-2) for selective catalytic reduction; a first nitrogen oxide sensor (103-1) upstream of the first catalytic converter (101-1) for detecting a first nitrogen oxide value (NOx-1); a second nitrogen oxide sensor (103-2) between the first and the second catalytic converter (101-1; 101-2) for detecting a second nitrogen oxide value (NOx-2); a third nitrogen oxide sensor (103-3) downstream of the second catalytic converter (101-2) for detecting a third nitrogen oxide value (NOx-3); an electronic evaluation device (105) for calculating a first efficiency of the first catalytic converter (101-1) on the basis of the first and the second nitrogen oxide value (NOx-1; NOx-2), a second efficiency of the second catalytic converter (101-2) on the basis of the second and the third nitrogen oxide value (NOx-2; NOx-3) and a total efficiency of the exhaust ga
    Type: Grant
    Filed: October 23, 2018
    Date of Patent: January 12, 2021
    Assignee: FEV Europe GmbH
    Inventors: Arun Palaniappan Muthukaruppan, Henning Gero Petry
  • Patent number: 10876452
    Abstract: A metering device for metering water or an aqueous solution, such as an injector for metering a reducing agent liquid into an exhaust gas stream of a combustion system or an injector for metering water or aqueous solution into a combustion chamber or into an intake manifold of an internal combustion engine. The metering device has an inlet and an outlet for the water or aqueous solution and a shut-off device which is arranged between the inlet and the outlet. At least one electrically operated heating element is arranged in the region of the shut-off device so as to heat and avoid freezing of the liquid.
    Type: Grant
    Filed: December 31, 2018
    Date of Patent: December 29, 2020
    Assignee: Continental Automotive GmbH
    Inventors: Gerd Roesel, Wendelin Kluegl
  • Patent number: 10871100
    Abstract: A thermal overload of an internal combustion engine and of cooling system of a combustion machine due to a raising of the temperature of the exhaust gas flowing through an exhaust gas line of the combustion machine, which is provided as a measure to desulfurize a NOx storage catalytic converter and/or to regenerate a particulate filter, is prevented in that before and/or during this measure, the cooling output for the coolant flowing through the cooling system is systematically increased in order to achieve a lowering of the coolant temperature to a value range that lies below what would normally—that is to say, without the simultaneous desulfurization of the NOx storage catalytic converter and/or without the regeneration of the particulate filter—have been provided for the operation of the combustion machine in a corresponding operating state of the internal combustion engine.
    Type: Grant
    Filed: October 10, 2018
    Date of Patent: December 22, 2020
    Assignee: VOLKSWAGEN AKTIENGESELLSCHAFT
    Inventors: Marco Kiel, Holger Loof
  • Patent number: 10871094
    Abstract: An object of the disclosure is to prevent the sensing accuracy of an exhaust gas sensor from being deteriorated by the effect of electromagnetic waves in an exhaust gas purification system for an internal combustion engine that is configured to apply electromagnetic waves to the exhaust gas purification device provided in an exhaust passage of the internal combustion engine. The disclosure is applied to an exhaust gas purification system for an internal combustion engine including an exhaust gas sensor located within the range of radiation of electromagnetic waves from a radiating device that radiates electromagnetic waves of a specific frequency to an exhaust gas purification device. The system suspends the radiation of electromagnetic waves from the radiating device during a sampling period in which sampling of the output value of the exhaust gas sensor is performed, even when a specific condition for performing the radiation is met.
    Type: Grant
    Filed: March 15, 2019
    Date of Patent: December 22, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kenichi Kohashi, Hiroshi Otsuki, Kazuki Kikuchi, Shinji Ikeda
  • Patent number: 10858090
    Abstract: A composite assembly has an outer spar component having an outer spar component inner profile, an inner spar component having an inner spar component outer profile substantially complementary to the outer spar component inner profile, and an adhesive disposed between the outer spar component and the inner spar component.
    Type: Grant
    Filed: May 26, 2020
    Date of Patent: December 8, 2020
    Assignee: BELL TEXTRON INC.
    Inventors: Ronald J. Measom, Mitchell Elvin Rains
  • Patent number: 10858989
    Abstract: An exhaust manifold for an internal combustion piston engine with a row of at least two cylinders inclined from the vertical. The exhaust manifold has plural exhaust stack assemblies and a manifold plenum with an outlet. Each of the plural exhaust stack assemblies comprises a leader pipe and an exhaust connector, with a first end of each leader pipe being joined to a first end of the exhaust connector of the exhaust stack assembly, and a second end of each exhaust connector being joined to the manifold plenum. Each leader pipe is joined to a manifold flange that is adapted for joining to the internal combustion engine to receive exhaust gases from the cylinders of the engine. Each leader pipe is joined in a vertical plane to the manifold flange at a first angle so that the plural exhaust stack assemblies are approximately horizontally oriented when joined to the internal combustion engine, and each leader pipe is joined in a horizontal plane to the manifold flange at a second angle inclined toward the outlet.
    Type: Grant
    Filed: October 24, 2018
    Date of Patent: December 8, 2020
    Inventors: Paolo Tiramani, Kyle Denman
  • Patent number: 10837385
    Abstract: A method of raising exhaust gas temperatures of a two-cycle uniflow scavenged engine at lower loads. At lower loads, the exhaust valves are activated with a frequency that is less frequent than every engine cycle. This retains exhaust within the cylinder for one or more cycles, and when the exhaust valves are again activated, the exhaust temperature will be elevated. For engines having a means for controlling intake manifold pressure, such as a compressor having variable speed or a means for bleeding off compressor output, intake manifold pressure can be reduced at low loads, which also has the effect of elevating exhaust temperatures.
    Type: Grant
    Filed: May 21, 2018
    Date of Patent: November 17, 2020
    Assignee: Yelir, Inc.
    Inventors: Michael B. Riley, John C. Hedrick, Steven G. Fritz
  • Patent number: 10830117
    Abstract: An exhaust aftertreatment assembly and method of manufacturing and operating an exhaust aftertreatment assembly. An exhaust aftertreatment assembly includes an aftertreatment housing and an inlet conduit coupled to the aftertreatment housing at an inlet port so as to transfer exhaust gas into the aftertreatment housing. An inlet chamber is positioned in the aftertreatment housing. The inlet chamber is fluidly coupled to the inlet port of the aftertreatment housing to receive the exhaust gas from the inlet conduit.
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: November 10, 2020
    Assignee: Cummins Emission Solutions Inc.
    Inventors: Randolph G. Zoran, David M. Sarcona, Ryan M. Johnson, Enoch Nanduru
  • Patent number: 10830114
    Abstract: An object of the disclosure is to prevent the sensing accuracy of an exhaust gas sensor from being deteriorated by the effect of electromagnetic waves in an exhaust gas purification system for an internal combustion engine that is configured to apply electromagnetic waves to the exhaust gas purification device provided in an exhaust passage of the internal combustion engine. The disclosure is applied to an exhaust gas purification system for an internal combustion engine including an exhaust gas sensor located within the range of radiation of electromagnetic waves from a radiating device that radiates electromagnetic waves of a specific frequency to an exhaust gas purification device. The system suspends the radiation of electromagnetic waves from the radiating device during a sampling period in which sampling of the output value of the exhaust gas sensor is performed, even when a specific condition for performing the radiation is met.
    Type: Grant
    Filed: March 15, 2019
    Date of Patent: November 10, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kenichi Kohashi, Hiroshi Otsuki, Kazuki Kikuchi, Shinji Ikeda