Plural Superchargers Patents (Class 60/612)
  • Patent number: 11554782
    Abstract: An apparatus of controlling an engine including an electric supercharger includes: an engine to combust fuel to generate power; a drive motor to assist the power of the engine and selectively operate as a generator to generate electrical energy; a battery configured to supply electrical energy to the drive motor and to be charged by the electrical energy generated from the drive motor; a plurality of electric superchargers respectively installed in a plurality of intake lines through which an ambient air flows to be supplied to a combustion chamber of the engine; and a controller that based on a determined driving tendency, adjusts a target speed of the electric superchargers of the plurality of electric superchargers, determine a driving mode of the electric superchargers, limits a maximum output of the engine, and variably adjusts a SOC electricity-generating region where the engine charges the battery.
    Type: Grant
    Filed: May 8, 2020
    Date of Patent: January 17, 2023
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Yeongseop Park, Dong Hee Han, Hyun Woo Lim, Buhm Joo Suh, Jinkuk Cho, Kwanhee Lee, Sungchan Na, Jihyun Park, Seungwoo Hong, Yong Kak Choi, Hyunjin Kang
  • Patent number: 11549450
    Abstract: Methods and systems are provided for controlling airflow of an accumulator of a motorized vehicle. In one example, a method includes storing pressurized gases within the accumulator by flowing intake air from a compressor of an engine of the vehicle to a pressure booster arranged upstream of the accumulator. Pressurized gases stored within the accumulator may be used to drive one or more pneumatic devices.
    Type: Grant
    Filed: February 7, 2022
    Date of Patent: January 10, 2023
    Assignee: Ford Global Technologies, LLC
    Inventors: John Eric Rollinger, Douglas Raymond Martin
  • Patent number: 11454163
    Abstract: An engine system includes an engine having first and second exhaust manifolds each having outlet ports and a bypass runner. A first turbocharger is in fluid communication with the outlet port of the first manifold, and a second turbocharger in fluid communication with the outlet port of the second manifold. An exhaust aftertreatment device is in fluid communication with the first and second turbochargers. A turbocharger bypass circuit includes a valve assembly having an inlet side connected in fluid communication with the bypass runners of the first and second manifolds, an outlet side in fluid communication with the aftertreatment device, and a valve having an open position in which the inlet and outlet sides are in fluid communication and a closed position in which the inlet and outlet sides are not in fluid communication.
    Type: Grant
    Filed: April 9, 2021
    Date of Patent: September 27, 2022
    Assignee: Ford Global Technologies, LLC
    Inventors: Keith Michael Plagens, Bradley Alan Boyer, Gregory Patrick McConville, Xiaogang Zhang, Thomas Polley, Eric Warren Curtis
  • Patent number: 11408330
    Abstract: The invention relates to a method of operating a four stroke internal combustion engine system (1), the engine system (1) comprising:—a four stroke internal combustion engine (2) provided with an intake duct (5),—a turbo compressor (6?) arranged to compress intake flow in the intake duct (5), and—a displacement machine (7) provided in the intake duct (5) downstream the turbo compressor (6?), wherein the displacement machine (7) is arranged to displace intake flow from an inlet to an outlet thereof. The method comprises the step of: operating the displacement machine (7) in a first mode where a pressure ratio (PR) given by a pressure at the outlet of the displacement machine (7) divided by a pressure at the inlet of the displacement machine (7) is substantially equal to 1. The invention also relates to a four stroke internal combustion engine system arranged to be operated by the above method.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: August 9, 2022
    Assignee: VOLVO TRUCK CORPORATION
    Inventors: Martin Bauer, Fredrik Rahm
  • Patent number: 11396841
    Abstract: An air handling arrangement in a two-stroke cycle, opposed-piston engine with uniflow scavenging and constructed for heavy-duty operation includes sequentially arranged turbochargers in series with a supercharger. In some aspects, the air handling system is equipped with an EGR channel.
    Type: Grant
    Filed: February 13, 2020
    Date of Patent: July 26, 2022
    Assignee: Achates Power, Inc.
    Inventors: Gerhard Regner, Michael Chiang
  • Patent number: 11352943
    Abstract: A rotation adjusting device is controlled such that an engine speed rising rate at the time of acceleration request is made smaller when a turbocharging pressure is lower than the turbocharging pressure is higher. Therefore, an engine speed can be increased at such a low speed that a rising delay in the turbocharging pressure hardly occurs, in a low turbocharging pressure region. Further, when the rotation adjusting device is controlled such that the engine speed rising rate at the time of the acceleration request is set to a value corresponding to the turbocharging pressure, an MG2 torque is controlled to compensate for an insufficient drive torque of an actual engine torque for a request engine torque. Therefore, even when the engine torque is increased slowly by increasing the engine speed at a slow speed, the insufficient drive torque is compensated for by the MG2 torque.
    Type: Grant
    Filed: June 30, 2020
    Date of Patent: June 7, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Atsushi Tabata, Koichi Okuda, Tooru Matsubara, Takahiro Kimura, Yasutaka Tsuchida
  • Patent number: 11333173
    Abstract: The gas turbine engine described includes a first centrifugal compressor, a second centrifugal compressor, and intercompressor pipes extending therebetween. The intercompressor pipes fluidly interconnect an exit of a first impeller of the first centrifugal compressor and an inlet of a second impeller of the second centrifugal compressor. The intercompressor pipes have heat transfer structures on outer surfaces thereof to increase convective heat transfer.
    Type: Grant
    Filed: May 8, 2019
    Date of Patent: May 17, 2022
    Assignee: PRATT & WHITNEY CANADA CORP.
    Inventors: Jason Nichols, Yves Cloutier
  • Patent number: 11300040
    Abstract: A controller for an internal combustion engine includes an intake air amount obtaining unit, an open-closed determination unit, and an air bypass valve control unit. The intake air amount obtaining unit is configured to obtain, using a target torque of the internal combustion engine, a target throttle passage amount as a target value of an amount of intake air drawn through a throttle valve. The open-closed determination unit is configured to determine whether a valve opening condition for first and second air bypass valves is satisfied. The air bypass valve control unit is configured to open the first and second air bypass valves when the valve opening condition is satisfied. The open-closed determination unit is configured to determine that the valve opening condition is satisfied when a decrease speed of the target throttle passage amount is greater than a specified determination speed.
    Type: Grant
    Filed: December 4, 2020
    Date of Patent: April 12, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Satoshi Yoshizaki, Masayuki Hisada, Masahiro Noguchi
  • Patent number: 11280282
    Abstract: Methods and systems are provided for controlling airflow of an accumulator of a motorized vehicle. In one example, a method includes storing pressurized gases within the accumulator by flowing intake air from a compressor of an engine of the vehicle to a pressure booster arranged upstream of the accumulator. Pressurized gases stored within the accumulator may be used to drive one or more pneumatic devices.
    Type: Grant
    Filed: June 8, 2020
    Date of Patent: March 22, 2022
    Assignee: Ford Global Technologies, LLC
    Inventors: John Eric Rollinger, Douglas Raymond Martin
  • Patent number: 11199143
    Abstract: An internal combustion engine has two cylinder banks, an electrical compressor, and at least one turbocharger, in which a first shut-off valve, which is arranged in the line leading from an e-compressor outlet to air-collecting devices of the cylinder banks, can at least release and block a throughflow through the line. A method operates the internal combustion engine, by which the internal combustion chamber is operated symmetrically or asymmetrically, depending on the engine speed.
    Type: Grant
    Filed: March 25, 2020
    Date of Patent: December 14, 2021
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Hans-Juergen Farsch, Dirk Christian Leinhos
  • Patent number: 11168607
    Abstract: A method for operating an internal combustion engine with a system for supercharging that includes an exhaust turbocharger and an electrically driven charging device for dynamic assistance during build-up of boost pressure, with: determining a drive criterion of the charging device, establishing an initial quantity of the drive criterion; continuously determining a reduction factor for the drive criterion within a balance period; applying the reduction factor to the initial quantity of the drive criterion; and operating the charging device with the drive criterion reduced by the reduction factor.
    Type: Grant
    Filed: February 28, 2020
    Date of Patent: November 9, 2021
    Assignee: Volkswagen Aktiengesellschaft
    Inventors: Sebastian Keich, Javier Bartolome, Florian Frese, Sebastian Heinken
  • Patent number: 11156191
    Abstract: An internal combustion engine having two “banks” of cylinders, the “banks” being defined by cross-connection to different turbochargers. The exhaust from one bank of cylinders goes to a first turbocharger, and the exhaust from the other bank of cylinders goes to a second turbocharger. However, the compressed air delivered from the turbochargers is cross-connected to the cylinder banks. This allows a cylinder bank to be boosted with a turbocharger whose compressed air output does not necessarily match the exhaust energy of that cylinder bank.
    Type: Grant
    Filed: November 22, 2019
    Date of Patent: October 26, 2021
    Assignee: Southwest Research Institute
    Inventors: Shinhyuk Joo, Christopher James Chadwell
  • Patent number: 11078830
    Abstract: A multi-stage turbocharger includes a turbine housing including a first sub-housing that has a first turbine-wheel chamber and a second sub-housing that has a second turbine-wheel chamber arranged in series to the first turbine-wheel chamber, a first compressor housing coupled to the turbine housing via a first bearing housing, and a second compressor housing coupled to the turbine housing via a second bearing housing. The first sub-housing and the second sub-housing are formed integrally with each other.
    Type: Grant
    Filed: November 5, 2019
    Date of Patent: August 3, 2021
    Assignee: IHI Corporation
    Inventors: Kiyomichi Ichikawa, Yoshimitsu Matsuyama, Munehiro Yoshida
  • Patent number: 11073075
    Abstract: An engine device 1 includes: an exhaust manifold 4 disposed on one of left and right sides of a cylinder head 2, and an intake manifold 3 disposed on the other of the left and right sides of the cylinder head 2; and a turbocharger 30 that uses fluid energy of an exhaust gas discharged from the exhaust manifold 4, to compress fresh air to be flowed into the intake manifold 3. The turbocharger 30 is constituted by a two-stage turbocharger including a high-pressure turbocharger 51 coupled to the exhaust manifold 4 and a low-pressure turbocharger 52 coupled to the high-pressure turbocharger 51. The high-pressure turbocharger 51 is disposed on one of left and right lateral sides of the exhaust manifold 4, while the low-pressure turbocharger 52 is disposed above the exhaust manifold 4.
    Type: Grant
    Filed: August 8, 2020
    Date of Patent: July 27, 2021
    Assignee: Yanmar Power Technology Co., Ltd.
    Inventor: Masataka Uchibori
  • Patent number: 11022028
    Abstract: An engine system includes an internal combustion engine having an intake passage, a first set of combustion chambers, a second set of combustion chambers, a first exhaust passage fluidly connected to the first set of combustion chambers, and a second exhaust passage fluidly connected to the second set of combustion chambers. The engine system includes a first turbocharger including a first compressor and a first turbine. The engine system also includes a second turbocharger including a second compressor and a second turbine, the second compressor connected in series with the first compressor, and the second turbine being in fluid communication with the second exhaust passage. The first and second turbines are connected in parallel such that the first turbine only receives exhaust flow from the first set of combustion chambers, and the second turbine only receives exhaust flow from the second set of combustion chambers.
    Type: Grant
    Filed: May 7, 2019
    Date of Patent: June 1, 2021
    Assignee: Caterpillar Inc.
    Inventor: Christopher Lusardi
  • Patent number: 11015553
    Abstract: Systems and methods for internal combustion engine operation with exhaust gas recirculation and turbocharging are disclosed. The systems include an exhaust gas recirculation loop for recirculating exhaust gas flow from a first portion of the cylinders of the engine into an intake system prior to combustion. The system further includes a turbine with first and second inlets for receiving exhaust gas flows from respective first and second parts of the exhaust gas of the remaining portion of the cylinders.
    Type: Grant
    Filed: January 9, 2019
    Date of Patent: May 25, 2021
    Assignee: Cummins Inc.
    Inventors: Sudhanshu Talwar, Samuel C. Geckler, Marten H. Dane
  • Patent number: 11008985
    Abstract: An internal combustion engine is provided with: an electric supercharger including an electric compressor; an EGR introduction port formed upstream of the electric compressor; a throttle valve A arranged upstream of the EGR introduction port; and a control device. A throttle valve B other than the throttle valve A is not arranged in the intake air passage. The control device is configured, in a non-supercharging region, to execute a first air flow rate adjustment processing that adjusts an intake air flow rate by adjusting the opening degree of the throttle valve A while driving the electric supercharger to cause a pressure ratio of the electric compressor to approach 1; and a second air flow rate adjustment processing that adjusts the intake air flow rate by adjusting the opening degree of the throttle valve A while not energizing the electric supercharger.
    Type: Grant
    Filed: January 23, 2019
    Date of Patent: May 18, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Shigeki Miyashita
  • Patent number: 10968866
    Abstract: An internal combustion gas engine (2) is disclosed. It includes a cylinder arrangement (4) and a first compressor (6) for compressing a gaseous fuel and air mixture. The at least one cylinder arrangement (4) forms a combustion chamber (8) and includes an intake arrangement (10) for intake of charge gas, a sparkplug (12), and a pre-chamber (14). The engine (2) comprises a second compressor (16) for compressing a gaseous medium, and a pressure reducer (18). An outlet (20) of the first compressor (6) is arranged in parallel with an outlet (22) of the second compressor (16). The outlet (20) of the first compressor (6) is connected to the pre-chamber (14). The outlet (20) of the first compressor (6) and the outlet (22) of the second compressor (16) are connected to the pressure reducer (18). An outlet (24) of the pressure reducer (18) is connected to the intake arrangement (10).
    Type: Grant
    Filed: April 20, 2018
    Date of Patent: April 6, 2021
    Inventor: Svante Lejon
  • Patent number: 10787955
    Abstract: A two-stage turbo system includes: a high-pressure stage turbocharger having a high-pressure stage turbine disposed in an exhaust passage of an engine; and a low-pressure stage turbocharger which includes a low-pressure stage turbine disposed downstream of the high-pressure stage turbine in the exhaust passage, and which is larger in size than the high-pressure stage turbocharger. The low-pressure stage turbine includes at least two scroll passages including a first scroll passage and a second scroll passage, which together form a scroll part for introducing exhaust gas into a nozzle flow passage of the low-pressure stage turbine. The scroll part is configured such that a first range of the nozzle flow passage into which the exhaust gas passing through the first scroll passage is introduced does not overlap with a second range of the nozzle flow passage into which the exhaust gas passing through the second scroll passage is introduced, in a circumferential direction of the nozzle flow passage.
    Type: Grant
    Filed: March 3, 2017
    Date of Patent: September 29, 2020
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Toyotaka Yoshida, Kunihiro Tomikawa
  • Patent number: 10767602
    Abstract: An engine system includes: an engine having a combustion chamber generating a driving torque by combust of a fuel; a plurality of intake lines through which outside air flows to the combustion chamber; an exhaust manifold connected to the combustion chamber at an exhaust side; at least two electric superchargers disposed on the plurality of intake lines, respectively; and an exhaust gas recirculation (EGR) system including a recirculation line branched from the exhaust manifold and joined to one of the plurality of intake lines and a recirculation valve disposed on the recirculation line.
    Type: Grant
    Filed: November 14, 2018
    Date of Patent: September 8, 2020
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Seungwoo Hong, Jong Il Park, Hyungbok Lee, Heechang Oh, Yeongseop Park, Dong Hee Han, Joowon Lee
  • Patent number: 10697356
    Abstract: Systems, methods and apparatus for connection of a multi-stage turbocharger to a heat exchanger are disclosed. The multi-stage turbocharger includes at least first and second compressors with respective first and second outlets. An air intake system is provided that connects each of the first and second compressor outlets to a common inlet of a heat exchanger. The air intake system includes a flow transition segment connected to the first and second compressor outlets, a diffuser segment, and a flow delivery segment connected to the inlet of the heat exchanger.
    Type: Grant
    Filed: February 28, 2018
    Date of Patent: June 30, 2020
    Assignee: Cummins Inc.
    Inventors: Scott Robert Bardakjy, Ligong Yang
  • Patent number: 10641163
    Abstract: A supercharged internal combustion engine has cylinder groups with plural cylinders and plural exhaust gas turbochargers. Exhaust gas can be fed to at least one first exhaust gas turbocharger from first outlet valves of the cylinders of the first and second cylinder groups via at least one first exhaust manifold. Exhaust gas can be fed to at least one second exhaust gas turbocharger from second outlet valves of cylinders of the first and second cylinder groups via a second exhaust manifold. At low rotational speeds and/or in part load and/or non-steady state operation, exhaust gas can be fed via the first exhaust manifolds that are connected to the first outlet valves per cylinder group to a turbine of the first exhaust gas turbocharger in flows that can be divided in the inflow region of the turbine, while the second exhaust gas turbocharger is inactive.
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: May 5, 2020
    Assignee: Dr. Ing. h.c. F. Porsche Aktiengesellschaft
    Inventors: Peter Rothenberger, Erwin Rutschmann, Dietmar Schwarzenthal
  • Patent number: 10570822
    Abstract: A turbocharger system includes a manifold system that maintains separation between flow paths of different manifold arrangements. One manifold arrangement directs flow from a first group of combustion chambers to a first volute passage of a turbine section of a turbocharger. Another manifold arrangement directs flow from a second group of combustion chambers to a second volute passage of the turbine section of the turbocharger. The system also provides selective variation of the available volume for exhaust flow through the manifold arrangements.
    Type: Grant
    Filed: June 26, 2017
    Date of Patent: February 25, 2020
    Assignee: GARRETT TRANSPORTATION I INC.
    Inventor: Darius Mehta
  • Patent number: 10513976
    Abstract: An engine system includes an engine including one or more cylinders for generating a driving torque, a plurality of intake lines for supplying external air to the one or more cylinders, and one or more electric superchargers disposed on, or in, the plurality of intake lines.
    Type: Grant
    Filed: June 19, 2017
    Date of Patent: December 24, 2019
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Dong Hee Han, Jong Il Park, Seungwoo Hong, Joowon Lee, Yeongseop Park, Dong Ho Chu, Hyungbok Lee
  • Patent number: 10465621
    Abstract: Synergistic induction and turbocharging includes the use of one or more throttles in close proximity to each cylinder intake valve to control air flow in each intake port delivering air to combustion cylinders in an internal combustion engine system. A turbocharger may also be affixed in close proximity to each cylinder exhaust valve to enable a synergistic combination of hyper-filling cylinders with combustion air and immediate harvesting of exhaust gas by adjacent turbochargers. In some implementations the turbochargers may be low-inertia turbochargers. The combination of individual throttles per intake port and a turbocharger in close proximity to each cylinder enables faster ramp-up of an engine in the early stages of acceleration. Various implementations thus provide improved fuel economy and improved engine performance in tandem, instead of one at the expense of the other.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: November 5, 2019
    Assignee: Bright Acceleration Technologies LLC
    Inventors: James R. Clarke, Richard J. Fotsch, C. Thomas Sylke
  • Patent number: 10422289
    Abstract: Methods and systems are provided for coordinated control of a compound boosting system, including a first compressor staged upstream of a second compressor in an engine intake. In one example, a method may include operating the second, downstream compressor in steady-state to achieve an overall pressure ratio across the compound boosting system while operating the first, upstream compressor transiently, based on an airflow shortfall at the downstream compressor. A timing and amount of electric assistance provided to transiently operate the first, upstream compressor may be adjusted dynamically as the pressure ratio across the second compressor changes.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: September 24, 2019
    Assignee: Ford Global Technologies, LLC
    Inventors: Baitao Xiao, David Bell, Tyler Kelly, Timothy Stolzenfeld, Julia Helen Buckland
  • Patent number: 10253681
    Abstract: An engine device which can simplify a supply air cooling structure of an engine as well as simplifying a support structure of a first supercharger and a second supercharger. In an engine device in which the first supercharger and the second supercharger are arranged in series in an exhaust gas discharge channel of the engine, the first supercharger and the second supercharger are arranged in one side surface of the engine, the second supercharger is arranged so as to be close to the one side surface of the engine, and the first supercharger is arranged so as to be away from the one side surface of the engine.
    Type: Grant
    Filed: October 22, 2014
    Date of Patent: April 9, 2019
    Assignee: Yanmar Co., Ltd.
    Inventors: Shunji Hamaoka, Fumihiro Nishimura, Tetsuya Yokoyama
  • Patent number: 10227912
    Abstract: A gas engine includes a mixing unit for mixing two gas components, which are fed to one or more combustion chambers of the gas engine, in particular for mixing fuel gas and charge air, as well as two compressors. By way of the compressors, the two gas components are separately compressed before the two gas components are fed to the mixing unit. Both compressors are driven by a turbine arranged in the exhaust gas system of the gas engine.
    Type: Grant
    Filed: July 3, 2014
    Date of Patent: March 12, 2019
    Assignee: Liebherr-Machines Bulle SA
    Inventor: Thomas Gebhardt
  • Patent number: 10215109
    Abstract: A method for regulating the charge pressure pboost of a supercharged internal combustion engine is disclosed. The method may include adjusting each of two wastegates, a variable turbine geometry, and a downstream compressor bypass valve to regulate engine boost pressure as a function of a first setpoint value for pressure between compressors and a pressure difference in a first regulation loop, a second setpoint value for pressure downstream of multiple compressors, and the pressure difference in a second regulation loop.
    Type: Grant
    Filed: August 9, 2016
    Date of Patent: February 26, 2019
    Assignee: Ford Global Technologies, LLC
    Inventors: Arno Bartsch, Benedikt Seier, Alain Marie Roger Chevalier, Michael Marbaix
  • Patent number: 10197020
    Abstract: An engine system (40) includes an engine (42), and a turbocharger (1) that receives exhaust gas from the engine (42) and delivers charged air to the engine (42). The engine system (40) also includes an electrically-driven compressor-expander (60) disposed in the engine air intake passage (48) between a compressor section (10) of the turbocharger (1) and the engine (42). The compressor-expander (60) is configured to modify the pressure and temperature characteristics of the charged air flow exiting the turbocharger compressor section (10). A valve (50) controls the flow path and/or direction of the charged air flow as it enters the compressor-expander (60).
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: February 5, 2019
    Assignee: BorgWarner Inc.
    Inventors: Jeffrey Carter, Keith Nickson
  • Patent number: 10190485
    Abstract: A control apparatus for an engine is configured to control the engine provided with: an exhaust-driven supercharger, provided with an adjusting mechanism which can change supercharging efficiency according to an opening degree, in an exhaust passage, and having a first control mode and a second control mode as a control mode of the adjusting mechanism, the first control mode allowing the opening degree to be maintained at a maximum supercharging efficiency opening degree at which the exhaust-driven supercharger has maximum supercharging efficiency without using a deviation between a target supercharging pressure and an actual supercharging pressure, the second control mode allowing the deviation to be fed back to the opening degree; and an electrically-driven supercharger driven by electric power supplied from a power supply.
    Type: Grant
    Filed: May 15, 2015
    Date of Patent: January 29, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Naruto Yamane
  • Patent number: 10132234
    Abstract: A method of controlling a turbocharger of a vehicle includes determining, by a controller, a target boost pressure of intake air of a plurality of turbochargers according to one or more vehicle driving conditions, and determining target opening ratios of a plurality of wastegates respectively provided in the plurality of turbochargers, according to the target boost pressure, determining, by the controller, whether or not a current opening ratio detected by an opening ratio sensor of any one wastegate of the plurality of wastegates is lower than the target opening ratio of the associated wastegate by a reference value, and limiting, by the controller, a maximum rpm of the turbocharger having the associated wastegate when it is determined that the current opening ratio of the associated wastegate is lower than the target opening ratio by the reference value.
    Type: Grant
    Filed: November 3, 2016
    Date of Patent: November 20, 2018
    Assignee: HYUNDAI MOTOR COMPANY
    Inventor: Hyun Kim
  • Patent number: 10132231
    Abstract: A control apparatus for an internal combustion engine is configured, when regenerative processing by an electric supercharger is executed, to control the opening degree of a throttle valve, the opening degree of an intake bypass valve and the power generation load on a motor generator to set the opening degree of the intake bypass valve and the power regeneration load so that a second intake pressure which is an intake pressure downstream of an electric compressor and upstream of a turbo compressor does not fall below a second specific pressure value, based on a request intake air flow rate of the internal combustion engine and the second intake pressure.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: November 20, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Masahiro Iwamoto
  • Patent number: 10107182
    Abstract: Methods and systems are provided for enhancing turbocharger performance for a boosted engine system configured to operate with a pattern of deactivated cylinders. In one example, a method may include, in response to a demand for boost, operating with a cylinder pattern based on boost demand and turbocharger configuration. The specific pattern may depend on the pattern constraints imposed by engine load and NVH metrics.
    Type: Grant
    Filed: September 13, 2017
    Date of Patent: October 23, 2018
    Assignee: Ford Global Technologies, LLC
    Inventor: Brad Alan VanDerWege
  • Patent number: 10107180
    Abstract: A supercharged internal combustion engine includes at least two exhaust-gas turbochargers arranged in series, wherein a first exhaust-gas turbocharger serves as a low-pressure stage and a second exhaust-gas turbocharger serves as a high-pressure stage. A second turbine of the second exhaust-gas turbocharger may be present upstream of a first turbine of the first exhaust-gas turbocharger, and a second compressor of the second exhaust-gas turbocharger may be arranged in an intake system downstream of a first compressor of the first exhaust-gas turbocharger and a first bypass line may branch off upstream of the second turbine and join back at a junction point between the first turbine and the second turbine.
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: October 23, 2018
    Assignee: Ford Global Technologies, LLC
    Inventors: Joerg Kemmerling, Vanco Smiljanovski, Helmut Matthias Kindl, Werner Willems, Franz Arnd Sommerhoff, Andreas Kuske, Claudia Conee, Tim Franken, Michael Forsting
  • Patent number: 10100786
    Abstract: A system is provided comprising an engine having a first cylinder bank and a second cylinder bank disposed in a VEE configuration, a first compressor configured to compress fluid to a first pressure, a first cooler coupled to the first compressor, the first cooler receiving the compressed fluid from the first compressor and cooling the compressed fluid, a second compressor coupled to the first cooler, the second compressor being configured to receive cooled, compressed fluid from the first cooler and compress the cooled, compressed fluid to a second pressure that is higher than the first pressure, and a second cooler coupled to the second compressor, the second cooler receiving the compressed fluid from the second compressor and cooling the compressed fluid for introduction into the pair of cylinder banks. The first compressor, the first cooler, the second compressor and the second cooler are disposed within the VEE.
    Type: Grant
    Filed: June 8, 2016
    Date of Patent: October 16, 2018
    Assignee: CUMMINS INC.
    Inventors: Robin J. Bremmer, Philipe F. Saad
  • Patent number: 10060335
    Abstract: Methods and systems are provided for a turbocharger of an engine. In one example, a method may include balancing a pressure differential between compressor wheels of the turbocharger.
    Type: Grant
    Filed: July 12, 2016
    Date of Patent: August 28, 2018
    Assignee: Ford Global Technologies, LLC
    Inventors: Helmut Matthias Kindl, Vanco Smiljanovski, Joerg Kemmerling, Franz Arnd Sommerhoff, Andreas Kuske
  • Patent number: 10054039
    Abstract: A system having an engine is provided. The system includes a high pressure (HP) turbocharger and a low pressure (LP) turbocharger connected in series with each other. The system also includes a first valve assembly configured to selectively bypass at least a portion of the exhaust from the engine to the LP turbocharger. The system also includes a storage tank configured to store a pressurized fluid and configured to be in fluid communication with the HP turbocharger and the LP turbocharger. The system further includes a second valve assembly in fluid communication with the storage tank, the HP turbocharger and the LP turbocharger. The system also includes a controller operatively coupled to the first valve assembly and the second valve assembly. The controller is configured to selectively operate the first valve assembly and the second valve assembly based on a change in a load requirement on the engine.
    Type: Grant
    Filed: April 29, 2016
    Date of Patent: August 21, 2018
    Assignee: Caterpillar Inc.
    Inventors: Xinyu Ge, Yongli Qi
  • Patent number: 10054037
    Abstract: A turbocharger system comprises a first relatively small high-pressure (HP) turbocharger and a second relatively large low pressure (LP) turbocharger. The turbine of the LP turbocharger is connected in series downstream of the turbine of the HP turbocharger. A first exhaust bypass flow passage provides a bypass flow path around the HP turbine. A second exhaust bypass flow passage provides a bypass flow path around the LP turbine. A rotary valve is located at a junction of the first and second bypass flow passages and a first exhaust gas flow passage. The rotary valve comprises a valve rotor which is rotatable selectively to permit or block flow to the LP turbine and to permit or block flow to the first and second bypass paths.
    Type: Grant
    Filed: July 31, 2015
    Date of Patent: August 21, 2018
    Assignee: Cummins Turbo Technologies Limited
    Inventors: Lee J. Robinson, Daniel M. Acker
  • Patent number: 10006350
    Abstract: A control apparatus is provided for an internal combustion engine that includes a turbosupercharger, an electric supercharger, and a waste gate valve configured to open and close an exhaust bypass passage. In a single-supercharging range in which an engine torque is less than a torque boundary value, a WGV opening degree is controlled so as to decrease accompanying an increase in the engine torque. Further, in a twin-supercharging range in which the engine torque is equal to or greater than the torque boundary value, the WGV opening degree is controlled so as to increase accompanying an increase in the engine torque, and the electric motor is actuated for supercharging.
    Type: Grant
    Filed: September 9, 2015
    Date of Patent: June 26, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masakazu Tabata, Sho Tomita
  • Patent number: 9976474
    Abstract: A process for monitoring turbocharger operation in a machine is disclosed. The machine includes a power source having an intake manifold for supplying the power source with air and a plurality of turbochargers. Each turbocharger includes an air inlet passageway to receive air, a plurality of pressure sensors arranged within the inlet passageway, a compressor configured to pressurize air, an air outlet passageway to direct pressurized air from the compressor to the intake manifold, and an exhaust turbine operably driven by exhaust gas from the power source and coupled to the compressor by a turbine shaft. The process includes monitoring the differential pressure across the air inlet passageway for each turbocharger, comparing the differential pressures for each turbocharger and indicating an anomaly in turbocharger speed when the differential pressure for one turbocharger exceeds the differential pressure for another turbocharger by a threshold amount.
    Type: Grant
    Filed: April 14, 2016
    Date of Patent: May 22, 2018
    Assignee: Caterpillar Inc.
    Inventors: Scott Thompson, Sravan Karri, Michael Joseph Campagna
  • Patent number: 9938891
    Abstract: A method is provided for operating an internal combustion engine (10) that has at least one cylinder row (11a, 11b) with multiple cylinders (12a, 12b). Each cylinder row (11a, 11b) has a first exhaust-gas turbocharger (13a, 13b) and a second exhaust-gas turbocharger (14a, 14b). The method includes providing charge air for the cylinders (12a, 12b) of the internal combustion engine (10) either exclusively by the first exhaust-gas turbocharger (13a, 13b) of the cylinder row (11a, 11b) of the internal combustion engine (10) or by both the first exhaust-gas turbocharger (13a, 13b) of the cylinder row (11a, 11b) of the internal combustion engine (10) and the second exhaust-gas turbocharger (14a, 14b) of the cylinder row (11a, 11b) of the internal combustion engine (10) in a manner dependent on an operating mode demanded by a driver and/or by a controller for the internal combustion engine (10).
    Type: Grant
    Filed: November 9, 2015
    Date of Patent: April 10, 2018
    Assignee: Dr. Ing. h.c. F. Porsche Aktiengesellschaft
    Inventors: Andre Casal Kulzer, Erwin Rutschmann, Thorben Walder
  • Patent number: 9915193
    Abstract: A method for operating an internal combustion engine (10) that has at least one cylinder row (11a, 11b) with first and second exhaust-gas turbochargers (13a, 13b; 14a, 14b). Charge air is provided by the first exhaust-gas turbocharger (13a, 13b) in single-charger operation, but is provided by the first and second exhaust-gas turbocharger (13a, 13b; 14a, 14b) in two-charger operation. To switch from single-charger to two-charger operation above a load threshold value of the internal combustion engine (10), when a speed of the internal combustion engine (10) reaches or overshoots a threshold value, a charge pressure is increased to build up a torque reserve and a charge pressure reserve and to maintain a driver demand torque. When the charge pressure reaches or overshoots a threshold value, a switch is made from single-charger operation to two-charger operation, and subsequently, the torque reserve and the charge pressure reserve are eliminated.
    Type: Grant
    Filed: November 9, 2015
    Date of Patent: March 13, 2018
    Assignee: DR. ING. H.C.F. PORSCHE AKTIENGESELLSCHAFT
    Inventors: Andre Casal Kulzer, Thorben Walder, Ludwig Theilemann, Michael Reinhardt, Michael Ebert
  • Patent number: 9840964
    Abstract: A supercharging unit for an internal combustion engine has a high-pressure turbine which drives a high-pressure compressor so as to perform a rotational movement about a first axis and through which exhaust gas of the internal combustion engine flows, and having a low-pressure turbine which drives a low-pressure compressor so as to perform a rotational movement about a second axis and through which exhaust gas flows. The high-pressure turbine is arranged rotationally conjointly on a first shaft, and the high-pressure compressor is arranged rotationally conjointly on a second shaft, wherein the first and the second shaft are arranged parallel to one another and are arranged offset with respect to one another, wherein the first and the second shaft are mechanically operatively connected to one another such that the high-pressure compressor can be driven by the high-pressure turbine.
    Type: Grant
    Filed: April 21, 2015
    Date of Patent: December 12, 2017
    Assignee: MTU Friedrichshafen GmbH
    Inventor: Ronald Hegner
  • Patent number: 9822694
    Abstract: Various methods and systems are provided for controlling air flow in a two-stage turbocharger. In one example, an engine method comprises adjusting one or more exhaust gas recirculation valves to maintain a first turbocharger within a first air flow range, and adjusting a turbocharger bypass valve to maintain a second turbocharger within a second air flow range.
    Type: Grant
    Filed: August 9, 2012
    Date of Patent: November 21, 2017
    Assignee: General Electric Company
    Inventors: James Robert Mischler, Daniel Edward Loringer, Neil Xavier Blythe, Luke Henry, Matthew John Malone, Greg Thomas Polkus
  • Patent number: 9752485
    Abstract: An exhaust gas energy recovery system includes a power plant and a volumetric fluid expander. The power plant has an exhaust gas outlet for conveying an exhaust gas stream at a first pressure. The volumetric fluid expander includes a housing and an output shaft. The housing has an inlet and an outlet, and the housing inlet is in fluid communication with the exhaust gas outlet. The volumetric fluid expander generates useful work at the output shaft by expanding the exhaust gas stream to a second pressure lower than the first pressure generally without reducing the volume of the exhaust stream as the exhaust stream moves from the housing inlet to the outlet.
    Type: Grant
    Filed: July 2, 2015
    Date of Patent: September 5, 2017
    Assignee: EATON CORPORATION
    Inventors: William Nicholas Eybergen, Swami Nathan Subramanian
  • Patent number: 9739213
    Abstract: A system and methods are described for a turbocharged engine, comprising powering the engine using a first operating cylinder, supplementing the power using a second switchable cylinder, deactivating the second switchable cylinder responsive to a load below a first threshold, and closing a first shut-off valve downstream of a compressor during the partial deactivation to prevent a first turbocharger from imparting a delivery action into a second compressor during the partial deactivation. Embodiments are further described wherein a bypass line in a second exhaust line further serves as a short-circuit line to prevent the second compressor from imparting a delivery action against the closed first shut-off valve. A variable valve timing is then included to further optimize the combustion process during the partial deactivation.
    Type: Grant
    Filed: March 26, 2015
    Date of Patent: August 22, 2017
    Assignee: Ford Global Technologies, LLC
    Inventors: Joerg Kemmerling, Franz Arnd Sommerhoff, Andreas Kuske, Vanco Smiljanovski, Helmut Matthias Kindl, Werner Willems, Claudia Katharina Herudek, Michael Forsting, Bas Lambertus van den Heuvel, Wilbert Hemink, Claudia Conee, Richard Fritsche
  • Patent number: 9726187
    Abstract: A turbocharger system comprises: a gas input for receiving exhaust gases from an engine; a first turbocharger comprising a first compressor driven by a first turbine, arranged to be driven by received exhaust gases and providing a compressed air output defining a boost pressure a second turbocharger, arranged to be driven by exhaust gases passing through the first turbocharger or exhaust gases received at the gas input and being coupled to an electrical generator operative to provide electrical power, the first turbine not being coupled to an electrical generator; and a controller. A diversion mechanism may be configured to affect the flow of exhaust gases between the gas input and the first turbocharger. The controller may be configured to adjust the operation of the electrical generator independently from the operating mode of the associated engine, to affect the boost pressure.
    Type: Grant
    Filed: December 12, 2011
    Date of Patent: August 8, 2017
    Assignee: Perkins Engines Company Limited
    Inventors: Aaron William Costall, Janette Nicholls
  • Patent number: 9677481
    Abstract: Methods are provided for improving boost pressure control in a boosted engine system. In one example, in response to an operator actuated tip-in of an accelerator pedal, an air bypass around an air compressor supplying air to an air inlet of an engine may be opened for a predetermined time, and after the predetermined time, said air bypass may be increased in response to a ratio of outlet pressure to inlet pressure of said compressor being at or around a hard surge limit. In this way, by increasing the opening of the air bypass, compressor operation may be moved out of a hard/soft surge region.
    Type: Grant
    Filed: June 16, 2015
    Date of Patent: June 13, 2017
    Assignee: Ford Global Technologies, LLC
    Inventors: Hamid-Reza Ossareh, Baitao Xiao, Adam Nathan Banker
  • Patent number: 9599013
    Abstract: Methods and systems are provided for adjusting intake airflow through two parallel induction passages. In response to increased torque demand, intake airflow may be directed through a first induction passage including an exhaust-driven turbocharger compressor and through a second induction passage including an electric compressor. Further, after the turbocharger compressor increases speed, intake airflow may be directed again through the first induction passage to further increase boost.
    Type: Grant
    Filed: April 15, 2013
    Date of Patent: March 21, 2017
    Assignee: Ford Global Technologies, LLC
    Inventor: Chris C. Ahrns