With Exhaust Gas Recirculation Patents (Class 60/605.2)
  • Patent number: 10132235
    Abstract: Methods and systems are provided for operating a split exhaust engine system that provides blowthrough air and exhaust gas recirculation to an intake passage via a first exhaust manifold and exhaust gas to an exhaust passage via a second exhaust manifold. In one example, the split exhaust engine system may include a first set of exhaust valves fluidly coupled to the exhaust passage, upstream of a turbocharger turbine, a first emission control device (ECD), and a second ECD disposed within the exhaust passage, the second ECD positioned downstream of the first ECD. The system may further include a second set of exhaust valves fluidly coupled to the intake passage and the exhaust passage, between the first ECD and the second ECD.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: November 20, 2018
    Assignee: Ford Global Technologies, LLC
    Inventors: Joseph Norman Ulrey, Daniel Paul Madison, Brad Alan Boyer
  • Patent number: 10125725
    Abstract: A turbocharged automotive system includes an internal combustion engine and a Long Route Exhaust Gas Recirculation system connected to an exhaust line of the engine. The LR-EGR system is equipped with a LR-EGR cooler, which is cooled by a LR-EGR coolant circuit receiving coolant from an engine coolant circuit. The turbocharged automotive system further includes a low temperature coolant circuit and a connecting element for connecting the LR-EGR coolant circuit with the low temperature coolant circuit bypassing the engine coolant circuit.
    Type: Grant
    Filed: January 23, 2017
    Date of Patent: November 13, 2018
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Cesare Maria Meano, Alberto Racca, Joaquin De La Morena
  • Patent number: 10125793
    Abstract: A centrifugal compressor which can be stably operated in a wide range by increasing an operating range on a low-flow-rate side and on a high-flow-rate side, with a simple structure of combining a recirculation flow path and a reverse swirling flow generation unit including fixed blades, without providing a complicated movable mechanism for a guide vane.
    Type: Grant
    Filed: February 22, 2013
    Date of Patent: November 13, 2018
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Isao Tomita, Byeongil An
  • Patent number: 10119501
    Abstract: Systems, apparatus, and methods are disclosed that include a divided exhaust engine configured to control an EGR fraction in the charge flow to the cylinders in response to an EGR fraction overshoot condition, an exhaust pressure change in the EGR loop, and/or a transient operating condition.
    Type: Grant
    Filed: April 26, 2016
    Date of Patent: November 6, 2018
    Assignee: Cummins Inc.
    Inventors: Marten H. Dane, Sudhanshu Talwar
  • Patent number: 10100722
    Abstract: A control method of a turbocharged engine includes: a bypass passage bypassing a compressor; and a bypass valve configured to open and close the bypass passage. The method includes: a compressor flow rate predicting step of predicting a flow rate of air flowing through the compressor after a predetermined time; a compressor pressure ratio detecting step of detecting a pressure ratio of the compressor; a surging determining step of determining whether or not surging occurs after the predetermined time, in reference to preliminary prepared surging determination data based on the compressor predicted flow rate and the compressor pressure ratio; and a bypass valve controlling step of opening the bypass valve when it is determined in the surging determining step that the surging occurs and closing the bypass valve when it is determined in the surging determining step that the surging does not occur.
    Type: Grant
    Filed: February 6, 2015
    Date of Patent: October 16, 2018
    Assignee: Mazda Motor Corporation
    Inventors: Takafumi Nishio, Masayoshi Higashio, Yugou Sunagare
  • Patent number: 10100788
    Abstract: An engine system for exhausting condensate water includes an intake line into which fresh air flows, an engine including a plurality of cylinders for generating driving torque by burning fuel, an exhaust line in which exhaust gas exhausted from the cylinders flows, a low-pressure exhaust gas recirculation system (LP-EGR) through which the exhaust gas flowing through the exhaust line is resupplied to the cylinder, and a turbocharger including a turbine rotated by the exhaust gas exhausted from the cylinder, a compressor for compressing external air and exhaust gas recirculation (EGR) gas by being rotated together with the turbine, and an exhaust pipe for exhausting condensate water to the outside, wherein the condensate water generated by the external air flows through the intake line and the EGR gas is recirculated by the LP-EGR.
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: October 16, 2018
    Assignee: HYUNDAI MOTOR COMPANY
    Inventors: Choo Saeng Choi, Han Sang Kim
  • Patent number: 10100785
    Abstract: A product may include a bearing housing in which a shaft may be supported by a bearing so that it may rotate. A compressor wheel may be disposed on the shaft. A compressor cover may be connected with the bearing housing, which may form a compressor body and may define a chamber within which the compressor wheel may rotate. A diffuser may extend radially outward from the chamber and may receive gas from the compressor wheel. An inlet may be provided to the compressor body, which may receive a supply of exhaust gas. An EGR distribution cavity may be defined within the compressor body and may extend around the shaft. An EGR inlet channel may extend into the bearing housing from the inlet to the EGR distribution cavity. An EGR passage may extend from the EGR distribution cavity to the diffuser.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: October 16, 2018
    Assignee: BorgWarner Inc.
    Inventors: Joseph Powell McHenry, Gordon Clark Jenks, Robert Malcolm Wallace
  • Patent number: 10094339
    Abstract: An improved exhaust gas recirculation (EGR) system comprises combustion chambers divided into a first portion and a second portion. An intake valve and an exhaust valve are associated with each combustion chamber. An intake manifold is in fluid communication with the combustion chambers through respective intake valves. A first exhaust manifold is in fluid communication with said first portion of combustion chambers through respective exhaust valves. A second exhaust manifold is in fluid communication with said second portion of combustion chambers through respective exhaust valves. An EGR exhaust valve is associated with each combustion chamber in said second portion. An EGR manifold is in fluid communication with each combustion chamber in said second portion through respective EGR exhaust valves and with said at least one intake manifold.
    Type: Grant
    Filed: August 26, 2014
    Date of Patent: October 9, 2018
    Assignee: WESTPORT POWER INC.
    Inventor: Philip C. Millward
  • Patent number: 10094269
    Abstract: A four-stroke reciprocating piston internal combustion engine is disclosed. The engine includes an even number of cylinders grouped into a first half and a second half. An exhaust gas turbocharger has a first turbine inlet and a second turbine inlet. Each of the cylinders has an intake duct with an intake opening, a first exhaust duct with a first exhaust opening, and a second exhaust duct with a second exhaust opening. The first half of cylinders is connected via the respective first exhaust ducts to the first turbine inlet and is connected via the second exhaust ducts to the second turbine inlet. The second half of cylinders is connected via the respective first exhaust ducts to the second turbine inlet and is connected via the respective second exhaust ducts to the first turbine inlet. The respective second exhaust openings have a larger diameter than the respective first exhaust openings.
    Type: Grant
    Filed: May 12, 2015
    Date of Patent: October 9, 2018
    Assignee: Daimler AG
    Inventors: Normann Freisinger, Juergen Friedrich
  • Patent number: 10094263
    Abstract: According to a device and a method for controlling an internal combustion engine, a control device (38) enables controllability of the internal combustion engine to be improved by preventing surging from occurring upon starting or stopping of the internal combustion engine, by opening a relief valve (28) as a turbine rotational speed reaches a surging rotational speed when the control device (38) causes a motor generator (32) to assist in rotation of the turbocharger (12) upon starting of a diesel engine body (11).
    Type: Grant
    Filed: August 7, 2015
    Date of Patent: October 9, 2018
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Yukio Yamashita, Yoshihisa Ono, Musashi Sakamoto, Takeshi Tsuji, Akihiro Miyanagi
  • Patent number: 10072590
    Abstract: A control device for diesel engine controls a diesel engine with a turbo charger that coaxially joins an intake compressor and an exhaust turbine, and drives the intake compressor with energy of exhaust gas which flows into the exhaust turbine to pressurize intake air, and a fresh air/secondary air supply device that supplies fresh air or secondary air to an exhaust passage upstream of the exhaust turbine. The control device for diesel engine includes a gas flow stagnation region determination means that determines whether engine operation conditions or a state of the turbo charger are/is in a gas flow stagnation region, and a fresh air/secondary air supply means that supplies fresh air or secondary air to the exhaust passage upstream of the exhaust turbine by the fresh air/secondary air supply device when the engine operation conditions or the state of the turbo charger are/is in a gas flow stagnation region.
    Type: Grant
    Filed: March 20, 2014
    Date of Patent: September 11, 2018
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Shigehisa Sano, Isshou Uehara
  • Patent number: 10054038
    Abstract: The invention relates to a combustion engine equipped with a dual supercharging system in which a mechanical compressor is driven by an electric motor. The method controls a combustion engine with the electric motor being controlled by determining a rotational speed setpoint for positive-displacement compressor using a supercharge volume filling model.
    Type: Grant
    Filed: October 21, 2013
    Date of Patent: August 21, 2018
    Assignee: IFP ENERGIES NOUVELLES
    Inventors: Thomas Leroy, Alexandre Chasse, Jonathan Chauvin
  • Patent number: 10041451
    Abstract: Methods and systems are provided for controlling a temperature of gases within a heat exchanger, a ratio of gases output by the heat exchanger, and selectively charging/discharging gases from the heat exchanger to one or both of an intake system or an exhaust system. In one example, a method may include controlling operation of an energy recovery device coupled to the heat exchanger in response to engine operating conditions, and increasing or decreasing flow of exhaust gas and/or compressed intake air into the heat exchanger in response to energy recovery device output.
    Type: Grant
    Filed: May 23, 2016
    Date of Patent: August 7, 2018
    Assignee: Ford Global Technologies, LLC
    Inventor: Xiaogang Zhang
  • Patent number: 10041448
    Abstract: Methods and systems are provided for reducing turbo lag in an engine system configured with a cylinder dedicated for exhaust gas recirculation and distinct turbines coupled to the dedicated EGR cylinder and remaining engine cylinders. An air-fuel ratio of combustion in the dedicated cylinder is adjusted responsive to a tip-in event by providing blow-through air and additional fuel based on the amount of heat required to spin up a turbine coupled to the dedicated cylinder and provide the requested boost pressure. The approach enables turbo lag to be reduced while providing high EGR at high boost conditions.
    Type: Grant
    Filed: June 17, 2014
    Date of Patent: August 7, 2018
    Assignee: Ford Global Technologies, LLC
    Inventor: Chris Paul Glugla
  • Patent number: 10024255
    Abstract: Methods and systems are provided for operating a split exhaust engine system that provides blowthrough air and exhaust gas recirculation to an intake passage via a first exhaust manifold and exhaust gas to an exhaust passage via a second exhaust manifold. In one example, a method may include decreasing gas flow from the first exhaust manifold to the intake passage, upstream of a compressor, where a first set of exhaust valves are exclusively coupled to the first exhaust manifold, in response to a condition of the compressor. Further, the method may include increasing gas flow from the first exhaust manifold to an exhaust passage coupled to a second exhaust manifold coupled to a second set of exhaust valves, in response to the decreasing gas flow.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: July 17, 2018
    Assignee: Ford Global Technologies, LLC
    Inventors: Joseph Norman Ulrey, Daniel Paul Madison, Brad Alan Boyer, Chris John Piper
  • Patent number: 10006388
    Abstract: An engine control apparatus controls an engine, by generating first and second instruction values to adjust an MAF of fresh air supplied to the engine and an MAP indicating a pressure of air supplied to the engine to respective target values, based on measured values of a first sensor which detects the MAF and a second sensor which detects the MAP, regardless of limiting conditions related to a totally closed or fully open state of an EGR and an VNT, switching a supplying destination of the measured values of the first and second sensors for a certain time after the generated first or second instruction value saturates, and generating the first and second instruction values to adjust the MAF and the MAP to the respective target values, based on the measured values of the first and second sensors, under the limiting conditions, when the switching occurs.
    Type: Grant
    Filed: October 3, 2014
    Date of Patent: June 26, 2018
    Assignee: FUJITSU LIMITED
    Inventor: Yuhei Umeda
  • Patent number: 9989021
    Abstract: The invention relates to an engine control valve (100), comprising a flap (112) rotatably mounted in a valve body (126) around an axis (114) separating said flap into a first part (112A) and a second part (112B), said flap (112) being able to cooperate with sealing means carried by the valve body (126) in a closed position to stop the flow of a fluid through said flap for which the first part (112A) of the flap (112) sealingly cooperates with first sealing means (122A) and the second part (112B) of the flap (112) sealingly cooperates with second sealing means (124B). According to the invention, the first sealing means (122A) and the second sealing means (124B) are mounted securely so as to slide along the valve body (126).
    Type: Grant
    Filed: August 24, 2015
    Date of Patent: June 5, 2018
    Assignee: Valeo Systemes de Controle Moteur
    Inventor: Grégory Hodebourg
  • Patent number: 9989029
    Abstract: A method for determining charge air mass flow rate comprises a turbocharger speed sensor with a closed loop observer that is based on a modeled turbocharger revolution rate. An open loop charge air mass flow rate is determined in a characteristic field stored in an engine controller and is corrected by the scaled difference between the measured and modeled turbocharger revolution rates. The corrected closed loop charge air mass flow is fed back to model the subsequent turbocharger revolution rate and to update the open loop charge air mass flow rate in the characteristic field.
    Type: Grant
    Filed: January 28, 2015
    Date of Patent: June 5, 2018
    Assignee: Ford Global Technologies, LLC
    Inventor: Simon Petrovic
  • Patent number: 9951656
    Abstract: The invention relates to a method for operating a gas turbine system, wherein the gas turbine system includes a compressor, a combustor, a heat recovery steam generator, a scrubber, a direct contact cooler. The method includes introducing the scrubbing fluid discharged from the scrubber into the direct contact cooler, contacting the scrubbing fluid in the direct contact cooler with the exhaust gas discharged from the heat recovery steam generator in order to remove a portion of nitrogen oxide therefrom; feeding the exhaust gas discharged from the direct contact cooler into the compressor. With the technical solution of the present invention, nitrogen oxide in the exhaust gas is reduced to a certain extent by means of used scrubbing fluid from the scrubber. This solution may improve the efficiency in reduction of nitrogen oxide with a simple and feasible manner.
    Type: Grant
    Filed: September 23, 2014
    Date of Patent: April 24, 2018
    Assignee: ANSALDO ENERGIA IP UK LIMITED
    Inventors: Wuyin Wang, Vasileios Stefanis, Julie Clavier, Mirco Colombo, Felix Guethe
  • Patent number: 9945332
    Abstract: One variation may include a method of controlling exhaust gas flow in an internal combustion engine system, and products and systems using same.
    Type: Grant
    Filed: October 14, 2013
    Date of Patent: April 17, 2018
    Assignee: BorgWarner Inc.
    Inventor: David B. Roth
  • Patent number: 9897030
    Abstract: Methods and systems are provided for accurately learning the zero point of an intake gas oxygen sensor during selected engine no-fueling conditions. The learned zero point is used to infer EGR flow and accordingly adjust EGR valve control. In addition, EGR valve leakage is diagnosed based on the zero point learned during a DFSO adaptation relative to a zero point learned during an idle adaptation.
    Type: Grant
    Filed: May 2, 2016
    Date of Patent: February 20, 2018
    Assignee: Ford Global Technologies, LLC
    Inventors: Timothy Joseph Clark, Gopichandra Surnilla, Matthew John Gerhart, Daniel Joseph Styles
  • Patent number: 9879597
    Abstract: Disclosed is a speed reduced driven turbocharger that utilizes a step-down roller that is coupled to a turbo shaft with a traction interface. Either a flat or a shaped traction interface can be used. The step-down roller mechanically actuates either a mechanical or hydraulic transmission, or can be mechanically coupled to an electric motor/generator.
    Type: Grant
    Filed: October 16, 2015
    Date of Patent: January 30, 2018
    Assignee: VanDyne Superturbo, Inc.
    Inventors: Jared William Brown, Tom Waldron, Ryan Sherrill
  • Patent number: 9874130
    Abstract: A vehicle internal combustion engine arrangement includes an internal combustion reciprocating piston engine, and an exhaust line capable of collecting exhaust gases from the engine, a waste heat recovery system carrying a working fluid in a loop, in which the working fluid is successively compressed, heated in a heat exchanger by at least one engine fluid, and expanded in a first expander, a first compressor located in the exhaust line and mechanically connected to the first expander of the waste heat recovery system.
    Type: Grant
    Filed: May 10, 2012
    Date of Patent: January 23, 2018
    Assignee: Volvo Truck Corporation
    Inventors: Marc Lejeune, Dimitri Lortet
  • Patent number: 9869246
    Abstract: A method for operating a gas turbine power plant, and a gas turbine power plant in which fresh air is delivered to a compressor inlet and is accelerated in the compressor inlet and a recirculated first exhaust gas substream is delivered into a region of the compressor inlet in which the fresh air is accelerated to an extent such that the difference between total pressure and static pressure in the fresh air is greater than or equal to a pressure difference which is required in order to suck a target mass flow of the recirculated first exhaust gas substream into the compressor inlet.
    Type: Grant
    Filed: August 25, 2014
    Date of Patent: January 16, 2018
    Assignee: ANSALDO ENERGIA SWITZERLAND AG
    Inventors: Eribert Benz, Jaan Hellat, Hans Wettstein, Robin Payne
  • 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: 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: 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: 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: 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: 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: 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