With Condition Responsive Valve Means To Control Supercharged Flow And Exhaust Products Patents (Class 60/600)
  • Patent number: 10146192
    Abstract: The invention relates to a method for adjusting at least one control parameter (KP) of an internal combustion engine (200) by means of at least two setting parameters (SP), having the following steps: determining an optimum steady-state combination (110) of the at least two setting parameters (SP) in order to obtain the setpoint value (104) under steady-state boundary conditions, producing a functional dynamic relationship (120) between the control error (100), a setting expenditure (130) for the at least two setting parameters (SP) and the determined steady-state combination (110), optimizing the dynamic relationship (120) in order to determine an optimum dynamic combination (140) of the at least two setting parameters (SP), and using the optimum dynamic combination (140) for the following adjustment step during the adjustment of the at least one control parameter (KP).
    Type: Grant
    Filed: March 24, 2016
    Date of Patent: December 4, 2018
    Assignee: FEV GmbH
    Inventors: Martin Nijs, Norman Liberda, Thivaharan Ablin Rajasingham, Dirk Abel
  • Patent number: 10125727
    Abstract: An EGR channel and an EGR valve are provided for introducing EGR gas into an intake channel upstream of a compressor that supercharges intake air. There is provided an intake bypass channel that connects the intake channel downstream of the compressor and the EGR channel immediately downstream the EGR valve along the direction of the flow of the EGR gas to each other, and a bypass valve capable of selecting a configuration of an intake air flow channel from among a first channel in which the intake air having passed through the compressor passes through the intake channel and flows into a cylinder and a second channel in which in the state where the EGR valve is closed, part of the intake air having passed through the compressor passes through the intake bypass channel and the EGR channel and is recirculated to a part upstream of the compressor.
    Type: Grant
    Filed: March 12, 2015
    Date of Patent: November 13, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Atsushi Hayashi
  • Patent number: 10094272
    Abstract: An assembly for an exhaust bypass valve of a two-stage turbocharger can include a first turbocharger stage; a second turbocharger stage; an exhaust bypass valve that includes an open state and a closed state; and a linkage mechanism that links the exhaust bypass valve to an actuator where the linkage mechanism includes a locked state for the closed state of the exhaust bypass valve.
    Type: Grant
    Filed: June 24, 2016
    Date of Patent: October 9, 2018
    Assignee: Honeywell International Inc.
    Inventors: Chris Groves, Damien Marsal, Stephane Sibille, Andreas Heckner
  • Patent number: 10094309
    Abstract: An engine device executes the control of the opening degree of a main throttle valve when engine load is in a low load area. In contrast, when the engine load is in a medium-to-high load area, the engine device sets the main throttle valve to a predetermined opening degree and executes the control of the opening degree of an air supply bypass valve.
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: October 9, 2018
    Assignee: Yanmar Co., Ltd.
    Inventors: Ryoichi Hagiwara, Osamu Yamagishi
  • Patent number: 10087827
    Abstract: A valve device for a vehicle may include a pneumatic valve having first and second chambers in which respective pressures thereof are regulated, and a pressure regulation valve coupled to the pneumatic valve, the pressure regulation valve communicating with the first chamber, including a positive pressure side opening and a negative pressure side opening, and selectively opening and closing the positive pressure side opening and the negative pressure side opening to regulate the pressure in the first chamber.
    Type: Grant
    Filed: October 5, 2016
    Date of Patent: October 2, 2018
    Assignees: Hyundai Motor Company, Kia Motors Corp.
    Inventors: Dong Ho Chu, Yang Geol Lee, Woo Young Choi, Jeong Kyu Lim
  • Patent number: 9890696
    Abstract: A turbocharger system and method for a vehicle, wherein the system comprises a high pressure turbocharger and a low pressure turbocharger. Both the high and low pressure turbochargers are driven by exhaust gas on an exhaust side of the turbochargers. The system further comprises a first bypass conduit that bypasses the low pressure turbocharger during set events.
    Type: Grant
    Filed: November 7, 2014
    Date of Patent: February 13, 2018
    Assignee: VOLVO CAR CORPORATION
    Inventors: Goran Almkvist, Jonas J. Bjorkholtz
  • Patent number: 9890697
    Abstract: Methods and systems are provided for controlling boost pressure in a staged engine system comprising a turbocharger and an upstream electric supercharger. In one example, a method may include accelerating an electric supercharger to choke the flow of air to the engine in the event of turbocharger overboost.
    Type: Grant
    Filed: May 20, 2016
    Date of Patent: February 13, 2018
    Assignee: Ford Global Technologies, LLC
    Inventors: Baitao Xiao, Hamid-Reza Ossareh, Adam Nathan Banker
  • Patent number: 9822695
    Abstract: An actuation device (1), in particular electronic actuator, having a housing (2); and having an actuation shank which has a first shank portion guided in the housing (2), and which has a second shank portion (3) projecting out of the housing (2), wherein a shielding cap (4) is provided which is fastened to the housing (2) and which surrounds the second shank portion (3) with the exception of a fastening region (5).
    Type: Grant
    Filed: September 11, 2013
    Date of Patent: November 21, 2017
    Assignee: BorgWarner Inc.
    Inventors: Jochen Kraemer, Hans-Joerg Fetzer
  • Patent number: 9765714
    Abstract: An internal combustion engine of the present invention is an internal combustion engine equipped with port injectors. Further, the internal combustion engine has an ISC passage that connects an upstream side and a downstream side of a throttle valve in an intake passage, and an ISC valve that regulates an amount of air flowing in the ISC passage. A control device of the present invention performs valve opening control that makes an opening degree of the ISC valve an opening degree larger than a reference opening degree when request torque required by the internal combustion engine is smaller than estimated torque that can be generated in the internal combustion engine, and sets a timing for fuel injection from the port injector at an opening timing of an intake valve of a cylinder in which the port injector is installed during the valve opening control.
    Type: Grant
    Filed: January 8, 2014
    Date of Patent: September 19, 2017
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Yasuhiro Kuze
  • Patent number: 9765685
    Abstract: Systems, methods, apparatus provide improved turbocharging of an internal combustion engine. A single, discrete turbocharger is affixed to each engine combustion cylinder. Turbochargers can be mounted to their associated cylinders in close proximity, thus harvesting higher energy exhaust gases from each combustion cylinder. Tip in and spool up responses can be further improved using low rotational inertia turbochargers that can operate effectively across a wide range of engine operational speeds. Controlled balancing valves between cylinder exhaust lines can deliver exhaust gases from a single cylinder selectively to multiple turbochargers in appropriate operational conditions. Moreover, multiple turbochargers' compressors can be configured in series to achieve pressurization compounding of combustion air for low RPM operation. Nesting of turbochargers relative to one another permits improved mounting of each turbocharger in close proximity to its corresponding combustion cylinder.
    Type: Grant
    Filed: August 17, 2016
    Date of Patent: September 19, 2017
    Assignee: Bright Acceleration Technologies LLC
    Inventors: James R. Clarke, Richard J. Fotsch
  • Patent number: 9726035
    Abstract: Methods and systems are provided for determining a reference position associated with a variable geometry member. One exemplary method involves actuating the variable geometry member in a first direction with a first reference torque and obtaining a first position associated with the variable geometry member in response to the first reference torque. After actuating the variable geometry member with the first reference torque, the method continues by actuating the variable geometry member in the first direction with a second reference torque that is less than the first reference torque, obtaining a second position associated with the variable geometry member in response to the second reference torque, and identifying the second position as the hard-stop reference position when a difference between the first position and the second position is less than a fault threshold.
    Type: Grant
    Filed: April 15, 2015
    Date of Patent: August 8, 2017
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Todd Andrew Ratke, Miguel Angel Perez Leal
  • Patent number: 9726074
    Abstract: A turbocharger includes: an inflow passage to guide a fluid to a housing space for a turbine wheel; an exhaust passage to discharge the fluid having rotated the turbine wheel from a turbocharger body; a bypass passage connecting the inflow passage and the exhaust passage; a valve unit having one valve for a communicating portion between the exhaust passage and the housing space, and another valve for the bypass passage; an actuator to turn the valve unit and a stem connected to the valve unit about an axis of the stem; and a controller to operate the actuator. The controller adjusts the opening of the bypass passage by turning the valve unit within a specific range about the axis of the stem when a specific condition is met, and closes the exhaust passage by turning the valve unit beyond the specific range when the specific condition is not met.
    Type: Grant
    Filed: June 24, 2014
    Date of Patent: August 8, 2017
    Assignee: IHI Corporation
    Inventors: Kazuhiro Onitsuka, Takahiro Kobayashi
  • Patent number: 9726073
    Abstract: An engine system for controlling flow of exhaust gas may include an intake line to receive external air, an engine including a combustion chamber to combust the external air and a fuel supplied through the intake line, to generate driving torque, an exhaust line to exhaust the exhaust gas combusted in the combustion chamber of the engine, a turbocharger including a turbine operated according to exhaust gas flowing through the exhaust line and a compressor to compress the external air flowing through the intake line, a catalyst device to reduce a harmful component included in the exhaust gas passing through the turbine of the turbocharger, a bypass line branched from the exhaust line between the combustion chamber and the turbine and converged in the intake line between the compressor and the combustion chamber, and a bypass valve disposed in the bypass line to selectively open/close the bypass line.
    Type: Grant
    Filed: July 13, 2015
    Date of Patent: August 8, 2017
    Assignee: Hyundai Motor Company
    Inventor: Kihoon Nam
  • Patent number: 9631551
    Abstract: An internal combustion engine includes working cylinders and a fresh gas line for supplying fresh gas to the working cylinders. The fresh gas line has a charge air section. A mechanically driven compressor is disposed in the charge air section of the fresh gas line. An air control/shut-off flap is disposed in the charge air section such that, in dependence on a position of the air control/shut-off flap, a gas mass flow in the charge air section flows completely or partially via the mechanically driven compressor or flows past the mechanically driven compressor. A method for operating an internal combustion engine is also provided.
    Type: Grant
    Filed: August 12, 2015
    Date of Patent: April 25, 2017
    Assignee: VOLKSWAGEN AKTIENGESELLSCHAFT
    Inventors: Volker Cornelius, Axel Groenendijk
  • Patent number: 9605588
    Abstract: A supercharger (15) is provided with a bypass pathway (17). A backflow preventer (20) is provided to the air intake pathway (8) between an airflow meter (10) and the bypass pathway (17). The backflow preventer (20) has: a casing (41) formed by locally expanding the cross-sectional area of the air intake pathway; and an inner tube (42) substantially constructing a duct for the mainstream of air intake. The inner tube (42) is supported by a flange portion (50) and the downstream end (42a) opens within the casing (41). During backflow when the bypass pathway (17) opens, a portion of the intake air enters into an exit-side space section (55), and the flow is prevented by the flange portion (50). Consequently, reverse flow is suppressed.
    Type: Grant
    Filed: August 6, 2014
    Date of Patent: March 28, 2017
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Takeshi Ookawa, Kiyoshi Ikegaya
  • Patent number: 9574489
    Abstract: A turbocharger control system for an internal combustion engine having first and second turbochargers connected in series includes first and second pressure sensors, and a controller. The first and second pressure sensors are disposed in an air intake of the engine, and are configured to sense boost pressure of the first and second turbochargers, respectively. The controller is configured to receive pressure signals from the first and second pressure sensors, and to control operation of at least one of the first and second turbochargers to maintain a desired boost pressure ratio.
    Type: Grant
    Filed: June 6, 2013
    Date of Patent: February 21, 2017
    Assignee: BOISE STATE UNIVERSITY
    Inventors: David Paul Schenker, Adrian Rothenbuhler
  • Patent number: 9528430
    Abstract: Systems and methods for compensating for deposits that may accumulate within a compressor recirculation valve positioned in parallel with a turbocharger compressor are presented. The systems and methods adjust actuators to maintain engine operation such that it may be more difficult for a driver to become aware that a compressor recirculation valve diagnostic is being executed.
    Type: Grant
    Filed: December 10, 2014
    Date of Patent: December 27, 2016
    Assignee: Ford Global Technologies, LLC
    Inventors: Adam Nathan Banker, Hamid-Reza Ossareh, Baitao Xiao
  • Patent number: 9416725
    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: Grant
    Filed: August 18, 2014
    Date of Patent: August 16, 2016
    Assignee: Mazda Motor Corporation
    Inventors: Yoshiyuki Uehane, Junji Umemura, Atsuhiro Hatabu
  • Patent number: 9322326
    Abstract: A method for operating an engine system is described herein. The method includes moving a plurality of vanes in a variable geometry turbocharger toward a closed position in response to tip-out and after moving the plurality of vanes toward the closed position, moving an EGR valve from a fully closed position toward an open position in response to tip-in, the EGR valve in fluidic communication with an exhaust sub-system upstream of the turbine. The method further includes, after moving the EGR valve toward an open position, moving the plurality of vanes based on one or more of a driver-requested torque, engine speed, and engine temperature.
    Type: Grant
    Filed: February 27, 2014
    Date of Patent: April 26, 2016
    Assignee: Ford Global Technologies, LLC
    Inventor: Thomas Jeremy Kostrzewski
  • Patent number: 9322323
    Abstract: A method for correcting the reduced mass flow rate of a compressor in an internal combustion engine turbocharged with a turbocharger provided with a turbine and with a compressor; the internal combustion engine including an intake manifold and an exhaust manifold, and being set up to allow the passage of air from the intake manifold to the exhaust manifold; the method including determining, in a design stage, a control law that provides a target opening of a control actuator of the wastegate as a function of an actual supercharging pressure and of a reduced mass flow rate of the compressor; and correcting the reduced mass flow rate of the compressor as a function of the enthalpy of a gas mixture flowing through the turbine of the turbocharger.
    Type: Grant
    Filed: September 9, 2014
    Date of Patent: April 26, 2016
    Assignee: MAGNETI MARELLI S.P.A.
    Inventor: Marco Panciroli
  • Patent number: 9322363
    Abstract: A method for operating an engine system is described herein. The method includes moving a plurality of vanes in a variable geometry turbocharger toward a closed position in response to tip-out and after moving the plurality of vanes toward the closed position, moving an EGR valve from a fully closed position toward an open position in response to tip-in, the EGR valve in fluidic communication with an exhaust sub-system upstream of the turbine. The method further includes, after moving the EGR valve toward an open position, moving the plurality of vanes based on one or more of a driver-requested torque, engine speed, and engine temperature.
    Type: Grant
    Filed: April 9, 2014
    Date of Patent: April 26, 2016
    Assignee: Ford Global Technologies, LLC
    Inventor: Thomas Kostrzewski
  • Patent number: 9284881
    Abstract: A method for operating a compressor, which supplies an internal combustion engine that is assigned to the compressor at its output end with air compressed to a boost pressure, in which the boost pressure is reducible by releasing the compressed air at least partially via a pressure release valve. The air released via the pressure release valve is used for driving a compressor wheel of the compressor.
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: March 15, 2016
    Assignee: ROBERT BOSCH GMBH
    Inventor: Jochen Laubender
  • Patent number: 9217363
    Abstract: A super-turbocharger utilizing a high speed, fixed ratio traction drive that is coupled to a continuously variable transmission to allow for high speed operation is provided. A high speed traction drive is utilized to provide speed reduction from the high speed turbine shaft. A second traction drive provides infinitely variable speed ratios through a continuously variable transmission. Gas recirculation in a super-turbocharger is also disclosed.
    Type: Grant
    Filed: October 16, 2013
    Date of Patent: December 22, 2015
    Assignee: VanDyne SuperTurbo, Inc.
    Inventors: Michael B. Riley, Ed VanDyne, Jared William Brown
  • Patent number: 9062632
    Abstract: In an internal combustion engine for a motor vehicle, having a first cylinder bank and a second cylinder bank and an exhaust tract including a first exhaust manifold and a second exhaust manifold with a first exhaust gas duct and a second exhaust gas duct and a first exhaust gas turbocharger including a first turbine situated in the exhaust tract and a second exhaust gas turbocharger including a second turbine arranged in the exhaust tract, the first turbine and the second turbine are selectively drivable in alternation by at least a portion of the exhaust gas via a valve device that is switchable between at least three positions and is situated upstream from the first turbine and the second turbine so that, in a first position of the valve device, the engine is operated in a pulse supercharging mode; in a second position of the valve device, the engine is operated in a ram charging mode and in a third position of the valve device, the engine is operated in a sequential supercharging mode.
    Type: Grant
    Filed: February 7, 2014
    Date of Patent: June 23, 2015
    Assignee: DAIMLER AG
    Inventors: Nils Brinkert, Thomas Kuhn
  • Patent number: 9027343
    Abstract: A method for supplying vacuum in an engine is disclosed. The method includes controlling a throttle valve positioned upstream of a supercharger arranged in series with and upstream of a turbocharger to draw a fluid from a vacuum line positioned intermediate the throttle valve and a supercharger inlet.
    Type: Grant
    Filed: June 14, 2012
    Date of Patent: May 12, 2015
    Assignee: Ford Global Technologies, LLC
    Inventor: Ross Dykstra Pursifull
  • Publication number: 20150113980
    Abstract: A system and method for operating an engine turbocharger is described. In one example, the turbocharger is rotated in different directions in response to operating conditions. The system and method may reduce engine emissions.
    Type: Application
    Filed: January 6, 2015
    Publication date: April 30, 2015
    Inventors: William Charles Ruona, Kevin Durand Byrd, Keith Michael Plagens
  • Patent number: 9016062
    Abstract: A method is disclosed for checking a valve on an exhaust gas turbocharger of an internal combustion engine, wherein an exhaust gas flow exits the internal combustion engine, a first portion of said flow flowing through a turbine of the exhaust gas turbocharger into an exhaust gas system and a second portion flowing through the valve into the exhaust gas system, wherein said method includes the steps of varying a fuel-to-air ratio in a fresh gas supplied to the internal combustion engine, determining a residual oxygen content in the exhaust gas system, and determining that the valve is defective if a variation of the residual oxygen content occurs in a manner different than a predetermined manner of the variation of the fuel-to-air ratio in the fresh gas. A device for checking the valve can be integrated into an integrated engine control unit of the internal combustion engine.
    Type: Grant
    Filed: January 12, 2012
    Date of Patent: April 28, 2015
    Assignee: Continental Automotive GmbH
    Inventors: Gerhard Eser, Thomas Burkhardt
  • 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
  • Publication number: 20150047341
    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: Application
    Filed: August 13, 2013
    Publication date: February 19, 2015
    Applicant: Ford Global Technologies, LLC
    Inventors: Joseph Norman Ulrey, Julia Helen Buckland, Gregory Patrick McConville
  • Publication number: 20150047342
    Abstract: Methods and systems are provided for coordinating adjustments to a compressor recirculation valve with adjustments to a binary flow turbine scroll valve to reduce surge. The scroll valve is closed to increase turbine energy while the compressor recirculation valve is opened to increase compressor flow. Concurrent adjustments to a wastegate may be used to provide boost pressure control.
    Type: Application
    Filed: August 13, 2013
    Publication date: February 19, 2015
    Applicant: Ford Global Technologies, LLC
    Inventors: Gregory Patrick McConville, Julia Helen Buckland, Ralph Wayne Cunningham, Brad Alan Boyer, Jeffrey Allen Doering
  • Publication number: 20150047317
    Abstract: Methods and systems are provided for using compressor recirculation flow via a venturi to enhance low pressure EGR flow. The opening of a compressor recirculation valve can be adjusted based on EGR flow demand to recirculate cooled compressed air through a venturi while generating vacuum for drawing EGR. The approach allows for concurrent EGR control and surge control.
    Type: Application
    Filed: August 13, 2013
    Publication date: February 19, 2015
    Applicant: Ford Global Technologies, LLC
    Inventors: Joseph Norman Ulrey, Gregory Patrick McConville, Daniel Joseph Styles, Ross Dykstra Pursifull, Michael Howard Shelby
  • Publication number: 20150047340
    Abstract: Methods and systems are provided for reducing condensate accumulation at a charge air cooler (CAC) during cold ambient conditions. A wastegate may be held closed while a compressor recirculation valve is held open during an engine cold start so as to use compressor heating and increased compressor recirculation to expedite CAC heating. EGR delivery is delayed until the CAC is sufficiently warm to reduce the propensity for condensation.
    Type: Application
    Filed: August 13, 2013
    Publication date: February 19, 2015
    Applicant: Ford Global Technologies, LLC
    Inventors: Joseph Norman Ulrey, Julia Helen Buckland
  • Publication number: 20150047343
    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: Application
    Filed: August 13, 2013
    Publication date: February 19, 2015
    Applicant: Ford Global Technologies, LLC
    Inventors: Gregory Patrick McConville, Julia Helen Buckland
  • 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: 8938960
    Abstract: A control apparatus for an internal combustion engine is provided that is capable of calculating a high-accuracy turbine rotational speed. A turbo supercharger which includes, in an exhaust passage, a turbine that is operated by exhaust energy of the internal combustion engine. A turbine rotational speed model which calculates a turbine rotational speed. The turbine rotational speed is corrected by an exhaust energy correction part equipped with the turbine rotational speed model.
    Type: Grant
    Filed: November 5, 2010
    Date of Patent: January 27, 2015
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Ryutaro Moriguchi, Satoru Tanaka, Machiko Katsumata
  • Publication number: 20150007562
    Abstract: A control apparatus for an internal combustion engine according to the invention is applied to an internal combustion engine that is equipped with an exhaust gas treatment device that is provided in an exhaust passage, and a burner device that is provided in the exhaust passage upstream of the exhaust gas treatment device so as to raise a temperature of exhaust gas supplied to the exhaust gas treatment device. The control apparatus performs an increase control for increasing a concentration of oxygen in exhaust gas supplied to the burner device if the concentration of oxygen is not higher than a predetermined required concentration of oxygen when there is a request to operate the burner device. The combustion performance of the burner device is stably ensured by securing or compensating for an insufficient concentration of oxygen.
    Type: Application
    Filed: January 27, 2012
    Publication date: January 8, 2015
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Akinori Morishima, Kenichi Tsujimoto
  • Publication number: 20140366529
    Abstract: First and second turbochargers for supercharging a first cylinder group which continues or stops an operation by a valve stopping mechanism for reduced cylinders, and a second cylinder group which stops or continues the operation by the valve stopping mechanism for reduced cylinders, respectively, and a third turbocharger in which air from the first and second turbochargers is supplied to the first and second cylinder groups via separate independent intake passages, to supercharge the first and second turbochargers. If a reduced-cylinder operation system provided with this valve stopping mechanism is provided in addition to the turbo-charging system, a drop in a supercharging amount during a reduced-cylinder operation is prevented, a sufficient air amount is supplied into operating cylinders, deterioration of combustion in the operating cylinders and deterioration of a state of an exhaust gas are prevented, and fuel efficiency is improved.
    Type: Application
    Filed: February 7, 2013
    Publication date: December 18, 2014
    Applicant: ISUZU MOTORS LIMITED
    Inventor: Akira Komatsu
  • Publication number: 20140366527
    Abstract: An engine system having a compressor coupled to an engine and supplying air to an intake manifold, a throttle controlling the supply of air from the compressor to the intake manifold, a vacuum reservoir, an aspirator having its motive section in fluid communication with the air intake system upstream of the compressor and its discharge section in fluid communication downstream of the compressor and a suction port in fluid communication with the vacuum reservoir, a compressor recirculation valve having a pneumatic control chamber in fluid communication with downstream air from the compressor and in fluid communication with the vacuum reservoir, a gate valve controlling the fluid communication of the pneumatic control chamber of the compressor recirculation valve with the downstream air and the vacuum reservoir, and a bleed line having a bleed valve in fluid communication with the vacuum reservoir and the pneumatic control chamber of the compressor recirculation valve.
    Type: Application
    Filed: June 13, 2014
    Publication date: December 18, 2014
    Applicant: DAYCO IP HOLDINGS, LLC
    Inventors: Dave Fletcher, Brian M. Graichen, Keith Hampton, Matt Gilmer, James H. Miller, Steve Long
  • Publication number: 20140366528
    Abstract: An engine control system coordinates control of a pressure regulating mechanism associated with a turbocharger turbine and control of a variable valve actuating (VVA) mechanism for expanding the range of possible exhaust gas recirculation rates over a large portion of an engine operating map to provide EGR rates which are greater than typical present-day levels while mitigating engine pumping losses by causing the turbocharger to operate with better efficiency in some regions of the map where it otherwise would not. Turbocharger efficiency is improved by controlling the VVA mechanism to set the timing of operation of its respective cylinder valves in accordance with a predetermined correlation of operating efficiencies of a compressor to timing of operation of respective engine cylinder valves, causing the compressor to operate at points of better efficiency than it otherwise would without use of VVA.
    Type: Application
    Filed: January 17, 2012
    Publication date: December 18, 2014
    Applicant: International Engine Intellectual Property Company, LLC
    Inventors: Laura M. Ricart-Ugaz, Qianfan Xin, Daniel Cornelius
  • Publication number: 20140325981
    Abstract: The inventive turbo supercharging device with air bleed and regeneration (1) for an alternating internal combustion heat engine (2) includes a regenerating exchanger (31) in which the exhaust gases expelled by the engine (2) circulate, the latter transferring their heat to other gases expelled by a centrifugal power compressor (21) before the latter are expanded by a power turbine (27) that rotates the compressor (21), then are cooled in the regenerating exchanger (31) while transferring their heat to the gases expelled by the compressor (21).
    Type: Application
    Filed: May 29, 2014
    Publication date: November 6, 2014
    Inventor: Vianney RABHI
  • Patent number: 8857176
    Abstract: An engine provided with a variable parallel supercharging system (9) comprising a first supercharger (10) which is driven by exhaust gas which flows in a first exhaust gas route (41) and which pressurizes intake air which flows in a first intake air route (3) and also comprising a second supercharger (20) which is driven by exhaust gas which flows in a second exhaust gas route (42) and which pressurizes intake air which flows in a second intake air route (4), a supercharging pressure sensor (63) for detecting the pressure of the pressurized intake air, a first supercharger rotation sensor (61) for detecting the rotational speed of the first supercharger (10), a second supercharger rotation sensor (62) for detecting the rotational speed of the second supercharger (20), a first variable actuator (14) for adjusting the capacity of the first supercharger (10), a second variable actuator (24) for adjusting the capacity of the second supercharger (20), and a control device for controlling each of the variable actua
    Type: Grant
    Filed: September 17, 2009
    Date of Patent: October 14, 2014
    Assignee: Yanmar Co., Ltd.
    Inventors: Takeshi Takahashi, Hidenori Nomura, Kazuki Maetani, Terumitsu Takahata, Takao Kawabe, Kazuhiro Takenaka
  • Patent number: 8850811
    Abstract: Systems and methods for determining compression device degradation of an engine of a rail vehicle are provided. In one embodiment, a rail vehicle system includes an engine, an air-intake passage coupled to the engine, a compression device including a compressor positioned along the air-intake passage, a barometric air pressure sensor for measuring a barometric air pressure upstream of the compressor, a manifold air pressure sensor for measuring a manifold air pressure downstream of the compressor, and a controller configured to adjust a rail vehicle operating parameter responsive to a determination of compression device degradation based on a negative pressure differential between the manifold air pressure and the barometric air pressure during a designated operating condition.
    Type: Grant
    Filed: October 12, 2010
    Date of Patent: October 7, 2014
    Assignee: General Electric Company
    Inventors: Paul Gerard Nistler, James Robert Mischler, Luke Henry, William Gray
  • Publication number: 20140260240
    Abstract: In an embodiment, a method for turbocharging a stratified charge engine includes flowing, in a turbocharged mode, exhaust gas from the engine into a turbocharger based on the engine having a load greater than a threshold load and the engine operating in a first range of engine speeds, the threshold load comprising a peak load for engine operation in a naturally-aspirated mode using a lean air-fuel mixture and providing, by the turbocharger while in the turbocharged mode, an increased amount of air to a combustion chamber in the engine based on the turbocharger receiving the exhaust gas. The method also includes restricting flow, in the naturally-aspirated mode, of the exhaust gas into the turbocharger based on at least one of: the engine having a load less than the threshold load or the engine operating in a second range of engine speeds, the second range being greater than the first range.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventor: Ko-Jen Wu
  • Publication number: 20140230430
    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: Application
    Filed: February 19, 2013
    Publication date: August 21, 2014
    Applicant: THE BOEING COMPANY
    Inventor: The Boeing Company
  • 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
  • Patent number: 8783227
    Abstract: An engine is designed to allow a compression self-ignition combustion under an air-fuel ratio leaner than a stoichiometric air-fuel ratio to be performed at least in a partial-load range of the engine. Under a condition that an engine speed varies at a same load in an engine operating region of the compression self-ignition combustion, a compression end temperature Tx, which is an in-cylinder temperature just before an air-fuel mixture self-ignites, is controlled to be raised higher in a higher engine speed side than in a lower engine speed side. As one example of control for the compression end temperature Tx, an internal EGR amount is controlled to be increased larger in the higher engine speed side than in the lower engine speed side, to raise a compression initial temperature T0 which is an in-cylinder temperature at a start timing of a compression stroke.
    Type: Grant
    Filed: January 24, 2011
    Date of Patent: July 22, 2014
    Assignee: Mazda Motor Corporation
    Inventors: Masahisa Yamakawa, Kouhei Iwai, Shuji Oba
  • Publication number: 20140144133
    Abstract: A overrun air recirculation valve (1) having a housing (2) which delimits a housing interior (3); a diaphragm (4) which has a diaphragm area (AO) and which divides the housing interior (3) into a first chamber (5) and a second chamber (6); and a valve plunger (7) which has a plunger area (AU), which is connected to the diaphragm (4) via a valve rod (8) and which is preloaded into a closed position by means of a spring (9). The diaphragm area (AO) is greater than the plunger area (AU).
    Type: Application
    Filed: May 24, 2012
    Publication date: May 29, 2014
    Applicant: BORGWARNER INC.
    Inventor: Ralf Christmann
  • Publication number: 20140137552
    Abstract: Provided is a control device for an internal combustion engine, which improves acceleration performance while maintaining fuel performance in a non-supercharging operation range. A bypass passage (33) which bypasses a turbine (32c, 32d) of a supercharger is provided. In the bypass passage (33), a wastegate valve (33a) for adjusting a flow-path area of the bypass passage (33) by a wastegate actuator (33b) is provided. For an operation in the non-supercharging operation range, an opening degree of the wastegate valve (33a) is set to fully close the wastegate valve (33a) when a ratio of a pressure (Pb) of an intake manifold (22) and an atmospheric pressure (P1) is smaller than a threshold value.
    Type: Application
    Filed: April 1, 2013
    Publication date: May 22, 2014
    Inventors: Michihisa YOKONO, Tomokazu MAKINO, Takahiko ONO
  • Publication number: 20140090372
    Abstract: A method for operating a compressor, which supplies an internal combustion engine that is assigned to the compressor at its output end with air compressed to a boost pressure, in which the boost pressure is reducible by releasing the compressed air at least partially via a pressure release valve. The air released via the pressure release valve is used for driving a compressor wheel of the compressor.
    Type: Application
    Filed: September 27, 2013
    Publication date: April 3, 2014
    Applicant: Robert Bosch GmbH
    Inventor: Jochen LAUBENDER
  • Patent number: 8683987
    Abstract: Otto intake-cycle controlled-air (throttled) internal combustion engines suffer from parasitic pumping losses associated with partial vacuums developed in their intake manifolds and in the cylinders above their pistons. To solve this problem, there is provided individually partitioned dry-sump crankcases dynamic pneumatic coupling pressure reduction cycle system and method that reduce the damaging parasitic effects of the differential pressure about a piston head during an intake cycle which is a source of part-load pumping-loss friction. This closed loop system includes an independent supplemental mechanical fail-safe system of a turbo-compound engine variant for pneumatic coupling of individual cylinder-crankcase volumes. It does not alter the cylinder homogeneous mixture charge integrity and stability. The system is applicable to several engine configurations, such as controlled air intake or uncontrolled air intake combustion engines, using different fuel types, either in liquid or in gazeous state.
    Type: Grant
    Filed: October 14, 2010
    Date of Patent: April 1, 2014
    Assignee: R & D Machma Inc.
    Inventor: Jean-Pierre Marcil