Having Condition Responsive Means To Control Supercharged Flow To Engine Patents (Class 60/611)
  • Patent number: 9709008
    Abstract: A supercharger exhaust bypass system, comprises a supercharger comprising an inlet and outlet, a bypass valve connected to the supercharger outlet, a first intercooler connected to receive compressed air from the outlet of the supercharger and connected to cool and expel air, a second intercooler comprising an envelope inlet, an exhaust inlet, an exhaust outlet, an exhaust passage between the exhaust inlet and the exhaust outlet, and an envelope connected to the envelope inlet and surrounding the exhaust passage, an engine system connected to receive expelled air from the first intercooler and further connected to output exhaust to the exhaust inlet of the second intercooler, and a bypass conduit connected to the bypass valve and connected to the envelope inlet.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: July 18, 2017
    Assignee: Eaton Corporation
    Inventors: Ryan Douglas CieChanski, Grant Stephen Terry
  • Patent number: 9708989
    Abstract: In an air handling system of a uniflow-scavenged, two-stroke cycle opposed-piston engine, one or more engine operating state parameters are sensed, numerical values of air handling parameters based on trapped conditions in a cylinder of the engine at the last port closing of an engine operating cycle are determined in response to the sensed parameters, the numerical values are evaluated, and one or more of the numerical values is adjusted in response to the evaluation. The adjusted numerical values are used to control charge air flow and EGR flow in the air handling system.
    Type: Grant
    Filed: November 20, 2015
    Date of Patent: July 18, 2017
    Assignee: ACHATES POWER, INC.
    Inventors: Randy E. Herold, Nishit Nagar, Fabien G. Redon
  • Patent number: 9689347
    Abstract: An engine for propelling vehicles on land, in the air and on the water. The engine is able to extract energy from a same fuel twice, including extracting a first amount of energy with a gas turbine and a second amount of energy by burning the fuel in a combustion engine.
    Type: Grant
    Filed: December 13, 2013
    Date of Patent: June 27, 2017
    Inventors: Charles A. Evans, Jr., Michael D. Strathman
  • Patent number: 9689305
    Abstract: A method for operating an internal-combustion engine includes increasing a torque demand, controlling a throttle valve, opening an air injection valve and continuously measuring first and second gas pressures with an electronic control unit. The method also includes closing the throttle valve, measuring a first gas mass flow, retarding an ignition angle, and closing the air injection valve. In the method the throttle valve is opened with the control unit when the first gas pressure p1 equals the second gas pressure p2. The method also includes continuously controlling the fuel system with the electronic control unit to have a stoichiometric fuel/air ratio of the internal combustion engine being constantly combusting in the internal combustion engine.
    Type: Grant
    Filed: May 19, 2015
    Date of Patent: June 27, 2017
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Christian Doenitz, Christoph Voser, Norbert Zsiga, Christopher Onder, Lino Guzzella
  • Patent number: 9567924
    Abstract: An internal combustion engine having a controller for controlling the propriety of the target throttle opening degree is confirmed with a reference throttle opening degree as a reference by a monitoring device. The target throttle opening degree is calculated based on a target intake air quantity and a measured value or an estimated value of a supercharging pressure by using an inverse model of an air model expressing a dynamic relation that is established among the supercharging pressure, a throttle opening degree and an intake air quantity, by a first arithmetic unit.
    Type: Grant
    Filed: May 23, 2012
    Date of Patent: February 14, 2017
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Satoru Tanaka
  • Patent number: 9567950
    Abstract: A system and method for controlling a multiple cylinder internal combustion engine having an exhaust gas turbocharger with a compressor coupled to a turbine include redirecting substantially all intake airflow around the compressor and substantially all exhaust flow around the turbine when an engine operating parameter exceeds an associated threshold. In one embodiment, turbocharger boost is provided below an associated engine speed threshold with the turbocharger compressor and turbine bypassed at higher engine speeds such that the engine operates as a naturally aspirated engine.
    Type: Grant
    Filed: March 25, 2010
    Date of Patent: February 14, 2017
    Assignee: Ford Global Technologies, LLC
    Inventor: Stephen George Russ
  • Patent number: 9441559
    Abstract: A method is provided for controlling a pre-spin operation of a compressor of an internal combustion engine provided with a turbocharger. The presence of a turbocharger imposes additional requirements on the method. The wear of a compressor clutch is proportional to the transferred energy when the clutch is engaged. In order to reduce the wear of the compressor clutch, or increase the maximum engine speed where it is allowed to engage the compressor, a compressor pre-spin operation is used to reduce the transferred energy when the clutch is engaged. The pre-spin is achieved by controlling the air mass flow over the compressor by controlling a bypass throttle angle of a bypass throttle. The bypass throttle is provided in a parallel conduit to the compressor, bypassing the compressor. Since the air mass flow over the compressor affects the air mass flow to the turbocharger, the method takes the turbocharger into consideration.
    Type: Grant
    Filed: November 7, 2014
    Date of Patent: September 13, 2016
    Assignee: VOLVO CAR CORPORATION
    Inventors: Johan Svensson, Mattias Carlen
  • Patent number: 9353759
    Abstract: A turbocharger bypass system and method for minimizing the occurrence of oil seepage from the bearing housing into the compressor housing as a result of a pressure differential across the bearing housing and the compressor housing. A bypass system with a pressure dependent check valve is connected to the inlet air passage of a turbocharged engine. When the pressure in the inlet air passage drops to below atmosphere or a predetermined level of depression, the check valve opens to allow a flow of atmospheric air into the inlet air passage, thus minimizing or eliminating the pressure differential generated as a result of a vacuum in the inlet air passage during motoring conditions, or when an exhaust valve downstream of the turbocharger is closed, such as during engine braking. The bypass system is applicable to both single stage and dual stage turbocharged internal combustion engines.
    Type: Grant
    Filed: June 4, 2010
    Date of Patent: May 31, 2016
    Assignee: Inernational Engine Intellectual Property Company, LLC.
    Inventors: Joshua Horner, Paul Gottemoller
  • Patent number: 9316146
    Abstract: A supercharger system includes a supercharger main housing enclosing one or more active components for moving air from an upstream side to a downstream side of the supercharger main housing. The system includes a supercharger inlet housing mounted at the upstream side of the supercharger main housing and a re-circulation line. The re-circulation line provides fluid communication between the downstream side of the supercharger main housing and the supercharger inlet housing. The line includes a flow diverter having first and second portions within the supercharger inlet housing. The first portion defines a first re-circulation flow direction and the second portion defines a second re-circulation flow direction. The second direction may be 45-135 degrees relative to the first recirculation direction.
    Type: Grant
    Filed: January 24, 2014
    Date of Patent: April 19, 2016
    Assignee: Eaton Corporation
    Inventors: Kenneth A. Rienas, Jon P. Trudeau
  • Patent number: 9309836
    Abstract: Methods and systems are provided for varying a proportion of compressed air recirculated to a compressor inlet from a location downstream of the compressor and upstream of a charge air cooler and a location downstream of the charge air cooler. A temperature-controlled compressor recirculation flow is used to reduce condensation from EGR being ingested into the compressor. The temperature-controlled compressor recirculation flow is also used to address compressor surge.
    Type: Grant
    Filed: August 13, 2013
    Date of Patent: April 12, 2016
    Assignee: Ford Global Technologies, LLC
    Inventors: Joseph Norman Ulrey, Julia Helen Buckland, Gregory Patrick McConville
  • Patent number: 9303574
    Abstract: An engine with a supercharger includes a low pressure loop EGR apparatus. An EGR passage having an inlet connected to an exhaust passage downstream of a turbine and an outlet connected to an intake passage upstream of a compressor. An intake bypass passage is provided to bypass the intake passage downstream of the compressor and the intake passage upstream of the compressor, with an ABV in the intake bypass passage. A throttle valve is closed during stop or deceleration operation of the engine. An electronic control unit (ECU) is configured such that, when the ECU determines based on an operation state of the engine that the EGR valve is in a valve-opened state and the engine is in deceleration operation from a supercharging region, the ECU controls an EGR valve to close and the ABV to open from a valve-closed state delayed from start of closing the EGR valve.
    Type: Grant
    Filed: December 10, 2014
    Date of Patent: April 5, 2016
    Assignee: AISAN KOGYO KABUSHIKI KAISHA
    Inventors: Takehide Nakamura, Mamoru Yoshioka
  • Patent number: 9291089
    Abstract: A compressor adapted to compress a working fluid includes a housing surrounding a compressor wheel and a backplate connected to the housing and enclosing the compressor wheel within an interior space of the housing. A cooling fluid conduit is fluidly connected between a cooled and compressed source of working fluid downstream of the compressor and the interior space of the housing of the compressor at a location between the compressor wheel and the back plate. A pressure differential created when the compressor is operating draws a flow of cooled, compressed charge into the interior space of the housing, which flow passes over and convectively cools said compressor wheel before mixing with a main compressor flow and being provided back through the compressor outlet.
    Type: Grant
    Filed: August 29, 2013
    Date of Patent: March 22, 2016
    Assignee: Caterpillar Inc.
    Inventors: Gary Powers, Cody McKinley, Dan Vacek, Muhamad Baihaqi Haji Ismail, Kumar Nale, Jeffrey McCormack
  • Patent number: 9279374
    Abstract: Methods and systems are provided for recirculating compressed air across a compressor through a high flow and a low flow compressor recirculation path. Flow through the recirculation paths is controlled via respective valves and valve opening is adjusted based on a throttle mass flow so as to maintain a compressor flow rate at or above a surge constrained flow rate. By maintaining a sufficiently high compressor flow rate during steady state and transient conditions, the compressor state can be maintained outside a surge region.
    Type: Grant
    Filed: August 13, 2013
    Date of Patent: March 8, 2016
    Assignee: Ford Global Technologies, LLC
    Inventors: Julia Helen Buckland, Robert Andrew Wade, Gregory Patrick McConville, Kevin Payne, Joseph Ulrey
  • Patent number: 9261051
    Abstract: Methods and systems are provided for managing a compressor temperature using EGR to address surge and condensation. A variable mixture of cooled compressor recirculation flow and hot EGR is provided to a compressor inlet. A composition of the mixture is adjusted to maintain a compressor inlet temperature sufficiently warm so as to reduce ingestion of condensation, and a compressor outlet temperature sufficiently cold to be within component temperature limits with flow above the surge limit.
    Type: Grant
    Filed: August 13, 2013
    Date of Patent: February 16, 2016
    Assignee: Ford Global Technologies, LLC
    Inventors: Joseph Norman Ulrey, Julia Helen Buckland
  • Patent number: 9234469
    Abstract: A method for providing air to a combustion chamber of an engine, the engine including an intake manifold selectably coupled to a boost tank. The method comprises pressurizing and storing air in the boost tank, discharging some of the air stored in the boost tank to the intake manifold, and releasing condensate from the boost tank.
    Type: Grant
    Filed: February 18, 2014
    Date of Patent: January 12, 2016
    Assignee: Ford Global Technologies, LLC
    Inventor: Ross Dykstra Pursifull
  • Patent number: 9174637
    Abstract: Methods and systems are provided for improving surge control. When surge conditions are approached, a reference governor reduces engine airflow at a slower rate and to a higher level than the engine airflow required to meet the reduced torque demand. The excess torque resulting from the extra airflow is offset by applying a negative torque on the driveshaft via an electric machine coupled to the engine or via alternate engine actuator adjustments.
    Type: Grant
    Filed: August 13, 2013
    Date of Patent: November 3, 2015
    Assignee: Ford Global Technologies, LLC
    Inventors: Adam Nathan Banker, Julia Helen Buckland, Joseph Norman Ulrey, Uros Vojko Kalabic, Matthew John Gerhart, Tobias John Pallett, Ilya Kolmanovsky, Suzanne Kay Wait
  • Patent number: 9175617
    Abstract: A system and method can control exhaust braking in a vehicle. The vehicle includes an engine system. The engine system includes internal combustion engine, an intake manifold, a control module, an exhaust system, and a variable geometry turbocharger (VGT) having a turbine. The turbine includes turbine blades and vanes movable with respect to the turbine blades. The method includes the following: (a) receiving an exhaust brake torque request; (b) determining target pumping losses in the internal combustion engine based on the exhaust brake torque request; (c) determining a target exhaust gas pressure within the exhaust system based on the target pumping losses; and (d) determining a target vane position of the vanes based on the target exhaust gas pressure, wherein the target vane position yields an exhaust brake torque in accordance with the exhaust brake torque request.
    Type: Grant
    Filed: August 8, 2013
    Date of Patent: November 3, 2015
    Assignee: GM Global Technology Operations LLC
    Inventors: Luca Scavone, Simone Barbero, Francesco Castorina, Francesco Cianflone, Andrea Di Giovanni, Andrea De Vito
  • Patent number: 9157409
    Abstract: In a control device 50A, an actual compression ratio calculation unit 502 calculates an actual compression ratio ? from an air supply pressure Ps, a cylinder pressure before ignition Pc and an air supply temperature Ts. A deposit deposition estimation unit 504 determines the deposit deposition state of a combustion chamber 18 from a deviation ?? between the actual compression ratio ? and a design compression ratio ??. When the deviation ?? exceeds a threshold value, ignition timing or air-fuel ratio being operation conditions of an internal combustion engine is corrected based on a correction map 508 so as to suppress deterioration of exhaust gas.
    Type: Grant
    Filed: January 17, 2013
    Date of Patent: October 13, 2015
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD
    Inventor: Junnosuke Andou
  • Patent number: 9151219
    Abstract: Methods and systems are provided for improving a margin to surge. A compressor recirculation valve is held at a semi-open position during steady-state boosted engine operation and operation in a soft surge region. The valve is fully opened to reduce hard surge, or fully closed to meet a transient increase in boost demand.
    Type: Grant
    Filed: August 13, 2013
    Date of Patent: October 6, 2015
    Assignee: Ford Global Technologies, LLC
    Inventors: Gregory Patrick McConville, Julia Helen Buckland
  • Patent number: 9091202
    Abstract: Methods and systems are provided for varying a proportion of compressed air recirculated to a compressor inlet from a location downstream of the compressor and upstream of a charge air cooler and a location downstream of the charge air cooler. A temperature-controlled compressor recirculation flow is used to reduce condensation from EGR being ingested into the compressor. The temperature-controlled compressor recirculation flow is also used to address compressor surge.
    Type: Grant
    Filed: August 13, 2013
    Date of Patent: July 28, 2015
    Assignee: Ford Global Technologies, LLC
    Inventors: Daniel Joseph Styles, Julia Helen Buckland, Joseph Norman Ulrey, James Leiby, Gregory Patrick McConville
  • Patent number: 9068535
    Abstract: A variable flow valve with position feedback is disclosed. The variable flow valve includes a housing having an inlet port and a discharge port and one or more control ports, and also includes a piston connected to a primary valve to open and close fluid communication between an inlet port and a discharge port of the housing. The housing and the piston intermesh to define an inner chamber and an outer chamber each in fluid communication with its own control port. A control port valve opens and closes at least one of the control ports to control access to a source of pressure change. A position sensor is part of the position feedback and communicates the position of the primary valve, relative to the discharge port, to a controller that operates the control port valve to hold the primary valve in a position where the discharge port is partially open.
    Type: Grant
    Filed: June 19, 2013
    Date of Patent: June 30, 2015
    Assignee: Dayco IP Holdings, LLC
    Inventors: Brian Graichen, Dave Fletcher, Craig Markyvech
  • Patent number: 9037384
    Abstract: A method for operating an internal combustion engine, having an exhaust gas turbocharger, during a load change of the internal combustion engine, includes initiation of a closing process of a throttle valve of the internal combustion engine, disposed in an induction tract or intake section of the internal combustion engine, as a function of an air pressure which is present upstream of the throttle valve, in such a way that the air pressure always falls short of a surge limit or pumping limit of a compressor, disposed in the induction tract, of the exhaust gas turbocharger. A staged or stepped reduction in a torque of the internal combustion engine is performed by shutting off fuel injections at predetermined cylinders of the internal combustion engine. An internal combustion engine with an exhaust gas turbocharger is also provided.
    Type: Grant
    Filed: April 28, 2011
    Date of Patent: May 19, 2015
    Assignee: Continental Automotive GmbH
    Inventor: Achim Koch
  • Publication number: 20150128588
    Abstract: A method for the load-dependent opening and closing of a blow-off valve flap of an internal combustion engine with a turbocharger is provided, in which by at least one detector on an internal combustion engine inlet side, at least one air pressure value, one air mass flow value and/or an opening position of a valve of the suction pipe are detected and transmitted to a control device. By the control device from the received values a current load of the internal combustion engine is determined, and by the control device based on the determined current load of the internal combustion engine and/or of the turbocharger, control inputs for an actuator of the blow-off valve flap are generated and transmitted to the actuator. The blow-off valve flap is completely opened, partially opened, minimally opened or closed and held in the respective position by the actuator dependent on the current load.
    Type: Application
    Filed: November 14, 2014
    Publication date: May 14, 2015
    Inventors: Gerhard Landsmann, Baris Camurtay, Joerg Bernards
  • Publication number: 20150121865
    Abstract: A method for operating a turbocharged engine is disclosed. In one example, during a first condition an engine operation is adjusted in response to a turbocharger expansion ratio exceeding a first limit and during a second condition an engine operation is adjusted in response to the turbocharger expansion ratio exceeding a second limit that differs from the first limit. Degradation of the engine may be reduced under some engine operating conditions by adjusting engine operation in response to the turbocharger expansion ratio.
    Type: Application
    Filed: January 13, 2015
    Publication date: May 7, 2015
    Inventors: Brien Lloyd Fulton, Gopal Krishna Chamarthi, Dean Pennala, David Ives, David Robert Nader, Paul Martin Niessen, Jason Ronald Smith
  • Patent number: 9010115
    Abstract: A vacuum source including an ejector is disclosed. In one example, vacuum is supplied via the ejector when a turbocharger has excess boost capacity. The approach can prioritize how excess boost may be used to provide vacuum.
    Type: Grant
    Filed: March 17, 2011
    Date of Patent: April 21, 2015
    Assignee: Ford Global Technologies, LLC
    Inventors: Ross Dykstra Pursifull, Joseph Norman Ulrey
  • 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: 9010116
    Abstract: A vacuum source arbitration system is disclosed. In one example, vacuum is supplied to a vacuum reservoir via an ejector during a first condition, and vacuum is supplied to the vacuum reservoir via an engine intake manifold during a second condition. The approach may provide a desired level of vacuum in a reservoir while reducing engine fuel consumption.
    Type: Grant
    Filed: January 20, 2014
    Date of Patent: April 21, 2015
    Assignee: Ford Global Technologies, LLC
    Inventors: Ralph Wayne Cunningham, Moses Alexander Fridman, Todd Anthony Rumpsa, Mansour Beshay, Clifford E. Maki, Ross Dykstra Pursifull
  • Publication number: 20150096296
    Abstract: Methods are provided for identifying degradation in components of a compressor recirculation valve (CRV). One method may include inferring degradation of the CRV based on adaptation of a compressor surge line outside an expected range.
    Type: Application
    Filed: December 8, 2014
    Publication date: April 9, 2015
    Inventors: Adam Nathan Banker, Baitao Xiao, Hamid-Reza Ossareh
  • Patent number: 8997484
    Abstract: Methods and systems are provided for reducing turbo lag in a boosted engine. A boost reservoir coupled to the engine may be charged with compressed intake air and/or combusted exhaust gas. The pressurized charge may then be discharged during a tip-in to either the intake or the exhaust manifold.
    Type: Grant
    Filed: May 17, 2012
    Date of Patent: April 7, 2015
    Assignee: Ford Global Technologies, LLC
    Inventors: John Eric Rollinger, Adam J. Richards, Alex O'Connor Gibson, David Bell, Julia Helen Buckland
  • Patent number: 8997488
    Abstract: The present invention relates to a turbocharged reciprocating piston engine, and to a method for operating said engine. The combustion chamber includes at least one inlet valve (10), one outlet valve (13) and at least one additional charging valve (11), for the additional feed of compressed air to bridge the turbo lag, that are each operatively connected to the crankshaft via a camshaft and the operative connection of the charging valves to the crankshaft can be deactivated, with the result that the at least one charging valve (11) remains closed. An approximately stoichiometric combustion mixture is achieved by a turbocharger (4) and a throttle valve (8). By displacement of the opening instant of the charging valves (11), air can be pumped from the cylindrical combustion chambers into the compressed air tank (14). An additional compressor (24) can likewise deliver air into the compressed air tank (14).
    Type: Grant
    Filed: August 3, 2010
    Date of Patent: April 7, 2015
    Assignee: ETH Zürich
    Inventors: Lino Guzzella, Christian Dönitz, Christopher H. Onder, Christoph Voser
  • Patent number: 8978378
    Abstract: An approach for controlling a turbocharger bypass valve is disclosed. In one example, the turbocharger bypass valve is opened during engine cold start conditions to reduce turbocharger speed. The approach may reduce noise produced by the turbocharger during engine start and warm-up.
    Type: Grant
    Filed: October 20, 2011
    Date of Patent: March 17, 2015
    Assignee: Ford Global Technologies, LLC
    Inventors: Robert Andrew Wade, Fadi Maroun Naddaf, Joseph P. Whitehead, Jason Eugene Devries
  • 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
  • Publication number: 20150063967
    Abstract: A shovel includes a boom cylinder that drives a boom and an arm cylinder that drives an arm. A hydraulic pump supplies operating oil to the boom cylinder and the arm cylinder. An engine is connected to the hydraulic pump and equipped with a supercharger. The engine is controlled to maintain a revolution speed within a certain definite range. A controller controls a rotating speed of the supercharger. The controller performs a process of increasing the rotating speed of the supercharger so as to increase a supercharging pressure generated by the supercharger before a hydraulic load is applied to the engine.
    Type: Application
    Filed: August 28, 2014
    Publication date: March 5, 2015
    Inventor: Kenji MORITA
  • 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
  • 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: 20150047350
    Abstract: A method and system for operating an engine that is supplied a fuel having a low super critical temperature is presented. In one example, the method supplies excess fuel to a direct injection fuel rail to cool a portion of the fuel system that is near direct fuel injectors. The heat is drawn from the direct injection fuel rail to a fuel tank where the heat is removed via injecting fuel vapors to the engine.
    Type: Application
    Filed: August 19, 2013
    Publication date: February 19, 2015
    Applicant: Ford Global Technologies, LLC
    Inventor: Ross Dykstra Pursifull
  • Publication number: 20150047345
    Abstract: A method and system of cleaning a turbocharger bypass control valve, the control valve being operable to vary the position of a bypass valve and thereby vary the amount of flow bypass across a turbine and/or compressor of a turbocharger for an engine. The method comprises: determining whether the control valve may require cleaning; adjusting the duty cycle of the shuttle so as to increase a flow of fluid through the control valve and clean the control valve; and adjusting a throttle position of the engine and thus the engine torque output to compensate for the adjustment in the amount of boost provided by the turbocharger.
    Type: Application
    Filed: July 1, 2014
    Publication date: February 19, 2015
    Inventors: Brian David Eves, Shane Keilthy, Mike Acton, Tom Leroy
  • Patent number: 8950183
    Abstract: An engine system includes a plurality of turbochargers each including a compressor outlet fluidly connected to an intake manifold of an engine. A plurality of intake conduits are configured to each convey incoming combustion air to one of the turbochargers, and each includes a casing, and a duct within the casing having a surge inhibitor mounted thereon which includes a flow-directing surface oriented obliquely to an axis of the duct to direct combustion air leaked back out of the compressor inlet away from a discharging stream of combustion air exiting the duct. Related methodology is also disclosed.
    Type: Grant
    Filed: September 10, 2012
    Date of Patent: February 10, 2015
    Assignee: Caterpillar Inc.
    Inventors: Jed W. Nixon, Keith G. Rochford
  • Publication number: 20150033732
    Abstract: A supercharging device of a bifuel engine using a gas fuel and a liquid fuel as fuels, and having a supercharger supercharging or turbocharger turbocharging a large amount of intake air into a combustion chamber of the engine by driving a compressor arranged in an intake passage of the engine by an output shaft of the engine or an electric motor, performs the compressing by the compressor of the supercharger or turbocharger when the gas fuel is used, and does not perform the supercharging or turbocharging by the compressor of the supercharger or turbocharger when the liquid fuel is used.
    Type: Application
    Filed: August 1, 2013
    Publication date: February 5, 2015
    Inventor: Hiroyuki HASEGAWA
  • Patent number: 8938961
    Abstract: A disclosed method of operating an engine may include discharging exhaust gas from at least one combustion chamber of the engine. The method may also include recirculating at least a portion of the exhaust gas to the at least one combustion chamber through an EGR system, including directing at least a portion of the exhaust gas through an EGR duct. Additionally, the method may include sensing pressure in a portion of the EGR duct by directing the pressure to a first pressure sensor via a first sensor passage having a first end connected to a portion of the EGR duct and a second end connected to the first pressure sensor, while maintaining a temperature of gas in the first sensor passage adjacent the second end at a bulk temperature of at least about 75 percent of a bulk temperature of gas in the first sensor passage at the first end.
    Type: Grant
    Filed: December 30, 2011
    Date of Patent: January 27, 2015
    Assignee: Caterpillar Inc.
    Inventors: Matthew Edward Leustek, Justin Werner McMenamy, Jeffrey S. Morris, Matthew John Liening, Joseph John Stabnik, William Lyle Schell
  • 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: 8931272
    Abstract: A method for operating a turbocharged engine is disclosed. In one example, during a first condition an engine operation is adjusted in response to a turbocharger expansion ratio exceeding a first limit and during a second condition an engine operation is adjusted in response to the turbocharger expansion ratio exceeding a second limit that differs from the first limit. Degradation of the engine may be reduced under some engine operating conditions by adjusting engine operation in response to the turbocharger expansion ratio.
    Type: Grant
    Filed: April 11, 2013
    Date of Patent: January 13, 2015
    Assignee: Ford Global Technologies, LLC
    Inventors: Brien Lloyd Fulton, Gopal Krishna Chamarthi, Dean Pennala, David Ives, David Robert Nader, Paul Martin Niessen, Jason Ronald Smith
  • 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: 8931273
    Abstract: Methods and systems are provided for raising an exhaust temperature to spin a turbocharger turbine and reduce turbo-lag. Pressurized air is discharged from a boost reservoir into an intake manifold while spark retard is increased to expedite exhaust heating while also increasing a net combustion torque. By expediting turbine spin-up in response to a tip-in, turbo-lag is reduced and engine performance is improved.
    Type: Grant
    Filed: May 17, 2012
    Date of Patent: January 13, 2015
    Assignee: Ford Global Technologies, LLC
    Inventors: John Eric Rollinger, Alex O'Connor Gibson, Julia Helen Buckland, Robert Andrew Wade
  • 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: 8925315
    Abstract: A method for reducing turbolag in a turbocharged internal combustion engine includes demanding torque for shifting the internal combustion engine from a stationary engine mode to a transient engine mode, closing an exhaust gas recirculation (EGR) valve during the transient engine mode, repositioning guide vanes of a Variable Geometry Turbine (VGT) turbo unit from a first position when in the stationary engine mode to a second position when in the transient engine mode, increasing a duration of overlapping of at least one inlet valve and at least one outlet valve provided in a cylinder head of the internal combustion engine from as first duration when in the stationary mode to a second duration when in the transient mode for increasing the amount of air flowing from an inlet manifold to an exhaust manifold and thereby increasing acceleration of a turbine of the VGT turbo unit.
    Type: Grant
    Filed: January 22, 2009
    Date of Patent: January 6, 2015
    Assignee: Volvo Lastvagnar AB
    Inventors: Andreas Nordstrand, Lennarth Zander
  • Patent number: 8925528
    Abstract: An engine is provided. The engine includes a piston operable to reciprocate in a cylinder, a crankshaft rotatably coupled to the piston, and a supercharger rotatably coupled to the crankshaft. The supercharger has an unequal distribution of mass along a longitudinal plane of the supercharger to provide a rotational counterbalance to reduce engine imbalance.
    Type: Grant
    Filed: June 26, 2012
    Date of Patent: January 6, 2015
    Assignee: Ford Global Technologies, LLC
    Inventors: Ray Alan Kach, Michael Bruno Magnan, Robert Andrew Wade, Vince Paul Solferino, David E. Masser, Jeffrey Eliot Chottiner
  • Patent number: 8919122
    Abstract: A compressor housing includes a housing body for enclosing an impeller, an inlet portion for introducing air toward the impeller, and a port portion arranged adjacent to the inlet portion. A valve body for opening and closing a bypass passage, which bypasses the impeller, can be rested against the port portion. A connection hole, to which a return passage for returning blow-by gas of an internal combustion engine is connected, is formed in a side wall of the inlet portion. The inlet portion and the port portion have a common wall. A communication hole, which configures a part of the return passage, is formed in the common wall. The communication hole is formed such that the projection plane defined by projecting the communication hole onto a surface of the side wall having the connection hole along the axis of the communication hole is contained in the connection hole.
    Type: Grant
    Filed: August 10, 2011
    Date of Patent: December 30, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Norihiko Sumi
  • 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