Having Specific Exhaust Gas Outlet Structure At Intake Manifold Patents (Class 123/568.17)
  • Patent number: 10495034
    Abstract: An internal combustion engine including a cylinder head, a fresh air duct configured for providing a fresh air supply to the internal combustion engine, and a quick-closing valve arranged in the fresh air duct, upstream of the cylinder head of the internal combustion engine, in order to interrupt the fresh air supply. The internal combustion engine also includes an exhaust gas recirculation pipe that has an outlet opening that is arranged centrally in the fresh air duct and, in a flow direction of the fresh air supply, upstream of the quick-closing valve forming a minimum gap between the outlet opening and the quick-closing valve.
    Type: Grant
    Filed: April 5, 2018
    Date of Patent: December 3, 2019
    Assignee: MTU Friedrichshafen GmbH
    Inventors: Hermann Braun, Thomas Rode, Christian-Paul Stelzer
  • Patent number: 10385810
    Abstract: An intake system of an internal combustion engine with a supercharger includes: a negative pressure control valve which is disposed in the upstream side than an intake side supercharger in an intake passage; a first external gas introduction passage which introduces a single external gas made of blow-by gas, at a part of the intake passage which is on the upstream side of the intake side supercharger and on the downstream side of the negative pressure control valve; and a fresh air introduction passage which introduces fresh air to an internal combustion engine main body from the upstream side of the negative pressure control valve.
    Type: Grant
    Filed: October 20, 2016
    Date of Patent: August 20, 2019
    Assignee: AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Kazuya Matsushima, Yoichi Oyamada, Daigo USA, Yoshiyuki Kawai, Kohei Hotta
  • Patent number: 10359007
    Abstract: An intake apparatus for an internal combustion engine includes an intake apparatus body including a plurality of intake pipes which are connected to respective cylinders of the internal combustion engine, the internal combustion engine including the cylinders of which the number is multiples of three, and an outside gas distribution portion distributing outside gas to each of the plurality of intake pipes, the outside gas distribution portion including a single first outside gas distribution pipe connected to an outside gas supply source, a plurality of second outside gas distribution pipes branched from the first outside gas distribution portion, an outside gas collective passage gathering outside gas from the plurality of second outside gas distribution pipes, and three third outside gas distribution pipes branched from the outside gas collective passage and connected to the plurality of intake pipes respectively.
    Type: Grant
    Filed: October 30, 2015
    Date of Patent: July 23, 2019
    Assignee: AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Atsushi Ito, Keitaro Mori
  • Patent number: 10247198
    Abstract: The object is to provide a compressor housing which can suppress blowback of oil. A compressor housing (1) is used in a compressor which uses a compressor impeller (5) provided in an intake air flow path more to a downstream side than a blow-by gas inlet. The compressor housing (1) includes an impeller chamber (2), and an intake air duct (6) which extends along an axis line (C). The duct (6) includes an inner-wall face (61). A step part (67) that is arc shaped along a circumferential direction of the impeller (5) and has a distance along the radial direction of the impeller (5) from the axis line (C) that is farther at a downstream side than at an upstream side thereof is formed in the inner-wall face (61) more to an upstream side along the axis line (C) than the intake air inlet (22).
    Type: Grant
    Filed: August 4, 2017
    Date of Patent: April 2, 2019
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Akihiko Fujiwara, Atsushi Shimizu, Shota Kadokura
  • Patent number: 10161362
    Abstract: Methods and systems are provided for a mixer. In one example, a system may include an EGR mixing having a downstream surface with a plurality of venturi tubes extending therefrom.
    Type: Grant
    Filed: August 29, 2016
    Date of Patent: December 25, 2018
    Assignee: Ford Global Technologies, LLC
    Inventor: Xiaogang Zhang
  • Patent number: 10151278
    Abstract: Methods and systems are provided for an Exhaust Gas Recirculation (EGR) system for an internal combustion engine. In one example, the EGR system comprises an inlet air duct configured to provide the internal combustion engine with inlet air, an EGR diffuser configured to provide recirculated exhaust gases from the internal combustion engine to the inlet air duct through an outlet, and a resilient element, the EGR diffuser and resilient element adapted to provide homogenous mixing of EGR gases and inlet air at a specific operating condition of the vehicle.
    Type: Grant
    Filed: July 22, 2016
    Date of Patent: December 11, 2018
    Assignee: Ford Global Technologies, LLC
    Inventor: William John Mallard
  • Patent number: 10119438
    Abstract: An engine system comprises an intake manifold including a manifold body downstream of an intake port and having a first through-aperture and a second through-apertures spaced apart from the first through-aperture on the manifold body; a positive crankcase ventilation (PCV) system including a first PCV branch and a second PCV branch communicated fluidly with the first through-aperture and the second through-aperture of the manifold body, respectively, and configured to route a blow-by gas in a crankcase to the intake manifold; and a variable valve assembly to regulate a flow passing through the first or second PCV branches.
    Type: Grant
    Filed: April 21, 2017
    Date of Patent: November 6, 2018
    Assignee: Ford Global Technologies, LLC
    Inventors: Baocheng Sun, Bruce Li, Bin Yin, Dallis Sun
  • Patent number: 10082110
    Abstract: Systems, methods and techniques for exhaust gas recirculation are provided. The system includes mixing exhaust flow from at least one cylinder of an engine with air in an air intake system prior to combustion. The exhaust flow from the at least one cylinder is accumulated prior to mixing and distributed into the intake air system in a controlled manner.
    Type: Grant
    Filed: April 15, 2015
    Date of Patent: September 25, 2018
    Assignee: Cummins Inc.
    Inventors: Rajkumar Subramanian, Madhuri Gandikota, Marten H. Dane, Samuel C. Geckler, Sudhanshu Talwar
  • Patent number: 10036353
    Abstract: An exhaust gas recirculation apparatus includes: a fresh air throttle portion that continues from a fresh air inlet portion and is configured to throttle the flow of fresh air; an inner side tube portion that continues from the fresh air throttle portion, has a tubular shape and has an opening end disposed on a side opposite to the fresh air throttle portion; an exhaust gas inlet portion configured to receive a flow of exhaust gas; a surrounding portion that continues from the exhaust gas inlet portion, surrounds the inner side tube portion, and defines a circumference direction flow path for the exhaust gas extending along an outer circumference surface of the inner side tube portion; and an outlet portion that continues from the surrounding portion, has a tubular shape, and defines a merging flow path configured to receive the flow of the fresh air flowing out from the opening end of the inner side tube portion and the flow of the exhaust gas flowing out from the circumference direction flow path.
    Type: Grant
    Filed: December 22, 2014
    Date of Patent: July 31, 2018
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Shintaro Shuto, Tatsuo Ishiguro, Hiromi Komatsu, Yasuhiro Tanaka, Takafumi Tanaka, Satoshi Yamada, Hiroyuki Ueda
  • Patent number: 9957915
    Abstract: The cylinder head includes: an intake port; a low-temperature cooling water channel for circulating low-temperature cooling water; a high-temperature cooling water channel for circulating cooling water of a higher temperature than the cooling water flowing through the low-temperature cooling water channel; and a gas channel for recirculating a portion of blow-by gas or EGR gas to the intake port. The low-temperature cooling water channel is configured to include a first water jacket that covers at least one portion of the wall surface of the intake port on an intake-air upstream side relative to an opening end opening at a wall surface of the intake port from the gas channel.
    Type: Grant
    Filed: May 11, 2016
    Date of Patent: May 1, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Kohei Kodama
  • Patent number: 9945334
    Abstract: An engine assembly is provided with an intake manifold having a manifold body downstream of a fresh air intake port. The manifold body has a wall defining first and second apertures spaced apart from one another. A positive crankcase ventilation (PCV) device is provided with a PCV pipe having a first end in fluid communication with a crankcase and a second end connected to first and second PCV branches. The first and second PCV branches are in fluid communication with the first and second apertures. A method is provided and directs a first portion of gases from the crankcase to the first aperture via the PCV pipe and the first PCV branch, and directs a second portion of gases from the crankcase to the second aperture via the PCV pipe and the second PCV branch.
    Type: Grant
    Filed: May 17, 2016
    Date of Patent: April 17, 2018
    Assignee: Ford Global Technologies, LLC
    Inventors: Baocheng Sun, Li Li, Dallis Sun, Bin Yin, Xihu Xu
  • Patent number: 9932875
    Abstract: Systems are provided for a mixer configured to be used in either an intake or exhaust passage. In one example, a mixer in the intake passage may be adapted to mix EGR with intake air and a mixer in the exhaust passage may be adapted to mix urea with exhaust gas.
    Type: Grant
    Filed: March 2, 2016
    Date of Patent: April 3, 2018
    Assignee: Ford Global Technologies, LLC
    Inventor: Xiaogang Zhang
  • Patent number: 9920721
    Abstract: The invention relates to a distribution module (11) for distributing an inlet mixture to at least two cylinders of a heat engine, this inlet mixture selectively comprising:—cooled inlet air, or—non-cooled inlet air, or—recirculation gas, or—a combination of at least two of the above elements, the module (11) comprising:—a first inlet (21) for conveying cooled inlet air into the module (11),—a second inlet (22) for conveying non-cooled inlet air into the module (11),—a third inlet (23) for conveying recirculation gas into the module (11), the module being arranged to distribute the inlet mixture substantially equally between said at least two cylinders.
    Type: Grant
    Filed: June 13, 2014
    Date of Patent: March 20, 2018
    Assignee: Valeo Systemes de Controle Moteur
    Inventors: Mathieu Lallemant, Franck Girardon, Patrick Lebrasseur
  • Patent number: 9879640
    Abstract: A housing has an outer pipe. An inner pipe is accommodated in the outer pipe. The inner pipe defines an inner passage internally. The inner pipe defines an annular passage externally with the outer pipe. The inner pipe has through holes communicating the inner passage with the annular passage. The housing internally defines an EGR channel communicating with the annular passage. The EGR channel accommodates a deflector partitioning the EGR channel.
    Type: Grant
    Filed: January 12, 2015
    Date of Patent: January 30, 2018
    Assignees: DENSO International America Inc., DENSO CORPORATION
    Inventors: Jude Dahl, Tadashi Komiyama
  • Patent number: 9739237
    Abstract: An exhaust gas recirculation device for an engine including a plurality of cylinders and intake branch passages is provided. The exhaust gas recirculation device includes an exhaust chamber and distribution passages for the respective cylinders. The exhaust chamber is connected to an exhaust passage of the engine, and exhaust gas from the exhaust passage is introduced into the exhaust chamber. The distribution passages connect the exhaust chamber to the intake branch passages for the respective cylinders so as to recirculate the exhaust gas back into the intake branch passages. The flow passage area of a first portion of each of the distribution passages is smaller than the flow passage area of a second portion of each of the distribution passages. The first portion is connected to the corresponding intake branch passage, and the second portion is connected to the exhaust chamber.
    Type: Grant
    Filed: May 18, 2015
    Date of Patent: August 22, 2017
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Taketo Nagasaki, Yoshihiro Miyaji, Masaki Makihara
  • Patent number: 9739240
    Abstract: A housing has an outer pipe, an inner pipe, and an EGR inlet. The inner pipe is located inside the outer pipe. The inner pipe defines an inner passage internally. The inner pipe defines an annular passage externally with the outer pipe. The EGR inlet defines an EGR channel therein to communicate with the annular passage. The inner pipe has an end surface defining a throttle passage extending circumferentially. The throttle passage communicates the annular passage with the inner passage radially inward. The throttle passage is narrow on a side of the EGR channel and is wide on an opposite side of the EGR channel.
    Type: Grant
    Filed: November 14, 2014
    Date of Patent: August 22, 2017
    Assignees: DENSO International America, Inc., DENSO CORPORATION
    Inventors: Blaise DiDonato, Jr., Mark Williams, Robert Cardno
  • Patent number: 9695779
    Abstract: The present disclosure relates to a mixing chamber for mixing exhaust gas with intake air in an engine. The mixing chamber has an intake air inlet, an exhaust gas inlet and a mixing post. The mixing post is located downstream of the charge air inlet and upstream of a point where the flow of exhaust gas meets the flow of intake air, the mixing post extending across the mixing chamber. The mixing post has a longitudinal axis which is oriented perpendicular to a longitudinal axis of the mixing chamber.
    Type: Grant
    Filed: February 10, 2015
    Date of Patent: July 4, 2017
    Assignee: Perkins Engines Company Limited
    Inventors: Paul Wilkinson, Jean-Yves Tillier
  • Patent number: 9670882
    Abstract: An EGR valve is provided with a curved connecting surface to allow condensate to flow from an outlet to an exhaust gas inlet of the EGR valve during the use of low-pressure EGR. The curved connecting surface mitigates condensation and/or ice from entering the intake line and impinging on the compressor wheel.
    Type: Grant
    Filed: January 13, 2015
    Date of Patent: June 6, 2017
    Assignee: Ford Global Technologies, LLC
    Inventors: Andreas Kuske, Christian Winge Vigild, Daniel Roettger
  • Patent number: 9631582
    Abstract: A system includes an internal combustion engine having a number of cylinders, with at least one of the cylinders plumbed to have a complete recycle of the exhaust gases from the cylinder. The system further includes the completely recycled cylinder having an EGR stroke cycle, and the non-recycled cylinders of the engine having an exhaust stroke cycle. The system includes the EGR stroke cycle being distinct from the exhaust stroke cycle. An amount and composition of the exhaust gases from the recycled cylinder are distinct from the amount and composition of the exhaust gases from the non-recycled cylinders, at least at certain operating conditions of the engine.
    Type: Grant
    Filed: December 24, 2014
    Date of Patent: April 25, 2017
    Assignee: Cummins Inc.
    Inventors: Samuel C. Geckler, Madhuri Gandikota, Rajkumar Subramanian, Axel Otto zur Loye
  • Patent number: 9587566
    Abstract: This air intake apparatus for an internal combustion engine includes a throttle-side air intake pipe having one end connected to a throttle and another end connected to a surge tank, an external gas inlet provided in at least one of the throttle-side air intake pipe and the surge tank, introducing external gas into at least one of the throttle-side air intake pipe and the surge tank, and a gas distributivity improvement fin provided inside at least one of the throttle-side air intake pipe and the surge tank, which corresponds to the external gas inlet, diffusing the external gas to intake air from the throttle.
    Type: Grant
    Filed: December 16, 2013
    Date of Patent: March 7, 2017
    Assignee: AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Atsushi Ito, Keitaro Mori
  • Patent number: 9500119
    Abstract: The present invention relates to a turbocharger (1) for an internal combustion engine (2), having at least one low-pressure exhaust-gas recirculation line (3) which opens out via an exhaust-gas mixing-in opening (12) into an intake line (10) of the internal combustion engine (2); having a turbine (4) and having a compressor (5) which is drive-connected to the turbine (4) and which has a compressor wheel (6) which is arranged in a compressor housing (7) into which the intake line (10) opens out via a compressor inlet (11), and having a mixing device (18) for mixing recirculated exhaust gas (AG) and fresh air (FL), characterized in that the mixing device (18) has an inflow distributor (21) in which the exhaust-gas recirculation line (3), which extends at least substantially along the longitudinal axis (L) thereof, and the intake line (10), which extends at least substantially at right angles to the longitudinal axis (L), open out, and in that, as viewed in the flow direction (R) of the exhaust gases (AG), an im
    Type: Grant
    Filed: February 1, 2011
    Date of Patent: November 22, 2016
    Assignee: BorgWarner Inc.
    Inventor: Thomas Lischer
  • Patent number: 9488098
    Abstract: A device for mixing exhaust gas in an engine air intake includes a mixing chamber disposed or formed in an air intake conduit, the mixing chamber having an inlet for receiving intake air and an outlet for exhausting the intake air, and having a port between the inlet and the outlet and a mixer tube extending into the port, an end portion of the mixer tube disposed in the mixing chamber shaped as a cylindrical-section having an elongated opening facing the mixing chamber outlet and a wall facing the mixing chamber inlet, a cross-sectional area of the end portion of the mixer tube being at least 40% of a cross sectional area of the mixing chamber at a point where the mixer tube extends into the mixing chamber and an end tip of the mixer tube being spaced from a wall of the mixing chamber opposite the aperture by a distance not more than 20% of a width of the mixing chamber.
    Type: Grant
    Filed: January 24, 2008
    Date of Patent: November 8, 2016
    Assignee: MACK TRUCKS, INC.
    Inventor: John Sponsky
  • Patent number: 9453460
    Abstract: The invention pertains to fluegas recirculation in gas turbines, and specifically to an intake section upstream of the inlet of a compressor of a gas turbine unit with fluegas recirculation. The intake section includes at least one section with a flow path defined by sidewalls in which the fresh airflow of the intake air is flowing along a principal airflow direction, including at least one mixing duct extending into the flow path from at least one sidewall. The mixing duct includes an intake at the at least one sidewall for receiving recirculated fluegas, as well as including at least one outlet opening distanced from said sidewall for blowing recirculated fluegas out of the mixing duct into the airflow.
    Type: Grant
    Filed: July 23, 2013
    Date of Patent: September 27, 2016
    Assignee: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventors: Eribert Benz, Niclas Lars Olof Lindqvist, Ali Mustapha Tabikh, Lars Filip Lundin
  • Patent number: 9435297
    Abstract: An EGR device for an internal combustion engine comprises: an EGR path through which a part of exhaust gas is recirculated from the exhaust gas conduit of an internal combustion engine as EGR gas to the intake path; and an EGR valve that is disposed within the EGR path and adjusts the flow rate of the EGR gas flowing through the EGR path. An curved structure EGR path from a position at which the EGR valve is disposed until a joining section (8d) merging with an intake manifold is a curved structure having a turned-back section which is curved in a cross-sectional view cutting a plane parallel to an installation plane on which the internal combustion engine is mounted. The position at which the EGR valve is disposed is higher than the joining section, and the EGR path of the curved structure slopes downward from the EGR valve side.
    Type: Grant
    Filed: July 12, 2012
    Date of Patent: September 6, 2016
    Assignee: HONDA MOTOR CO., LTD.
    Inventor: Atsushi Shimizu
  • Patent number: 9353711
    Abstract: A boost purge ejector tee arrangement for a fuel vapor emissions system can include a boost purge ejector tee having a body that can define a first inlet port, a second inlet port and an outlet port. The first inlet port and the outlet port can be fluidly coupled along a first flow path. The body can define a second flow path from the second inlet port that can intersect the first flow path upstream of the outlet port. A nozzle can be positioned in the first flow path such that an outlet of the nozzle can be proximate the intersection of the second flow path with the first flow path. The boost purge ejector tee can be integrated into an air box that can be associated with an engine such that the outlet port exits into an inside of the air box.
    Type: Grant
    Filed: October 8, 2013
    Date of Patent: May 31, 2016
    Assignee: FCA US LLC
    Inventors: Daniel H Edmund, Roger C Sager, William B Blomquist, Michael R Grote, Frederick A Gibb, Christopher G Hadre
  • Patent number: 9309837
    Abstract: Methods and systems are provided for using compressor recirculation flow via a venturi to enhance low pressure EGR flow. The opening of a compressor recirculation valve can be adjusted based on EGR flow demand to recirculate cooled compressed air through a venturi while generating vacuum for drawing EGR. The approach allows for concurrent EGR control and surge control.
    Type: Grant
    Filed: August 13, 2013
    Date of Patent: April 12, 2016
    Assignee: Ford Global Technologies, LLC
    Inventors: Joseph Norman Ulrey, Gregory Patrick McConville, Daniel Joseph Styles, Ross Dykstra Pursifull, Michael Howard Shelby
  • Patent number: 9303557
    Abstract: Methods and systems are provided for using compressor recirculation flow via a venturi to enhance low pressure EGR flow. The opening of a compressor recirculation valve can be adjusted based on EGR flow demand to recirculate cooled compressed air through a venturi while generating vacuum for drawing EGR. The approach allows for concurrent EGR control and surge control.
    Type: Grant
    Filed: August 13, 2013
    Date of Patent: April 5, 2016
    Assignee: Ford Global Technologies, LLC
    Inventors: Joseph Norman Ulrey, Gregory Patrick McConville, Daniel Joseph Styles, Ross Dykstra Pursifull, Michael Howard Shelby
  • Patent number: 9273652
    Abstract: Provided is an air intake device for an internal combustion engine, the air intake device being configured so that a reduction in the amount of intake air is minimized. An air intake device for an internal combustion engine has: an intake air path for supplying air from a surge tank to the combustion chamber of the internal combustion engine; and an exhaust gas path for supplying exhaust gas from an exhaust gas distribution header to the combustion chamber. The length of the exhaust gas path measured along the centerline of the exhaust gas path is set to be in the range from 75% to 125%, inclusive, of the length of the intake air path measured along the centerline of the intake air path.
    Type: Grant
    Filed: June 12, 2012
    Date of Patent: March 1, 2016
    Assignee: AISIN SEIKI KABUSHIKI KAISHA
    Inventor: Atsushi Ito
  • Patent number: 9255552
    Abstract: An engine system for a machine is disclosed. The engine system may have a first intake manifold configured to distribute air into a first cylinder bank of an engine. The engine system may also have a second intake manifold configured to distribute air into a second cylinder bank of the engine. The engine system may have a first exhaust manifold configured to discharge exhaust from the first cylinder bank to the atmosphere. The engine system may further have a second exhaust manifold configured to discharge exhaust from non-donor cylinders in the second cylinder bank to the atmosphere. In addition, the engine system may have a third exhaust manifold separate from the first and second exhaust manifolds and configured to recirculate exhaust from donor cylinders in the second cylinder bank to the first and second intake manifolds.
    Type: Grant
    Filed: May 8, 2013
    Date of Patent: February 9, 2016
    Assignee: Electro-Motive Diesel, Inc.
    Inventors: Michael B. Goetzke, Reddy Pocha Siva Sankara, Stephen M. Bednarz, Deep Bandyopadhyay, Steven Dallas Johnson
  • Patent number: 9249765
    Abstract: An intake manifold includes plural intake pipes, a distribution portion connecting to the plural intake pipes and guiding fluid at an inside of the distribution portion to the plural intake pipes and a first protruding portion providing at least a same number of the plural intake pipes at the inside of the distribution portion, the first protruding portion being directed to the corresponding intake pipes.
    Type: Grant
    Filed: July 16, 2013
    Date of Patent: February 2, 2016
    Assignee: AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Tomohisa Senda, Hideaki Teramoto
  • Patent number: 9217444
    Abstract: Intake manifold element (1) having a tubular section (3) through which a first fluid (A) can flow in a proposed flow direction (A?) via a flow channel (4) from an inlet (4a) to an outlet (4b) of the same, said tubular section being provided for arrangement on a compressor inlet (11a) of a turbocharger, characterized in that the flow channel (4) has a nozzle-shaped design, wherein its cross-section which the fluid can flow through is tapered in the flow direction (A?), wherein the tubular section (3) forms a chamber (6) adjacent to the nozzle-shaped flow channel (4) which serves as flow path from an inlet (6a) to an outlet (6b) for the aspiration of a second fluid (B), the pressure level of said chamber on the inlet (6a) being dependent on the pressure level of the first fluid (A) on the outlet (4b) of the flow channel (4) via communicating outlets (6b, 4b) of the chamber (6) and the flow channel (4).
    Type: Grant
    Filed: June 21, 2012
    Date of Patent: December 22, 2015
    Assignee: MTU Friedrichshafen GmbH
    Inventors: Ingmar Berger, Tobias Männle, Kajetan Plenk
  • Patent number: 9051902
    Abstract: A mixer, for use with an internal combustion engine, for mixing EGR gas from an EGR loop with fresh air from the engine's fresh air intake. The mixer has an outer shell having the general shape of a thin-shelled hollow cylinder with a side entry port. One end of the cylinder provides a straight entry port and the other end of the cylinder provides a straight exit port. An inner sleeve fits inside the outer shell such that a space is provided between the inner sleeve and the outer shell, and a passageway is formed inside the inner sleeve through the length of the mixer. The inner sleeve has a series of flow ribs extending from its outer surface within the space, and has entry holes for providing fluid communication from the space into the passageway.
    Type: Grant
    Filed: May 13, 2013
    Date of Patent: June 9, 2015
    Assignee: SOUTHWEST RESEARCH INSTITUTE
    Inventors: Guy M. Jones, Anthony J. Megel
  • Patent number: 9016265
    Abstract: An exhaust gas recirculation valve for an internal combustion engine includes a housing comprising an exhaust gas inlet and an exhaust gas outlet, and a valve closing body fastened to a valve rod. The valve rod is movable. A valve seat is arranged between the exhaust gas inlet and the exhaust gas outlet. A guide bushing comprising a first section guides the valve rod in the housing. A sealing ring is arranged at an end of the guide bushing remote from the valve closing body. The valve closing body is lowered onto the valve seat by a movement of the valve rod and lifted from the valve closing body by an opposite movement of the valve rod. A circumferential gap is formed between the valve rod and the guide bushing in the first section of the guide bushing directed toward the sealing ring.
    Type: Grant
    Filed: August 3, 2011
    Date of Patent: April 28, 2015
    Assignee: Pierburg GmbH
    Inventors: Stefan Vitt, Osman Sari, Gérard Dietz
  • Patent number: 9010304
    Abstract: A connecting passage is formed inside a cylinder head, which extends rearward from an exhaust passage and connects to the exhaust passage. The connecting passage branches inside the cylinder head into two branch passages, which open at a rear end face of the cylinder head, respectively. An opening portion, one of opening portions of the branch passages, connects to an EGR cooler, and another opening portion, the other of opening portions of the branch passages, connects to a bypass pipe. Accordingly, the exhaust gas recirculation device of an engine which can restrain the device from being improperly large sized, providing the EGR cooler and the bypass pipe, can be provided.
    Type: Grant
    Filed: June 16, 2011
    Date of Patent: April 21, 2015
    Assignee: Mazda Motor Corporation
    Inventors: Yuji Kojima, Tomohiro Sunada, Daijiro Ishimoto
  • Patent number: 9003791
    Abstract: A casing treatment 4 including a recirculation passage 41 and a mixing piping 6 are provided. The recirculation passage 41 has a first recirculation opening 42 and a second recirculation opening 43 that are in communication with each other, the first recirculation opening 42 being formed inside a compressor housing 11 of an exhaust gas turbocharger and opening to an air passage 15 upstream of a compressor impeller 3, the second recirculation opening 43 being formed at the outer circumferential section of the compressor impeller 3. The mixing pipe 6 opens to the recirculation passage 41 and has a return opening 14 for introducing EGR gas and blow-by gas to the recirculation passage 41.
    Type: Grant
    Filed: December 16, 2011
    Date of Patent: April 14, 2015
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Seiichi Ibaraki, Takashi Shiraishi, Hiroshi Suzuki
  • Patent number: 8996281
    Abstract: A method of decreasing the light-off time of a catalytic exhaust aftertreatment device, using exhaust gas recirculation (EGR) in a turbocharged internal combustion engine. The engine has at least one “dedicated EGR cylinder”, whose entire exhaust is recirculated back to all the engine cylinders. The dedicated EGR cylinder(s) may be operated to produce a differently compositioned exhaust gas than the other cylinders. During light-off, EGR gas is optimized for heat, diverted from the EGR loop and routed to a point directly upstream the aftertreatment device.
    Type: Grant
    Filed: November 17, 2012
    Date of Patent: March 31, 2015
    Assignee: Southwest Research Institute
    Inventors: Jess W. Gingrich, Terrence F. Alger, II
  • Patent number: 8967127
    Abstract: An intake apparatus for an internal combustion engine includes a plurality of branch pipes connected at downstream ends thereof to an engine main body, an intake chamber to which upstream ends of the branch pipes are connected, and a common intake air introducing part connected to the center of the intake chamber in a cylinder arrangement direction. The intake chamber includes a projecting part projecting toward the engine main body relative to the common intake air introducing part. An EGR introducing passage is connected to the center of the projecting part in the cylinder arrangement direction. A downstream end of the EGR introducing passage is directed toward a wall of the projecting part on the common intake air introducing part side.
    Type: Grant
    Filed: June 11, 2012
    Date of Patent: March 3, 2015
    Assignee: Honda Motor Co., Ltd.
    Inventors: Masatatsu Enami, Osamu Watanabe, Akihiro Katsuura, Shinji Wakamoto, Takayuki Namai
  • Patent number: 8943801
    Abstract: A valve (10) may be used with an internal combustion engine exhaust breathing system (12) and may include a body (60), a partition (62), and a plate (66). The body (60) may define a first port (70) that has a first interior surface (76), and may also define a second port (82) that has a second interior surface (84). The partition (62) may be located within the body (60), may at least partially separate the first port (70) and the second port (82) from each other, and may define an opening (104). The plate (66) may be dimensioned to seat and seal against the opening (104) and against the first and second interior surfaces (76, 84). The plate (66) may rotate, depending on predetermined factors, between a first position and a second position.
    Type: Grant
    Filed: March 12, 2009
    Date of Patent: February 3, 2015
    Assignee: BorgWarner Inc.
    Inventor: Todd R. Peterson
  • Patent number: 8936012
    Abstract: The first aspect of the present invention is a cylinder head containing a water jacket in which a passage for EGR gas is disposed, and the EGR gas passage has a hollow pipe that is disposed in the hollow pipe and through which the EGR gas passes and an end member that is formed with an insert hole into which the end of the hollow pipe is inserted and fixed. The end member has a bottom that is provided with the insert hole, a side wall that is formed continuously to the bottom, and a wedge portion that is projected outward from the outer peripheral of the side wall and includes a inclined surface facing the wall of the cylinder head and inclined to the flow direction of the EGR gas. The EGR gas passage is fixed to the cylinder head by holding the wedge portion of the end member between a fastening member for fastening the EGR gas passage to the cylinder head and the wall of the cylinder head.
    Type: Grant
    Filed: September 27, 2010
    Date of Patent: January 20, 2015
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Masahiko Asano, Toshiaki Hamaguri
  • Patent number: 8931461
    Abstract: Various systems and methods are described for operating an engine system having a sensor coupled to an exhaust gas recirculation system in a motor vehicle. One example method comprises during a first operating condition, directing at least some exhaust gas from an exhaust of the engine through the exhaust gas recirculation system and past the sensor to an intake of the engine and, during a second operating condition, directing at least some fresh air through the exhaust gas recirculation system and past the sensor.
    Type: Grant
    Filed: April 16, 2014
    Date of Patent: January 13, 2015
    Assignee: Ford Global Technologies, LLC
    Inventors: Dave Charles Weber, Michiel J. Van Nieuwstadt, Daniel Joseph Styles, Daniel Joseph Rinkevich
  • Patent number: 8925529
    Abstract: A device has an air inlet channel with at an end an inlet opening for fresh air and at the other end an outlet opening for a mixture of air and exhaust gas. A part of a wall of the air inlet channel is provided with mixing openings for supply of exhaust gas. The device further has an exhaust gas recirculation channel connected to the mixing openings and provided with an inlet opening for exhaust gas.
    Type: Grant
    Filed: July 22, 2011
    Date of Patent: January 6, 2015
    Assignee: Daf Trucks N.V.
    Inventor: Martinus Nerius Maria Lucien van Hal
  • Patent number: 8925530
    Abstract: An integrated exhaust gas recirculation intake module comprises: an intake system including a fresh air channel; and a coupling device, wherein the coupling device is configured to receive an exhaust gas recirculation valve, wherein the coupling device is configured to connect an exhaust gas channel with a fresh gas channel, and wherein the exhaust gas channel is connected with the coupling device such that a heat transfer is hindered.
    Type: Grant
    Filed: April 16, 2010
    Date of Patent: January 6, 2015
    Assignee: Mahle International GmbH
    Inventors: Veit Bruggesser, Hans-Peter Drespling, Oliver Fischer
  • Patent number: 8919315
    Abstract: An intake manifold (2) of comburent air is provided for an internal combustion engine (1) with a recirculating conduit (60) of exhaust gases. The intake manifold (2) includes a first inlet mouth (213) of the comburent air, a second inlet mouth (214) in communication with the recirculating conduit (60) of the exhaust gases, and a plurality of outlet mouths (201), having a wall (7) positioned in front of each of the outlet mouths (201) and suitable for dividing the internal volume of the intake manifold (2) into two chambers (215, 204), the first chamber (215) being placed in communication with the first inlet mouth (213) and the second inlet mouth (214) and the second chamber (204) being placed in communication with the outlet mouths (201), the wall (7) defining an opening (70) suitable for placing the first chamber (215) and the second chamber (204) in communication.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: December 30, 2014
    Assignee: Lombardini S.R.L.
    Inventor: Gianni Borghi
  • Patent number: 8915235
    Abstract: An air exhaust mixer assembly includes an upstream intake section with an upstream elbow and a downstream elbow. A mixing tube is configured to introduce exhaust gas into the upstream intake section at a location upstream of the downstream elbow. An internal combustion engine utilizing the air exhaust mixer assembly is also provided.
    Type: Grant
    Filed: June 28, 2011
    Date of Patent: December 23, 2014
    Assignee: Caterpillar Inc.
    Inventors: Aaron Luft, Jeremy Byrd, Rohan Swar, Catalin Tiru, Prasad Chodavarapu
  • Patent number: 8905008
    Abstract: The invention relates to a gas supply module (20) for an engine, comprising a heat exchanger (22) capable of cooling gases for the intake thereof in an intake space of a cylinder head of the engine, and a gas supply valve (24) capable of directing said gases toward the intake space of said cylinder head and/or through said heat exchanger (22), said module (20) further comprising an interface element (26) closing said intake space of said cylinder head. According to the invention, said interface element (26) and said valve (24) are shaped such that said valve (24) can be attached to said cylinder head via at least a first attachment means extending through at least the interface element (26). The invention also relates to an assembly of an engine cylinder head and such a module, and to a motor vehicle engine comprising such an assembly. The invention can particularly be used in the field of motor vehicles.
    Type: Grant
    Filed: November 8, 2010
    Date of Patent: December 9, 2014
    Assignee: Valeo Systems Thermiques
    Inventor: Samuel Leroux
  • Patent number: 8899215
    Abstract: An EGR valve includes an aluminum valve body, an outer metal ring, an inner resin ring, a butterfly valve, and a seal ring. The valve body includes a gas passage therein. The gas passage is part of an EGR passage, through which EGR gas is returned from an exhaust passage to intake passage of an engine. The outer ring has a cylindrical shape, and is fixed and disposed on an inner wall of the gas passage. The inner ring has a cylindrical shape, and is disposed on an inner peripheral wall of the outer ring. The butterfly valve opens or closes an inside of the inner ring, and includes a seal fitting groove at an outer peripheral edge of the butterfly valve. The seal ring is fitted into the groove, and seals a clearance between the butterfly valve and the inner ring when the butterfly valve is closed.
    Type: Grant
    Filed: March 27, 2012
    Date of Patent: December 2, 2014
    Assignee: Denso Corporation
    Inventors: Ryo Sano, Yusuke Niwa, Tetsuji Yamanaka, Hiroki Shimada
  • Patent number: 8899214
    Abstract: A recirculation device includes an air intake duct (3) which is followed by a manifold (6), means for introducing recycled exhaust gases, for mixing same with the fresh air let in. This device is designed to inject the exhaust gases by forming two counter-rotating adjacent vortices (14, 15), owing to a twin tubular mixer nozzle (10, 11) in communication with a common exhaust gas supply duct, positioned tangentially with respect to the two nozzles, placed side by side. The two vortices (14, 15) are self-sustaining to the outlets (7) of the manifold (6). Such a recirculation device is applied, in particular, to an air intake duct (3) of oblong cross section and/or to a manifold (6) with a flattened inlet (5) and/or a flattened plenum (8), in particular for a motor vehicle engine.
    Type: Grant
    Filed: June 27, 2008
    Date of Patent: December 2, 2014
    Assignee: MGI Coutier
    Inventors: Pascal Guerry, Hervé Martinengo, Moïse Dominguez, Paul Ferrey
  • Publication number: 20140331669
    Abstract: A mixer, for use with an internal combustion engine, for mixing EGR gas from an EGR loop with fresh air from the engine's fresh air intake. The mixer has an outer shell having the general shape of a thin-shelled hollow cylinder with a side entry port. One end of the cylinder provides a straight entry port and the other end of the cylinder provides a straight exit port. An inner sleeve fits inside the outer shell such that a space is provided between the inner sleeve and the outer shell, and a passageway is formed inside the inner sleeve through the length of the mixer. The inner sleeve has a series of flow ribs extending from its outer surface within the space, and has entry holes for providing fluid communication from the space into the passageway.
    Type: Application
    Filed: May 13, 2013
    Publication date: November 13, 2014
    Applicant: Southwest Research Institute
    Inventors: Guy M. Jones, Anthony J. Megel
  • Publication number: 20140290633
    Abstract: An intake body, systems. and method for reducing acoustic resonance in pressure tap passages include determining and/or setting the length of the drilling tap passages to a value such that the natural frequency of each pressure tap passage is outside of or does not substantially overlap with operational frequency content of an air stream in the intake body. The intake body, systems and method reduce the possibility of exciting the natural acoustic frequencies of the pressure tap passages, and can lead to improved signal-to-noise ratio when detecting EGR flow using a delta-P measurement system.
    Type: Application
    Filed: January 27, 2014
    Publication date: October 2, 2014
    Applicant: Cummins Intellectual Properties, Inc.
    Inventors: Greg Emerick, David Moenssen, Brian Aldlerfer, Robert E. Dehner
  • Publication number: 20140246000
    Abstract: An exhaust gas recirculation device for a motor vehicle is disclosed with includes an unburnt gas line for guiding an unburnt gas flow and at least one exhaust gas feed line for supplying exhaust gas into the unburnt gas line. At least two discharge openings offset relative to each other in the circumferential direction of the unburnt gas line are provided in the unburnt gas line, by way of which the exhaust gas can be or is supplied to the unburnt gas line.
    Type: Application
    Filed: February 28, 2014
    Publication date: September 4, 2014
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Lutz Kilian Cloos, Gerwin Tittes