Exhaust Gas Used With The Combustible Mixture (e.g., Emission Control Exhaust Gas Recirculation (egr) Valve) Patents (Class 123/568.11)
  • Patent number: 10738723
    Abstract: An internal-combustion engine includes: a supercharger; an EGR passage connecting between an exhaust passage and an intake passage downstream of the supercharger; a control device controlling EGR; and an intake pressure sensor that detects a supercharge pressure being a gas pressure in the intake passage downstream of the supercharger. A comparison-target pressure is a higher one of a target supercharge pressure and an actual supercharge pressure detected by the intake pressure sensor. The control device compares the comparison-target pressure with an exhaust gas pressure in the exhaust passage. When the comparison-target pressure is higher than the exhaust gas pressure, the EGR is prohibited and an EGR valve is fully closed. When the comparison-target pressure is lower than the exhaust gas pressure, the EGR is permitted.
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: August 11, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Tomohiro Nozaki
  • Patent number: 10724452
    Abstract: A cylinder head defines an EGR crossover tube integrally formed in the cylinder head. The EGR crossover tube includes a first end fluidly coupled to an exhaust port of an engine. A second end is fluidly coupled to an intake port of the engine. A Venturi tube configuration is positioned between the first and second ends. A first sensor port extends through the cylinder head to the EGR crossover tube. The first sensor port is positioned at a restriction of the Venturi tube configuration. A second sensor port extends through the cylinder head to the EGR crossover tube. The second sensor port is positioned proximate the first end. A differential pressure sensor includes a first pressure sensor positioned in the first sensor port and a second pressure sensor positioned in the second sensor port.
    Type: Grant
    Filed: September 19, 2017
    Date of Patent: July 28, 2020
    Assignee: Cummins Inc.
    Inventors: James A. Dods, John Jerl Purcell, John Peter Jones, John R. Anderson, Paul Andrew Leggott, Graham Dowson
  • Patent number: 10690072
    Abstract: Methods and systems are provided for regulating exhaust flow through an exhaust system of an engine. In one example, a method may include directing exhaust from downstream of a catalytic converter to a compressor storage tank in response to an engine air-fuel ratio deviating from stoichiometry. The stored exhaust may be released from the compressor storage tank to recirculate through the catalytic converter to atmosphere after adjusting an air-fuel ratio of the exhaust in the storage tank and when the catalytic converter is at a target operating temperature.
    Type: Grant
    Filed: October 19, 2016
    Date of Patent: June 23, 2020
    Assignee: Ford Global Technologies, LLC
    Inventors: Hassene Jammoussi, Imad Hassan Makki
  • Patent number: 10662844
    Abstract: The present application relates to a system and method to determine a total flow rate Qtot of a washing liquid at a washing liquid inlet of an exhaust gas cleaning unit installed in a marine vessel, the exhaust gas cleaning unit comprising a scrubber pipe and two or more spraying nozzles mounted at different height levels in the scrubber pipe, being adapted to spray washing liquid into the exhaust gas present in the scrubber pipe and being operated by a valve adapted to open and to close the respective spraying nozzle. The system comprises at least one pressure sensor arranged to measure the pressure P outside the scrubber pipe before the valve operating the uppermost active spraying nozzle, and a process controller calculating the total flow rate Qtot of the washing liquid at the exhaust gas inlet of the exhaust gas cleaning unit by summing up the flow rate Qind of the washing liquid flowing through each of the individual active spraying nozzles.
    Type: Grant
    Filed: October 27, 2017
    Date of Patent: May 26, 2020
    Assignee: YARA MARINE TECHNOLOGIES AS
    Inventors: Shyam Bahadur Thapa, Christoffer Ahlström
  • Patent number: 10619587
    Abstract: Provided is a control device for an internal combustion engine equipped with at least one cylinder, an EGR device, and an actuator that is used for control of an engine control parameter that affects the combustion stability. The control device is configured to: perform, if a condensed water occurrence condition is met, a particle size estimation processing that estimates the particle size of the condensed water that flows into the at least one cylinder from the intake channel; and perform, if the condensed water occurrence condition is met, a correction processing that corrects the engine control parameter so as to improve the combustion stability. In the correction processing, the control device more increases a correction amount of the engine control parameter when the particle size estimated by the particle size estimation processing is greater.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: April 14, 2020
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Hiroyuki Haga, Kei Takachiho
  • Patent number: 10533504
    Abstract: A method of controlling an engine system may include: method of controlling an engine system including a continuous variable valve duration (CVVD) apparatus, the method including: detecting data for controlling the engine system; determining whether a speed of an engine is less than a predetermined speed; determining whether a position value of an accelerator pedal is greater than a predetermined position value when the rotation speed of the engine is less than the predetermined speed; operating the CVVD apparatus to increase a valve overlap when the position value of the accelerator pedal is greater than the predetermined position value; and performing a knock control after the valve overlap is increased.
    Type: Grant
    Filed: December 7, 2017
    Date of Patent: January 14, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventor: Seungbum Kim
  • Patent number: 10480435
    Abstract: A method of operating a dedicated-EGR engine includes providing a rich air-fuel mixture to a dedicated cylinder; combusting the rich air-fuel mixture in the dedicated cylinder; modeling the combustion of the rich air-fuel mixture in the dedicated cylinder; estimating the composition of the combustion products in the dedicated cylinder based on interpolation of chemical reaction models of stoichiometric and rich combustion. The method further includes mixing the combustion products from the dedicated cylinder with air to produce an intake mixture; estimating a mass fraction of reformate and a mass fraction of burned gas in the intake mixture; providing the intake mixture to the intake ports of all of the cylinders of the dedicated-EGR engine; combusting an air-fuel mixture in a non-dedicated cylinder of the engine; and controlling an engine control parameter based on the estimated mass fractions of reformate and burned gas in the intake mixture.
    Type: Grant
    Filed: March 21, 2018
    Date of Patent: November 19, 2019
    Assignee: GM Global Technology Operations LLC
    Inventors: Jun-mo Kang, Gregory P. Matthews, Martino A. Casetti
  • Patent number: 10450974
    Abstract: An internal combustion engine includes an intake passage of the internal combustion engine, an exhaust passage of the internal combustion engine, an EGR passage connecting the intake passage and the exhaust passage. The internal combustion engine further includes a throttle valve provided downstream of a connected part to the EGR passage in the intake passage, and configured to control a quantity of intake air flowing into the internal combustion engine, and an intake throttle valve provided upstream of the connected part to the EGR passage in the intake passage. A control device controls the internal combustion engine, in which device an opening degree of the intake throttle valve is determined on the basis of an intake air quantity.
    Type: Grant
    Filed: September 18, 2015
    Date of Patent: October 22, 2019
    Assignee: NISSAN MOTOR CO., LTD.
    Inventor: Takayuki Hamamoto
  • Patent number: 10415513
    Abstract: An emissions control system for a gasoline engine having an exhaust gas conduit which can be connected to an exhaust manifold of the gasoline engine, having an inlet conduit which can be connected to an inlet manifold of the gasoline engine and having a turbine arranged in the exhaust gas conduit.
    Type: Grant
    Filed: May 26, 2015
    Date of Patent: September 17, 2019
    Assignee: TENNECO GMBH
    Inventor: Michael Fischer
  • Patent number: 10385764
    Abstract: A turbocharger includes a waste gate valve, a compressor with a turbine, a turbine housing which houses the turbine, a bypass channel with an opening cross-section, a bypass channel portion formed in the turbine housing, an actuator housing with a separate coolant channel, an electric motor arranged in the actuator housing, a transmission with an output shaft, the transmission being arranged in the actuator housing and being provided as a worm wheel gear unit, and a control body coupled to the output shaft of the transmission. The bypass channel bypasses the turbine. The actuator housing is removably secured to the turbine housing. The control body controls the opening cross-section of the bypass channel.
    Type: Grant
    Filed: February 19, 2015
    Date of Patent: August 20, 2019
    Assignee: PIERBURG GMBH
    Inventors: Martin Nowak, Michael-Thomas Benra, Sven Nigrin, Stephan Zielberg
  • Patent number: 10352277
    Abstract: In an intake apparatus of an internal combustion engine, an EGR gas inlet port of each of plural EGR gas distribution pipes is provided at a position at which a volume of an intake port from a surge tank to the EGR gas inlet port is equal to or greater than a volume of an EGR gas introduced to an intake pipe from each of the EGR gas distribution pipes during one cycle of the internal combustion engine and at a position towards the surge tank relative to a center of the intake port in a flow direction thereof.
    Type: Grant
    Filed: November 5, 2015
    Date of Patent: July 16, 2019
    Assignee: AISIN SEIKI KABUSHIKI KAISHA
    Inventor: Atsushi Ito
  • Patent number: 10240520
    Abstract: A split-cycle engine includes a compression cylinder having a first volume for a first working fluid and a second volume for a second working fluid, the first volume and second volume being separated by the compression piston, an expansion cylinder having a first volume for the first working fluid and a second volume for the second working fluid, the first volume and second volume being separated by the expansion piston, and a fluid coupling between the second volume of the compression cylinder and the second volume of the expansion cylinder, wherein the two second volumes and the fluid coupling provide a closed volume for the second working fluid, wherein the fluid coupling includes a regenerator arranged such that the two second volumes are thermally decoupled.
    Type: Grant
    Filed: January 25, 2016
    Date of Patent: March 26, 2019
    Assignee: Ricardo UK Limited
    Inventor: Neville Jackson
  • Patent number: 10227938
    Abstract: A method for controlling a supercharger of a vehicle includes: determining, at a first determination step, whether or not an engine operates in a cylinder deactivation (CDA) mode; calculating, at a second determination step, a difference value between a target boost pressure of a turbocharger and a current boost pressure of intake air boosted by the turbocharger, and determining whether or not the difference value is equal to or greater than a reference difference value; determining, at a third determination step, based on a current operating condition of the engine whether or not the supercharger is allowed to operate; determining, at a fourth determination step, a target rpm of the supercharger, and determining whether or not the target rpm is equal to or greater than a reference rpm; and operating the supercharger at an operating step.
    Type: Grant
    Filed: November 4, 2016
    Date of Patent: March 12, 2019
    Assignee: HYUNDAI MOTOR COMPANY
    Inventors: Seung Eun Yu, Hyo Sang Cho
  • Patent number: 10190543
    Abstract: A method of providing internal EGR to an engine having at least one dedicated EGR cylinder. The main (non dedicated) cylinders are operated with internal EGR, in addition to external EGR from the dedicated EGR cylinder. The dedicated EGR cylinder has separate valve control so that it need not be operated with internal EGR, thereby allowing it to be operated at a richer air-to-fuel ratio.
    Type: Grant
    Filed: November 15, 2017
    Date of Patent: January 29, 2019
    Assignee: SOUTHWEST RESEARCH INSTITUTE
    Inventor: Cary A Henry
  • Patent number: 10190474
    Abstract: Methods and systems are provided for an exhaust bypass valve and a heat exchanger upstream of a three-way valve. In one example, a method may include flowing exhaust gas through one or more of an exhaust passage, bypass passage, recirculating passage, and EGR passage based on positions of a three-way valve and a bypass valve.
    Type: Grant
    Filed: June 10, 2016
    Date of Patent: January 29, 2019
    Assignee: Ford Global Technologies, LLC
    Inventor: Xiaogang Zhang
  • Patent number: 10161366
    Abstract: An air intake apparatus includes: an air intake apparatus body including first, second, third and fourth air intake passages respectively provided corresponding to first, second, third and fourth cylinders of a multi-cylinder engine which has one or a plurality of groups of four consecutive cylinders of the first, second, third and fourth cylinders, the multi-cylinder engine having an air intake sequence of the first cylinder, the third cylinder, the fourth cylinder, and the second cylinder; and a distribution passage through which external gas is distributed to the first, second, third and fourth air intake passages. The distribution passage includes an upstream distribution passage, first and second midstream distribution passages branched off from the upstream distribution passage, and first and second downstream distribution passages branched off from the first midstream distribution passage, and third and fourth downstream distribution passages branched off from the second midstream distribution passage.
    Type: Grant
    Filed: September 13, 2017
    Date of Patent: December 25, 2018
    Assignee: AISIN SEIKI KABUSHIKI KAISHA
    Inventor: Atsushi Ito
  • Patent number: 10041418
    Abstract: A flap device for an internal combustion engine includes a flap body comprising at least one end position, a shaft which has the flap body arranged thereon, a housing which has a flow duct formed therein, an actuator which rotates the shaft in the flow duct, a lever which includes a lever surface, the lever being attached to the shaft outside of the flow duct, and an abutment which has the lever bear thereon in the at least one end position of the flap body. The flow duct includes a throughflow cross section which is regulated by a rotation of the shaft. The lever surface which faces toward the abutment includes an abutment region which is formed so as to be inclined in a direction of the abutment with respect to a radially outwardly extending straight line.
    Type: Grant
    Filed: January 20, 2015
    Date of Patent: August 7, 2018
    Assignee: PIERBURG GMBH
    Inventors: Lars Baumeister, Dirk Kamarys
  • Patent number: 10024275
    Abstract: Methods and systems are provided for condensate management in an EGR cooler of an engine system. In one example, an exhaust gas recirculation (EGR) system with an EGR cooler is coupled to an exhaust system and to an intake system of an engine. The EGR cooler includes an inlet coupled to the exhaust system, a first outlet coupled to the exhaust system, and a second outlet coupled to the intake system, the second outlet positioned vertically higher than the first outlet.
    Type: Grant
    Filed: January 12, 2016
    Date of Patent: July 17, 2018
    Assignee: Ford Global Technologies LLC
    Inventors: Eric David Bramson, Steven Michael Cyr
  • Patent number: 10006414
    Abstract: In accordance with the present invention, condensed water generated upstream of a compressor can be caused to flow into a groove 44, and temporarily accumulated therein. The condensed water flowing into the groove 44 moves to a lower portion in a gravity direction (that is, to an ABV 38-side) in the groove 44. When the ABV 38 is opened, the condensed water accumulated in the groove 44 is blown away to a center portion of an inlet 46 on a flow of a return gas, and, together with an intake gas flowing through the center portion, the condensed water flows into a compressor 20 from a center portion 42b of a front end surface of an impeller 42. Since the center portion 42b has a lower circumferential speed than that of an outer peripheral portion 42a, occurrence of erosion by contact with the condensed water can be suppressed as compared to the outer peripheral portion 42a.
    Type: Grant
    Filed: June 26, 2013
    Date of Patent: June 26, 2018
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Yoshiki Ariizumi, Yusuke Aoyagi
  • Patent number: 9926839
    Abstract: An internal combustion engine includes an internal combustion engine main body, an intake passage, an exhaust passage, a supercharger, an intake circulation passage, an exhaust circulation passage, an intake circulation valve, an exhaust circulation valve and a controller. The supercharger is provided on the intake passage and the exhaust passage. The supercharger supplies compressed intake air to the internal combustion engine main body. The intake circulation passage connects the sections of the intake passage that are upstream and downstream of the supercharger. The exhaust circulation passage connects sections of the exhaust passage that are upstream and downstream of the supercharger. The intake circulation valve is provided in the intake circulation passage. The exhaust circulation valve is provided in the exhaust circulation passage. The controller is programmed to close the exhaust circulation valve in accordance with an opening degree of the intake circulation valve.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: March 27, 2018
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Masahiro Arai, Kenji Suzuki, Mitsuhiko Kubota
  • Patent number: 9903262
    Abstract: A neat-fuel direct-injected compression ignition engine having a thermal barrier coated combustion chamber, an injection port injects fuel that satisfies a stoichiometric condition with respect to the intake air, a mechanical exhaust regenerator transfers energy from exhaust gas to intake compression stages, an exhaust O2 sensor inputs to a feedback control to deliver quantified fuel, a variable valve actuation (VVA) controls valve positions, an exhaust gas temperature sensor controls exhaust feedback by closing the exhaust valve early according to the VVA, or recirculated to the chamber with an exhaust-gas-recirculation (EGR), heat exchanger, and flow path connecting an air intake, a load command input, and a computer operates the EGR from sensors to input exhaust gas according exhaust temperature signals and changes VVA timing, the load control is by chamber exhaust gas, the computer operates a fuel injector to deliver fuel independent of exhaust gas by the O2 signals.
    Type: Grant
    Filed: April 6, 2015
    Date of Patent: February 27, 2018
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Christopher F. Edwards, Bernard H. Johnson, IV, Gregory B. Roberts
  • Patent number: 9890695
    Abstract: A method of operating a reciprocating engine comprises recirculating exhaust gas from a first cylinder of the engine to an intake stream or air-fuel mixture of a second cylinder of the engine such that a boost pressure of the first cylinder is greater than a boost pressure of the second cylinder. An engine retrofit system and two-cycle engine employing aspects of the method are also disclosed. The present invention has been described in terms of specific embodiment(s), and it is recognized that equivalents, alternatives, and modifications, aside from those expressly stated, are possible and within the scope of the appending claims.
    Type: Grant
    Filed: September 30, 2011
    Date of Patent: February 13, 2018
    Assignee: General Electric Company
    Inventor: Adam Edgar Klingbeil
  • Patent number: 9879628
    Abstract: In a failure diagnosis device of an emission control system that utilizes an electrode-based PM sensor to diagnose a failure of a particulate filter, some embodiments may be to suppress reduction of accuracy of diagnosis of a failure due to in-cylinder rich control. The failure diagnosis device of the emission control system performs a measurement process. The measurement process includes a sensor recovery process of removing PM depositing between the electrodes of the electrode-based PM sensor, a process of starting application of the predetermined voltage to the electrodes of the PM sensor after completion of the sensor recovery process, and a process of obtaining an output value of the PM sensor after elapse of a predetermined time period since the start of application of the predetermined voltage to the electrodes of the PM sensor.
    Type: Grant
    Filed: March 9, 2016
    Date of Patent: January 30, 2018
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Hirokazu Nishijima, Toru Kidokoro, Kazuya Takaoka
  • Patent number: 9845747
    Abstract: A method of controlling fuel injection to the cylinders of an internal combustion engine, the engine having exhaust gas recirculation (EGR) from at least one dedicated EGR (D-EGR) cylinder, with the other cylinders being main cylinders. The D-EGR cylinder is run at a richer equivalence ratio than the main cylinders, with the goal of providing increased H2 and CO in the recirculated exhaust. The rich limit of the D-EGR cylinder is maximized by dividing the fuel injection into multiple fuel injection events, with each fuel injection event occurring during the intake valve lift period of the engine cycle.
    Type: Grant
    Filed: May 14, 2016
    Date of Patent: December 19, 2017
    Assignee: SOUTHWEST RESEARCH INSTITUTE
    Inventors: Bradley D. Denton, Raphael Gukelberger, Christopher J. Chadwell
  • Patent number: 9845751
    Abstract: Methods and systems are provided for improving combustion stability, in particular during transient operations such as tip-out to lower load conditions, when EGR is being purged. Until a desired LP-EGR rate is achieved, fuel may be delivered as a split injection with at least an intake stroke injection and a compression stroke injection. Subsequently, single fuel injection may be resumed.
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: December 19, 2017
    Assignee: Ford Global Technologies, LLC
    Inventors: Steven Wooldridge, Gopichandra Surnilla, Jianwen James Yi, Brad Alan Boyer, James Alfred Hilditch, Michael Howard Shelby, Benjamin Richard Petersen
  • Patent number: 9840976
    Abstract: Methods and systems are provided for improving engine knock tolerance, in particular when rapidly ramping in LP-EGR from low levels of EGR. Until a desired LP-EGR rate is achieved, fuel may be delivered as a split injection with at least an intake stroke injection and a compression stroke injection to compensate for the transport delay in EGR filling the intake system. Subsequently, single fuel injection may be resumed.
    Type: Grant
    Filed: May 8, 2017
    Date of Patent: December 12, 2017
    Assignee: Ford Global Technologies, LLC
    Inventors: Steven Wooldridge, Gopichandra Surnilla, Brad Alan Boyer, James Alfred Hilditch, Michael Howard Shelby, Chris Paul Glugla, Benjamin Richard Petersen
  • Patent number: 9821819
    Abstract: A locomotive assembly including an auxiliary power unit and a method of providing auxiliary power to a locomotive are disclosed. The locomotive assembly includes a locomotive having a power bus, a primary power source electrically coupled to the power bus, and a locomotive controller programmed to control the primary power source and transmit a first command signal to a power unit that is electrically coupled to the power bus. The power unit includes an auxiliary engine-generator set, a power interface electrically coupling the auxiliary engine-generate set to the power bus, and an auxiliary controller electrically coupled to the locomotive controller. The auxiliary controller is programmed to receive the command signal from the locomotive controller indicating a desired amount of power, control the auxiliary engine-generator set to produce at least the desired amount of power, and control the power interface to deliver the desired amount of power to the power bus.
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: November 21, 2017
    Assignee: Bright Energy Storage Technologies, LLP
    Inventors: Scott Raymond Frazier, Kevin Pykkonen, Karl Ginter, Jeffrey Orion Pritchard
  • Patent number: 9822739
    Abstract: In a vehicle provided with an engine, an EGR cooler for cooling EGR gas recirculated from an exhaust channel of the engine to an intake channel thereof by using a coolant, an electric pump for supplying the coolant to the EGR cooler, and a gas temperature sensor for detecting the temperature of the EGR gas temperature at the downstream of the EGR cooler, an ECU acquires a first gas temperature in a normally stable state where the electric pump is rotating, thereafter performs a coolant amount suppressing process to suppress the rotational speed of the electric pump, acquires a second gas temperature in a suppressed stable state after a predefined time has elapsed from the start of the coolant amount suppressing process, and determines that the EGR cooler is abnormal if a difference between the first gas temperature and the second gas temperature is less than a threshold value.
    Type: Grant
    Filed: November 12, 2014
    Date of Patent: November 21, 2017
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Yoshihisa Oda, Toshitake Sasaki, Kenji Kimura, Kazuya Miyaji
  • Patent number: 9822785
    Abstract: Recirculation systems for engine intake air are disclosed having a turbocharger compressor with an inlet and an outlet, a recirculation pathway connecting fluid flow from the outlet of the turbocharger compressor to fluid flow into the inlet of the turbocharger compressor, and a recirculation valve assembly controlling fluid flow through the recirculation pathway. The recirculation valve assembly includes an actuator operating a valve coupled to an aspirator assembly that produces vacuum when the fluid flows through the recirculation pathway from the inlet to the outlet and when fluid flows through the recirculation pathway from the outlet to the inlet. Fluid flows through the recirculation pathway from the outlet to the inlet when the turbocharger generates boost. The vacuum generated by the aspirator assembly is in fluid communication with the actuator to move the valve between two or more positions.
    Type: Grant
    Filed: December 10, 2014
    Date of Patent: November 21, 2017
    Assignee: Dayco IP Holdings, LLC
    Inventors: David Fletcher, Brian M. Graichen, James H. Miller, Keith Hampton, Matt Gilmer, Rex Bravo, Andrew Niedert
  • Patent number: 9771858
    Abstract: An engine system is mounted on a vehicle and includes an engine and a turbocharger. The engine system control apparatus includes: a driving state identifier that identifies a driving state of the vehicle from a plurality of driving states; a surge determiner that determines whether a surge condition as a condition under which a surge noise is generated is satisfied, based on the identified driving state of the vehicle and an operating state of the engine; and a variable nozzle controller that controls, based on the identified driving state of the vehicle and the operating state of the engine, an opening degree of a variable nozzle of the turbocharger to be varied in an open direction, upon determination by the surge determiner that the surge condition is satisfied.
    Type: Grant
    Filed: November 18, 2015
    Date of Patent: September 26, 2017
    Assignee: Subaru Corporation
    Inventors: Tetsuro Masuma, Tazuki Watanabe, Hiroshi Kato
  • Patent number: 9739221
    Abstract: Methods and systems are provided for a boosted engine having a split exhaust system. In one example, a method comprises directing exhaust from a first cylinder group to one or more of a pre-compressor location, a post-compressor location, and an exhaust turbine, and directing exhaust from a second cylinder group to one or more of the pre-compressor location, and the exhaust turbine. Engine efficiency and knock control may be enhanced by directing exhaust gases to different locations based on engine operating conditions.
    Type: Grant
    Filed: July 13, 2015
    Date of Patent: August 22, 2017
    Assignee: Ford Global Technologies, LLC
    Inventors: Daniel Paul Madison, Joseph Norman Ulrey, Brad Alan Boyer
  • Patent number: 9694671
    Abstract: A natural gas system for a vehicle includes a fuel pod, a conduit defining a flow path, a fuel control module, and an accumulator. The fuel pod includes a fuel tank configured to store natural gas. The conduit includes a first end coupled to the fuel pod and a second end configured to be coupled to an engine. The fuel control module is disposed along the flow path and configured to regulate a flow of natural gas to the engine. The accumulator is disposed along the flow path downstream of the fuel control module. The accumulator is configured to buffer variations in the flow of natural gas such that the engine receives a consistent flow of natural gas.
    Type: Grant
    Filed: December 5, 2013
    Date of Patent: July 4, 2017
    Assignee: Oshkosh Corporation
    Inventors: Grant D. Wildgrube, Clint D. Glunz, Shashank Bhatia, Bryan S. Datema
  • Patent number: 9599046
    Abstract: Systems and methods for improving combustion in a highly exhaust gas diluted engine are disclosed. The methods and systems may be provided in an engine that includes independent control of cylinder valves with respect to other cylinder valves.
    Type: Grant
    Filed: June 5, 2014
    Date of Patent: March 21, 2017
    Assignee: Ford Global Technologies, LLC
    Inventors: Thomas G. Leone, Michael Howard Shelby, Daniel Joseph Styles, James Alfred Hilditch, Brad Alan Boyer
  • Patent number: 9561802
    Abstract: If operation mode of an engine is transitioned from natural aspiration lean-burn operation mode to supercharged lean-burn operation mode, an engine control portion temporarily changes an air-fuel ratio from a lean air-fuel ratio to a stoichiometric air-fuel ratio or a rich air-fuel ratio. When the air-fuel ratio is changed from the lean air-fuel ratio to the stoichiometric air-fuel ratio or the rich air-fuel ratio by the engine control portion, a transmission control portion switches a gear ratio of the automatic transmission to a gear ratio that provides an engine rotational speed at which the engine output becomes equal to an engine output before the air-fuel ratio is changed and also at which an intake pipe pressure becomes equal to or closest to an intake pipe pressure before the air-fuel ratio is changed.
    Type: Grant
    Filed: May 21, 2015
    Date of Patent: February 7, 2017
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Shintaro Hotta
  • Patent number: 9556826
    Abstract: An improved apparatus for reducing friction in an EGR driver may include a space member mounted on a stem and having a side provided with a plurality of depressed portions to reduce a contact area with an inner side of a valve, such that the friction generated by a contact of the stem with a stem guide when the stem provided inside the valve vertically moves is reduced.
    Type: Grant
    Filed: February 20, 2015
    Date of Patent: January 31, 2017
    Assignees: Hyundai Motor Company, Kia Motors Corp.
    Inventor: Young Min Kim
  • Patent number: 9541035
    Abstract: An EGR device includes a housing and a valve. The housing has an outer pipe and an inner structure. The inner structure is located inside the outer pipe to define an annular passage externally with the outer pipe. The inner structure defines an inner passage internally. The inner structure has apertures. The valve is in a tubular shape and is located inside the inner structure. The valve is slidable in an axial direction to communicate the annular passage with the inner passage through the apertures and to block the inner passage from the annular passage.
    Type: Grant
    Filed: December 5, 2014
    Date of Patent: January 10, 2017
    Assignees: DENSO International America, Inc., DENSO CORPORATION
    Inventors: Nicholas Polcyn, Jonathan Logan, Dallas Smolarek
  • Patent number: 9541034
    Abstract: A housing has an housing body. An inner pipe is accommodated in the housing body. The inner pipe defines an inner passage internally. The inner pipe defines an annular passage externally with the housing body. The inner pipe has through holes 68 communicating the inner passage with the annular passage. The housing internally defines an EGR channel communicating with the annular passage. The EGR channel accommodates a diffusing device 60 partitioning the EGR channel.
    Type: Grant
    Filed: December 5, 2014
    Date of Patent: January 10, 2017
    Assignees: DENSO International America, Inc., DENSO CORPORATION
    Inventor: Ian Dettloff
  • Patent number: 9528475
    Abstract: Methods and systems are provided for engine dilution control via direct injection of water from a reservoir. In one example, a method may include during select conditions, direct injecting fluid from a reservoir into an EGR cooler. This approach can be used to supplement EGR flow during situations that decrease EGR flow.
    Type: Grant
    Filed: November 11, 2014
    Date of Patent: December 27, 2016
    Assignee: Ford Global Technologies, LLC
    Inventors: Daniel Joseph Styles, Michael Howard Shelby, James Alfred Hilditch, Michael Damian Czekala, Joseph Norman Ulrey
  • Patent number: 9488089
    Abstract: In an engine unit including a combustion unit and an exhaust fluid recirculation apparatus where unburnt fuel is provided to an exhaust flow treatment apparatus for combustion, it may be desirable to prevent unburnt fuel from entering the exhaust fluid recirculation apparatus. A method of controlling operation of an engine unit includes confirming that a valve of the exhaust flow recirculation apparatus is closed, and overriding a control signal for controlling the valve in order to ensure that the valve remains closed before injecting fuel upstream of the valve for combustion in the exhaust fluid treatment apparatus.
    Type: Grant
    Filed: July 24, 2013
    Date of Patent: November 8, 2016
    Assignee: Perkins Engines Company Limited
    Inventor: Antony Eager
  • Patent number: 9482128
    Abstract: The invention relates to a method for regenerating nitrogen oxide storage catalytic converters and to a correspondingly adapted exhaust-gas purification system for lean-burn engines. In particular, the present invention relates to the regeneration of nitrogen oxide storage catalytic converters during special driving situations of the vehicle.
    Type: Grant
    Filed: May 9, 2012
    Date of Patent: November 1, 2016
    Assignee: UMICORE AG & CO. KG
    Inventors: Stephan Eckhoff, Stefan Franoschek, Frank Adam
  • Patent number: 9482187
    Abstract: An exhaust gas recirculation device for a motor vehicle is disclosed with includes an unburnt gas line for guiding an unburnt gas flow and at least one exhaust gas feed line for supplying exhaust gas into the unburnt gas line. At least two discharge openings offset relative to each other in the circumferential direction of the unburnt gas line are provided in the unburnt gas line, by way of which the exhaust gas can be or is supplied to the unburnt gas line.
    Type: Grant
    Filed: February 28, 2014
    Date of Patent: November 1, 2016
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Lutz Kilian Cloos, Gerwin Tittes
  • Patent number: 9441564
    Abstract: Methods and systems are provided for estimating an impact of PCV hydrocarbons on an output of an intake oxygen sensor. In one example, a method may include disabling EGR flow when the impact of PCV hydrocarbons on the output of the intake oxygen sensor is above a threshold. The impact of the PCV hydrocarbons on the output of the intake oxygen sensor may be based on a difference between the output of the intake oxygen sensor and a DPOV sensor when EGR is flow and a difference between the output of the intake oxygen sensor and expected blow-by when EGR is not flowing.
    Type: Grant
    Filed: April 14, 2014
    Date of Patent: September 13, 2016
    Assignee: Ford Global Technologies, LLC
    Inventors: Gopichandra Surnilla, James Alfred Hilditch, Stephen B. Smith, Michael Howard Shelby, Todd Anthony Rumpsa, Mohannad Hakeem
  • Patent number: 9422879
    Abstract: Various systems and method for controlling exhaust gas recirculation (EGR) in an internal combustion engine are provided. In one embodiment, a method includes injecting fuel to a subset of cylinders that includes less than all cylinders of a first cylinder group to obtain a target EGR rate. The first cylinder group provides exhaust gas through an exhaust gas recirculation (EGR) passage structure fluidly coupled between the first cylinder group and an intake passage structure. The method further includes injecting fuel to at least one cylinder of a second cylinder group. The second cylinder group provides substantially no exhaust gas through the EGR passage structure.
    Type: Grant
    Filed: February 26, 2015
    Date of Patent: August 23, 2016
    Assignee: General Electric Company
    Inventors: Neil Xavier Blythe, Shawn Michael Gallagher, James Robert Mischler, Luke Henry
  • Patent number: 9404444
    Abstract: In an exhaust system for an internal combustion engine, an output member is configured to transmit power generated by a motor to a valving element via a valve stem. An output shaft is disposed on a rotation central axis of an output gear and coupled with the output gear to be rotatable integrally therewith. A follower is disposed eccentrically relative to a rotation central axis of the output shaft and connected to the output shaft to be rotatable integrally therewith. A first accommodating chamber accommodates at least the valve stem and the follower. A second accommodating chamber accommodates at least the motor and the output gear. A housing includes a housing wall that divides the first chamber from the second chamber. The housing wall includes a first bearing slidably supporting the output shaft in its rotation direction, and a cylindrical first bearing holder holding outer periphery of the first bearing.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: August 2, 2016
    Assignee: DENSO CORPORATION
    Inventors: Ryo Sano, Satoshi Ishigaki, Hiroki Shimada, Osamu Sato
  • Patent number: 9334812
    Abstract: An object of the present invention is to restrain the emission amount of unburned fuel components while restraining the consumption of fuel with relatively high ignitability in a multi-fuel internal combustion engine. The present invention resides in such a fuel supply control system for a multi-fuel internal combustion engine that a first fuel with relatively high ignitability and a second fuel with relatively low ignitability are used as fuels and the first fuel is used as an ignition source to mixedly combust the first fuel and the second fuel, wherein a supply amount Qd of the first fuel is adjusted on the basis of a difference ?RH between a first heat generation rate RHd which is a heat generation rate given when assuming that only the first fuel is combusted and an actual heat generation rate RHa which is a heat generation rate given when the fuels are actually combusted (S105 to 107, S109).
    Type: Grant
    Filed: March 4, 2011
    Date of Patent: May 10, 2016
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Isamu Goto, Masahiko Masubuchi
  • Patent number: 9328697
    Abstract: Various methods and systems are provided for blocking backflow of exhaust through an exhaust gas recirculation system. In one embodiment, a method comprises flowing exhaust gas through an exhaust gas recirculation (EGR) passage in a first direction from at least a first cylinder group of an engine to an intake manifold of the engine, the exhaust gas flowing in the first direction through a filter arranged in the EGR passage prior to reaching the intake manifold, and blocking flow of gas through the filter in a second, opposite direction with a mechanical one-way valve positioned in the EGR passage between the filter and the intake manifold.
    Type: Grant
    Filed: August 19, 2013
    Date of Patent: May 3, 2016
    Assignee: General Electric Company
    Inventors: Eric David Peters, Nicholas Eric Hansen, Rose Denning
  • Patent number: 9284921
    Abstract: Various methods and systems may be used to provide recirculated engine exhaust to an engine of a hybrid powertrain. It is assumed that the engine is equipped with a dedicated EGR loop. At least one cylinder is operated as a dedicated exhaust gas recirculation (EGR) cylinder, such that all exhaust of that cylinder is recirculated to the fresh air intake of the engine via the EGR loop. One or more cylinders are operated as main cylinders, such that exhaust from those cylinders exits the engine to the atmosphere. The engine itself is operable for at least part of its operation in a decoupled mode in which the dedicated EGR cylinder is mechanically decoupled from the engine crankshaft. During this decoupled mode, the dedicated EGR cylinder powers a generator. The main cylinders are operable exclusively to provide power to the crankshaft.
    Type: Grant
    Filed: June 29, 2014
    Date of Patent: March 15, 2016
    Assignee: SOUTHWEST RESEARCH INSTITUTE
    Inventors: Jess W. Gingrich, Daniel W. Stewart, Terrence F. Alger, II
  • Patent number: 9272241
    Abstract: A combined cleaning system to be used in a wet scrubber process for reducing SOX and NOX in exhaust gases from a combustion engine comprises an Exhaust Gas Cleaning (EGC) scrubber and an Exhaust Gas Recirculation (EGR) scrubber. The combined cleaning system further comprises a scrubber water circulation tank arranged to circulate scrubber water in an EGC scrubber process loop between the scrubber water circulation tank and the EGC scrubber and in an EGR scrubber process loop between the scrubber water circulation tank and the EGR scrubber. The EGR scrubber process loop comprises an arrangement for supply of a first alkaline agent to the flow of scrubber water and a first separator unit to separate particulate matter from the circulated scrubber water.
    Type: Grant
    Filed: September 10, 2013
    Date of Patent: March 1, 2016
    Assignee: ALFA LAVAL CORPORATE AB
    Inventor: Staffan Königsson
  • Patent number: 9228539
    Abstract: Disclosed is an EGR mixer for mixing a fresh air flow and an EGR flow. The EGR mixer comprises an air duct configured to allow a fresh air flow to flow therethrough, and comprises an EGR duct configured to allow an EGR flow to flow therethrough. The EGR mixer comprises a mixing duct positioned downstream of the air duct and the EGR duct. The EGR mixer comprises a supplemental duct fluidly connecting the EGR duct to a second mixing section of the mixing duct. The EGR mixer is configured to mix the fresh air flow and the EGR flow into a mixed flow.
    Type: Grant
    Filed: December 18, 2012
    Date of Patent: January 5, 2016
    Assignee: DEERE & COMPANY
    Inventors: Budhadeb Mahakul, Bradley L. Kasemeier, Douglas S. Brocco
  • Patent number: 9109543
    Abstract: An exhaust manifold for an internal combustion engine with exhaust turbocharging and an exhaust gas recirculation device, includes a header pipe with several inflow openings connected with the combustion chambers of the internal combustion engine via connecting pieces, and outlet openings branching from the header pipe via connecting branches for the exhaust gas recirculation and the exhaust turbocharger. To achieve a high exhaust gas recirculation rate and an effective pressurization of the exhaust turbocharger with exhaust gas, at least one flow guide element is arranged in the header pipe close to the outlet openings which divides the exhaust gas flow onto the two outlet openings in a targeted manner.
    Type: Grant
    Filed: October 17, 2013
    Date of Patent: August 18, 2015
    Assignee: MAN TRUCK & BUS AG
    Inventor: Manfred Greiner