Plural Superchargers Patents (Class 60/612)
  • Patent number: 9010114
    Abstract: An air charge system for an internal combustion engine may include a charge path having a charge inlet configured to receive air, and a charge outlet configured to convey air to an intake of the internal combustion engine; a first compressor in the charge path, the first compressor being driven by a motor and configured to receive the air from the charge inlet and increase temperature, pressure and volumetric flow rate of the air in the charge path; a first valve in the charge path downstream of the first compressor configured to divert at least a portion of the air leaving the first compressor from exiting the charge path through the charge outlet; and a controller configured to modulate at least one of the first valve and a speed of the motor to adjust a volumetric flow rate of air leaving the charge outlet.
    Type: Grant
    Filed: February 19, 2013
    Date of Patent: April 21, 2015
    Assignee: The Boeing Company
    Inventors: David S. Krug, Travis A. Reynolds, Ian Whiteside, Christopher J. Thompson, Phil McGovern, Steve Higginson, Vladimir Anton
  • Patent number: 9003794
    Abstract: A turbocharger system comprises a first relatively small turbocharger and a second relatively large turbocharger connected in series and an exhaust gas flow control valve. The exhaust control valve has an inlet port communicating with the exhaust gas flow upstream of the first turbine a first outlet port communicating with the exhaust flow downstream of said first turbine but upstream of said second turbine, and a second outlet port communicating with the exhaust flow downstream of said second turbine. The valve is operable to selectively permit or block flow through the first and second outlet ports.
    Type: Grant
    Filed: September 6, 2012
    Date of Patent: April 14, 2015
    Assignee: Cummins Turbo Technologies Limited
    Inventors: Lee J. Robinson, James A. McEwen
  • Patent number: 8991178
    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: Grant
    Filed: December 13, 2012
    Date of Patent: March 31, 2015
    Assignee: Dr. Ing. h.c. F. Porsche Aktiengesellschaft
    Inventors: Jochen Schlund, Erwin Rutschmann, Norbert Hemmerlein
  • Patent number: 8991177
    Abstract: An internal combustion engine has at least one cylinder group including a plurality of cylinders and at least one exhaust turbocharger, each cylinder including a plurality of outlet valves for exhaust gas, each outlet valve being assigned an outlet duct which opens into an exhaust manifold and via which the respective exhaust gas, after flowing through the respective outlet valve and outlet duct, can be guided in the direction of an exhaust turbocharger, and first outlet ducts of the cylinders being contoured in the manner of nozzles, and second outlet ducts of the cylinders being contoured in the manner of diffusers.
    Type: Grant
    Filed: October 19, 2011
    Date of Patent: March 31, 2015
    Assignee: Dr. Ing. h.c. F. Porsche Aktiengesellschaft
    Inventors: Erwin Rutschmann, Willi Schultz
  • Publication number: 20150082789
    Abstract: A two-stage turbocharger system for an internal combustion engine is disclosed. The turbocharger system includes a high pressure turbine coupled to an exhaust manifold of the internal combustion engine, and a low pressure turbine having an inlet coupled to the high pressure turbine and an outlet coupled to an exhaust system of the engine. The turbocharger further includes a low pressure compressor having an inlet coupled to environment and an outlet coupled to a high pressure compressor. The high pressure compressor is coupled to an intake manifold of the internal combustion engine. The high pressure turbine is provided with a high pressure by-pass line having a high pressure controlled by-pass valve. The low pressure turbine is provided with a low pressure by-pass line having a low pressure controlled by-pass valve. A controlled valve is provided between the high pressure turbine and the low pressure turbine.
    Type: Application
    Filed: September 23, 2014
    Publication date: March 26, 2015
    Inventors: Hans DRANGEL, Riccardo Franz TURCATO
  • Patent number: 8978359
    Abstract: A turbocharged internal combustion engine disclosed that may comprise an engine block with a first end side opposing a second end side and a two-stage turbocharged system. The two-stage turbocharged system may comprise a low-pressure turbocharger with a first turbine and a first compressor and a high-pressure turbocharger with a second turbine and a second compressor. A turbine connection may fluidly connect the first turbine and the second turbine and a compressor connection fluidly connects the first compressor and the second compressor. The low-pressure turbocharger is mounted at the first end side of the engine block and the high-pressure turbocharger is mounted at a second end side of the engine block.
    Type: Grant
    Filed: August 5, 2011
    Date of Patent: March 17, 2015
    Assignee: Caterpillar Motoren GmbH & Co. KG
    Inventor: Udo Schlemmer-Kelling
  • Publication number: 20150068203
    Abstract: A method is disclosed for controlling a two-stage turbocharger system having low-pressure and high-pressure turbochargers in line, sequentially, with an engine. The turbochargers include a low-pressure (LP) turbine and an LP compressor, and a high-pressure (HP) turbine and an HP compressor. The LP compressor feeds the HP compressor, which feeds the engine intake. The engine exhaust feeds the HP turbine, which feeds the LP turbine. The method determines a total boost pressure, which provides combustion reactant for the engine. The method calculates an LP compressor power from the determined total boost pressure, and an LP turbine flow from the LP compressor power. The low-pressure turbocharger operates at the calculated LP turbine flow. The method calculates an HP compressor power from the determined total boost pressure, and an HP turbine flow from the HP compressor power. The high-pressure turbocharger operates at the calculated HP turbine flow.
    Type: Application
    Filed: September 11, 2013
    Publication date: March 12, 2015
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Yue-Yun Wang, Ibrahim Haskara, Kevin Andrew Gady
  • Patent number: 8973361
    Abstract: Provided is a seal air supply system including: a seal air compressor 73 provided separately from an exhaust gas turbine turbocharger 27 to generate compressed air; a seal air supply passage 77 through which the compressed air is supplied to a seal air supply part 79 as seal air of the exhaust gas turbine turbocharger 27; and a surplus air inlet passage 81 bifurcating from the seal air supply passage 77 and guiding surplus air of the seal air to an outlet side of an intake gas compressor 27a of the exhaust gas turbine turbocharger.
    Type: Grant
    Filed: June 16, 2011
    Date of Patent: March 10, 2015
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Yuuichi Shimizu, Hajime Suzuki, Hideki Nishio
  • Patent number: 8966897
    Abstract: An internal combustion engine having an air intake section (2) which has an air intake line (3), having an exhaust section (4) which has an exhaust line (5), and having at least one exhaust-gas turbocharger (6) which has a compressor (7) in the air intake line (3) and a turbine (8) arranged in the exhaust line (5), characterized by a controllable bypass arrangement (9) which has an air supply line (10) which, as viewed in the flow direction (R) of the intake air, opens into the air intake line (3) down-stream of the compressor (7).
    Type: Grant
    Filed: February 19, 2010
    Date of Patent: March 3, 2015
    Assignee: BorgWarner Inc.
    Inventor: Thomas Hahn
  • Publication number: 20150052891
    Abstract: A turbocharging device of an engine for a vehicle is provided. The turbocharging device includes a turbocharger for turbocharging intake air, an introduction passage connected to an introducing section of a compressor of the turbocharger, a discharge passage connected to a discharging section of the compressor of the turbocharger, a bypass passage connecting the introduction passage to the discharge passage and bypassing the compressor, and a bypass valve for opening and closing the bypass passage. A throttle part throttling a flow passage area of the introduction passage is formed in an inner circumferential surface of a part of the introduction passage, upstream of a connection part of the introduction passage with the bypass passage.
    Type: Application
    Filed: August 18, 2014
    Publication date: February 26, 2015
    Inventors: Yoshiyuki Uehane, Junji Umemura, Atsuhiro Hatabu
  • Patent number: 8959913
    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: Grant
    Filed: September 15, 2011
    Date of Patent: February 24, 2015
    Assignee: General Electric Company
    Inventors: Jonathan Nagurney, Daniel Loringer, Kendall Swenson, Lukas Johnson, Rodrigo Rodriguez Erdmenger, Amit Sharma, Swaminathan Gopalakrishnan
  • Publication number: 20150034408
    Abstract: An internal combustion engine includes a cylinder block defining a cylinder and a cylinder head mounted to the block. The cylinder head supplies air and fuel to the cylinder for combustion therein. The engine also includes an exhaust manifold operatively connected to the cylinder head and having a first outlet and a second outlet configured to exhaust post-combustion gasses from the cylinder. The engine also includes a turbocharging system configured to pressurize an airflow for delivery thereof to the cylinder. The turbocharging system includes a low-flow turbocharger driven by the post-combustion gasses from the first outlet to pressurize the airflow and a high-flow turbocharger driven by the post-combustion gasses from the second outlet to pressurize the airflow. The turbocharging system additionally includes a flow control device for selectively directing the post-combustion gasses to the low-flow and high-flow turbochargers. A vehicle employing such an engine is also disclosed.
    Type: Application
    Filed: August 5, 2013
    Publication date: February 5, 2015
    Applicant: GM Global Technology Operations LLC
    Inventors: Ko-Jen Wu, Dustin Loveland
  • Patent number: 8943823
    Abstract: A fluid handling system for a use with an engine is provided. The fluid-handling system may have a first turbine connected to receive a portion of an exhaust flow from the engine, a first compressor driven by the first turbine to pressurize an airflow, and a heat exchanger configured to receive a remaining portion of the exhaust flow from the engine and the airflow from the first compressor. The fluid-handling system may also have a second turbine connected to receive the airflow from the heat exchanger, and a generator driven by the second turbine to generate power.
    Type: Grant
    Filed: November 18, 2010
    Date of Patent: February 3, 2015
    Assignee: Caterpillar Inc.
    Inventor: Scott B. Fiveland
  • Publication number: 20150027115
    Abstract: A turbocharged internal combustion engine system includes at least one high pressure turbocharger and at least one low pressure turbocharger arranged in series. A fuel source that provides fuel for gaseous fuel induction operation of the engine is connected to inject fuel between the low pressure compressor of the low pressure turbocharger and the high pressure compressor of the high pressure turbocharger.
    Type: Application
    Filed: July 23, 2013
    Publication date: January 29, 2015
    Applicant: Cummins Inc.
    Inventor: Atsuhiko Watanabe
  • Patent number: 8938962
    Abstract: An exhaust system for an engine includes a first exhaust manifold configured to receive exhaust from the engine, a second exhaust manifold configured to receive exhaust from the engine in parallel with the first exhaust manifold, and at least two turbochargers configured to receive exhaust from the first and second exhaust manifolds. The system also includes a first turbocharger valve fluidly connected to one of the at least two turbochargers. The first turbocharger valve is configured to selectively fluidly connect the one of the at least two turbochargers to the first and second exhaust manifolds. The system further includes a recirculation circuit in fluid communication with the first exhaust manifold. The recirculation circuit includes a first recirculation valve configured to regulate passage of exhaust through the recirculation circuit.
    Type: Grant
    Filed: January 31, 2012
    Date of Patent: January 27, 2015
    Assignee: Caterpillar Inc.
    Inventor: David Andrew Pierpont
  • Patent number: 8931274
    Abstract: An engine system may include an electric or mechanical supercharger and an LP-EGR, basically with a turbocharger, an EGR valve, a channel control valve, and a bypass valve, which control the flow rate of external air and exhaust gas, may be integrally operated, and a operation section may be divided into a turbo-lag and low torque section, a mid-load section, and mid/high-load section such that the open amount of EGR valve, channel control valve, and bypass valve may be optimally controlled, such that it may be possible to improve availability for a low-speed/high-load section with turbo-lag reduced, using supercharger and considerably increase the ratio of fuel efficiency improvement in the low-speed/high-load section, using LP-EGR operating with supercharger.
    Type: Grant
    Filed: October 31, 2011
    Date of Patent: January 13, 2015
    Assignee: Hyundai Motor Company
    Inventors: Donghee Han, Dongho Chu, Yoonjoo Kim, Jongil Park, Hongjip Kim, Seungkook Han, Hyuk Im
  • Patent number: 8931271
    Abstract: A method for a turbocharger of a heat engine including a turbine, a compressor, and a by-pass actuator that can be used to control an air flow that does not pass through the turbine. The method includes determining a position set point of the by-pass actuator as a function of a compression ratio set point, a compression ratio measurement, a measurement of the rate of flow through the compressor, a measurement of the pressure downstream from the turbine, a measurement of the pressure downstream from the compressor, a measurement of the temperature upstream from the turbine, and a measurement of the temperature upstream from the compressor. The method can be used to control a supercharging device with a single or dual turbocharger.
    Type: Grant
    Filed: February 11, 2010
    Date of Patent: January 13, 2015
    Assignee: Renault S.A.S.
    Inventors: Laurent Fontvieille, Arnaud Guinois, Philippe Moulin, Olivier Grondin
  • Patent number: 8925317
    Abstract: An exemplary turbocharger system for an internal combustion engine is provided. The turbocharger system includes a first turbine and a second turbine. The first turbine is in fluid communication with the internal combustion engine. The first turbine receives a first portion exhaust gas discharged from the internal combustion engine and provides a first turbine exhaust gas. The second turbine is in fluid communication with the first turbine via an inter-stage channel. The inter-stage channel transports the first turbine exhaust gas from the first turbine to the second turbine. The inter-stage channel is in thermal connection with an exhaust gas recirculation channel defined between an inlet and an outlet of the internal combustion engine. The first turbine exhaust gas flowing through the inter-stage channel is capable of being heated by a second portion exhaust gas discharged from the internal combustion engine and flowing through the exhaust gas recirculation channel.
    Type: Grant
    Filed: July 16, 2012
    Date of Patent: January 6, 2015
    Assignee: General Electric Company
    Inventors: Rodrigo Rodriguez Erdmenger, Cathal Clancy, Daniel Edward Loringer, Jassin Marcel Fritz, Neil Xavier Blythe, Lukas William Johnson, Sebastian Walter Freund, Pierre Sébastien Huck, Jonathan Edward Nagurney, Yu Du, Matthias Lang, Rudolf Konrad Selmeier, Elisa Jubany Arribas
  • Patent number: 8925316
    Abstract: A method of controlling airflow of an engine system is provided. The method includes determining a supercharger operating mode and a turbocharger operating mode based on engine load; selectively generating a control signal to a turbocharger based on the turbocharger operating mode; and selectively generating a control signal to a supercharger bypass valve based on the supercharger operating mode.
    Type: Grant
    Filed: January 9, 2012
    Date of Patent: January 6, 2015
    Assignee: GM Global Technology Operations LLC
    Inventors: Steven J. Andrasko, Christopher J. Kalebjian, Yun Xiao, Bryan A. Kuieck
  • Patent number: 8919121
    Abstract: The present disclosure refers to a turbocharged internal combustion engine with exhaust gas recycling, comprising an intake manifold, an exhaust manifold, a fresh air turbocharger and an exhaust supercharger, wherein the intake manifold is divided by a separating wall into a fresh air passage and an exhaust passage, one of the passages being connected to inlet openings of cylinders of the engine, the fresh air passage being connected to the outlet of the compressor of the fresh air turbocharger, the exhaust passage being connected to the outlet of the compressor of the exhaust supercharger and the separating wall being formed with orifices connecting the two passages.
    Type: Grant
    Filed: February 15, 2010
    Date of Patent: December 30, 2014
    Assignee: Caterpillar Motoren GmbH & Co. KG
    Inventor: Udo Schlemmer-Kelling
  • Publication number: 20140373533
    Abstract: An energy recovery and cooling system for a hybrid machine is disclosed. The energy recovery and cooling system can include at least one circuit including at least one pump, at least one condenser, and at least one turbine, as well as a first flow path and a second flow path. The first flow path can be connected in fluid communication with the at least one pump, the at least one condenser, and the at least one turbine. The first flow path can additionally be in thermal communication with at least one internal combustion energy system component of the hybrid machine. The second flow path can be connected in fluid communication with the at least one pump, the at least one condenser, and the at least one turbine. The second flow path can additionally be in thermal communication with at least one electrical energy system component of the hybrid machine.
    Type: Application
    Filed: June 21, 2013
    Publication date: December 25, 2014
    Inventors: Jeffrey E. Jensen, William R. Tinker
  • Patent number: 8904788
    Abstract: An arrangement for injecting a reducing agent into an exhaust line of a combustion engine (1). An exhaust line (3) leads exhaust gases from the engine. A first turbine (4) is in the exhaust line (3). A second turbine (20) in the exhaust line is downstream of the first turbine (4) in the intended direction of flow in the exhaust line. An injector (19) injects reducing agent into the exhaust line (3) so that it is warmed and vaporized by the warm exhaust gases in the exhaust line (3), and an SCR catalyst (29). The injector (19) is in the exhaust line downstream of the first turbine (4) and upstream of the second turbine (20).
    Type: Grant
    Filed: July 11, 2011
    Date of Patent: December 9, 2014
    Assignee: Scania CV AB
    Inventor: Håkan Sarby
  • Publication number: 20140352300
    Abstract: An engine assembly includes an intake assembly, a spark-ignited internal combustion engine, and an exhaust assembly, and a turbocharger. The internal combustion engine is coupled with the intake assembly and defines a plurality of cylinders that are configured to combust a fuel. A subset of the cylinders are configured to selectively deactivate to stop combusting fuel while others continue combustion. The turbocharger includes a dual-inlet compressor in fluid communication with the intake assembly and a dual-scroll turbine in fluid communication with the exhaust assembly. The dual-inlet compressor and dual-scroll turbine are operatively connected through a shaft.
    Type: Application
    Filed: May 30, 2013
    Publication date: December 4, 2014
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventor: Edward J. Keating
  • Patent number: 8899041
    Abstract: A fresh gas supply device for an internal combustion engine having an exhaust gas turbocharger includes a charge air inlet for letting in compressed charge air from the exhaust gas turbocharger; an outlet connected to the charge air inlet, wherein the connection is closable via at least one backflow flap pivotable about a rotational flap axis; a compressed air inlet for letting compressed air into the outlet; an adjusting unit for adjusting the at least one backflow flap; at least one additional turbocharging unit having an air turbine and a compressor coupled thereto. The air turbine is disposed upstream of the compressed air inlet in the flow direction of the compressed air and compressed air can flow through the air turbine. The compressor is designed to take in and compress additional charge air from the charge air inlet and deliver compressed additional charge air to the outlet.
    Type: Grant
    Filed: December 13, 2012
    Date of Patent: December 2, 2014
    Assignee: KNORR-BREMSE Systeme fuer Nutzfahrzeuge GmbH
    Inventor: Johann Baumgartner
  • Patent number: 8893494
    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 3, 2013
    Date of Patent: November 25, 2014
    Assignee: Renault Trucks
    Inventors: Nicolas Auffret, Nicolas Dronniou
  • Patent number: 8863514
    Abstract: The present invention relates to a multi-stage turbocharger arrangement (1), having a high-pressure turbocharger (20) which has a turbine housing (26A), a bearing housing (27A), a compressor housing (28A); and having a low-pressure turbocharger (21) which has a turbine housing (26B), a bearing housing (27B), a compressor housing (28B); wherein the turbine housings (26A, 26B) are combined to form at least one turbine housing unit (26), and/or wherein the bearing housings (27A, 27B) are combined to form at least one bearing housing unit (27), and/or wherein the compressor housings (28A, 28B) are combined to form at least one compressor housing unit (28).
    Type: Grant
    Filed: June 24, 2010
    Date of Patent: October 21, 2014
    Assignee: BorgWarner Inc.
    Inventors: Volker Joergl, Timm Kiener, Wolfgang Wenzel, Thomas Kritzinger
  • Patent number: 8850813
    Abstract: A turbocharger including a turbine wheel having a hub-to-tip ratio of no more than 60% and blades with a high turning angle, a turbine housing forming an inwardly spiraling primary-scroll passageway that significantly converges to produce highly accelerated airflow into the turbine at high circumferential angles, and a two-sided parallel compressor. The compressor and turbine each produce substantially no axial force, allowing the use of minimal axial thrust bearings. The bearing housing forms a shroud for the internal side of the compressor wheel.
    Type: Grant
    Filed: April 24, 2013
    Date of Patent: October 7, 2014
    Assignee: Honeywell International Inc.
    Inventor: Jeffrey Allen Lotterman
  • Patent number: 8844285
    Abstract: A two-stage supercharging exhaust turbocharger includes: a high-pressure-stage supercharger having a high-pressure turbine driven by exhaust gas discharged from an exhaust manifold of an engine; a low-pressure-stage supercharger having a low-pressure turbine driven by the exhaust gas used to drive the high-pressure-stage supercharger, the high-pressure-stage supercharger and the low-pressure-stage supercharger being arranged in series in an exhaust gas passageway; and an exhaust gas control valve configured to selectively change flow rates of the exhaust gas passageways of the high-pressure-stage supercharger and the low-pressure-stage supercharger, wherein an exhaust manifold incorporating casing is configured by integrally forming the exhaust manifold, a high-pressure turbine housing of the high-pressure-stage supercharger, and a valve casing accommodating the exhaust gas control valve.
    Type: Grant
    Filed: October 3, 2008
    Date of Patent: September 30, 2014
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventor: Byeongil An
  • Patent number: 8820709
    Abstract: A turbine housing includes a wastegate chamber with a wastegate opening; and a wastegate disposed in the wastegate chamber where the wastegate includes a plug configured to plug the wastegate opening and where the plug includes a surface; a shaft configured for receipt by a bore in a wall of the wastegate chamber; and a rotatable arm extending from the shaft where the arm has a surface configured for contacting the surface of the plug for a closed orientation of the plug with respect to the wastegate opening to transmit force from the arm more centrally to the plug. Various other examples of devices, assemblies, systems, methods, etc., are also disclosed.
    Type: Grant
    Filed: March 14, 2011
    Date of Patent: September 2, 2014
    Assignee: Honeywell International Inc.
    Inventors: Alain Lombard, Nicolas Serres
  • Patent number: 8813493
    Abstract: A supercharger control device for an internal combustion engine is preferably applied to a system having a first supercharger and a second supercharger. A switching supercharging pressure setting unit sets a switching supercharging pressure used in case of switching a mode for operating the first supercharger and the second supercharger, based on a difference between a target supercharging pressure and an actual supercharging pressure. When the actual supercharging pressure reaches the switching supercharging pressure, a switching control unit performs a control of switching the mode. Therefore, it becomes possible to appropriately prevent the overshoot of the supercharging pressure at the time of switching the mode.
    Type: Grant
    Filed: December 11, 2008
    Date of Patent: August 26, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Kazuki Iwatani, Taro Aoyama, Yoshio Yamashita, Hiroshi Oyagi
  • Patent number: 8813494
    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: Grant
    Filed: September 7, 2011
    Date of Patent: August 26, 2014
    Assignee: General Electric Company
    Inventors: Douglas C. Hofer, Anthony Furman, Thomas Lavertu
  • Patent number: 8806869
    Abstract: The disclosure relates to a method for controlling a turbocharger system of an internal combustion engine. The method comprises controlling a first bypass valve of a high pressure exhaust gas turbine and a second bypass valve of a low pressure gas turbine on the basis of a turbine model, the first and second bypass valves continuously variable. In this way, turbocharger system efficiency may be maximized.
    Type: Grant
    Filed: September 2, 2011
    Date of Patent: August 19, 2014
    Assignee: Ford Global Technologies, LLC
    Inventor: Simon Petrovic
  • Publication number: 20140223904
    Abstract: A method of boosting air to an intake manifold (20) of an engine (16) having cylinders (C) that emit exhaust gas includes the steps of dividing the exhaust gas emitted from the cylinders into a first exhaust passageway (26A) and a second exhaust passageway (26B), and fluidly communicating at least a portion of the exhaust gas (EG1) from the first exhaust passageway to a divided turbocharger (28). The method also includes the steps of fluidly communicating at least a portion of the exhaust gas (EG1) from the second exhaust passageway (26B) to the divided turbocharger (28), and fluidly communicating the exhaust gas from the divided turbocharger to an undivided turbocharger (42). Further steps in boosting the air include compressing air (CA) at a compressor (48) of the undivided turbocharger (42), and fluidly communicating the compressed air to the intake manifold (20).
    Type: Application
    Filed: August 26, 2011
    Publication date: August 14, 2014
    Applicant: International Engine Intellectual Property Company, LLC
    Inventors: Terry G. Wood, Timothy M. Lyons
  • Patent number: 8793997
    Abstract: In an internal combustion engine and a method of operation the internal combustion engine which includes a high pressure and a low pressure turbocharger having exhaust gas turbines arranged in series in an engine exhaust line provided with a high pressure exhaust gas recirculation line and a low pressure exhaust gas recirculation line via which exhaust gas can be conducted to an inlet line of the engine, the arrangement is switchable depending on the engine speed between an exhaust gas recirculation by way of the high pressure line and an exhaust gas recirculation by way of both, the high pressure and the low pressure line, to achieve low emissions and low fuel consumption.
    Type: Grant
    Filed: February 7, 2012
    Date of Patent: August 5, 2014
    Assignee: Daimler, AG
    Inventors: Heiko Beil, Florian Wegenast
  • Patent number: 8793995
    Abstract: A system and method for recovering the unused energy of exhaust gas of an internal combustion engine is provided. A charge device for generating compressed intake air for the internal combustion engine is driven by exhaust gas, and an air compressor having at least one compression stage is connected to the charge device to withdraw at least a partial quantity of the compressed intake air, the partial quantity of the compressed intake air of the charge device that can be withdrawn by the air compressor is adjustable.
    Type: Grant
    Filed: January 12, 2010
    Date of Patent: August 5, 2014
    Assignee: KNORR-BREMSE Systeme fuer Nutzfahrzeuge GmbH
    Inventor: Eduard Gerum
  • Patent number: 8794000
    Abstract: A natural gas compression system is provided. The system may include a natural gas compressor configured to compress, and thereby pump, natural gas through a pipeline. The system may also include a natural gas burning engine, operatively coupled to the gas compressor, the engine being supplied with air by an induction system. The induction system may include a supercharger driven by the engine and configured to compress intake air and a turbocharger downstream from the supercharger and driven by exhaust gases produced by the engine. The induction system may also include a supercharger compressor bypass configured to selectively recirculate a portion of the compressed output of the supercharger upstream of the supercharger.
    Type: Grant
    Filed: November 24, 2008
    Date of Patent: August 5, 2014
    Assignee: Caterpillar Inc.
    Inventors: Darryl Dean Baldwin, Gary Nelson Boyer, William Christopher Boley, Joel D. Hiltner
  • Patent number: 8789370
    Abstract: A device for utilizing the waste heat of an internal combustion includes a single-stage or multi-stage supercharging device, which is designed as an exhaust-gas turbocharger in particular. The single-stage or multi-stage supercharging device is assigned an additional supercharging device including an expansion machine acted upon by an auxiliary circuit, in particular a steam circuit.
    Type: Grant
    Filed: June 22, 2010
    Date of Patent: July 29, 2014
    Assignee: Robert Bosch GmbH
    Inventors: Juergen Stegmaier, Martin Cichon, Manfred Schmitt, Bernd Banzhaf, Achim Schmidt
  • Patent number: 8789367
    Abstract: A system for recovering, engine exhaust energy is provided. The system includes an exhaust system including a first exhaust branch and a second exhaust branch. The system includes a first and a second group of exhaust valves associated with a plurality of engine cylinders. The system also includes an energy recovering assembly. The system further includes a control mechanism configured to control at least one of the first and second groups of exhaust valves according to a determined timing strategy based on at least one engine operating parameter.
    Type: Grant
    Filed: January 9, 2012
    Date of Patent: July 29, 2014
    Assignee: Caterpillar Inc.
    Inventor: Wade J. Robel
  • Publication number: 20140190164
    Abstract: A duct for connection between an exhaust manifold and a high-pressure turbine inlet include a cylindrical duct body defining a longitudinal axis. A frustoconical outlet nozzle connected at one end of the duct body and extending at about eighty-five degrees from the longitudinal axis. The duct further includes an inlet bell connected at the other end of the duct body and extending at about fifty degrees from the longitudinal axis.
    Type: Application
    Filed: June 24, 2013
    Publication date: July 10, 2014
    Inventors: CHARLES B. ATZ, JOHN DOWELL, VIJAYASELVAN JAYAKAR, PRATAP SUBHASH SHITOLE, CAIN PIOTROWSKI, TRENT A. LARSON, EDWARD PHANEUF, ABHIJEET WARALE, SHIRISH BHIDE
  • Publication number: 20140182286
    Abstract: A turbocharger system for a vehicle may include a turbocharger, a tank for compressed gas and an exhaust manifold conduit in fluid communication with an inlet of the turbocharger. The tank is in fluid communication with the manifold conduit and is arranged to push compressed gas into the manifold conduit during a predetermined pulse duration time period for initial compressor spin up in the turbocharger.
    Type: Application
    Filed: December 23, 2013
    Publication date: July 3, 2014
    Applicant: VOLVO CAR CORPORATION
    Inventors: Goran ALMKVIST, Jonas J. BJORKHOLTZ
  • Publication number: 20140182290
    Abstract: An exhaust casing for use with a turbocharger includes a hollow body that has two mutually opposed large walls, which extend along first and second major dimensions of the hollow body and are spaced apart by a minor dimension of the hollow body, the hollow body defining a plenum and an inlet nozzle opening into the plenum along the minor dimension of the hollow body. The casing further includes an outlet nozzle opening from the plenum along one of the major dimensions of the hollow body.
    Type: Application
    Filed: December 26, 2013
    Publication date: July 3, 2014
    Applicant: General Electric Company
    Inventors: Shirish Bhide, Trent A. Larson, Abhijeet Warale, Gary Szuch, Pratap Subhash Shitole, Jayesh Jain, Vijayaselvan Jayakar, Charles B. Atz, John Dowell, Aravind Kalavara, Amit Kawatkar
  • Publication number: 20140182289
    Abstract: A turbocharger system includes: an engine including a first cylinder head constituting a first bank and a second cylinder head constituting a second bank; a center turbocharger formed between the first bank and the second bank, and connected to exhaust and intake manifolds of the first and second banks; a first turbocharger connected to the other exhaust and intake manifolds of the first bank; and a second turbocharger connected to the other exhaust and intake manifolds of the second bank.
    Type: Application
    Filed: December 2, 2013
    Publication date: July 3, 2014
    Applicant: Hyundai Motor Company
    Inventors: Jonghyuck KIM, Dae Sung PARK
  • Patent number: 8763395
    Abstract: A four-cylinder engine has a valve overlap period during which an exhaust valve and an intake valve of each cylinder are both opened. Cylinder pipes for cylinders having adjacent ignition timings of the engine are connected to a turbo charger, and cylinder pipes for cylinders having adjacent ignition timings are connected to another turbo charger. Accordingly, a properly great supercharging pressure can be obtained in a low engine-speed area.
    Type: Grant
    Filed: February 23, 2010
    Date of Patent: July 1, 2014
    Assignee: Mazda Motor Corporation
    Inventors: Yoshihisa Nou, Naoyuki Yamagata
  • Patent number: 8763396
    Abstract: In a vehicle, which is provided with: a primary turbo and a secondary turbo, each of which is of an exhaust driven type; an exhaust changeover valve and an intake changeover valve, which are placed in a secondary exhaust passage and a secondary intake passage corresponding to the secondary turbo, respectively; and an intake bypass valve placed in an intake bypass passage, an ECU sets the opening/closing state of each changeover valve to an opening/closing state corresponding to a twin turbo mode at the time of engine stop, and it uses the drive control of each changeover valve which is necessitated in the transition to a single turbo mode at the engine start, thereby performing the sticking detection of the changeover valve at the same time.
    Type: Grant
    Filed: January 26, 2009
    Date of Patent: July 1, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Hiroshi Oyagi, Yoshio Yamashita, Kazuki Iwatani, Taro Aoyama
  • Publication number: 20140165561
    Abstract: A damper system for placement between a supercharger and a turbocharger. The damper is located in a plenum placed within the air path from the supercharger to the turbocharger. If the plenum is under positive pressure from the supercharger, the damper seals shut against the plenum, allowing the supercharger to build positive boost pressure to the turbocharger. The damper is designed to stay closed until the plenum experiences a slightly negative pressure. The damper then opens to expose the turbocharger inlet to atmospheric pressure. This allows the turbocharger to intake the airflow from the smaller supercharger, but also to intake additional airflow from the ambient air at atmospheric pressure. The damper allows an engine to take advantage of the low RPM and low load performance and efficiency of smaller superchargers and the performance and efficiency of larger turbochargers under higher load and higher exhaust mass flow rate.
    Type: Application
    Filed: August 29, 2013
    Publication date: June 19, 2014
    Inventor: Klint M. KINGSBURY
  • Publication number: 20140165557
    Abstract: One embodiment is a method including determining whether an ammonia storage device has a stored quantity of ammonia, predicting an impending ammonia release from the ammonia storage device, determining a NOx increase amount in response to the impending ammonia release, and increasing an amount of NOx provided by an engine based on the NOx increase amount. In certain embodiments, determining the NOx increase amount in response to the impending ammonia release comprises determining a NOx increase schedule based on the stored quantity of ammonia. In certain embodiments, the NOx increase schedule comprises a specified NOx increase time period, and in certain further embodiments, the method further includes decrementing the specified NOx increase time period based on an estimated catalyst degradation value.
    Type: Application
    Filed: February 19, 2014
    Publication date: June 19, 2014
    Applicant: Cummins Inc.
    Inventors: Hasan Mohammed, Joseph M. Brault
  • Patent number: 8752377
    Abstract: A device for cooling charge air, specifically for cooling charge air which is compressed in a compressor of at least one exhaust-gas turbocharger and which is to be supplied to an internal combustion engine, wherein at least two charge-air coolers are arranged in a common housing, specifically in such a way that charge air to be cooled can be supplied separately to the charge-air coolers arranged in the common housing via in each case one separate incoming-air chamber provided by the common housing, and that cooled charge air can be discharged jointly from the charge-air coolers arranged in the common housing via a common outgoing-air chamber provided by the common housing.
    Type: Grant
    Filed: July 13, 2011
    Date of Patent: June 17, 2014
    Assignee: Dr. Ing. h.c. F. Porsche Aktiengesellschaft
    Inventors: Thomas Laube, Michael Wessels
  • Publication number: 20140150423
    Abstract: A two-stage turbocharger assembly for an internal combustion engine is provided. The assembly has a single low pressure turbocharger, and more than two high pressure turbochargers arranged in parallel with each other. The compressor outlet of the single low pressure turbocharger is operatively connected to the compressor inlets of the high pressure turbochargers. The turbine outlets of the high pressure turbochargers are operatively connected to the turbine inlet of the single low pressure turbocharger.
    Type: Application
    Filed: November 26, 2013
    Publication date: June 5, 2014
    Applicant: NAPIER TURBOCHARGERS LIMITED
    Inventor: Francis Joseph Geoffrey HEYES
  • Patent number: 8739530
    Abstract: An engine system is provided. The system comprises an engine, first and second compressors supplying air to the engine, a first compressor recirculation valve adjustable to two restriction levels, and a second compressor recirculation valve adjustable to three or more restriction levels. In this way, the first and second compressor recirculation valves may be controlled to avoid compressor surge while providing a sufficient amount of boost to meet power demands.
    Type: Grant
    Filed: November 10, 2011
    Date of Patent: June 3, 2014
    Assignee: Ford Global Technologies, LLC
    Inventors: Deborah M. Bjorge, Julia Helen Buckland
  • Patent number: 8739529
    Abstract: A compressor system for a vehicle includes a compressor driven by a drive motor of the vehicle and a suction air conduit for supplying air that has already been precompressed by a turbocharger of the drive motor to the compressor. A mechanism is disposed in the suction air guide for reducing the flow cross-section. The mechanism is able to limit the charging pressure of the already precompressed air supplied to the compressor. A method for controlling a compressor system having a turbocharged compressor limits a charging pressure of the already precompressed air to an adjustable maximum value.
    Type: Grant
    Filed: December 28, 2010
    Date of Patent: June 3, 2014
    Assignee: KNORR-BREMSE Systeme fuer Nutzfahrzeuge GmbH
    Inventor: Eduard Gerum