Plural Superchargers Patents (Class 60/612)
  • Patent number: 8646270
    Abstract: Turbines and compressors, which constitute superchargers, are disposed in series on an exhaust gas passage and an air intake passage, respectively. The supercharger is equipped with a supercharger rotation sensor, which transmits a detection signal obtained according to the rotation of the compressor to a control device, a bypass passage, which bypasses exhaust gas from the upstream side to the downstream side of the turbine, and a bypass valve, which regulates the flow rate of exhaust gas flowing through the bypass passage. Control device regulates the rotational speed of the compressors in a high-efficiency range by producing a control signal based on the detection signal from the supercharger rotation sensor, and sending the control signal to the bypass valve.
    Type: Grant
    Filed: June 11, 2009
    Date of Patent: February 11, 2014
    Assignee: Yanmar Co., Ltd.
    Inventors: Takeshi Takahashi, Takao Kawabe, Hidenori Nomura, Tomoo Ogata, Kouji Shimizu, Satomi Ukai
  • Patent number: 8640459
    Abstract: A turbocharger control system for a high-pressure turbocharger and a low-pressure turbocharger includes a turbo mode determination module and a transition control module. The turbo mode determination module determines a transition from a dual turbo mode to a single turbo mode. The high-pressure turbocharger is active in the dual turbo mode and idle in the single turbo mode. The transition control module determines a turbine efficiency of the high-pressure turbocharger and controls the high-pressure turbocharger during the transition based on a predetermined maximum turbine efficiency equation.
    Type: Grant
    Filed: October 23, 2009
    Date of Patent: February 4, 2014
    Inventors: Ping Ge, Donald R. Meyer
  • Patent number: 8640458
    Abstract: A method of controlling an engine includes manipulating a wastegate to maintain the operation of the turbocharger within an optimum operating range. A combustion air bypass valve is manipulated between an open position and a closed position to create a negative pressure differential across a supercharger. The supercharger is sequentially disposed in-line before the turbocharger. The negative pressure differential is converted into a torque by the supercharger and transmitted from the supercharger back to the engine to increase the operating efficiency of the engine.
    Type: Grant
    Filed: October 28, 2009
    Date of Patent: February 4, 2014
    Assignee: Eaton Corporation
    Inventors: Christopher Suhocki, Michael J. Sitar
  • Publication number: 20140026565
    Abstract: Various systems and methods are provided for routing exhaust from an engine. In one example, a system includes a high pressure turbine and a low pressure turbine. The system further includes a first passage for routing exhaust from a first subset of cylinders, bypassing the high pressure turbine, to upstream of the low pressure turbine in an exhaust passage of the engine, and a second passage for routing exhaust from a second, different, subset of cylinders to upstream of the high pressure turbine.
    Type: Application
    Filed: July 25, 2012
    Publication date: January 30, 2014
    Inventors: Eric David Peters, Chirag Bipinchandra Parikh
  • Patent number: 8615999
    Abstract: A twin turbo assembly is provided for an automotive vehicle that includes a first and second air intake for, a first and second turbo charger that includes, but is not limited to a first and second compressor connected to the first air intake, a first and second intake duct connecting the first turbo charger to a combustion engine. A first and second bypass valve is provided to connect the first and second air intake, respectively to the first and second intake duct bypassing the first and second compressor. Overpressure inside the intake ducts can be discharged to a volume between the air filter and the respective compressor. The released pressure prevents or at least reduces the risk that compressed air inside the intake ducts may flow against the first compressor and the second compressor, so that the noise emission associated with this backflow is reduced or even prevented.
    Type: Grant
    Filed: August 20, 2010
    Date of Patent: December 31, 2013
    Assignee: GM Global Technology Operations LLC
    Inventor: Per Andersson
  • Patent number: 8615998
    Abstract: A first turbocharger comprises a first center housing and a first return passage. A second turbocharger comprises a second center housing and a second return passage. The first return passage joins the second return passage at a junction. The length of the second return passage from the second center housing to the junction is longer than that of the first return passage from the first center housing to the junction. A bellows-shaped vibration absorption portion is provided at the second return passage. The first return passage comprises a first upstream return passage and a first downstream return passage, and the first upstream and downstream return passages are connected to each other via the flexible hose.
    Type: Grant
    Filed: June 22, 2011
    Date of Patent: December 31, 2013
    Assignee: Mazda Motor Corporation
    Inventors: Yasushi Niwa, Kazuaki Nishimura, Satoshi Nishizaka, Hiroaki Deguchi
  • Publication number: 20130333360
    Abstract: A secondary air injection system supplying some of air introduced into an intake manifold to an exhaust manifold may include: an electric supercharger compressing air introduced through an air duct; throttle valves installed at an upstream of the intake manifold and controlling the amount of air introduced into the intake manifold by controlling the amount of air passing through the electric supercharger; secondary air valves installed on branching paths branched from intake, lines that link the electric supercharger and the throttle vales and controlling the amount of air for secondary air injection; and an injector that post-combusts exhaust gas discharged from an engine by injecting secondary air passing through the secondary air valve to a runner of the manifold.
    Type: Application
    Filed: December 18, 2012
    Publication date: December 19, 2013
    Applicant: Hyundai Motor Company
    Inventors: Dong Hee HAN, Hyuk Im, Seung Kook Han, Cheolho Park, Jaeyoung Jeun, Jae Hyeok Choi, Jong II Park
  • Patent number: 8590306
    Abstract: There are provided first and second water supply passages to supply cooling water from an engine to first and second center housings of first and second turbochargers, and first and second return passages to return the cooling water from the first and second turbochargers to the engine. A cooling-water connection portion of the first water supply is located above the level of a cooling-water connection portion of the second water supply passage. A vapor releasing passage is provided between the second turbocharger and an upper tank provided on the outside of an engine body at a position located above the connection portion of the second return passage of the second turbocharger. Accordingly, the function of vapor releasing from the first and second turbochargers can be improved, thereby increasing the layout flexibility around the engine.
    Type: Grant
    Filed: June 24, 2011
    Date of Patent: November 26, 2013
    Assignee: Mazda Motor Corporation
    Inventors: Yasushi Niwa, Kazuaki Nishimura, Satoshi Nishizaka, Hiroaki Deguchi
  • Publication number: 20130283781
    Abstract: A first stage turbocharger configured to receive an ambient intake air stream. A compressor of the first stage turbocharger coupled to a first intercooler. The first intercooler coupled to a turboexpander stage. The turbine of the turboexpander discharging an expanded air stream to an intake manifold of an engine. The expanded airstream having a temperature of less than the ambient intake air stream, thereby reducing enabling operation of the engine under high load conditions while maintaining reduced emissions.
    Type: Application
    Filed: April 27, 2012
    Publication date: October 31, 2013
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Adam Edgar Klingbeil, Thomas Michael Lavertu
  • Patent number: 8567192
    Abstract: A system is provided for controlling an air handling system for an internal combustion engine. A dual-stage turbocharger includes a high-pressure compressor and variable geometry turbine combination fluidly coupled to a low-pressure compressor and variable geometry turbine combination. A control circuit includes a memory having instructions stored therein that are executable by the control circuit to determine a target low-pressure compressor ratio, a target high-pressure compressor ratio, a target high-pressure compressor inlet temperature and a target high-pressure compressor inlet pressure as a function of a target outlet pressure of the high-pressure compressor and a temperature, a pressure and a target flow rate of air entering the air inlet of the low-pressure compressor, and to control the geometries of the low-pressure and high-pressure turbines as a function of the target low-pressure compressor ratio the target high-pressure compressor ratio respectively.
    Type: Grant
    Filed: September 25, 2011
    Date of Patent: October 29, 2013
    Assignee: Cummins, Inc.
    Inventors: John N. Chi, John M. Mulloy, Sriram S. Popuri, Timothy R. Frazier, Martin T. Books, Divakar Rajamohan, Indranil Brahma, Xi Wei
  • Patent number: 8561404
    Abstract: Turbocharger supercharged internal combustion engine, of which the exhaust manifold (22) comprises a first outlet (20) constantly supplying a turbine (18) for driving a compressor (12), a second outlet (34) equipped with means of sealing (36) synchronized with the rotation of the engine in order to supply a recycling conduit (46) of exhaust gas and a third outlet connected by a by-pass conduit (58) at the outlet of the turbine (18).
    Type: Grant
    Filed: December 11, 2007
    Date of Patent: October 22, 2013
    Inventor: Jean Frederic Melchior
  • Patent number: 8555638
    Abstract: An internal combustion engine includes a plurality of combustion cylinders, at least one turbocharger, an air supply line, an exhaust gas line and an exhaust gas recirculation system. An exhaust manifold of the exhaust gas line may have both non-direction specific and modular pulse exhaust manifold elements. If the internal combustion engine has dual cylinder banks, an exhaust gas balance tube may extend between exhaust gas lines of the cylinder banks and be fluidly connected to an exhaust manifold between the ends thereof.
    Type: Grant
    Filed: April 14, 2011
    Date of Patent: October 15, 2013
    Assignee: Caterpillar Inc.
    Inventors: Aaron Luft, Lucian Stanciu, Catalin Tiru, Jeremy Byrd
  • Patent number: 8544266
    Abstract: An exhaust-gas aftertreatment system for an internal combustion engine of a vehicle includes at least one exhaust line, at least one turbocharger and at least one exhaust-gas converter. The at least one exhaust-gas converter is provided between the internal combustion engine and the at least one turbocharger and has a first volume of at least 0.6 liters. A method for purifying exhaust gas and a vehicle having the system, are also provided.
    Type: Grant
    Filed: January 13, 2010
    Date of Patent: October 1, 2013
    Assignees: EMITEC Gesellschaft fuer Emissionstechnologie mbH, Borg Warner Inc.
    Inventors: Rolf Brück, Volker Jörgl
  • Patent number: 8544269
    Abstract: An engine (100) provided with a variable series supercharging system (7) composed of a high-pressure supercharger (10) and a low-pressure supercharger (20), a supercharging pressure sensor (63) for detecting the pressure of intake air pressurized by the variable series supercharging system (7), a high-pressure supercharger rotation sensor (61) for detecting the rotational speed of the high-pressure supercharger (10), a variable actuator (14) for adjusting the capacity of the high-pressure supercharger (10), and a control device (60) capable of controlling the variable actuator (14). The control device (60) controls the variable actuator (14) based on detection signals from the supercharging pressure sensor (63) and the high-pressure supercharger rotation sensor (61).
    Type: Grant
    Filed: September 17, 2009
    Date of Patent: October 1, 2013
    Assignee: Yanmar Co., Ltd.
    Inventors: Takeshi Takahashi, Hidenori Nomura, Kazuki Maetani, Terumitsu Takahata, Takao Kawabe, Kazuhiro Takenaka
  • Patent number: 8539770
    Abstract: An internal combustion engine including an exhaust arrangement comprises a first exhaust duct and a second exhaust duct. A valve arrangement preferably comprising separate first and second exhaust valves associated with each cylinder, to selectively direct exhaust from engine to the first exhaust duct during a first exhaust period, and to the second exhaust duct during a subsequent second exhaust period. A turbine having an inlet is connected to the first exhaust duct; and a compressor drivingly connected to and driven by the turbine, has an inlet connected to second duct. The compressor, driven by the turbine extracting energy from the exhaust, reduces the back pressure in the exhaust system reducing pumping losses, with the second duct bypassing the turbine in the second exhaust period such that the turbine also does not increase the exhaust back pressure at least during the main second exhaust phase.
    Type: Grant
    Filed: October 16, 2009
    Date of Patent: September 24, 2013
    Assignee: Loughborough University
    Inventor: Andrew Morgan Williams
  • Patent number: 8534066
    Abstract: A two-stage turbocharged engine system is provided. The two-stage turbocharged engine system includes an internal combustion engine, a high-pressure turbocharger having a high-pressure turbine for rotating a high-pressure compressor through a connecting shaft, and a low-pressure turbocharger having a low-pressure turbine for rotating a low-pressure compressor by a connecting shaft. The two-stage turbocharged engine system also includes a low-pressure intake line for fluidly connecting the outlet of low-pressure compressor to the inlet of high-pressure compressor, a high-pressure intake line for fluidly connecting the outlet of high-pressure compressor to an air cooler, and a bypass device for selectively fluidly connecting a first branching point located in low-pressure intake line to a second branching point located in high-pressure intake line to thereby bypass the high-pressure compressor. The bypass device is located closer to the low-pressure compressor than to the high-pressure compressor.
    Type: Grant
    Filed: August 20, 2010
    Date of Patent: September 17, 2013
    Assignee: GM Global Technology Operations LLC
    Inventors: Roberto Cavallo, Roberto Golisano, Gianmarco Boretto, Eugenio Manta
  • Patent number: 8522551
    Abstract: An apparatus for determining an abnormality of a control valve is applied to an internal combustion engine having a first supercharger, a second supercharger, a first control valve, and a second control valve. The apparatus includes an electronic control unit to obtain two supercharging-pressure-corresponding-values before and after an opening degree of the first control valve is changed during a period in which the engine is operated in a specific operating state under which the first supercharger supercharges the engine more efficiently than the second supercharger, and to determine whether or not the second control valve is abnormal based on the two values with respect to the change of the opening degree of the first control valve.
    Type: Grant
    Filed: July 16, 2009
    Date of Patent: September 3, 2013
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Tetsuji Tomita, Taku Ibuki, Yoshihisa Hirosawa
  • Patent number: 8511066
    Abstract: A two-stage turbocharging system with a high pressure (HP) turbine and a low pressure (LP) turbine, exhaust piping connecting an engine to the HP turbine inlet, exhaust piping connecting the HP turbine outlet to the LP turbine inlet, piping connecting the LP turbine outlet to an aftertreatment device, and branched bypass piping having an inlet and first and second branches, the inlet connected to the engine to HP turbine inlet exhaust piping, the first branch outlet connected to the LP turbine inlet, the second branch outlet connected to the aftertreatment device, and an R2S valve in the first branch and a warm-up valve in said second branch. By opening of the valve, exhaust gas can bypass both the HP and LP turbines and flow to, e.g., the catalytic converter. The R2S valve and the warm-up valve may be integrated into a single exhaust flow control unit.
    Type: Grant
    Filed: February 24, 2009
    Date of Patent: August 20, 2013
    Assignee: BorgWarner Inc.
    Inventors: Michael E. Harris, Brock Fraser
  • Patent number: 8511288
    Abstract: The invention relates to a method for operating an internal combustion engine (1) with two-stage turbocharging by a low-pressure exhaust gas turbine (6) and a high-pressure exhaust gas turbine (7), the low-pressure exhaust gas turbine (6) being positioned downstream of the high-pressure exhaust gas turbine (7) in the exhaust system (3) of the internal combustion engine (1), and the high-pressure exhaust gas turbine (7) being provided with a bypass line (11) with a control valve (12).
    Type: Grant
    Filed: January 19, 2010
    Date of Patent: August 20, 2013
    Assignee: AVL List GmbH
    Inventor: Paul Kapus
  • Patent number: 8499559
    Abstract: A turbine housing for a high-pressure turbo-charger of a turbo-charger engine system for an internal combustion engine is provided that includes, but is not limited to a low-pressure charger opening for taking up a low-pressure turbo-charger and a high-pressure charger opening for taking up a high-pressure turbo-charger. A high-pressure exhaust opening is attached to a corresponding flange at an exhaust manifold of the engine and there is a short-cut exhaust opening with a high-pressure turbine by-pass valve area attached to a corresponding flange at the exhaust manifold. An external connection opening is attached to a muffler, a waste gate valve area being provided in the close vicinity of the external connection opening.
    Type: Grant
    Filed: March 22, 2007
    Date of Patent: August 6, 2013
    Assignee: GM Global Technology Operations LLC
    Inventors: Pal Axelsson, Hans Drangel, Björn Lind
  • Patent number: 8495876
    Abstract: The present invention relates to a two-stage supercharging system for an internal-combustion engine (10) comprising at least one cylinder (12) with an intake distributor (16) and an exhaust manifold (18), as well as a recirculation line (78) for recycling the exhaust gas to the intake of said engine, said system comprising a high-pressure supercharging stage (22) with a turbocharger including an expansion turbine (26) connected to a compressor (30) and a low-pressure supercharging stage (24) with a turbocharger including an expansion turbine (28) connected to a compressor (32), and exhaust gas purification means arranged between exhaust outlet (40) and turbine (26) of the high-pressure turbocharger. According to the invention, the system comprises an exhaust gas bypass branch (70) going from outlet (40) of the engine exhaust and ending at turbine (28) of low-pressure turbocharger (24).
    Type: Grant
    Filed: April 9, 2010
    Date of Patent: July 30, 2013
    Assignee: IFP
    Inventors: Alexandre Pagot, Eric Watel
  • Patent number: 8495992
    Abstract: A method of controlling exhaust gas flow in an internal combustion engine system, and products and systems using same.
    Type: Grant
    Filed: February 18, 2009
    Date of Patent: July 30, 2013
    Assignee: BorgWarner Inc.
    Inventor: David B. Roth
  • Patent number: 8490395
    Abstract: A regulated two-stage turbocharger system is provided. The turbocharger system includes high-pressure and low-pressure turbochargers in communication with one another. The turbocharger system includes a valve system having valves that are independently controllable so as to selectively control the gas flow into the turbine portions of the high-pressure turbocharger and the low-pressure turbocharger. The valves are asymmetric with differing perimeters, diameters, and sizes with respect to one another.
    Type: Grant
    Filed: December 21, 2010
    Date of Patent: July 23, 2013
    Assignee: BorgWarner Inc.
    Inventors: Thomas A. Grissom, Matthew B. Delavan
  • Patent number: 8479512
    Abstract: An internal combustion engine includes a plurality of cylinders, an air intake line and an exhaust line collecting exhaust gas. The engine also includes an EGR line for rerouting a part of the exhaust gas from the exhaust line towards the air intake line and at least a first turbocharger comprising a first turbine driven by the exhaust gas flowing towards the atmosphere, linked to a first compressor located on the air intake line. The engine further includes a variable geometry EGR turbine located on the EGR line, driven by the EGR gas flowing in the EGR line. Thus, thanks to the pressure reduction occurring in the turbine, the EGR gas temperature is lowered, and less cooling power from the engine cooling system is required to cool down the EGR.
    Type: Grant
    Filed: June 13, 2012
    Date of Patent: July 9, 2013
    Assignee: Renault Trucks
    Inventors: Nicolas Auffret, Nicolas Dronniou
  • Publication number: 20130167528
    Abstract: An internal combustion engine has first and second non-deactivatable cylinder banks. Each cylinder bank is assigned exhaust lines which extend from exhaust manifolds. First and second exhaust-gas turbocharger in the exhaust line are assigned to the first and second cylinders, respectively. A first catalytic converter in the first exhaust line contains the first exhaust-gas turbocharger, and is arranged downstream of the first exhaust-gas turbocharger as viewed in the flow direction of the exhaust gas of the first cylinder bank. A second catalytic converter in the second exhaust line contains the second exhaust-gas turbocharger, and is arranged downstream of the second exhaust-gas turbocharger as viewed in the flow direction of the exhaust gas of the second cylinder bank. A flow transfer line is arranged between the first and the second exhaust line, and a first control element, by an exhaust-gas mass flow passing through the flow transfer line can be regulated.
    Type: Application
    Filed: December 13, 2012
    Publication date: July 4, 2013
    Applicant: Dr. Ing. h.c. F. Porsche Aktiengesellschaft
    Inventor: Dr. Ing. h.c. F. Porsche Aktiengesellschaft
  • Patent number: 8459025
    Abstract: A device for controlling the exhaust-gas turbocharging of an internal combustion engine having an exhaust-gas turbocharging device, has an estimated value unit for determining a mass flow through a turbine system, a regulating unit for determining a regulating exhaust-gas back pressure as a function of a nominal charge pressure and an actual charge pressure, and also a unit for generating at least one actuating signal for at least one actuator of the turbine system as a function of the regulating exhaust-gas back pressure and of the mass flow through the turbine system, wherein the estimated value unit has a turbine system model for determining an estimated overall efficiency of the turbine system and a model for determining an estimated overall efficiency of a compressor system having at least two compressors, and wherein the regulating unit is set up to determine the regulating exhaust-gas back pressure using the estimated overall efficiencies
    Type: Grant
    Filed: March 2, 2009
    Date of Patent: June 11, 2013
    Assignee: Continental Automotive GmbH
    Inventor: Anselm Schwarte
  • Patent number: 8459026
    Abstract: A central turbocharger configuration in a V-engine with two turbochargers is described. In one example approach, a V-engine includes first and second in-board exhaust manifolds; first and second turbines coupled to the first and second manifolds, respectively; and a passage intermediate to and coupling outlets of the first and second turbines; and a junction branching from the passage downward into the valley.
    Type: Grant
    Filed: January 21, 2010
    Date of Patent: June 11, 2013
    Assignee: Ford Global Technologies, LLC
    Inventors: Patrick Matthews, Fadi Maroun Naddaf
  • Patent number: 8453447
    Abstract: A two-stage exhaust gas turbocharger for an internal-combustion engine having an exhaust manifold is provided. In the exhaust gas flow direction a first high-pressure turbocharger and a second high-pressure turbocharger are arranged parallel to one another and a low-pressure turbocharger is arranged in series behind the latter. The two high-pressure turbine housings can be arranged on the exhaust manifold on one side and the low-pressure turbine housing can be arranged on the exhaust manifold on the other side. The exhaust gas coming from the high-pressure turbine housings is guided through a flow duct in or on the exhaust manifold to the low-pressure turbine housing. By way of this construction of the two-stage exhaust gas turbocharging, a compact construction is achieved resulting in cost savings.
    Type: Grant
    Filed: April 14, 2011
    Date of Patent: June 4, 2013
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Wilfried Barth, Gerald Gruber, Stefan Ablinger, Werner Mietschnig
  • Patent number: 8448616
    Abstract: An internal combustion engine including an air intake pressurization device having an outlet from which air at a pressure substantially greater than ambient air pressure is expelled, an expansible combustion chamber into which air is received from the device outlet and from which exhaust gases are expelled, first and second intake valves and one or more exhaust valves, each valve having open and closed states. The combustion chamber is in periodic fluid communication with the device outlet through at least one of the first and second intake valves, and exhaust gases are expelled from the combustion chamber via the exhaust valve(s).
    Type: Grant
    Filed: January 22, 2010
    Date of Patent: May 28, 2013
    Assignee: Turbo Innovation, LLC
    Inventor: William H. Kirk
  • Publication number: 20130125544
    Abstract: A method for switching between low- and high-dilution combustion modes in an internal combustion engine having an intake passage with an exhaust-driven turbocharger, a crankshaft-driven positive displacement supercharger downstream of the turbocharger and having variable boost controllable with a supercharger bypass valve, and a throttle valve downstream of the supercharger. The current combustion mode and mass air flow are determined. A switch to the target combustion mode is commanded when an operating condition falls within a range of predetermined operating conditions. A target mass air flow to achieve a target air-fuel ratio corresponding to the current operating condition and the target combustion mode is determined. The degree of opening of the supercharger bypass valve and the throttle valve are controlled to achieve the target mass air flow. The amount of residual exhaust gas is manipulated.
    Type: Application
    Filed: November 16, 2012
    Publication date: May 23, 2013
    Applicant: ROBERT BOSCH GMBH
    Inventor: Robert Bosch GmbH
  • Patent number: 8443601
    Abstract: A method for controlling the wastegate in a turbocharged internal combustion engine including the steps of: determining, during a design phase, a control law which provides an objective opening of a controlling actuator of the wastegate according to the supercharging pressure; determining an objective supercharging pressure; measuring an actual supercharging pressure; determining a first open loop contribution of an objective position of a controlling actuator of the wastegate by means of the control law and according to the objective supercharging pressure; determining a second closed loop contribution of the objective position of the controlling actuator of the wastegate; and calculating the objective position of the controlling actuator of the wastegate by adding the two contributions.
    Type: Grant
    Filed: October 15, 2010
    Date of Patent: May 21, 2013
    Assignee: Magneti Marelli S.p.A.
    Inventors: Marco Panciroli, Francesco Alunni, Stefano Sgatti
  • Patent number: 8434306
    Abstract: An engine comprises an intake manifold, first and second cylinder banks, a turbocharger, a flow passage, and first and second cylinder banks. The first and second cylinder banks are each in fluid communication with a respective output of the intake manifold. The turbocharger is associated with the second cylinder bank and includes a compressor input port and a compressor output port. The flow passage is in fluid communication with each of the compressor output port and an input of the intake manifold.
    Type: Grant
    Filed: February 25, 2011
    Date of Patent: May 7, 2013
    Assignee: Honda Motor Co., Ltd.
    Inventor: James S. Robinson
  • Patent number: 8429912
    Abstract: An internal combustion engine is disclosed, comprising at least one first compression device and at least one second compression device which is connected in series relative to the first compression device. At least one bypass pipe bypasses at least one compression device. At least one controllable valve is arranged in the at least one bypass pipe such that the amount of fluid which can be recirculated around the compression device can be controlled.
    Type: Grant
    Filed: June 27, 2011
    Date of Patent: April 30, 2013
    Assignee: GE Jenbacher GmbH & Co OHG
    Inventors: Thomas Guggenberger, Markus Haidn, Johann Klausner
  • Patent number: 8424305
    Abstract: A turbocharger unit (18) for an internal combustion engine (10) with at least one exhaust line (15, 16) for conducting exhaust gases away from the combustion chamber (11) of the engine and at least one inlet line (12) for supplying air to the combustion chamber. The turbocharger unit includes a turbine (17) which interacts with a compressor (19) for extracting energy from the exhaust gas flow of the engine and pressurizing the inlet air of the engine. The compressor (19) is of radial type and provided with an impeller with backswept blades (35) where the blade angle (?b2) between an imaginary extension of the center line of the blade between root section and tip section in the direction of the outlet tangent and a line (36) which connects the center axis of the impeller to the outer tip of the blade is at least roughly 45°. The turbine (17) which drives the compressor (19) is of radial type.
    Type: Grant
    Filed: November 15, 2005
    Date of Patent: April 23, 2013
    Assignee: Volvo Lastvagnar AB
    Inventors: Lars Sundin, Magnus Ising, Sebastian Krausche, Per Andersson
  • Publication number: 20130090832
    Abstract: The present disclosure relates to dual compression engine boosting systems utilizing both a turbocharger and a supercharger and control systems relating to relative activation and deactivation of the boosting devices. Various Exhaust Gas Recirculation (EGR) configurations are also disclosed for the dual compression engine boosting systems.
    Type: Application
    Filed: May 25, 2012
    Publication date: April 11, 2013
    Applicant: Eaton Corporation
    Inventors: Karen Evelyn Bevan, Douglas Anthony Hughes, Sean Keidel, Benjamin James Morris, Jeremy Novak, Martin Dale Pryor, Christopher Suhocki, Philip William Wetzel
  • Publication number: 20130087127
    Abstract: Disclosed is a power system comprising an internal combustion engine. A fan is associated with the engine and configured for providing an air flow. The power system further comprises an EGR system having an air cooled, HT EGR cooler configured for cooling recirculated exhaust gas, wherein the HT EGR cooler is positioned downstream of the internal combustion engine. The HT EGR cooler is further positioned such that the air flow travels across the outside of the HT EGR cooler. The EGR system further comprises an air cooled, LT EGR cooler is configured for further cooling at least a portion of the recirculated exhaust gas, wherein the LT EGR cooler is positioned downstream of the HT EGR cooler. The LT EGR cooler is further positioned such that the air flow travels across the outside of the LT EGR cooler.
    Type: Application
    Filed: October 7, 2011
    Publication date: April 11, 2013
    Inventors: Erik L. Piper, Alan D. Sheidler, Craig W. Lohmann
  • Patent number: 8413441
    Abstract: An engine system for a vehicle is provided, comprising an internal combustion engine including an exhaust system; a first turbine including a first wastegate and arranged along a first branch of the exhaust system, a second turbine including a second wastegate and arranged along a second branch of the exhaust system; a first exhaust gas sensor arranged along the first branch of the exhaust system downstream of the first turbine and first wastegate; a second exhaust gas sensor arranged along the second branch of the exhaust system downstream of the second turbine and the second wastegate; and a control system configured to command the first and second wastegates to a closed or open position and to indicate one of said wastegates as unresponsive to said command in response to a temperature difference between the first and second branches indicated by the first and second exhaust gas sensors.
    Type: Grant
    Filed: August 19, 2011
    Date of Patent: April 9, 2013
    Assignee: Ford Global Technologies, LLC
    Inventor: Ross Dykstra Pursifull
  • Patent number: 8407997
    Abstract: The invention relates to a multistep turbocharger arrangement (1) for an internal combustion engine with a high-pressure step (2), with a low-pressure step (3) which can be brought into operative connection to the high-pressure step (2) over a fluid passage system (4) which can be opened and closed, and with a control unit (5) for controlling the operative connection between the high-pressure step (2) and the low-pressure step (3), wherein the control unit (5) and the fluid passage system (4) are integrated in an engine exhaust manifold (6) which is disposed between the high-pressure step (2) and the low-pressure step (3).
    Type: Grant
    Filed: October 24, 2007
    Date of Patent: April 2, 2013
    Assignee: BorgWarner Inc.
    Inventors: Michael Stilgenbauer, Gerald Schall
  • Publication number: 20130067917
    Abstract: Various apparatuses and systems are provided for a turbocharger. In one example, the turbocharger system includes a first turbine having an exhaust flow outlet and a second turbine having an exhaust flow inlet. The turbocharger system further includes a transition conduit fluidically coupling the outlet of the first turbine to the inlet of the second turbine, the transition conduit including an expansion region upstream of a first bend, and a bypass which routes exhaust flow around the first turbine, the bypass having an exhaust flow outlet fluidically coupled to the transition conduit downstream of the expansion region.
    Type: Application
    Filed: September 15, 2011
    Publication date: March 21, 2013
    Inventors: Jonathan Nagurney, Daniel Loringer, Kendall Swenson, Lukas Johnson, Rodrigo Rodriguez Erdmenger, Amit Sharma, Swaminathan Gopalakrishnan
  • Patent number: 8397499
    Abstract: Methods are provided for controlling a turbocharged engine having a throttle and a turbocharger. One example method comprises, moving the throttle during boosted conditions, separating out effects on the throttle inlet pressure into a first portion corresponding to disturbances caused by the movement of the throttle, and a second, remaining, portion. The method further comprises adjusting the turbocharger based on the second portion and not the first portion.
    Type: Grant
    Filed: August 24, 2009
    Date of Patent: March 19, 2013
    Assignee: Ford Global Technologies, LLC
    Inventors: Jeffrey Allen Doering, John Eric Rollinger, De-Shiou Chen
  • Patent number: 8397503
    Abstract: Two turbochargers are arranged vertically near a one side of a crank-shaft direction at a one-side face of an engine body so that the large-size turbocharger is located above the small-sized turbocharger, and an exhaust-gas purification device is arranged an open space made on the other side of the crank-shaft direction so that its exhaust inlet is located above and its outlet is located below. Accordingly, the turbochargers and the exhaust-gas purification device can be arranged compactly and the layout of some devices around the engine can be facilitated.
    Type: Grant
    Filed: May 5, 2010
    Date of Patent: March 19, 2013
    Assignee: Mazda Motor Corporation
    Inventors: Yasushi Niwa, Atsuhiro Hatabu, Takashi Sasada, Eiji Nakai
  • Publication number: 20130055711
    Abstract: Methods and systems are provided for operating a turbocharged engine. An engine system comprises a turbocharger, a bypass path, and a turbo-compound unit. The turbocharger may include a turbine mechanically coupled to a compressor. The turbo-compound unit may include a turbine mechanically coupled to a load, such as a generator. The turbo-compound unit may be coupled in a bypass path around the turbocharger turbine. In this manner, thermodynamic energy flowing through the bypass path may be harvested to increase the engine-operating efficiency. Further, gas flow through the bypass path may be adjusted to potentially improve the transient response of the turbocharger.
    Type: Application
    Filed: September 7, 2011
    Publication date: March 7, 2013
    Inventors: Douglas C. Hofer, Anthony Furman, Thomas Lavertu
  • Patent number: 8387385
    Abstract: A turbocharger system includes first and second turbines arranged such that exhaust gas passes through the first turbine then the second turbine. A bypass channel is configured such that exhaust gas entering the channel passes only through the second turbine. A valve positioned in the bypass channel regulates the flow of gas therethrough. The valve accelerates a stream of gas and focuses the stream toward the second turbine such that a large part of the added velocity of the stream is preserved as it enters the second turbine. Operation of the valve may be controlled so as to maintain the valve in a closed position while exhaust gas pressure above the first turbine pressure is below a first threshold, to progressively open the valve as the pressure increases above the first threshold, and to maintain the valve in a full-open position while the pressure is above a second threshold.
    Type: Grant
    Filed: July 1, 2005
    Date of Patent: March 5, 2013
    Assignee: The United States of America, as represented by the Administrator of the U.S. Environmental Protection Agency
    Inventors: Charles L. Gray, Jr., David James Haugen
  • Patent number: 8387243
    Abstract: A method of manufacturing a multistage exhaust turbocharger having a high-pressure stage turbocharger and a low-pressure stage turbocharger includes providing a high-pressure turbine housing of the high-pressure stage turbocharger, the high-pressure turbine housing being integrally formed with the exhaust manifold by casting or welding, assembling constituent parts of the high-pressure stage turbocharger using the high-pressure turbine housing as a reference, after the assembling constituent parts of the high-pressure stage turbocharger, attaching the low-pressure stage turbocharger to the high-pressure stage turbocharger by attaching a low-pressure turbine housing to a low-pressure turbine connection flange, and after the attaching the low-pressure stage turbocharger, attaching an air supply channel to connect between a supply air outlet of the low-pressure stage turbocharger and a supply air inlet of the high-pressure stage turbocharger, wherein the low-pressure turbocharger is disposed below the high-press
    Type: Grant
    Filed: August 3, 2007
    Date of Patent: March 5, 2013
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Byeongil An, Takashi Shiraishi, Toru Kikuchi, Mamoru Wakita
  • Patent number: 8371278
    Abstract: A high flow EGR system for an internal combustion engine having a pair of series connected EGR coolers and a water droplet condensation collector and reservoir connected to the gas flow. The reservoir feeds a pump which is actuated to inject the liquid to the engine adjacent each cylinder for uniform distribution of the water to the engine cylinders. The pump is controlled to inject the water at appropriate conditions during the engine operating cycle.
    Type: Grant
    Filed: April 23, 2010
    Date of Patent: February 12, 2013
    Assignee: Deere & Company
    Inventors: Richard E. Winsor, Erik L. Piper
  • Patent number: 8371108
    Abstract: Exhaust temperatures in emission control devices may be directly controlled by an intake air throttle, fuel injection timing, and exhaust pressure when an emission control device is placed between two variable geometry turbocharger exhaust turbines and coupled to a combustion engine. Such an approach may substantially raise the temperature of the exhaust aftertreatment devices in an emission control device during non-warmed exhaust conditions, leading to faster catalytic light-off.
    Type: Grant
    Filed: August 4, 2009
    Date of Patent: February 12, 2013
    Assignee: Ford Global Technologies, LLC
    Inventor: Timothy Sung Jae Chyo
  • Patent number: 8365527
    Abstract: A cooling circuit and an independent heat recovery circuit are associated with an internal combustion engine. A coolant is circulated a pump in a first and a second cooling sub-circuit. An increase in pressure in a work medium is achieved within the heat recovery circuit by a pump. This work medium is changed from liquid aggregate state to vaporous aggregate state and back to the liquid aggregate state in heat exchangers. This work medium is divided after the pump into two parallel partial flows and is changed into vaporous state in a first parallel branch in an EGR heat exchanger through which recycle exhaust gas flows and in a second parallel branch in an exhaust gas heat exchanger through flow exhaust gas downstream of the low-pressure turbine flows. This vaporous work medium is then fed to an expander and is then conducted through a cooled condenser and, liquefied again.
    Type: Grant
    Filed: December 8, 2009
    Date of Patent: February 5, 2013
    Assignee: MAN Nutzfahrzeuge Oesterreich AG
    Inventors: Gottfried Raab, Markus Raup, Josef Klammer
  • Patent number: 8359858
    Abstract: A method for reducing imbalance between multiple compressors supplying air to an engine is disclosed. In one embodiment, engine boost pressure is limited by choking flow through a compressor. The method may reduce compressor surge during some operating conditions.
    Type: Grant
    Filed: October 30, 2007
    Date of Patent: January 29, 2013
    Assignee: Ford Global Technologies, LLC
    Inventor: Ross Dykstra Pursifull
  • Patent number: 8359859
    Abstract: Provided are at least one exhaust turbine turbocharger (6) that has a turbine section (6a) and a compressor section (6b) and is constantly set in an operating mode when an engine unit (2) is in operation; at least one hybrid exhaust turbine turbocharger (7) that has a turbine section (7a), a compressor section (7b), and a generator (29) and is set to operate in parallel with the exhaust turbine turbocharger (6) when the engine unit (2) is in operation; and a controller (C) that receives a signal from a rotation sensor that is attached to the exhaust turbine turbocharger (6) and that detects the rotation speed of the exhaust turbine turbocharger (6), gives a command signal to the generator (29) in accordance with the signal, and controls an amount of electricity to be generated by the generator (29) so that the rotation speed of the hybrid exhaust turbine turbocharger (7) matches the rotation speed of the exhaust turbine turbocharger (6).
    Type: Grant
    Filed: April 10, 2009
    Date of Patent: January 29, 2013
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventor: Keiichi Shiraishi
  • Patent number: 8347609
    Abstract: Methods and systems are provided for operating an engine including an SCR catalyst downstream of an exhaust turbine and a particulate filter upstream of the turbine. In one example, the method comprises, adjusting a turbine wastegate to adjust a catalyst temperature to a desired catalyst temperature.
    Type: Grant
    Filed: December 23, 2009
    Date of Patent: January 8, 2013
    Assignee: Ford Global Technologies, LLC
    Inventors: Jeffrey Scott Hepburn, William Charles Ruona, Brien Lloyd Fulton, Gopichandra Surnilla, Eric Matthew Kurtz