Plural Superchargers Patents (Class 60/612)
  • 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: 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: 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: 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
  • Patent number: 9482149
    Abstract: A method of and apparatus for operating a supercharger for an automotive engine is disclosed. The supercharger has: an input shaft for coupling to an engine crankshaft, and coupled to the rotor of a first electrical machine and a first component of an epicyclic gear train; and an output shaft connected to a compressor and a second component of the epicyclic gear train; wherein the third component of the epicyclic gear train is connected to the rotor of a second electrical machine. The first electrical machine is selectively operable to supply electrical energy to the second electrical machine. The method includes the steps of: (a) calculating a required speed of the second electrical machine that would give rise to a required pressure at an outlet of the compressor; and (b) setting the speed of the second electrical machine to the calculated required speed.
    Type: Grant
    Filed: March 25, 2009
    Date of Patent: November 1, 2016
    Assignees: NexxtDrive Limited, Integral Powertrain Ltd
    Inventor: Luke Barker
  • Patent number: 9464582
    Abstract: Various systems and methods are provided for routing exhaust from an engine. In one example, a system includes a high pressure turbine and a low pressure turbine. The system further includes a first passage for routing exhaust from a first subset of cylinders, bypassing the high pressure turbine, to upstream of the low pressure turbine in an exhaust passage of the engine, and a second passage for routing exhaust from a second, different, subset of cylinders to upstream of the high pressure turbine.
    Type: Grant
    Filed: July 25, 2012
    Date of Patent: October 11, 2016
    Assignee: General Electric Company
    Inventors: Eric David Peters, Chirag Bipinchandra Parikh
  • Patent number: 9453435
    Abstract: An internal combustion engine includes a cylinder block defining a cylinder, a cylinder head, an intake valve, an exhaust valve, and a variable exhaust valve timing mechanism. The engine also includes a turbocharging system configured to pressurize ambient airflow for delivery to the cylinder. The turbocharging system includes a low-flow turbocharger, a high-flow turbocharger, and a flow control device for selectively directing post-combustion gas to the low-flow and high-flow turbochargers. A controller directs the post-combustion gas to the low-flow turbocharger and selects a first predetermined exhaust valve timing when the engine operates below a predetermined speed and above a predetermined load. Alternatively, the controller directs the post-combustion gas to the high-flow turbocharger and selects a second predetermined exhaust valve timing at or above the predetermined engine speed.
    Type: Grant
    Filed: October 7, 2014
    Date of Patent: September 27, 2016
    Assignee: GM Global Technology Operations LLC
    Inventor: Ko-Jen Wu
  • Patent number: 9441558
    Abstract: An object of this invention is, with respect to a torque-demand-control type controller that subjects two kinds of actuators provided upstream and downstream in an intake passage to coordinated operations based on a requested torque for an internal combustion engine, to enable realization of a pulse-like torque change in a torque decreasing direction that is requested, for example, when performing an upshift operation in an electronically controlled automatic transmission. To achieve this object, according to a controller for an internal combustion engine of this invention, when a pulse component in a torque decreasing direction is included in a requested torque, a second requested torque that does not include the pulse component is generated. In this case, a first actuator provided on the downstream side in the intake passage is operated based on the requested torque.
    Type: Grant
    Filed: June 4, 2012
    Date of Patent: September 13, 2016
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Satoshi Yoshizaki, Shinichi Soejima, Satoru Tanaka, Kiyonori Takahashi
  • Patent number: 9404508
    Abstract: The invention relates to a suction housing (1) for an internal combustion engine, especially for arranging between a first (2) and a second (3) compressor of an internal combustion engine, characterized in that the suction housing (1) comprises an inner space (8) defined by a bottom element (9), a first (10) and a second (11) opposing lateral wall elements projecting from the bottom element (9), and a first (12) and a second (13) opposing front wall elements projecting from the bottom element. An open end (14) having an inlet (14a) via which charge air can enter the inner space (8) of the suction housing (1) is formed opposite the bottom element (9), and a web element (17) projecting from the bottom element (9) and arranged between the first (10) and the second (11) lateral wall elements is located in the inner chamber, said web element interconnecting the first (12) and the second (13) front wall elements.
    Type: Grant
    Filed: November 4, 2010
    Date of Patent: August 2, 2016
    Assignee: MTU FRIEDRICHSHAFEN GMBH
    Inventors: Rolf Gunkel, Johannes Hiry, Jörg Andre Reitz
  • Patent number: 9359975
    Abstract: Internal combustion engine system includes an electric supercharger which supercharges sucked air; a throttle valve which adjusts the flow amount of intake air of supercharged air into a cylinder; an EGR path in which a part of exhaust gas exhausted from the exhaust manifold side is recirculated to the intake manifold side; an EGR valve which adjusts the amount of exhaust gas passing through the EGR path; and an internal combustion engine control unit which controls the throttle valve, the EGR valve, and the electric supercharger. This enables to satisfy both performance of the supercharger and fuel consumption of the internal combustion engine without complicating the structure of EGR.
    Type: Grant
    Filed: January 22, 2013
    Date of Patent: June 7, 2016
    Assignee: Mitsubishi Electric Corporation
    Inventors: Hideyuki Tanaka, Yohei Akashi
  • Patent number: 9322345
    Abstract: Various methods for estimating electric actuator temperature during certain operational windows are provided. In one example, a method comprises adjusting an electric motor to position a wastegate at a desired wastegate position, while during selected conditions, deviating from the desired position by at least one full half-turn of the motor and indicating motor temperature based on winding resistance averaged over the full half-turn.
    Type: Grant
    Filed: April 10, 2014
    Date of Patent: April 26, 2016
    Assignee: Ford Global Technologies, LLC
    Inventors: Yan Wang, Baitao Xiao
  • Patent number: 9309803
    Abstract: A control system for a vehicle includes a target boost module and a turbocharger control module. The target boost module determines a target boost for first and second turbochargers based on an engine torque request. Based on a temperature of a compressor of the second turbocharger, the turbocharger control module: selectively opens a first bypass valve that regulates exhaust bypassing a first turbine of the first turbocharger; and selectively closes a cutoff valve that regulates exhaust flow through both a second turbine of the second turbocharger and a second bypass valve. The second bypass valve regulates exhaust bypassing the second turbine of the second turbocharger.
    Type: Grant
    Filed: December 5, 2013
    Date of Patent: April 12, 2016
    Assignee: GM Global Technology Operations LLC
    Inventors: Joshua D. Cowgill, Joel Cowgill
  • Patent number: 9303556
    Abstract: A method for operating a turbocharger arrangement of an internal combustion engine, the turbocharger arrangement comprising a low-pressure and a high-pressure turbocharging stage arranged sequentially, the low-pressure turbo-charging stage comprising a low-pressure turbine with a sensorless low-pressure turbine bypass valve, is provided. The method comprises evaluating at least one sensor signal of the turbocharger arrangement for detecting a failure mode of the sensorless low-pressure turbine bypass valve. In this way, the low-pressure turbine bypass valve may be monitored for degradation without utilizing a position sensor.
    Type: Grant
    Filed: February 17, 2012
    Date of Patent: April 5, 2016
    Assignee: Ford Global Technologies, LLC
    Inventors: Alain Marie Roger Chevalier, Simon Petrovic, Arno Bartsch
  • Patent number: 9303553
    Abstract: A system for controlling an engine having a first turbocharger, a second turbocharger and a cutoff valve that regulates exhaust flow through a turbine of the second turbocharger, the system comprising: a speed determination module that determines a current speed of the first turbocharger, determines a current speed of the second turbocharger, and determines a target speed of the second turbocharger based on the current speed of the first turbocharger; and a boost control module that compares the target speed of the second turbocharger with the current speed of the second turbocharger, and that selectively adjusts a position of a cutoff valve to adjust the current speed of the second turbocharger based on the comparison.
    Type: Grant
    Filed: December 5, 2013
    Date of Patent: April 5, 2016
    Assignee: GM Global Technology Operations LLC
    Inventors: Joshua D. Cowgill, Joel Cowgill
  • Patent number: 9273595
    Abstract: A turbocharger system includes: an engine including a first cylinder head constituting a first bank and a second cylinder head constituting a second bank; a center turbocharger formed between the first bank and the second bank, and connected to exhaust and intake manifolds of the first and second banks; a first turbocharger connected to the other exhaust and intake manifolds of the first bank; and a second turbocharger connected to the other exhaust and intake manifolds of the second bank.
    Type: Grant
    Filed: December 2, 2013
    Date of Patent: March 1, 2016
    Assignee: Hyundai Motor Company
    Inventors: Jonghyuck Kim, Dae Sung Park
  • Patent number: 9228487
    Abstract: A supercharger for an internal combustion engine including a turbocompressor having at least one compressor impeller and a suction side and a pressure side, a flywheel mass for storing drive energy, an auxiliary motor for driving the compressor impeller and the flywheel mass, and a first shut-off element which is arranged on the suction side of the turbocompressor, the region between the first shut-off element and the compressor impeller of the turbocompressor forming a suction-side compressor air space, and the turbocompressor being designed in such a way that, after the first shut-off element is closed, the suction side compressor air space can be substantially evacuated.
    Type: Grant
    Filed: June 7, 2011
    Date of Patent: January 5, 2016
    Assignee: D. Brown Technik AG
    Inventor: Augustin Thalhofer
  • Patent number: 9222404
    Abstract: A cooling assembly having multiple coolers is disclosed. The cooling assembly may include a housing at least partially defining a first chamber and a second chamber adjacent to the first chamber and substantially isolated from the first chamber. The housing may also at least partially define first and second inlets configured to direct air into the first chamber in parallel, and first and second outlets configured to direct air out of the second chamber in parallel. The cooling assembly may also include a first cooler disposed in the first chamber, and a second cooler disposed in the second chamber.
    Type: Grant
    Filed: April 25, 2013
    Date of Patent: December 29, 2015
    Assignee: Electro-Motive Diesel, Inc.
    Inventors: Gary Robert Svihla, Joshua David Schueler, Jeffrey Paul Nowak
  • Patent number: 9194341
    Abstract: A multistage turbocharging system (1) in which the thickness of at least either one of a valve body (51a) that opens and closes a bypass flow passage opening and a washer (51b) that fixes the valve body (51a) to a mounting portion (52) is greater than the minimum width of a flow passage from a valve assembly (51) to a turbine impeller (2d) of the first turbocharger (2).
    Type: Grant
    Filed: December 19, 2013
    Date of Patent: November 24, 2015
    Assignee: IHI CORPORATION
    Inventors: Tomohiro Honma, Kenji Bunno, Fumihiko Fukuhara
  • Patent number: 9187073
    Abstract: A brake vacuum pressure forming device for a motor vehicle may include a vacuum chamber supplying a vacuum pressure boosting a break operating force, an electric supercharger connected to the vacuum chamber to supply vacuum pressure thereto, a first vacuum pressure supply path connecting the electric supercharger and the vacuum chamber, and a vacuum pressure control valve mounted on the first vacuum pressure supply path and opening and closing the first vacuum pressure supply path.
    Type: Grant
    Filed: November 25, 2013
    Date of Patent: November 17, 2015
    Assignee: HYUNDAI MOTOR COMPANY
    Inventors: Yoon Joo Kim, Hyun Jun Lim, Dong Hee Han, Seung Kook Han, Jong Il Park
  • Patent number: 9181867
    Abstract: A carrier housing for a turbocharger arrangement to be fastened at an internal combustion engine includes first, second and third fastening flanges for fastening to turbines of a respective one of a high-pressure turbocharger, a first low-pressure turbocharger, and a second low-pressure turbocharger. The carrier housing is configured such that exhaust can be guided to the turbines of the high-pressure turbocharger, the first low-pressure turbocharger and the second low-pressure turbocharger via a respective one of the first, second and third fastening flanges. The carrier housing includes at least one connection flange by which the fastening flanges are directly in a fluid-guiding connection, with the connection flange being further connected to an exhaust guidance such that exhaust flows from the internal combustion engine through the first and second connection flanges and directly to the carrier housing.
    Type: Grant
    Filed: October 12, 2012
    Date of Patent: November 10, 2015
    Assignee: MTU Friedrichshafen GmbH
    Inventor: Walter Gauss
  • Patent number: 9181857
    Abstract: A method for operating a turbocharger arrangement of an internal combustion engine, the turbocharger arrangement comprising a low-pressure and a high-pressure turbocharging stage arranged sequentially, the high-pressure turbocharging stage comprising a high-pressure compressor with a sensorless compressor bypass valve, comprises evaluating at least one sensor signal of the turbocharger arrangement for detecting a failure mode of the compressor bypass valve.
    Type: Grant
    Filed: February 17, 2012
    Date of Patent: November 10, 2015
    Assignee: Ford Global Technologies, LLC
    Inventors: Simon Petrovic, Alain Marie Roger Chevalier, Arno Bartsch
  • Patent number: 9175602
    Abstract: The invention relates to a V engine, especially a diesel engine, comprising a first cylinder bank and a second cylinder bank, said V engine being designed for two-stage charging by means of a low-pressure exhaust gas turbocharger and a high-pressure exhaust gas turbocharger. The invention is characterized in that the low-pressure exhaust gas turbocharger and the high-pressure exhaust gas turbocharger are respectively arranged on the front of a cylinder bank above a main output element of the V engine.
    Type: Grant
    Filed: November 4, 2010
    Date of Patent: November 3, 2015
    Assignee: MTU Friedrichshafen GmbH
    Inventors: Rolf Gunkel, Felix Henssler, Johannes Hiry, Jörg Andre Reitz, Martin Wiedmann
  • Patent number: 9163586
    Abstract: An exhaust system is disclosed for use with an engine. The exhaust system may have a first exhaust manifold associated with a first plurality of engine cylinders, and a second exhaust manifold associated with a second plurality of engine cylinders. The exhaust system may also have a first exhaust gas recirculation passage extending from the first exhaust manifold to the first plurality of engine cylinders, and a second exhaust gas recirculation passage extending from the first exhaust manifold to the second plurality of engine cylinders. The exhaust system may additionally have a first cooler located in fluid communication with the first exhaust gas recirculation passage, and a second cooler located in fluid communication with the second exhaust gas recirculation passage.
    Type: Grant
    Filed: January 31, 2013
    Date of Patent: October 20, 2015
    Assignee: Electro-Motive Diesel, Inc.
    Inventor: Steven Dallas Johnson
  • Patent number: 9121338
    Abstract: An internal combustion engine includes an engine defining a plurality of cylinders including full-time active cylinders and cylinders capable of being deactivated. A turbocharger system having a high pressure turbocharger in communication with the exhaust passages from the full-time active cylinders and a low pressure turbocharger in communication with the exhaust passages from the cylinders capable of being deactivated. A control valve is provided in communication with the exhaust passages from the full-time active cylinders and being operable in an open position to allow exhaust gases from the full-time active cylinders to pass through the second turbocharger along with the exhaust gasses from the cylinders capable of being deactivated, and being operable in a closed position to direct exhaust gases from the full-time active cylinders to pass through the first turbocharger.
    Type: Grant
    Filed: February 27, 2014
    Date of Patent: September 1, 2015
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Ko-Jen Wu, Alan W. Hayman
  • Patent number: 9074521
    Abstract: A turbocharger system is provided. The turbocharger system may include a first turbocharger including a first turbine in fluidic communication with a first cylinder, a second turbocharger including a second turbine in fluidic communication with a second cylinder, and a shared bypass conduit having a wastegate coupled thereto, the shared bypass conduit is in fluidic communication with an inlet of the first turbine and an inlet of the second turbine.
    Type: Grant
    Filed: March 21, 2012
    Date of Patent: July 7, 2015
    Assignee: Ford Global Technologies, LLC
    Inventor: Stephen George Russ
  • Patent number: 9062615
    Abstract: Various methods and systems are provided for regulating air flow through a two-stage turbocharger. In one embodiment, a method for an engine comprises, in response to a transient engine operating event, adjusting a provided amount of exhaust gas recirculation provided to an intake of the engine based on at least one of desired intake oxygen, one or more turbocharger conditions of a turbocharger, or a magnitude of the transient engine operating event.
    Type: Grant
    Filed: August 15, 2012
    Date of Patent: June 23, 2015
    Assignee: General Electric Company
    Inventors: Greg Thomas Polkus, James Robert Mischler, Luke Henry
  • Patent number: 9057319
    Abstract: The present invention relates to a multi-stage turbocharger arrangement (1), having a high-pressure turbocharger (20) which has a turbine housing (26A), a bearing housing (27A), a compressor housing (28A); and having a low-pressure turbocharger (21) which has a turbine housing (26B), a bearing housing (27B), a compressor housing (28B); wherein the turbine housings (26A, 26B) are provided with an integrated inner shell (23) for conducting exhaust gas.
    Type: Grant
    Filed: June 18, 2010
    Date of Patent: June 16, 2015
    Assignee: BorgWarner Inc.
    Inventors: Volker Joergl, Timm Kiener, Thomas Kritzinger
  • Patent number: 9051903
    Abstract: An EGR system is disclosed for reducing NOx emissions and that may eliminate the need for a SCR system. The disclosed EGR system includes dual valves, including a hot EGR valve disposed in the exhaust manifold and a cold EGR valve disposed upstream of the intake manifold. A VGT turbine with adjustable vanes may also be employed with a low pressure turbine. Intake air may proceed through both a high pressure compressor as well as a low pressure compressor and the high pressure compressor may be substantially bypassed by way of a bypass valve disposed between the low pressure compressor and the air intake. The EGR system may be controlled by adjusting the positions of the valves and VGT turbine vanes.
    Type: Grant
    Filed: August 24, 2012
    Date of Patent: June 9, 2015
    Assignee: Caterpillar Inc.
    Inventor: Matthew Thomas Wolk
  • Patent number: 9051871
    Abstract: An internal combustion engine defines a plurality of cylinders including full-time active cylinders and cylinders capable of being deactivated. A turbocharger having a twin scroll turbine includes a first turbine scroll in communication with the exhaust passages from the full-time active cylinders and a second turbine scroll in communication with the exhaust passages from the cylinders capable of being deactivated. A scroll control valve is provided in communication with the exhaust passages from the cylinders capable of being deactivated and being operable in an open position to allow exhaust gases from the cylinders capable of being deactivated to pass through the second turbine scroll, and being operable in a closed position to direct exhaust gases from the plurality of second cylinders capable of being deactivated to pass through the first turbine scroll.
    Type: Grant
    Filed: February 27, 2014
    Date of Patent: June 9, 2015
    Assignee: GM Global Technology Operations LLC
    Inventors: Ko-Jen Wu, Jason C. Melecosky, Darrel J. Walter
  • Patent number: 9046104
    Abstract: A turbocharger system includes: a high-pressure stage turbocharger including a high-pressure stage turbine disposed on an exhaust passage and driven by exhaust, and a high-pressure stage compressor disposed on an intake passage and driven by a rotational torque of the high-pressure stage turbine; and a low-pressure stage turbocharger including a low-pressure stage turbine disposed on the exhaust passage of a more downstream side than the high-pressure stage turbine and driven by exhaust, and a low-pressure stage compressor disposed on the intake passage of a more upstream side than the high-pressure stage compressor and driven by a rotational torque of the low-pressure stage turbine, wherein the high-pressure stage turbocharger includes an electric motor that assists a drive force of the high-pressure stage compressor.
    Type: Grant
    Filed: October 26, 2011
    Date of Patent: June 2, 2015
    Assignee: ISUZU MOTORS LIMITED
    Inventors: Isao Kitsukawa, Tomohiro Sugano, Yoshiyuki Abe, Haruyo Kimura, Akira Iijima, Naoki Ishibashi, Syougo Sakashita
  • Patent number: 9038384
    Abstract: A first supercharger and a second supercharger are disposed in series in intake and exhaust passages. In a B region in which both the supercharging effects of the first and second superchargers are utilized, the opening of an exhaust control valve disposed in a passage for bypassing the turbine of the first supercharger is set to an intermediate degree, and the opening of an intake control valve disposed in a passage for bypassing the compressor of the first supercharger is set to the minimum. In a C region in which the supercharging effect of only the second supercharger is utilized, both the openings of the exhaust control valve and the intake control valve are set to the maximum. When the control region shifts from B region to C region as result of acceleration of the vehicle, the fuel injection amount is reduced over a predetermined period immediately after the shift.
    Type: Grant
    Filed: October 26, 2009
    Date of Patent: May 26, 2015
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tetsuji Tomita, Taku Ibuki, Yoshihisa Hirosawa
  • Publication number: 20150128589
    Abstract: A turbocharger system may include an air storage tank provided in a vehicle so as to supply compressed air to an intake manifold of the vehicle provided with a turbocharger, a compressor connected to the air storage tank to supply compressed air to the air storage tank, and a compressed air guidance device connected to the air storage tank and provided in the intake manifold to guide mixing of the compressed air of the air storage tank with introduced atmospheric air.
    Type: Application
    Filed: March 27, 2014
    Publication date: May 14, 2015
    Applicant: Hyundai Motor Company
    Inventor: Seung-Gi KIM
  • 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
  • Patent number: 9016059
    Abstract: A charge air system for a combustion engine and an operation method are provided. The charge air system includes a first turbocharger stage for intake of combustion air supplied to the engine from a first pressure to a second pressure, a second turbocharger stage for compression of the compressed air to a third pressure, a first heat exchanger being arranged between the first and the second turbocharger stage for cooling the compressed air, a first intake air bypass for modulating the flow of the air through the first heat exchanger and/or a first mass flow control unit for controlling the flow of a cooling medium supplied to the first heat exchanger.
    Type: Grant
    Filed: June 26, 2007
    Date of Patent: April 28, 2015
    Assignee: Volvo Lastvagnar AB
    Inventors: Peteris Lauberts, Bert-Inge Bertilsson
  • Patent number: 9010117
    Abstract: A turbocharged internal combustion engine system includes at least one high pressure turbocharger system and at least one low pressure turbocharger system. An air-to-air intercooler is connected between the low pressure compressor of the low pressure turbocharger system and the high pressure compressor of the high pressure turbocharger system. An air-to-water aftercooler is connected to the intake system between the high pressure compressors and the intakes of the cylinders of the internal combustion engine.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: April 21, 2015
    Assignee: Cummins Inc.
    Inventor: David P. Genter