Exhaust Gas Cooled During Recirculation Patents (Class 123/568.12)
  • Patent number: 10288769
    Abstract: Provided is a weather forecasting system for predicting a weather phenomenon in a prediction target region. The weather forecasting system includes a storage unit and a first calculation unit. The storage unit stores wind-condition information and measured weather information. The wind-condition information is information obtained from an air observation system using Doppler LIDAR. The first calculation unit generates predicted weather information including presence of a local downpour, based on information related to wind convergence included in the wind-condition information and information related to instability of air included in the measured weather information.
    Type: Grant
    Filed: May 28, 2015
    Date of Patent: May 14, 2019
    Assignee: METROWEATHER CO., LTD.
    Inventor: Junichi Furumoto
  • Patent number: 10273908
    Abstract: An engine system may include an engine having an intake line flowing an intake gas supplied to the combustion chambers; an intake manifold; a throttle valve provided at a front of the intake manifold and controlling an air amount supplied to the combustion chamber; an electric supercharger provided at the throttle valve and including a motor and an electric compressor operated by the motor to supply the supercharged air to the combustion chamber; an exhaust gas processing device purifying an exhaust gas generated in the combustion chamber; and an exhaust gas recirculation device including a recirculation line branched from the downstream portion of the exhaust gas processing device and joined to the intake line of the upstream portion of the electric compressor, an EGR cooler mounted at the recirculation line, and an EGR valve mounted at a part where the recirculation line and the intake line are joined.
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: April 30, 2019
    Assignee: Hyundai Motor Company
    Inventors: Joowon Lee, Jong Il Park, Kwanhee Choi, Hyungbok Lee, Dong Hee Han, Hyun Jun Lim
  • Patent number: 10267200
    Abstract: A heat recovery component for an exhaust gas system comprises: an inlet; an outlet; a first branch conduit comprising a first inlet, a first inlet axis, a first outlet, and a heat exchanger; a second branch conduit parallel to the first branch conduit, separate and thermally separated from the first branch conduit and comprising a second inlet, a second inlet axis, and a second outlet; and a valve arranged at the first inlet and the second inlet. The valve comprises separate first and second valve flaps fixedly arranged on a shaft and extending in a plane defined by the first and second inlet axes and perpendicular to the first and second inlet axes. The first valve flap is arranged at an axial location on the shaft corresponding to the location of the first inlet, and the second valve flap is arranged at an axial location corresponding to the second inlet. The valve flaps are arranged angularly rotated relative to one another about the shaft.
    Type: Grant
    Filed: September 13, 2016
    Date of Patent: April 23, 2019
    Assignee: Bosal Emission Control Systems NV
    Inventors: Jean-Paul Hubert Janssens, Luk Dedene, Eric Frans Denis Hansenne
  • Patent number: 10260461
    Abstract: A low temperature cooling device applied to an internal combustion engine includes an EGR device, a low temperature coolant circuit, a prediction unit predicting whether an EGR cooler falls into a state where a cooling performance falls short according to at least one of an operating state of an internal combustion engine and an outside air environment while a control that dehumidifies an EGR gas by cooling the EGR gas in the EGR cooler is performed, and a control unit performing at least one of a first increase control that increases a flow rate of a coolant flowing into the EGR cooler, a second increase control that increases an air rate of a radiator fan cooling a radiator, and an inhibition control that inhibits the EGR gas from flowing back when the prediction unit predicts that the EGR cooler falls into the state where the cooling performance falls short.
    Type: Grant
    Filed: April 14, 2016
    Date of Patent: April 16, 2019
    Assignee: DENSO CORPORATION
    Inventors: Keitarou Minami, Masashi Miyagawa, Hideaki Ichihara
  • Patent number: 10247119
    Abstract: A system and method to perform bypass actuation detection includes alternating control of a bypass valve within an exhaust gas recirculation (EGR) system of a vehicle to direct flow of gas through a cooler module or a bypass module within the EGR system. The method also includes determining a position of an EGR valve that directs the gas into the EGR system, and verifying operation of the bypass valve based on the position of the EGR valve.
    Type: Grant
    Filed: October 23, 2017
    Date of Patent: April 2, 2019
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Luca Borgia, Giovanni Basso, Michele Meloni
  • Patent number: 10239383
    Abstract: A device and to a method are provided for using part of the heat given off by an internal combustion engine. A waste-heat-collecting housing surrounds at least part of an exhaust-gas manifold and/or at least part of an engine-side segment of an exhaust-gas system of the internal combustion engine. Air contained in the waste-heat-collecting housing is heated, and the heated air is used indirectly or directly to heat at least one of air that is introduced in a passenger compartment of the vehicle, cooling liquid of the internal combustion engine and oil in an oil circuit of the internal combustion engine. The waste-heat-collecting housing is similarly useable in a stationary apparatus having an internal combustion engine.
    Type: Grant
    Filed: August 8, 2016
    Date of Patent: March 26, 2019
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Maximilian Kuchler, Carsten Spengler, Ivo Weese
  • Patent number: 10221815
    Abstract: An exhaust gas recirculation (EGR) valve for a vehicle includes: a valve housing connected to an exhaust line, and provided with an inflow passage in which exhaust gas flows, a first outflow passage connected to an EGR line in communication with the inflow passage, a second outflow passage connected to a bypass line bypassing the EGR line, and a third outflow passage connected to an exhaust line connected to a turbocharger turbine; and a valve body selectively opening and closing the first and second outflow passages to adjust an opening ratio of each of first and second outflow passages, and allowing the third outflow passage to remain in an open state.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: March 5, 2019
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventor: Seok Beom Jin
  • Patent number: 10215086
    Abstract: The invention relates to an exhaust gas recirculation system for an internal combustion engine, and to a method for operating an exhaust gas recirculation system of this type. Here, the exhaust gas recirculation system has an air feed line, an exhaust gas line, an exhaust gas recirculation line which leads from an EGR branch-off point in the exhaust gas line to an EGR feed-in point in the air feed line, and a throttle valve within the air feed line downstream of the EGR feed-in point.
    Type: Grant
    Filed: June 16, 2015
    Date of Patent: February 26, 2019
    Assignee: FEV Europe GmbH
    Inventor: Matthias Thewes
  • Patent number: 10208716
    Abstract: An internal combustion engine system includes a first EGR valve to control flow in a first flow path, and a second EGR valve to control flow in a second flow path. A temperature sensor is disposed in the exhaust gas feedstream upstream of the exhaust purifying device, and a controller is in communication with the internal combustion engine and the temperature sensor and is operatively connected to the first and second EGR valves. The controller executes a routine to monitor the temperature of the exhaust gas feedstream upstream of the exhaust purifying device and control the first valve to control flow of exhaust gas to the air intake system via the first flow path and control the second valve to control flow of exhaust gas to the air intake system via the second flow path based upon the temperature of the exhaust gas feedstream upstream of the exhaust purifying device.
    Type: Grant
    Filed: December 14, 2016
    Date of Patent: February 19, 2019
    Assignee: GM Global Technology Operations LLC
    Inventors: Armando Mogavero, Antonio Rodio
  • Patent number: 10208715
    Abstract: A power train system includes an exhaust manifold having an exhaust flow and a control valve for releasing exhaust gas, and layered material defining an integrated engine cylinder head and an exhaust gas recirculator, connected to the exhaust flow and the valve, including a tubular inlet defining a plurality of branches around the cylinder head and having a plurality of nozzles extending into cavities of intake ports of the cylinder head. Each of the branches surrounding an exterior surface of one of the intake ports such that there is no seal between the recirculator and the cylinder head.
    Type: Grant
    Filed: January 15, 2018
    Date of Patent: February 19, 2019
    Assignee: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Christopher Donald Wicks, James Henry Malo
  • Patent number: 10196960
    Abstract: A cooling system selectively cools an engine and an exhaust gas recirculation (EGR) component of the engine. The cooling system includes a plumbing system with a plurality of flow branches, including an engine branch, an EGR branch, and a feed branch. The engine branch defines an engine flow passage through which the coolant flows to cool the engine. The EGR branch defines an EGR flow passage through which the coolant flows to cool the EGR component. The feed branch defines a feed flow passage. The cooling system has a first operating configuration in which the EGR flow passage is configured to receive coolant flow from the engine flow passage. The cooling system has a second operating configuration in which the EGR flow passage is configured to receive coolant flow from the feed flow passage instead of the engine flow passage.
    Type: Grant
    Filed: March 9, 2017
    Date of Patent: February 5, 2019
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: William Saindon, Michele Bilancia
  • Patent number: 10196964
    Abstract: A charge air cooler includes a first, second, and third heat exchange sections. In the first heat exchange section, heat is transferred from a first flow of liquid coolant to a refrigerant in order to cool the first flow of liquid coolant from a first temperature to a second temperature. In the second heat exchange section, heat is transferred from a flow of charge air to a second flow of liquid coolant in order to cool the flow of charge air from a third temperature to a fourth temperature. In the third heat exchange section, heat is transferred from the flow of charge air to the first flow of liquid coolant in order to cool the flow of charge air from the fourth temperature to a fifth temperature, the fifth temperature being less than the first temperature.
    Type: Grant
    Filed: June 6, 2016
    Date of Patent: February 5, 2019
    Assignee: MODINE MANUFACTURING COMPANY
    Inventors: Jason Braun, Frank Lippke, Steven Meshenky, Ashutosh Patil, Mitchell Crawford, Kyle Shisler
  • Patent number: 10167821
    Abstract: An engine system having an exhaust gas recirculation apparatus, the engine system including an engine including a plurality of combustion chambers that generates a driving power by combusting fuel, an intake line into which intake gas to be supplied into the combustion chamber flows, an exhaust line through which exhaust gas discharged from the combustion chamber flows, a turbocharger including a turbine provided in the exhaust line and rotated by exhaust gas discharged from the combustion chamber, and a compressor provided in the intake line and rotated in conjunction with the rotation of the turbine and compressing outside air, an EGR apparatus including an EGR line that branches off from the exhaust line at a rear end of the turbocharger and merges into the intake line, and an EGR cooler disposed in the EGR line for cooling exhaust gas flowing through the EGR line, a waste gate valve installed in an exhaust bypass line, which branches off from a front end of the turbine and merges into a rear end of the tu
    Type: Grant
    Filed: October 6, 2016
    Date of Patent: January 1, 2019
    Assignee: HYUNDAI MOTOR COMPANY
    Inventor: Choo Saeng Choi
  • Patent number: 10138790
    Abstract: A heat recovery device comprises a coolant path segment and a thermal expansion bracket. The thermal expansion bracket has two end portions supported by the coolant path segment and a middle portion supported by an exhaust gas path segment that is spaced a distance away from the coolant path segment. The thermal expansion bracket is configured to deform in response to an increase in temperature to increase the distance and decrease heat transfer between the segments.
    Type: Grant
    Filed: November 8, 2016
    Date of Patent: November 27, 2018
    Assignee: FORD GLOBAL TECHNOLOGIES, LLC
    Inventor: Jian Li
  • Patent number: 10124647
    Abstract: Methods and systems are provided for controlling coolant flow through parallel branches of a coolant circuit including an AC condenser and a charge air cooler. Flow is apportioned responsive to an AC head pressure and a CAC temperature to reduce parasitic losses and improve fuel economy. The flow is apportioned via adjustments to a coolant pump output and a proportioning valve.
    Type: Grant
    Filed: September 27, 2016
    Date of Patent: November 13, 2018
    Assignee: Ford Global Technologies, LLC
    Inventors: David Karl Bidner, Hugh Hamilton, James C. Rollinson
  • Patent number: 10107236
    Abstract: An exhaust gas recirculation system is provided in a motor vehicle to pass exhaust gas out of an exhaust tract into an intake tract of a motor vehicle, said system having a cooler device and a bypass duct, wherein the bypass duct is bounded by a double wall, which can be filled with a gas to thermally insulate the bypass duct and with a liquid to cool or heat the bypass duct. A method for controlling the temperature of a bypass duct of the exhaust gas recirculation system is furthermore provided.
    Type: Grant
    Filed: January 12, 2017
    Date of Patent: October 23, 2018
    Assignee: Ford Global Technologies, LLC
    Inventors: Andreas Kuske, Christian Winge Vigild, Franz Arnd Sommerhoff, Joerg Kemmerling, Helmut Matthias Kindl, Vanco Smiljanovski, Hanno Friederichs
  • Patent number: 10100787
    Abstract: An exhaust gas recirculation (EGR) cooler for a vehicle may include an intake pipe through which EGR gas flows; a core unit having an inlet connected to the intake pipe and may have a plurality of channels into which EGR gas flows through the intake pipe; a cooler housing that covers the core unit and through which cooling water flows to cool the cover unit; and a water jacket that covers the intake pipe, is connected to the cooler housing, and through which the cooling water flows to cool the intake pipe.
    Type: Grant
    Filed: December 6, 2016
    Date of Patent: October 16, 2018
    Assignee: Hyundai Motor Company
    Inventor: Seok Beom Jin
  • Patent number: 10093147
    Abstract: Methods and systems are provided for controlling coolant flow through parallel branches of a coolant circuit including an AC condenser and a charge air cooler. Flow is apportioned responsive to an AC head pressure and a CAC temperature to reduce parasitic losses and improve fuel economy. The flow is apportioned via adjustments to a coolant pump output and a proportioning valve.
    Type: Grant
    Filed: September 27, 2016
    Date of Patent: October 9, 2018
    Assignee: Ford Global Technologies, LLC
    Inventors: David Karl Bidner, James C. Rollinson, Hugh Hamilton, Alan Richardson, Ravi Gopal
  • Patent number: 10087893
    Abstract: A water-cooled EGR cooler is to be supplied with exhaust gas from an exhaust line and is to re-circulate the cooled exhaust gas to an intake line. A housing has an exhaust inlet, an exhaust outlet, a coolant inlet, and a coolant outlet. A heat exchange member is disposed in the housing and includes exhaust gas passages from the exhaust inlet to the exhaust outlet at a predetermined interval and also includes a coolant passage through which coolant can flow from the coolant inlet to the coolant outlet between the exhaust gas passages. A pipe member includes a bypass passage formed between an upper surface of the heat exchange member and an inside upper surface of the housing to allow the exhaust gas to bypass the heat exchange member and flow between the upper surface of the heat exchange member and the coolant outlet.
    Type: Grant
    Filed: December 7, 2016
    Date of Patent: October 2, 2018
    Assignee: Hyundai Motor Company
    Inventors: Sung Il Yoon, Dong Young Lee, Seogjin Yoon
  • Patent number: 10082114
    Abstract: An Exhaust Gas Recirculation (EGR) system for an engine system is provided. The EGR system includes an exhaust gas treatment module positioned upstream of an EGR cooler with respect to an exhaust gas flow direction. The exhaust gas treatment module is in selective fluid communication with an exhaust gas line of an engine. The EGR system also includes a bypass line in selective fluid communication with the exhaust gas line of the engine. The EGR system further includes a valve arrangement configured to route an exhaust gas flow through at least one of the exhaust gas treatment module and the bypass line.
    Type: Grant
    Filed: February 12, 2016
    Date of Patent: September 25, 2018
    Assignee: Progress Rail Locomotive Inc.
    Inventors: Keith E. Moravec, Sudarshan K. Loya, Michael B. Goetzke, Reddy Pocha Siva Sankara, Steven D. Johnson
  • Patent number: 10060339
    Abstract: A system and methods for routing condensate collected in a heat exchanger reservoir to either an air intake system 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, condensate is routed to a first position along the engine air intake system in a first mode of operation, and a second position upstream of the catalyst along the engine exhaust in a second mode of operation, and a third position downstream of the catalyst along the engine exhaust in a third mode of operation. When substantially no contaminates are detected, the condensate may be routed into the engine exhaust upstream of the catalyst in order to cool the catalyst.
    Type: Grant
    Filed: February 16, 2016
    Date of Patent: August 28, 2018
    Assignee: Ford Global Technologies, LLC
    Inventors: Christopher Donald Wicks, Karen Elizabeth Maceroni, Mark Michael Madin
  • Patent number: 10036337
    Abstract: Various systems and methods are provided for exhaust gas recirculation. In one example, an exhaust gas recirculation (EGR) system includes an EGR passage coupling an engine exhaust system to an engine intake system, a first EGR cooler positioned in the EGR passage, the first EGR cooler configured to cool EGR with a first fluid, and a second EGR cooler positioned in the EGR passage downstream of the first EGR cooler, the second EGR cooler configured to cool EGR with a second fluid.
    Type: Grant
    Filed: March 28, 2016
    Date of Patent: July 31, 2018
    Assignee: General Electric Company
    Inventors: Shrinivas Govind, Jayesh Jain, Pushkar Haresh Sheth
  • Patent number: 10030615
    Abstract: A cooling system of a motor vehicle may include a coolant circuit including an exhaust-gas recirculation path and an exhaust-gas recirculation cooler arranged therein. A pressure detection device may be provided for detecting a coolant pressure in the coolant circuit. An actuating device may be connected communicatively to the pressure deduction device. A valve device may be connected communicatively to the actuating device and configured to control an exhaust-gas stream passing into the cooler. The actuating device may be configured to at least partially close the valve device and reduce the exhaust-gas stream flowing to the cooler in response to the pressure detection device detecting a predefined pressure drop.
    Type: Grant
    Filed: June 9, 2016
    Date of Patent: July 24, 2018
    Assignee: Mahle International GmbH
    Inventors: Ulrich Maucher, Eberhard Pantow
  • Patent number: 10024268
    Abstract: A cylinder cooling apparatus for an engine may include a plurality of intake ports disposed in a cylinder head and communicating with a corresponding plurality of cylinders, a water supply line extending inside from a side of the cylinder head and communicating with the intake ports, and a water pump supplying water to the intake ports through the water supply line.
    Type: Grant
    Filed: October 27, 2016
    Date of Patent: July 17, 2018
    Assignee: Hyundai Motor Company
    Inventors: Jong Hyuck Kim, Yoon Han Eo, Eun Ho Lee
  • Patent number: 10018162
    Abstract: A driving device for driving a vehicle includes an internal combustion engine, a feed line for feeding combustion air to the internal combustion engine, a discharge line for discharging exhaust gases from the internal combustion engine, a charge air cooler that is arranged in the feed line for cooling the combustion air, and a recirculation line branching off the discharge line for recirculating the exhaust gas from the discharge line into the feed line. The recirculation line includes a bypass line that the exhaust gas can be fed to the internal combustion engine through the charge air cooler and/or bypassing the charge air cooler.
    Type: Grant
    Filed: July 7, 2016
    Date of Patent: July 10, 2018
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Lutz Kilian Cloos, Claus Juergen Glahn
  • Patent number: 10018097
    Abstract: Methods and systems are provided for exhaust flow in an engine system including a split-exhaust manifold for expediting exhaust catalyst light-off and engine warm-up while reducing condensation in the engine system. In one example, a method may include, before exhaust catalyst light-off, flowing all or more exhaust gases, via a first exhaust valve and a first exhaust manifold, to an exhaust catalyst by passing a heat exchanger. Further, after light-off but before engine coolant warms up to a threshold temperature, all or more exhaust may be delivered to the heat exchanger, via a second exhaust valve and a second different manifold, prior to flowing to the exhaust catalyst; and exhaust gas recirculation may not be provided until the coolant reaches the threshold temperature to reduce condensation.
    Type: Grant
    Filed: February 25, 2016
    Date of Patent: July 10, 2018
    Assignee: Ford Global Technologies, LLC
    Inventors: Daniel Joseph Styles, Gregory Patrick McConville, Karen Evelyn Bevan
  • Patent number: 10012169
    Abstract: A method for diagnosing a component in a gas-routing system of a supercharged combustion engine having an electrically operable compressor, the method including activating the electrically operable compressor after the combustion engine has been shut off, opening a flow path through the gas-routing system, measuring a state variable in the gas-routing system, and detecting a fault of the component as a function of the measured state variable.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: July 3, 2018
    Assignee: ROBERT BOSCH GMBH
    Inventors: Johannes-Joerg Rueger, Florian Schmitt, Udo Schulz
  • Patent number: 10006337
    Abstract: In one aspect, a method for detecting and diagnosing a coolant leak of an engine may include diagnosing a coolant leak of the engine based on a low frequency pressure response of a measured engine coolant pressure. In another aspect, an engine system (e.g., for a vehicle) includes an engine and a coolant system operatively connected to the engine. The coolant system includes a coolant reserve and a coolant pump between the engine and the coolant reserve. The engine system also includes a coolant pressure sensor to measure coolant pressure, and a controller configured to measure an engine coolant pressure and diagnose a coolant leak of the coolant system based on a low frequency pressure response of the measured engine coolant pressure.
    Type: Grant
    Filed: September 21, 2015
    Date of Patent: June 26, 2018
    Assignee: General Electric Company
    Inventors: Jason M. Strode, Bret Dwayne Worden, Milan Karunaratne
  • Patent number: 10006311
    Abstract: A method of recovering waste heat includes pressurizing a flow of working fluid and transferring heat from a hot gas stream to the flow of working fluid in at least two successively arranged heat transfer sections. At least some of the working fluid is converted to a superheated vapor by the transfer of heat, and passes through an expander to recover useful work. A portion of the flow of working fluid is directed along a branch after having passed through at least one of the heat transfer sections, and bypasses the expander and at least one of the heat transfer sections before being recombined with the working fluid that has passed through the expander. The total flow rate of working fluid can be adjusted to regulate the temperature of the hot gas stream downstream of the heat transfer sections, and the amount of fluid that bypasses along the branch can be adjusted to regulate the temperature of the superheated vapor.
    Type: Grant
    Filed: January 28, 2016
    Date of Patent: June 26, 2018
    Assignee: Modine Manufacturing Company
    Inventors: JianMin Yin, Eric P. Steinbach
  • Patent number: 9982610
    Abstract: A control method of a boosting apparatus includes: driving the boosting apparatus according to driving maps pre-input to a controller, judging driving conditions of an engine, selecting a driving map pre-input to the controller and reflecting the driving conditions in the selected driving map, correcting the driving maps of the boosting apparatus based on the selected driving map and driving the boosting apparatus based on the corrected driving maps, and confirming whether variations in operating amounts of the boosting apparatus are generated and, when the variations are confirmed, correcting the operating amounts of the boosting apparatus and reflecting the corrected operating amounts in the driving maps. In particular, the controller controls an EGR valve according to driving conditions through operation of the boosting apparatus and thus controls the amount of EGR gas supplied to the engine.
    Type: Grant
    Filed: May 16, 2016
    Date of Patent: May 29, 2018
    Assignee: HYUNDAI MOTOR COMPANY
    Inventors: Jung Sub Lee, Young Ho Kim, Hyo Sang Cho, Seung Eun Yu
  • Patent number: 9982608
    Abstract: The purpose of the present invention is to provide an engine with reforming cylinders which are fuel reforming devices capable of supplying a reformed fuel according to the outputs of outputting cylinders. The engine is provided with the outputting cylinders for burning the fuel and the reforming cylinders which are the fuel reforming devices for reforming the fuel through the reciprocating motions of pistons. The amount of reformed fuel supplied to all the outputting cylinders is changed according to the outputs of the outputting cylinders while maintaining the amount of supplied fuel and the amount of suctioned gas, which are supplied into one reforming cylinder.
    Type: Grant
    Filed: August 31, 2015
    Date of Patent: May 29, 2018
    Assignee: YANMAR CO., LTD.
    Inventor: Go Asai
  • Patent number: 9964076
    Abstract: A cooling system for an internal combustion engine is disclosed which includes a coolant pump for circulating a coolant in a coolant circuit and a radiator disposed in the coolant circuit. A charged-air cooler is disposed in the coolant circuit downstream of the radiator, and a long-route exhaust-gas-recirculation cooler disposed in the coolant circuit downstream of the charged-air cooler and upstream of the radiator.
    Type: Grant
    Filed: June 3, 2015
    Date of Patent: May 8, 2018
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Joaquin De La Morena, Cesare Maria Meano
  • Patent number: 9957876
    Abstract: Methods and systems are provided for controlling the temperature and ratio of gases within a gas mixing tank reservoir and selectively charging/discharging gases from the reservoir to one or both of an intake system or an exhaust system. In one example, a method (or system) may include storing exhaust gas and/or compressed intake air into a gas mixing reservoir, and increasing or decreasing flow of coolant to the reservoir based on engine operating conditions. The stored gases may be discharged to an intake system and/or an exhaust system based on requests from a controller, and coolant flow to the reservoir may be adjusted based on the composition of the gases stored within the reservoir.
    Type: Grant
    Filed: May 23, 2016
    Date of Patent: May 1, 2018
    Assignee: Ford Global Technologies, LLC
    Inventor: Xiaogang Zhang
  • Patent number: 9951701
    Abstract: Various methods and systems are provided for estimating fresh intake air flow. In one example, a system comprises an engine having an intake manifold to receive fresh intake air and an exhaust gas recirculation (EGR) system to supply EGR to the intake manifold, where flow of EGR through the EGR system is controlled by one or more exhaust valves. The system further includes a controller configured to adjust a position of the one or more exhaust valves based on an estimated fresh intake air flow rate, where during a first set of operating conditions, the fresh intake air flow rate is estimated based on a total gas flow rate into the engine and further based on a current position of the one or more exhaust valves, intake manifold pressure, air-fuel ratio, and fuel flow to one or more cylinders of the engine.
    Type: Grant
    Filed: September 22, 2014
    Date of Patent: April 24, 2018
    Assignee: General Electric Company
    Inventors: Luke Michael Henry, James Robert Mischler, David Zielinski, Samuel Lyle Hazen, Ralph Wheeland
  • Patent number: 9951776
    Abstract: A compressor intake mixer system for internal combustion gas engines having a compressed charge bypass system comprises a bypass charge and fuel pre-mixer connected in line with the charge bypass system to reduce pressure gradient between the high pressure bypass charge and the low pressure fuel. A single volume main mixer is connected to the compressor inlet downstream of the pre-mixer to mix the flow of premixed charge and air and provide a mixed gas to the compressor inlet. Thus a need for a separate volume for a fuel mixer and a bypass mixer is eliminated and a single volume is provided at the compressor inlet. The locational constraint of necessarily locating the volumes at the compressor inlet is also obviated by providing a pre-mixer.
    Type: Grant
    Filed: August 31, 2011
    Date of Patent: April 24, 2018
    Assignee: CUMMINS INC.
    Inventor: Prasad Ramdas Khedekar
  • Patent number: 9932939
    Abstract: A dedicated exhaust gas recirculation (“D-EGR”) system of an internal combustion engine can include an exhaust recirculation passage, and a rotary valve. The recirculation passage can be coupled for fluid communication with an outlet of a D-EGR combustion chamber. The rotary valve can have a housing and a rotor. The housing can have a valve inlet coupled to the recirculation passage to receive exhaust gases from the recirculation passage, and a valve outlet coupled to an intake passage of the ICE to deliver exhaust gases from the rotary valve to the intake passage. The rotor can be disposed within the housing and rotatable relative to the housing. The rotor and housing can define a plurality of valve chambers.
    Type: Grant
    Filed: February 15, 2016
    Date of Patent: April 3, 2018
    Assignees: DENSO International America, Inc., DENSO CORPORATION
    Inventors: Mark Williams, Robert Cardno
  • Patent number: 9903320
    Abstract: A control system is applied to an internal combustion engine. The internal combustion engine includes an electric compressor provided in an intake passage, a bypass passage which bypasses the electric compressor, a low pressure EGR passage which connects a section of the intake passage, which is positioned upstream more than the electric compressor, and an exhaust passage, and a low pressure EGR valve provided in the low pressure EGR passage. An ECU, when a predetermined pressure accumulation condition where a gas flow rate of a specific place of the intake passage has become equal to or less than a predetermined amount, is satisfied, first executes a pressure accumulation control where the bypass valve is closed and the electric compressor is activated, and then, when an opening condition is satisfied during an execution of the pressure accumulation control, opens the low pressure EGR valve and opens the bypass valve.
    Type: Grant
    Filed: November 10, 2014
    Date of Patent: February 27, 2018
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Yusuke Takasu
  • Patent number: 9897388
    Abstract: A cooler having a first component made of at least one of steel, stainless steel, plastic and ceramic. A second component may be made of aluminum, wherein the two components may be connected to each other in a connecting area via a friction stir weld joint.
    Type: Grant
    Filed: October 3, 2011
    Date of Patent: February 20, 2018
    Assignee: Mahle International GmbH
    Inventors: Jörg Dittmann, Richard Jaiβle
  • Patent number: 9869280
    Abstract: A mixer valve of an internal combustion engine of a motor vehicle has a drive device with a respective drive pinion and a control disc for driving two flaps. A single servomotor for driving the drive pinion is arranged in a corner region of an exhaust gas duct and of an intake duct.
    Type: Grant
    Filed: April 11, 2013
    Date of Patent: January 16, 2018
    Assignee: Continental Automotive GmbH
    Inventor: Daniel Iosif Maxim
  • Patent number: 9845750
    Abstract: Methods and systems are provided for exhaust gas heat recovery at a split exhaust gas heat exchanger. Exhaust gas may flow in both directions through an exhaust bypass passage and the heat exchanger coupled to the bypass passage. Warm or cold EGR may be delivered from the exhaust passage to the engine intake manifold and heat from the exhaust gas may be recovered at the heat exchanger.
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: December 19, 2017
    Assignee: Ford Global Technologies, LLC
    Inventors: Daniel Joseph Styles, Michael James Uhrich
  • Patent number: 9845749
    Abstract: Methods and systems are provided for determining changes in a flow area of an exhaust gas recirculation (EGR) valve for EGR flow estimates due to soot accumulation on the EGR valve. In one example, a method includes indicating soot accumulation on the EGR valve based on a difference in EGR flow estimated with an intake oxygen sensor and with a pressure sensor coupled across the EGR valve. The determination of the difference of the EGR flow estimates may occur when the engine is not boosted.
    Type: Grant
    Filed: February 6, 2015
    Date of Patent: December 19, 2017
    Assignee: Ford Global Technologies, LLC
    Inventors: Gopichandra Surnilla, James Alfred Hilditch, Imtiaz Ali, Daniel Joseph Styles, Timothy Joseph Clark
  • Patent number: 9835389
    Abstract: A plurality of upper fins and a plurality of lower fins are each provided in an EGR passage so as to be adjacent to each other across a predetermined space in a direction perpendicular to an exhaust-gas flow direction. The upper fins and the lower fins are gradually narrowed in width toward their respective projection directions, so that both sides thereof in their width direction have inclined surfaces. A tilt angle of the inclined surfaces of the lower fins is made larger than a tilt angle of the inclined surfaces of the upper fins.
    Type: Grant
    Filed: June 8, 2015
    Date of Patent: December 5, 2017
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Shinichi Kobayashi
  • Patent number: 9828955
    Abstract: Systems and methods for increasing EGR gas temperature for an engine that includes at least one dedicated EGR cylinder. The dedicated EGR cylinder may provide exhaust gas to engine cylinders and the exhaust gas does not include exhaust gases from cylinders other than the dedicated EGR cylinder. The dedicated EGR cylinder may allow the engine to operate at higher EGR dilution levels.
    Type: Grant
    Filed: November 18, 2016
    Date of Patent: November 28, 2017
    Assignee: Ford Global Technologies, LLC
    Inventors: James Alfred Hilditch, Michael Howard Shelby, Michael Damian Czekala, Gregory Patrick McConville
  • Patent number: 9816424
    Abstract: A system for controlling exhaust heat recovery and an exhaust gas recirculation system (EGR), the system includes an exhaust gas post processing device mounted on an outlet of an engine exhaust manifold, an exhaust gas purifying device, an exhaust heat recovery chamber having an exhaust gas pick-up space and further having a structure in which a cooling water flow passage is formed on the outside, and further being mounted on the outlet of the exhaust gas post processing device, a bypass valve mounted on an outlet of the exhaust heat recovery, and an EGR valve mounted on the exhaust heat recovery chamber to be opened and closed to circulate the exhaust gas in the exhaust gas pick-up space to an EGR cooler and an engine intake manifold.
    Type: Grant
    Filed: December 4, 2015
    Date of Patent: November 14, 2017
    Assignee: HYUNDAI MOTOR COMPANY
    Inventor: Han Sang Kim
  • Patent number: 9791215
    Abstract: A heat exchanger (1) for gases, in particular for the exhaust gases of an engine includes a bundle of tubes (2) arranged inside a casing (3) defining a gas inlet (4) and outlet (5). The tubes (2) being intended for the circulation of the gases with a view to exchanging heat with a coolant, and the tubes (2) being distributed in at least one column having a plurality of rows defining a plurality of spaces (8) between the rows, and including a coolant inlet pipe (9) and outlet pipe (10) connected to the casing (3). The exchanger (1) includes a bypass channel (11) incorporated into the casing (3) capable of connecting the spaces (8) defined between the rows of tubes (2) located in front of the channel (11) with one of the coolant pipes (10), in such a way as to improve the distribution of the coolant.
    Type: Grant
    Filed: December 18, 2012
    Date of Patent: October 17, 2017
    Assignee: VALEO TERMICO, S.A.
    Inventors: Juan Carlos De Francisco Moreno, Carlos Rodrigo Marco, Yolanda Bravo Rodriguez, Fernando Puertolas Sanchez
  • Patent number: 9790848
    Abstract: A marine engine includes a first turbocharger, a first intercooler, a second turbocharger, a second intercooler, an oil filter, and a top cover. The first turbocharger and the second turbocharger supply air by using an exhaust gas. The first intercooler and the second intercooler cool gases having passed through the turbochargers, respectively. The top cover is a cover arranged in an upper region of the marine engine. These devices are arranged so as not to overlap one another when seen in the thickness direction of the top cover.
    Type: Grant
    Filed: January 24, 2013
    Date of Patent: October 17, 2017
    Assignee: YANMAR CO., LTD.
    Inventors: Mitsuhiro Hibino, Kazuki Maetani
  • Patent number: 9790899
    Abstract: An exhaust gas cooler and method of cooling are provided. The exhaust gas cooler includes an inlet and outlet manifold and respectively including inlet and outlet openings and respectively positioned at a first and second end of the cooler. The exhaust gas cooler includes a plurality of conduits coupled to the inlet and outlet manifold and also includes at least one side wall coupled to the inlet and outlet manifold around the plurality of conduits, such that the plurality of conduits are disposed in a region between the at least one side wall and the inlet and outlet manifold. The at least one sidewall includes a first coolant inlet opening and a first coolant outlet opening each adjacent a first end of the exhaust gas cooler, a second coolant inlet opening, and a second coolant outlet opening. The exhaust gas cooler includes a bypass conduit positioned outside of the region.
    Type: Grant
    Filed: May 2, 2014
    Date of Patent: October 17, 2017
    Assignee: Cummins Inc.
    Inventors: Thomas Lee Mack, Long K. Hwang
  • Patent number: 9784177
    Abstract: An engine system may include main exhaust ports fluidly communicated with each combustion chamber, main exhaust valves opening and closing each main exhaust port, a main exhaust manifold connected with the main exhaust ports, scavenge exhaust ports fluidly communicated with the each combustion chamber, scavenge valves opening and closing the each scavenge exhaust port, a scavenge manifold connected with the scavenge exhaust ports, in which at least a part of an exhaust gas passing through the scavenge manifold is re-circulated to the combustion chamber to be burned.
    Type: Grant
    Filed: July 28, 2015
    Date of Patent: October 10, 2017
    Assignee: Hyundai Motor Campany
    Inventors: Byong Young Choi, Soo Hyung Woo, Seung Kook Han, Byeong Seok Lee, Wootae Kim
  • Patent number: 9784465
    Abstract: A portable air cooling system and method for providing cooled air for mobile use for a user including in a golf cart has an insulated portable casing, an air cooling assembly, a primary air blower fan, a secondary air blower fan, a computer control unit, switches including variable resistance switches, a portable power source including batteries and solar panels, and a secondary casing for housing the portable power source.
    Type: Grant
    Filed: August 4, 2015
    Date of Patent: October 10, 2017
    Inventor: Sivathanu B. Kumar
  • Patent number: 9777680
    Abstract: A heat exchanger that transfers heat from an exhaust gas flow to a liquid coolant includes a first heat exchange section and a second heat exchange section located adjacent the first heat exchange section. The first heat exchange section is located within a first housing that at least partially encloses a first fluid volume. The second heat exchange section is located within a second housing that at least partially encloses a second fluid volume. A first plurality of heat exchange tubes traverses the first heat exchange section, and a second plurality of heat exchange tubes traverses the second heat exchange section. An exhaust gas flow path of the heat exchanger includes the first fluid volume and the interiors of the second plurality of heat exchange tubes. A coolant flow path of the heat exchanger includes the second fluid volume and the interiors of the first plurality of heat exchange tubes.
    Type: Grant
    Filed: September 26, 2016
    Date of Patent: October 3, 2017
    Assignee: Modine Manufacturing Company
    Inventors: David Janke, Viswanath Setty, Jonathan Wattelet, Thomas Grotophorst