Exhaust Gas Cooled During Recirculation Patents (Class 123/568.12)
  • 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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
  • Patent number: 9771898
    Abstract: A mixing valve of an internal combustion engine of a motor vehicle includes: a flap arranged in a suction channel and a flap arranged in an exhaust gas channel. One single flap of the two flaps is drivable via a gear pair with non-round or eccentric gears. The drive of the other flap has lost motion, whereby the closing movements of the flaps can be formed in a particularly free manner with only a single actuating motor.
    Type: Grant
    Filed: April 30, 2013
    Date of Patent: September 26, 2017
    Assignee: Continental Automotive GmbH
    Inventor: Daniel Iosif Maxim
  • Patent number: 9759118
    Abstract: The present invention is a compact device for exhaust gas management in an EGR (Exhaust Gas Recirculation) system configured for occupying a smaller space with respect to the space commonly occupied by a set of elements present in an EGR system, which device is suitable for being coupled to a PF or DPF filter (PF is the abbreviation for particulate filter and DPF is the abbreviation for diesel particulate filter), whichever is appropriate.
    Type: Grant
    Filed: March 18, 2014
    Date of Patent: September 12, 2017
    Assignee: BorgWarner Emissions Systems Spain, S.L.U.
    Inventors: Iago Gonzalez Tabares, Xoan Xose Hermida Dominguez
  • Patent number: 9745886
    Abstract: Various methods and systems are provided for adjusting flow resistances in an engine cooling system. In one example, a method for an engine includes adjusting a first resistance of a radiator main return line to be greater than a second resistance of a sub-cooled return line in response to an engine speed below a threshold speed, the sub-cooled return line arranged in parallel with the radiator main return line in an engine cooling system.
    Type: Grant
    Filed: August 7, 2014
    Date of Patent: August 29, 2017
    Assignee: General Electric Company
    Inventors: Jared Davis Vaughn, Gregory Alan Marsh
  • Patent number: 9732709
    Abstract: Starting an internal combustion engine may be difficult as a consequence of the operating conditions of the engine. Even after the engine has started, it may take a long period of time for the engine to reach operating temperatures. In the present disclosure, starting difficulty is expected for an engine with an exhaust gas recirculation system, before starting the engine an exhaust gas aftertreatment device is heated to warm residual air within the exhaust gas system.
    Type: Grant
    Filed: May 21, 2013
    Date of Patent: August 15, 2017
    Assignee: Perkins Engines Company Limited
    Inventor: Paresh Rameshchandra Desai
  • Patent number: 9726092
    Abstract: Methods and systems are provided for surge control in an engine system having multiple staged charge boosting devices. In one example, responsive to a drop in driver torque demand, compressed air is continued to be provided by operating a downstream intake compressor while accelerating an upstream compressor to reduce flow through the first compressor. By increasing the compressor pressure ratio at the first compressor via operation of the second compressor, surge is reduced without degrading boosted engine performance.
    Type: Grant
    Filed: November 16, 2015
    Date of Patent: August 8, 2017
    Assignee: Ford Global Technologies, LLC
    Inventors: Baitao Xiao, Hamid-Reza Ossareh, Julia Helen Buckland
  • Patent number: 9719393
    Abstract: An exhaust system for a dual-fuel engine includes an exhaust treatment component in an exhaust passageway. The exhaust treatment component is configured to treat exhaust from the combustion of a second fuel and not from combustion of a first fuel. A thermal enhancement device is in communication with the exhaust passageway and positioned upstream from the exhaust treatment component. A controller activates and deactivates the thermal enhancement device based on switching from the first fuel to the second fuel, wherein the first fuel has a higher sulfur content than the second fuel. The thermal enhancement device increases the temperature of an exhaust to combust a residual amount of the first fuel present in the exhaust passageway during the switch between the first fuel and the second fuel.
    Type: Grant
    Filed: June 8, 2015
    Date of Patent: August 1, 2017
    Assignee: Tenneco Automotive Operating Company Inc.
    Inventors: Michael Golin, Adam J. Kotrba, Robert Applegate
  • Patent number: 9719391
    Abstract: Methods and systems are provided for controlling and coordinating control of a post-catalyst exhaust throttle and an EGR valve to expedite catalyst heating. By closing both valves during an engine cold start, an elevated exhaust backpressure and increased heat rejection at an EGR cooler can be synergistically used to warm each of an engine and an exhaust catalyst. The valves may also be controlled to vary an amount of exhaust flowing through an exhaust venturi so as to meet engine vacuum needs while providing a desired amount of engine EGR.
    Type: Grant
    Filed: August 23, 2016
    Date of Patent: August 1, 2017
    Assignee: Ford Global Technologies, LLC
    Inventors: Joseph Norman Ulrey, Thomas G. Leone, William Charles Ruona, Gopichandra Surnilla, Ross Dykstra Pursifull, John D. Russell
  • Patent number: 9702323
    Abstract: A charge air cooling chamber has a lower wall with an orifice in the lower wall. A condensate pipe is fluidly connected to drain exhaust fume condensate from the orifice into a collection tank. A vent pipe is fluidly connected to vent fumes from an upper opening of the collection tank to an exhaust stack. A loop seal is fluidly connected to drain condensate from a lower opening of the collection tank. Exhaust gas moisture condensate drains from the cooling chamber into the collection tank, via the continuously open orifice. Exhaust gas moisture condensate fumes vent from the collection tank to the exhaust stack.
    Type: Grant
    Filed: March 17, 2015
    Date of Patent: July 11, 2017
    Assignee: General Electric Company
    Inventors: Derek Paschal, Charles Bernard Atz, Vijayaselvan Jayakar, Laus Lynd Deo
  • Patent number: 9689297
    Abstract: A Diesel Particulate Filter (DPF) system including a Venturi exhaust passage device, in which a temperature and a pressure in a high pressure passage are measured, together with a difference of pressures in the high pressure passage and a low pressure passage, while a pressure drop across a DPF is monitored. A PM amount and an exhaust flow rate, which are key parameters in DPF control, can be calculated with the measured values. With the Venturi exhaust passage device, a two-stage bootstrapping heating device with two DOCs and an electrical heater can be further used to heat exhaust gas at a temperature lower than a light-off temperature, while a flow-back passage fluidly connected to an outlet of the DPF can be used for increasing exhaust flow-rate and making PM distribution in the DPF more uniform.
    Type: Grant
    Filed: June 4, 2015
    Date of Patent: June 27, 2017
    Inventor: Baohua Qi
  • Patent number: 9689352
    Abstract: An exhaust gas recirculation (EGR) system for marine internal combustion engines and other variants is provided. An internal combustion engine is coupled to an electric power generator. An exhaust aftertreatment system connected to the engine includes an exhaust gas recirculation system with an exhaust gas recirculation system having one or more cooling features to reduce an external temperature of the EGR system.
    Type: Grant
    Filed: April 19, 2016
    Date of Patent: June 27, 2017
    Assignee: CUMMINS POWER GENERATION IP, INC.
    Inventor: Mark E. Turpin
  • Patent number: 9670886
    Abstract: An integrated exhaust gas recirculation (EGR) cooler includes a cooling core allowing an exhaust manifold and an intake manifold to be in communication with each other and an integrated housing having the cooling core inserted thereinto. The integrated housing is provided with a first exhaust port exhausting a coolant introduced thereinto only when a thermo-sensitive device mounted in the integrated housing is operated and a second exhaust port always exhausting the coolant introduced thereinto. An amount of the coolant introduced into an EGR cooler is maximized. Therefore, cooling efficiency may be maximized, and a size of the cooling core may be decreased.
    Type: Grant
    Filed: July 27, 2015
    Date of Patent: June 6, 2017
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTOR CORPORATION
    Inventors: Il Suk Yang, Jong Sub Lee, Han Sang Kim
  • Patent number: 9670830
    Abstract: A method for monitoring an internal combustion engine includes monitoring thermal efficiency in a heat exchanger of an exhaust gas recirculation (EGR) system with a flow control valve commanded to a first, open state and monitoring thermal efficiency in the heat exchanger with the flow control valve commanded to a second, closed state. The flow control valve is evaluated based upon the monitored efficiencies.
    Type: Grant
    Filed: October 29, 2014
    Date of Patent: June 6, 2017
    Assignee: GM Global Technology Operations LLC
    Inventors: Kevin J. McKay, Chad E. Marlett, Steve L. Melby
  • Patent number: 9664102
    Abstract: A power system including an intake gas cooler and aftercooler positioned gaseously downstream thereof. The intake gas cooler is configured to receive a fresh intake gas for combusting in an engine and a recirculated exhaust gas expelled by the engine for re-combusting therein.
    Type: Grant
    Filed: November 5, 2014
    Date of Patent: May 30, 2017
    Assignee: DEERE & COMPANY
    Inventors: Alan D. Sheidler, Matthew R. Evers, Craig W. Lohmann