With Exhaust Gas Recirculation Patents (Class 60/605.2)
  • Patent number: 9835082
    Abstract: Methods and systems are provided for enhancing turbocharger performance for a boosted engine system configured to operate with a pattern of deactivated cylinders. In one example, a method may include, in response to a demand for boost, operating with a cylinder pattern based on boost demand and turbocharger configuration. The specific pattern may depend on the pattern constraints imposed by engine load and NVH metrics.
    Type: Grant
    Filed: October 16, 2014
    Date of Patent: December 5, 2017
    Assignee: Ford Global Technologies, LLC
    Inventor: Brad Alan VanDerWege
  • Patent number: 9777619
    Abstract: A ship engine includes a first turbocharger, a first intercooler, a second turbocharger, and a second intercooler. The first turbocharger is arranged at one end of the ship engine with respect to a crank axis direction. The first intercooler and the second turbocharger are arranged in an end portion of the ship engine with respect to a device width direction. The first intercooler and the second turbocharger are arranged side by side in the crank axis direction. The second intercooler is arranged at the other end (at the side opposite to the side where the first turbocharger is arranged) of the ship engine with respect to the crank axis direction.
    Type: Grant
    Filed: January 11, 2013
    Date of Patent: October 3, 2017
    Assignees: Yanmar Co., Ltd., FEV GMBH
    Inventors: Mitsuhiro Hibino, Kazuki Maetani, Frank Haubner, Jeroen Slotman, Moritz Baehr
  • Patent number: 9759228
    Abstract: A turbocharger having a turbine housing with an integral EGR conduit is disclosed. The turbine includes a turbine wheel attached to a turbine shaft and rotatably disposed in a turbine housing having a turbine volute conduit having a turbine inlet passage fluidly coupled to a turbine volute conduit having a turbine volute passage and a turbine volute inlet and an EGR conduit having an EGR passage, the EGR passage having an EGR conduit inlet, the EGR conduit inlet disposed on the turbine inlet conduit. The turbine inlet conduit is configured for fluid communication of a first portion of an exhaust gas flow received from an engine to the turbine wheel. The EGR conduit is configured for fluid communication of a second portion of the exhaust gas flow to an engine intake manifold.
    Type: Grant
    Filed: October 16, 2009
    Date of Patent: September 12, 2017
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Edward R. Romblom, Ronald M. Tkac, Gary J. Arvan
  • Patent number: 9752537
    Abstract: A unique engine system has an engine with a dedicated exhaust gas recirculation cylinder, an EGR system that receives exhaust gas from the dedicated cylinder, and a turbocharger having turbine inlet ports in fluid communication with other engine cylinders via a plurality of exhaust passages. At least two of the exhaust passages are substantially isolated from each other. Other embodiments include apparatuses, systems, devices, hardware, methods, and combinations for engines and engine systems.
    Type: Grant
    Filed: May 20, 2015
    Date of Patent: September 5, 2017
    Assignee: Cummins Inc.
    Inventors: Adrian P. Dale, Michael D. Dolton, Samuel C. Geckler, James Alexander McEwen, Nicholas Kenneth Sharp, Stephen Edward Garrett, Anthony Kyle Perfetto
  • Patent number: 9695763
    Abstract: In an air handling system of a uniflow-scavenged, two-stroke cycle opposed-piston engine, one or more engine operating state parameters are sensed, numerical values of air handling parameters based on trapped conditions in a cylinder of the engine at the last port closing of an engine operating cycle are determined in response to the sensed parameters, the numerical values are evaluated, and one or more of the numerical values is adjusted in response to the evaluation. The adjusted numerical values are used to control charge air flow and EGR flow in the air handling system.
    Type: Grant
    Filed: November 2, 2015
    Date of Patent: July 4, 2017
    Assignee: ACHATES POWER, INC.
    Inventors: Randy E. Herold, Nishit Nagar, Fabien G. Redon
  • Patent number: 9689354
    Abstract: An exhaust gas recirculation system for an engine is provided. The system comprises an exhaust duct configured to receive and exhaust gases from the engine; an exhaust gas recirculation duct configured to recirculate a portion of the exhaust gases within the exhaust duct to the intake of the engine; and at least one recirculation treatment device provided in the exhaust gas recirculation duct, wherein the recirculation treatment device comprises a catalyst configured to encourage removal of contaminants from the recirculated exhaust gases.
    Type: Grant
    Filed: January 4, 2017
    Date of Patent: June 27, 2017
    Assignee: Ford Global Technologies, LLC
    Inventors: Chris Beresford-Knox, Anthony Birri, Iain Murray, Mark Stephen Brogan
  • Patent number: 9677510
    Abstract: Methods and systems are provided for reducing torque transients experienced when a dedicated EGR cylinder is transitioned in to or out of dedicated EGR mode. During a transition, each of an intake throttle and a wastegate is adjusted in opposing directions. Throttle and wastegate adjustments are coordinated with adjustments to spark timing and intake cam timing to provide sufficient torque reserve for the transition.
    Type: Grant
    Filed: October 14, 2014
    Date of Patent: June 13, 2017
    Assignee: Ford Global Technologies, LLC
    Inventors: Daniel Joseph Styles, Chris Paul Glugla, Thomas G. Leone, Gregory Patrick McConville, James Alfred Hilditch
  • Patent number: 9677509
    Abstract: A power plant is provided and may include an engine configured to receive charge air and produce exhaust. A first turbo machine may be driven by the exhaust and may drive a compressor that receives air and produces the charge air. A second turbo machine may receive the exhaust and may rotationally drive a pump in response thereto. The pump may receive an EGR from the exhaust and may introduce the pumped EGR to the charge air.
    Type: Grant
    Filed: November 18, 2013
    Date of Patent: June 13, 2017
    Assignee: AVL POWERTRAIN ENGINEERING, INC.
    Inventors: Ho Teng, Gerhard Regner, Gary Hunter
  • Patent number: 9670881
    Abstract: A supercharger-equipped internal combustion engine in the present invention includes a turbo-supercharger (20) which includes, at some point in an intake passage (26), a centrifugal compressor (20b) having an impeller section (20b4) for housing a compressor impeller (20b3). In the supercharger-equipped internal combustion engine, EGR gas and blow-by gas are introduced into an intake system in such a way as to flow into the centrifugal compressor (20b) via an EGR gas introduction section (40a) and a blow-by gas introduction section (48a). The supercharger-equipped internal combustion engine further includes a partition wall (52) which guides the EGR gas and the blow-by gas toward the centrifugal compressor (20b) so that the EGR gas and the blow-by gas are not mixed with each other until the EGR gas and the blow-by gas enter into the impeller section (20b4).
    Type: Grant
    Filed: November 18, 2011
    Date of Patent: June 6, 2017
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Jumpei Shioda
  • Patent number: 9664148
    Abstract: An engine system having donor cylinders and non-donor cylinders is disclosed. The engine system may have a first intake manifold configured to distribute air into the non-donor cylinders, and a second intake manifold separate from the first intake manifold and configured to distribute air into the donor cylinders. The engine system may also have a first exhaust manifold configured to discharge exhaust from the non-donor cylinders to the atmosphere, and a second exhaust manifold separate from the first exhaust manifold and configured to recirculate exhaust from the donor cylinders to the first intake manifold.
    Type: Grant
    Filed: March 31, 2015
    Date of Patent: May 30, 2017
    Assignee: Electro-Motive Diesel, Inc.
    Inventor: Aaron Gamache Foege
  • Patent number: 9657688
    Abstract: The invention relates to an assembly (1) comprising: an admission circuit (4) extending between an air inlet (11) and an outlet connected to the inlet of a heat engine (2); an exhaust circuit (6) extending between an inlet connected to the outlet of the heat engine (2) and an exhaust gas outlet (13); said heat engine (2); a return loop (22) enabling all or some of the exhaust gases in the exhaust circuit (6) to be reinjected upstream of the heat engine (2); and an electric compressor (30) arranged in the assembly (1) in such a way as to be able to receive gases recirculating in the return loop (22).
    Type: Grant
    Filed: June 6, 2013
    Date of Patent: May 23, 2017
    Assignee: Valeo Systemes de Controle Moteur
    Inventors: Philippe Lutz, Sébastien Potteau, Aurélien Ramseyer
  • Patent number: 9644553
    Abstract: An internal combustion engine of the present invention is an internal combustion engine including a supercharger and an EGR device. Further, the internal combustion engine has an ISC passage that connects an upstream side and a downstream side of a throttle valve in an intake passage, and an ISC valve that regulates an amount of air that flows in the ISC passage. A control device of the present invention performs valve opening control that makes an opening degree of the ISC valve an opening degree larger than a reference opening degree when request torque required by the internal combustion engine is smaller than estimated torque that can be generated in the internal combustion engine, and prohibits opening of an EGR valve of the EGR device during execution of the valve opening control.
    Type: Grant
    Filed: January 8, 2014
    Date of Patent: May 9, 2017
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Yasuhiro Kuze
  • Patent number: 9605586
    Abstract: An intake pipe for an internal combustion engine, comprising an outer housing of the intake pipe, wherein a feed line for charge air opens into an inlet section of the housing, a heat exchanger that is integrated in the intake pipe and cooled by a coolant and that comprises a plurality of exchanger tubes, in particular flat tubes, and an engine flange for connecting the intake tube to a cylinder head of an internal combustion engine, wherein charge air flows through the exchanger tubes and at least a section of the outer housing is designed as a water jacket surrounding the exchanger tubes.
    Type: Grant
    Filed: May 21, 2012
    Date of Patent: March 28, 2017
    Assignee: MAHLE International GmbH
    Inventors: Christian Saumweber, Viorel Braic, Mark Schienemann
  • Patent number: 9581089
    Abstract: A gas engine assembly includes a compressor, a combustion system, a bypass line and a control system. The control system is configured to control gas supply parameters based on a transportation delay value. The transportation delay value corresponds to a delay between a time when a gas supply control mechanism is adjusted and a time that gas having a corresponding adjustment of a gas characteristic is received at a predetermined point downstream from the gas supply control mechanism.
    Type: Grant
    Filed: May 10, 2013
    Date of Patent: February 28, 2017
    Assignee: General Electric Company
    Inventors: Oscar Eduardo Sarmiento Penuela, Raphael Rupert Burgmair, Johannes Huber, Medy Satria, Rosa Castane Selga, Prashant Srinivasan
  • Patent number: 9528429
    Abstract: Methods and systems are provided for reducing turbo lag in a boosted engine. A boost reservoir coupled to the engine may be charged with compressed intake air and/or combusted exhaust gas. The pressurized charge may then be discharged during a tip-in to either the intake or the exhaust manifold.
    Type: Grant
    Filed: May 17, 2012
    Date of Patent: December 27, 2016
    Assignee: Ford Global Technologies, LLC
    Inventors: John Eric Rollinger, Brien Lloyd Fulton, Freeman Carter Gates, Adam J. Richards
  • Patent number: 9470184
    Abstract: An exhaust gas recirculation control device of an engine includes an exhaust turbocharger having a turbine disposed in an exhaust passage and a compressor disposed in an intake passage, low-pressure and high-pressure EGR passages connecting the exhaust passage downstream of the turbine to the intake passage upstream of the compressor and connecting the exhaust passage upstream of the turbine with the intake passage downstream of the compressor, respectively, low-pressure and high-pressure EGR valves disposed in the low-pressure and high-pressure EGR passages and for changing cross-sectional areas thereof, respectively, a valve control device for controlling openings of the low-pressure and high-pressure EGR valves, a total intake gas amount detector for detecting a total intake gas amount, a fresh air amount detector for detecting a fresh air amount, and a pressure difference detector for detecting a pressure difference between the exhaust and intake passage sides of the high-pressure EGR valve.
    Type: Grant
    Filed: August 27, 2014
    Date of Patent: October 18, 2016
    Assignee: Mazda Motor Corporation
    Inventors: Tomoyuki Kihara, Daishi Ikeda, Yosuke Honda, Takashi Hatano
  • Patent number: 9458799
    Abstract: A method for operating a motor vehicle internal combustion engine that has an exhaust tract with an exhaust gas purification unit acting catalytically and/or by filtration with which combustion air supplemented by exhaust gas diverging from the exhaust tract is fed to the combustion chambers of the internal combustion engine by exhaust gas branching off from the exhaust tract at a total exhaust gas recirculation rate. The total exhaust gas recirculation rate has a low-pressure proportion diverging downstream from the exhaust gas purification unit and a high-pressure proportion diverging upstream from an exhaust gas turbocharger turbine arranged in the exhaust tract. An essentially decreasing low pressure proportion is set with at least approximately the same operating points of the internal combustion engine with an increasing operating period of the exhaust gas purification unit.
    Type: Grant
    Filed: October 18, 2011
    Date of Patent: October 4, 2016
    Assignee: Daimler AG
    Inventors: Ortwin Balthes, Berthold Keppeler, Siegfried Mueller
  • Patent number: 9435296
    Abstract: An engine system having a turbocharger may include a cylinder head at which an intake manifold and an exhaust manifold may be placed, the turbocharger connected to the exhaust manifold to compress intake air by a first exhaust gas exhausted from the exhaust manifold, an intake line that may be formed between the turbocharger and the intake manifold through the cylinder head to deliver a compressed air compressed by the turbocharger, an intercooler placed between the intake line and the intake manifold to cool the compressed air, an Exhaust Gas Recirculation (EGR) line that recirculates a second exhaust gas that may be exhausted from the exhaust manifold to the intake manifold, and an EGR cooler that may be placed between the EGR line and the intake manifold to cool an EGR gas, wherein a low temperature coolant passing through the cylinder head cools the compressed air.
    Type: Grant
    Filed: September 17, 2014
    Date of Patent: September 6, 2016
    Assignee: Hyundai Motor Company
    Inventor: Won Rok Choi
  • Patent number: 9435250
    Abstract: An engine system having a turbocharger may include a cylinder head, at which an intake manifold and an exhaust manifold may be positioned, the turbocharger which may be connected to the exhaust manifold, an intake line formed between the turbocharger and the intake manifold to transmit compressed air compressed by the turbocharger, through the cylinder head, an intercooler disposed to be adjacent to the intake manifold to cool the compressed air supplied through the intake line, an Exhaust Gas Recirculation (EGR) line connecting the exhaust manifold and the intake manifold to recirculate the exhaust gas, to the intake manifold through the cylinder head, and an EGR cooler disposed to be adjacent to the intake manifold, wherein a low-temperature coolant supplied from a low temperature radiator to pass through the cylinder head to cool the compressed air and the EGR gas that pass through the cylinder head.
    Type: Grant
    Filed: July 28, 2014
    Date of Patent: September 6, 2016
    Assignee: Hyundai Motor Company
    Inventor: Won Rok Choi
  • Patent number: 9404409
    Abstract: Embodiments for heating a vehicle cabin are disclosed. In one example, a method for heating a vehicle cabin comprises closing an exhaust throttle while diverting at least a portion of throttled exhaust gas through an exhaust gas recirculation (EGR) cooler coupled upstream of the throttle, and transferring heat from the EGR cooler to a heater core configured to provide heat to the vehicle cabin. In this way, exhaust heat may be directly routed to the cabin heating system.
    Type: Grant
    Filed: November 5, 2013
    Date of Patent: August 2, 2016
    Assignee: Ford Global Technologies, LLC
    Inventor: Ross Dykstra Pursifull
  • Patent number: 9388720
    Abstract: A method for treating exhaust gas of an internal combustion engine involves introducing less fuel into at least one first cylinder of the internal combustion engine than into at least one second cylinder of the internal combustion engine. Exhaust gas emerging from the at least one first cylinder is at least partially recycled into a supply air section of the internal combustion engine. At least the exhaust gas of the at least one second cylinder is supplied to an exhaust gas after-treatment unit. An exhaust gas line, by means of which exhaust gas of the at least one first cylinder of the exhaust gas after treatment unit can be supplied, is at least partially blocked.
    Type: Grant
    Filed: July 26, 2013
    Date of Patent: July 12, 2016
    Assignee: Daimler AG
    Inventor: Stefan Kuenzel
  • Patent number: 9382836
    Abstract: A system and methods for routing condensate collected in a heat exchanger reservoir to either a combustion chamber of an engine or a position in the engine exhaust based on the type of contaminate in the condensate and operating parameters of the engine or the catalyst are described. In one particular example, the method includes accumulating a portion of compressed air in an accumulator, and when an engine output is below a predetermined amount, coupling a part of the accumulated air with the condensate through a passage into the combustion chamber. Thereby, the methods described may be used to distribute condensate formed in the heat exchanger even at low engine loads.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: July 5, 2016
    Assignee: Ford Global Technologies, LLC
    Inventors: Karen Elizabeth Maceroni, Mark Michael Madin, Christopher Donald Wicks
  • Patent number: 9366178
    Abstract: Methods and systems are provided for an engine including a first turbocharger having a first compressor and a second turbocharger having a second compressor. An EGR differential between the first compressor and the second compressor may be increased under a condensation condition, and decreased under a surge condition. The EGR differential may also be decreased when a compressor outlet temperature exceeds an outlet temperature threshold.
    Type: Grant
    Filed: March 10, 2014
    Date of Patent: June 14, 2016
    Assignee: Ford Global Technologies, LLC
    Inventors: Daniel Joseph Styles, Brad Alan Boyer, Satheesh Makkapati
  • Patent number: 9359976
    Abstract: An engine assembly includes an intake assembly, a spark-ignited internal combustion engine, and an exhaust assembly. The intake assembly includes a charge air cooler disposed between an exhaust gas recirculation (EGR) mixer and a backpressure valve. The charge air cooler has both an inlet and an outlet, and the back pressure valve is configured to maintain a minimum pressure difference between the inlet of the charge air cooler and an outlet of the backpressure valve. A dedicated exhaust gas recirculation system is provided in fluid communication with at least one cylinder and with the EGR mixer. The dedicated exhaust gas recirculation system is configured to route all of the exhaust gas from the at least one cylinder to the EGR mixer for recirculation back to the engine.
    Type: Grant
    Filed: April 24, 2013
    Date of Patent: June 7, 2016
    Assignee: GM Global Technology Operations LLC
    Inventors: Edward J. Keating, Rodney E. Baker
  • Patent number: 9334841
    Abstract: A method of controlling an engine includes injecting a first fuel and a second fuel to each of a donor cylinder group and a non-donor cylinder group of the engine. The method also includes injecting a higher fraction of the first fuel into the donor cylinder group in comparison to the first fuel being injected into the non-donor cylinder group. Further, the method includes injecting a lower fraction of the second fuel into the donor cylinder group in comparison to the second fuel being injected into the non-donor cylinder group. Furthermore, the method includes recirculating an exhaust emission from the donor cylinder group to the non-donor cylinder group and the donor cylinder group and combusting a mixture of air, the first fuel, the second fuel and the exhaust emission from the donor cylinder group in both the donor cylinder group and the non-donor cylinder group.
    Type: Grant
    Filed: October 16, 2014
    Date of Patent: May 10, 2016
    Assignee: General Electric Company
    Inventors: Jennifer Lynn Jackson, Adam Edgar Klingbeil, Thomas Michael Lavertu
  • Patent number: 9322350
    Abstract: A method for controlling differences in cylinder mixtures for a two cylinder bank engine having a turbocharger is presented. In one example, the description includes a method for adjusting valve timing to reduce cylinder mixture variation.
    Type: Grant
    Filed: September 11, 2012
    Date of Patent: April 26, 2016
    Assignee: Ford Global Technologies, LLC
    Inventors: Eric Matthew Storhok, Ralph Wayne Cunningham
  • Patent number: 9303650
    Abstract: Methods and systems are provided for injecting exhaust gases from an exhaust gas recirculation system proximate to a trailing edge of a compressor wheel of a compressor. In one example, a compressor of a turbocharger may include an exhaust gas recirculation inlet volute within a casting of the compressor. The exhaust gas recirculation inlet volute may include an injection port positioned downstream of the trailing edge of the compressor wheel for injecting exhaust gases into intake air flow.
    Type: Grant
    Filed: June 24, 2013
    Date of Patent: April 5, 2016
    Assignee: Ford Global Technologies, LLC
    Inventors: Joseph Norman Ulrey, Keith Michael Plagens, Gregory Patrick McConville, Daniel Joseph Styles
  • Patent number: 9273640
    Abstract: An exhaust gas control apparatus (100) of an internal combustion engine (200) of a vehicle, which is provided with: the internal combustion engine which can use fuel containing methane in exhaust gas; an exhaust gas purifying apparatus (300) disposed in an exhaust passage of the internal combustion engine; an EGR passage (400) which can recirculate the exhaust gas to an intake passage of the internal combustion engine, in a HPL path which does not include the exhaust gas purifying apparatus; and an adjusting device (407) which can adjust an exhaust gas recirculation amount in the EGR passage, is provided with: a first specifying device for specifying a methane concentration in the exhaust gas; and a first controlling device for controlling the adjusting device to increase an exhaust gas recirculation amount in the HPL path if the specified methane concentration is greater than or equal to a reference value.
    Type: Grant
    Filed: June 18, 2010
    Date of Patent: March 1, 2016
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yoshihisa Shinoda, Keisuke Sano
  • Patent number: 9261073
    Abstract: A wind energy system comprising a wind turbine comprising a cowling surrounded by a diffuser and a plurality of inner rotor blades located inside of the cowling that rotate about an inner hub, a plurality of outer rotor blades positioned between the diffuser and the cowling that are counter-rotating relative to the plurality of inner rotor blades, a drive mechanism located within the inner rotor hub, a dynamic telescopic tower, and a tower support that connects the wind turbine to the dynamic telescopic tower.
    Type: Grant
    Filed: April 26, 2013
    Date of Patent: February 16, 2016
    Assignee: LGT Advanced Technology Limited
    Inventors: Timothy Blake, George Harold Ryton, Hassan Mansir, Nicholas James Hemingway
  • Patent number: 9243533
    Abstract: An engine system includes: an exhaust path through which an exhaust gas of an engine passes; an urea injection valve that injects urea into the exhaust path; a catalyst that is provided in the exhaust path on a downstream of the urea injection valve, and that selectively reduces NOx by using ammonia acting as a reducing agent, the ammonia being generated by hydrolyzing injected urea from the urea injection valve; a heating portion that is capable of heating the catalyst and the injected urea; and a control unit that performs first control, in which the urea injection valve injects urea, the heating portion heats the injected urea to generate ammonia, or second control, in which the heating portion increases a temperature of the catalyst to a temperature at which NOx can be reduced, on a basis of an amount of ammonia adsorbed on the catalyst.
    Type: Grant
    Filed: June 7, 2012
    Date of Patent: January 26, 2016
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Akira Yamashita, Koichiro Nakatani
  • Patent number: 9239021
    Abstract: An internal combustion engine with a supercharger comprises an internal combustion engine including a plurality of cylinders; an intake passage that supplies gas to the internal combustion engine; a turbocharger-type supercharger including a turbine portion having a plurality of exhaust gas introduction passages; and an exhaust passage including a plurality of connecting passages that connect the plurality of cylinders and the plurality of exhaust gas introduction passages, wherein exhaust gas discharged from the internal combustion engine flows through the exhaust passage. The internal combustion engine comprises a bridge passage that connects two or more of the plurality of connecting passages to each other; a branch passage connected to the bridge passage; and a first opening and closing device provided into the bridge passage to open and close the bridge passage.
    Type: Grant
    Filed: September 7, 2010
    Date of Patent: January 19, 2016
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Takahiro Moroi, Kenta Akimoto, Manabu Ishikawa, Hisao Kobayashi, Hiroshi Uchida
  • Patent number: 9238983
    Abstract: Embodiments for heating an emission control device are provided. In one example, a method for a turbocharged engine comprises during an engine cold-start, delivering boosted air from downstream of a compressor into a wastegate duct coupled across a turbine and exothermically reacting a reductant with the boosted air upstream of an exhaust emission control device. In this way, boosted air may be used to initiate an exothermic reaction to heat the device.
    Type: Grant
    Filed: September 6, 2012
    Date of Patent: January 19, 2016
    Assignee: Ford Global Technologies, LLC
    Inventors: Xiaogang Zhang, Jianwen James Yi, Wen Dai, Paul M. Laing, John Hedges
  • Patent number: 9228538
    Abstract: An object of the invention is to provide an internal combustion engine control apparatus that can restrain an EGR amount from becoming excessive, and restrain destabilization of combustion . . . . First, in response to a change of an operation condition, operation amounts of a plurality of actuators that influence the EGR amount are set. When the operation amounts of the plurality of actuators are set, operation of an actuator that decreases the EGR amount (referring to an external EGR amount, an internal EGR amount or both, the same applying to the following) is started (S140), and thereafter, operation of another actuator that increases the EGR amount is started (S150).
    Type: Grant
    Filed: May 19, 2011
    Date of Patent: January 5, 2016
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Shigeki Miyashita
  • Patent number: 9228508
    Abstract: In a method for determining a low pressure exhaust gas recirculation mass flow {dot over (m)}Opt in the air system of an internal combustion engine (10) with low pressure exhaust gas recirculation, the determination of the low pressure exhaust gas recirculation mass flow {dot over (m)}Opt involves a preliminary low pressure exhaust gas recirculation mass flow {dot over (m)}EGRLPDs which is determined from a function involving, in particular, the pressure p42 upstream and the pressure p12 downstream of a low pressure side exhaust gas recirculation valve EGRVIvLP (29), the temperature TEGRVIvPUs downstream of the low pressure side exhaust gas recirculation valve (29), and the geometry arEGRVIvLP of the low pressure side exhaust gas recirculation valve (29). According to the invention, at least one mass balance based variable is also considered in the determination of the low pressure exhaust gas recirculation mass flow {dot over (m)}Opt.
    Type: Grant
    Filed: April 19, 2012
    Date of Patent: January 5, 2016
    Assignee: Robert Bosch GmbH
    Inventors: Wilhelm Blumendeller, Thomas Bleile, Arvid Sievert, Martin Hoerner, Rene Huck
  • Patent number: 9217345
    Abstract: Methods and systems are provided for regenerating a particulate filter in an engine exhaust, where burning of soot is initiated by introducing additional oxygen into the exhaust gas upstream of the particulate filter where an exhaust temperature exceeds a threshold, a soot burn rate controlled by adjusting pulsing of the additional oxygen. Further, the pulsing of the additional oxygen is introduced via a high-pressure EGR passage during boosted engine conditions.
    Type: Grant
    Filed: June 20, 2013
    Date of Patent: December 22, 2015
    Assignee: Ford Global Technologies, LLC
    Inventors: Robert Ukropec, Alexey A. Dubkov, Christoph Boerensen, Elmar Riesmeier, Mario Balenovic, Brendan Patrick Carberry
  • Patent number: 9217396
    Abstract: According to one embodiment of the invention, a turbine housing includes a turbine inlet in fluid communication with a turbine volute configured to house a turbine wheel, the turbine inlet configured to direct an exhaust gas flow from an engine to the turbine wheel. The turbine housing also includes a turbine outlet in fluid communication with the turbine volute, the turbine outlet configured to direct the exhaust gas flow to an exhaust gas conduit and a first exhaust gas recirculation supply port located on and in fluid communication with the turbine outlet, the first exhaust gas recirculation supply port being configured to direct a portion of the exhaust gas flow to an exhaust gas recirculation supply conduit.
    Type: Grant
    Filed: December 22, 2010
    Date of Patent: December 22, 2015
    Assignee: GM Global Technology Operations LLC
    Inventor: Ko-Jen Wu
  • Patent number: 9212630
    Abstract: Various methods and systems are provided for regeneration of an exhaust gas recirculation cooler. One example method includes adjusting cooling of exhaust gas by an exhaust gas recirculation cooler to maintain a manifold air temperature during an idle condition of an engine. The method further includes initiating regeneration of the exhaust gas recirculation cooler during the idle condition when an effectivity of the exhaust gas recirculation cooler falls below a threshold effectivity prior to or during the idle condition.
    Type: Grant
    Filed: November 9, 2011
    Date of Patent: December 15, 2015
    Assignee: General Electric Company
    Inventors: Eric David Peters, Adam Klingbeil, Michael Easter
  • Patent number: 9194307
    Abstract: Systems and methods for fuelling a plurality of cylinders of an internal combustion engine are disclosed. The system includes a dedicated exhaust gas recirculation system for recirculating exhaust gas flow from at least one dedicated cylinder of an engine into an intake system prior to combustion. The system further includes a fueling system to provide a first flow of fuel to each of the plurality of cylinders and a second flow of fuel to each of the dedicated cylinders that is in addition to the first flow of fuel.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: November 24, 2015
    Assignee: Cummins Inc.
    Inventors: Samuel C. Geckler, Marten H. Dane, Anthony Kyle Perfetto
  • Patent number: 9181905
    Abstract: A system controlling an air handling system for an internal combustion engine. An EGR valve in-line with an EGR passageway fluidly coupled between exhaust and intake manifolds of the engine is controllable between fully closed open positions to control a flow rate of exhaust gas through the EGR passageway. A control circuit determines a pump enable value as a function of at least one of a target engine speed and a total fueling target, determines a maximum achievable flow rate of recirculated exhaust gas through the EGR passageway with the EGR valve in the fully open position, and activates an electric gas pump to increase the flow rate of exhaust gas through the EGR passageway if the pump enable value exceeds a threshold pump enable value and a target flow rate of recirculated exhaust gas through the EGR passageway is less than the maximum achievable flow rate.
    Type: Grant
    Filed: September 25, 2011
    Date of Patent: November 10, 2015
    Assignee: Cummins Inc.
    Inventors: John N. Chi, John M. Mulloy, Sriram S. Popuri, Timothy R. Frazier, Martin T. Books, Divakar Rajamohan, Indranil Brahma
  • Patent number: 9181854
    Abstract: The present invention relates to a turbocharger (1) for an internal combustion engine (2) having at least one exhaust-gas recirculation line (3) which enters via an exhaust-gas mixing-in opening (12) into an intake line (10) of the internal combustion engine (2); having a turbine (4); and having a compressor (5); which is drive-connected to the turbine (4) and which has a compressor wheel (6) which is arranged in a compressor housing (7) into which the intake line (10) opens via a compressor inlet (11), having a mixing device (18) for mixing recirculated exhaust gas and fresh air, with the mixing device (18) having at least two guide plates (21, 22) in the shape of truncated cone shell segments which are arranged radially offset with respect to one another and which delimit in each case one inflow gap (23, 24) at their longitudinal edges arranged offset with respect to one another.
    Type: Grant
    Filed: February 23, 2010
    Date of Patent: November 10, 2015
    Assignee: BorgWarner Inc.
    Inventor: Thomas Lischer
  • Patent number: 9175644
    Abstract: An engine assembly includes an intake assembly, an internal combustion engine defining a plurality of cylinders and configured to combust a fuel and produce exhaust gas, and an exhaust assembly in fluid communication with a first subset of the plurality of cylinders. Each of the plurality of cylinders are provided in fluid communication with the intake assembly. The exhaust assembly is provided in fluid communication with a first subset of the plurality of cylinders, and a dedicated exhaust gas recirculation system in fluid communication with both a second subset of the plurality of cylinders and with the intake assembly. The dedicated exhaust gas recirculation system is configured to route all of the exhaust gas from the second subset of the plurality of cylinders to the intake assembly. Finally, the engine assembly includes a turbocharger having a variable geometry turbine in fluid communication with the exhaust assembly.
    Type: Grant
    Filed: April 24, 2013
    Date of Patent: November 3, 2015
    Assignee: GM Global Technology Operations LLC
    Inventor: Edward J. Keating
  • Patent number: 9169797
    Abstract: A piston engine may include a piston and cylinder assembly. A piston assembly may be configured to translate in a cylinder liner, which may form a bore in the cylinder. The cylinder liner may be deformable, and deformations of the cylinder liner may affect the clearance gap between the piston assembly and the cylinder. A liner fluid may be supplied to the cylinder liner to create a pressure differential across the liner, and a resulting deformation. The liner fluid may be used to provide cooling as well as liner deformation to control the clearance gap. A cylinder may include one or more fluid passages configured to provide heating, cooling, or both. A cylinder may include one or more localized heat sources such as, for example, electric resistance heaters or heating fluid passages.
    Type: Grant
    Filed: December 29, 2011
    Date of Patent: October 27, 2015
    Assignee: EtaGen, Inc.
    Inventors: John Lawler, Matt Svrcek
  • Patent number: 9145851
    Abstract: A method and device for diagnosing a low pressure exhaust gas recirculation system (LPEGRS) of an internal combustion engine having an intake area for supplying fresh air which includes in succession in the flow direction a first section having a low pressure in which an air mass flow sensor is situated, a compressor and a second section having a high pressure, the engine exhaust area including a second section having a low exhaust gas pressure, and the LPEGRS which has an adjustable LPEGR valve recirculating at least a portion of the exhaust gas in the second section of the exhaust area to the first section of the intake area.
    Type: Grant
    Filed: January 16, 2014
    Date of Patent: September 29, 2015
    Assignee: ROBERT BOSCH GMBH
    Inventors: Thomas Bossmeyer, Stefan Motz, Jens Pawlak
  • Patent number: 9140216
    Abstract: The present invention is relative to a control method of a turbo-compound engine apparatus wherein said apparatus comprises a low pressure compressor connected to the high pressure turbine and a low pressure turbine connected to a high pressure compressor by means of a coupling unit. The apparatus also comprises first bypassing means of said high pressure compressor. The method according to the invention comprises the step of deactivating said first bypassing means when at least a specific condition occurs.
    Type: Grant
    Filed: May 30, 2012
    Date of Patent: September 22, 2015
    Assignee: FPT Motorenforschung AG
    Inventor: Christian Maier
  • Patent number: 9140168
    Abstract: An exhaust system for an engine comprises an exhaust heat recovery apparatus configured to receive exhaust gas from the engine and comprises a first flow passage in fluid communication with the exhaust gas and a second flow passage in fluid communication with the exhaust gas. A heat exchanger/energy recovery unit is disposed in the second flow passage and has a working fluid circulating therethrough for exchange of heat from the exhaust gas to the working fluid. A control valve is disposed downstream of the first and the second flow passages in a low temperature region of the exhaust heat recovery apparatus to direct exhaust gas through the first flow passage or the second flow passage.
    Type: Grant
    Filed: April 1, 2010
    Date of Patent: September 22, 2015
    Assignee: GM Global Technology Operations LLC
    Inventor: Michael G. Reynolds
  • Patent number: 9133793
    Abstract: According to one embodiment of the invention, a compressor housing includes a compressor inlet in fluid communication with a compressor volute configured to house a compressor wheel, the compressor inlet configured to provide a first air flow to the compressor wheel and a compressor outlet in fluid communication with the compressor volute, the compressor outlet configured to direct a compressed gas to an intake manifold. The compressor housing further includes an exhaust gas recirculation inlet port in fluid communication with the compressor volute, the exhaust gas recirculation inlet port being configured to combine an exhaust gas flow with the air flow to the compressor wheel.
    Type: Grant
    Filed: December 22, 2010
    Date of Patent: September 15, 2015
    Assignee: GM Global Technology Operations LLC
    Inventor: Ko-Jen Wu
  • Patent number: 9121330
    Abstract: A porting system for a turbo-charged loop scavenged two-stroke engine includes a cylinder including a cylinder wall and a cylinder head. At least one inlet port is provided in the cylinder wall. The at least one inlet port is arranged a first distance from the cylinder head and fluidically connected to a compressor portion of a turbo-charger. A first exhaust port is provided in the cylinder wall. The first exhaust port is arranged a second distance from the cylinder head and is fluidically connected to a turbine portion of the turbo-charger through first exhaust passage. A second exhaust port is provided in the cylinder wall. The second exhaust port is arranged a third distance from the cylinder head that is greater than the second distance and the second exhaust passage is fluidically connected to a second exhaust passage bypassing the turbine portion.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: September 1, 2015
    Assignee: GM Global Technology Operations LLC
    Inventor: Robert D. Straub
  • Patent number: 9080536
    Abstract: An engine system includes a first cylinder group, a second cylinder group, an inlet manifold coupled to the first cylinder group and the second cylinder group, an inlet passage coupled to the inlet manifold to provide inlet air to the inlet manifold, a first exhaust manifold coupled to the first cylinder group, a second exhaust manifold coupled to the second cylinder group, and a mixer pipe positioned within the second exhaust manifold and/or the intake passage to mix exhaust gas recirculation (EGR) gases exhausted by the second cylinder group that are delivered through the second exhaust manifold with inlet air. The mixer pipe forms an inlet end that is coupled to the second exhaust manifold and an outlet end that is located upstream of the cylinders in the first cylinder group and the cylinders in the second cylinder group.
    Type: Grant
    Filed: February 24, 2011
    Date of Patent: July 14, 2015
    Assignee: General Electric Company
    Inventors: Paul Lloyd Flynn, Eric David Peters, Michael Allen Easter
  • Patent number: 9080523
    Abstract: Methods and systems are provided for a boosted engine having a split exhaust system. One method includes reducing knock by flowing a combination of exhaust from towards the end of an exhaust stroke and blowthrough air to the intake of a compressor via a compressor inlet valve.
    Type: Grant
    Filed: January 16, 2014
    Date of Patent: July 14, 2015
    Assignee: Ford Global Technologies, LLC
    Inventors: Joseph Norman Ulrey, Brad Alan Boyer
  • Patent number: 9074560
    Abstract: An exhaust gas recirculation control apparatus includes: an EGR valve adjusting a flow rate of EGR gas recirculated from an exhaust manifold to an intake manifold; a manifold absolute pressure (MAP) sensor measuring pressure inside the intake manifold; a throttle valve controlling the amount of inflow air; an igniter spraying fuel; an acceleration pedal angular position sensor; a crank position sensor measuring engine RPM; a vehicle speed sensor measuring a speed of a vehicle; and a control portion receiving a pressure signal from the MAP sensor, calculating a ratio of the EGR gas for a total volume of the intake manifold by using pressure variance inside the intake manifold, calculating pressure of the EGR gas by multiplying the pressure of the intake manifold and the ratio of the EGR gas, and converting the pressure of the EGR gas to a flow rate of the EGR gas.
    Type: Grant
    Filed: December 18, 2012
    Date of Patent: July 7, 2015
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Seungbum Kim, Jeong Nam Park