Having Condition Responsive Valve Controlling Engine Exhaust Flow Patents (Class 60/602)
  • Patent number: 11891924
    Abstract: A rocker arm mechanism includes a rocker arm shaft, a rocker arm, a valve clearance adjuster, a valve train, and a control valve. The rocker arm is rotatably disposed on the rocker arm shaft. The valve train includes a valve bridge. The rocker arm is provided with a plunger chamber. The valve clearance adjuster includes a hydraulic tappet slidably disposed in the plunger chamber. The plunger chamber is supplied with oil through an oil supply passage. The control valve is configured to open or close the oil supply passage. When the control valve opens the oil supply passage, the hydraulic tappet can abut against the valve bridge and eliminate the clearance between the valve bridge and the hydraulic tappet.
    Type: Grant
    Filed: December 7, 2020
    Date of Patent: February 6, 2024
    Assignee: WEICHAI POWER CO., LTD.
    Inventors: Shenggang Guo, Fei Wang, Cheng Xu
  • Patent number: 11885258
    Abstract: The description relates to a drive assembly with an internal combustion engine, a turbocharger designed to supercharge said internal combustion engine and a catalysing system; the drive assembly comprises: a first wastegate duct interposed between the turbine and the catalysing system and a first wastegate valve movable between a first and a second position; the drive assembly comprises a second duct interposed between said exhaust duct and said catalysing system; and a second bypass valve movable between a third position, in which it fluidly connects said exhaust duct and the catalysing system so as to covey said mixture along the second duct bypassing the entire turbine, thus heating said catalysing system, and a fourth position, in which it fluidly isolates said second duct from said exhaust duct.
    Type: Grant
    Filed: April 10, 2023
    Date of Patent: January 30, 2024
    Assignee: FERRARI S.p.A.
    Inventor: Luigi Mosciaro
  • Patent number: 11879389
    Abstract: An exhaust turbine includes a turbine wheel having a plurality of rotor blades, an exhaust outlet where the exhaust outlet is arranged downstream of the rotor blades and is delimited radial to the outside by an axial turbine diffusor. An exhaust mass flow can be output in an axial flow direction by the exhaust outlet duct and the axial turbine diffusor opens downstream, radially to the outside at a non-constant diffusor-opening angle, such that at a first diffusor-opening angle deviates from a second diffusor-opening angle by at least 1°. The exhaust turbine further includes a waste gate duct, the outlet region of which opens into the diffusor or directly downstream of the diffusor into the exhaust outlet duct. The waste gate duct is designed to generate a substantially axial flow direction of a waste gate mass flow at the outlet region of the waste gate duct.
    Type: Grant
    Filed: September 9, 2020
    Date of Patent: January 23, 2024
    Assignee: Turbo Systems Switzerland Ltd.
    Inventors: Christoph Mathey, Stephan Senn
  • Patent number: 11859525
    Abstract: A turbocharger manifold is disclosed. In one embodiment, the manifold has a first exhaust conduit, a second exhaust conduit, and a valve. The first exhaust conduit has a first exhaust inlet and a first turbocharger outlet. The second exhaust conduit has a second exhaust inlet and a second turbocharger outlet. The second exhaust inlet is connected to the first exhaust conduit. The valve has an open position and a closed position and controls exhaust gas access from the first exhaust conduit to the second exhaust conduit.
    Type: Grant
    Filed: August 1, 2020
    Date of Patent: January 2, 2024
    Inventor: Andrew Hlava
  • Patent number: 11828239
    Abstract: A method and system for controlling a wastegate comprises determining a boost pressure target, measuring a boost pressure, determining a boost pressure error from the measured boost pressure and the boost pressure target, determining a wastegate position change based on boost pressure error, and changing the wastegate position corresponding to the wastegate position change.
    Type: Grant
    Filed: January 9, 2021
    Date of Patent: November 28, 2023
    Assignee: Polaris Industries Inc.
    Inventors: Dallas J. Blake, James H. Buchwitz, Lucas R. Salfer, Darren J. Hedlund, Reed A. Hanson, Eric L. Gausen
  • Patent number: 11821441
    Abstract: Various systems are provided for a single turbocharger case housing each of turbine of a turbocharger and a bearing of the turbocharger. In one example, an apparatus for an engine includes an integrated, monolithic turbocharger case that houses each of a turbine and a bearing of a turbocharger and a nozzle ring integrated into the turbocharger case between the turbine and the bearing. In further examples of the system, portions of the turbocharger case are formed of a lattice structure.
    Type: Grant
    Filed: July 23, 2019
    Date of Patent: November 21, 2023
    Assignee: TRANSPORTATION IP HOLDINGS, LLC
    Inventors: Louis Kobielski, Baris Uygun, Adam Felton
  • Patent number: 11821374
    Abstract: An internal-combustion engine includes a variable compression ratio mechanism for changing a mechanical compression ratio, and a variable valve timing mechanism for changing the valve timing of an intake valve. When acceleration is demanded, a target compression ratio is set to a lower compression ratio than the target value in a normal condition, and the valve timing is set to the advance angle side. Since the allowable combustion pressure decreases in a prescribed intermediate compression ratio region, if an actual compression ratio exists in the prescribed intermediate compression ratio region in the course of a compression ratio change accompanying acceleration, the variable compression ratio mechanism restricts the intake pressure by increasing a degree of opening of a wastegate valve or reducing a degree of opening of a throttle valve, for example.
    Type: Grant
    Filed: June 28, 2017
    Date of Patent: November 21, 2023
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Kenji Suzuki, Ryouichi Ootaki, Yukiyo Yamada, Masashi Ono, Hiroshi Takada
  • Patent number: 11788461
    Abstract: Systems and methods for controlling turbocharger operation by maintaining a virtual turbocharger speed calculation using airflow parameters in the context of an engine. An example uses a turbocharger speed estimator, an energy observer, and an energy controller. Optimization of turbocharger speed control, including avoidance of overspeed, while reducing wastegate actuation, can be achieved using a predictive control algorithm.
    Type: Grant
    Filed: August 3, 2021
    Date of Patent: October 17, 2023
    Assignee: Garrett Transportation I Inc.
    Inventor: Lubomir Baramov
  • Patent number: 11788539
    Abstract: A turbocharger turbine wastegate assembly can include a bushing with a stepped bore that includes an axial face; a wastegate where a shaft includes an end portion, a first axial face, a journal portion, a second axial face and a shoulder portion, where the first axial face is defined at least in part by an end portion diameter and a journal portion diameter, and where the second axial face is defined at least in part by the journal portion diameter and a shoulder portion diameter; a mesh spacer disposed radially about an axial length of the end portion of the shaft; and a shim disposed radially about an axial length of the end portion of the shaft between the axial face of the stepped bore of the bushing and the first axial face of the shaft.
    Type: Grant
    Filed: February 3, 2022
    Date of Patent: October 17, 2023
    Assignee: Garrett Transportation I Inc.
    Inventors: Filip Tomanec, Josef Prokop, Zdenek Mach, Jan Marcell
  • Patent number: 11781494
    Abstract: A system and method of controlling a turbocharged engine system includes receiving a boost mode selection signal and controlling the turbocharged engine system in response to the boost mode selection signal.
    Type: Grant
    Filed: August 19, 2022
    Date of Patent: October 10, 2023
    Assignee: Polaris Industries Inc.
    Inventors: James H. Buchwitz, Lucas R. Salfer, James A. Barczak, Darren J. Hedlund, Reed A. Hanson, Derek Zimney, Chad A. Dale, Daniel E. Erickson, Jon P. Brandt, Alexander M. Hetteen
  • Patent number: 11746715
    Abstract: The invention relates to a method to control an internal combustion engine. The internal combustion engine comprises a cylinder, an exhaust guide arranged to guide an exhaust flow from the cylinder through a turbine, and a bypass guide arranged to bypass a bypass flow from the cylinder past the turbine. The method comprises the step to determine a value of at least one engine operation parameter. The method is characterized by the step to determine a target value of an exhaust performance parameter depending on the determined engine operation parameter value. Further, the method comprises, depending on the determined target exhaust performance parameter value, the step to control the exhaust flow through the exhaust guide and the step to control the bypass flow through the bypass guide.
    Type: Grant
    Filed: October 1, 2018
    Date of Patent: September 5, 2023
    Assignee: VOLVO TRUCK CORPORATION
    Inventors: Anders Mohlin, Malin Ehleskog
  • Patent number: 11739684
    Abstract: An engine including an exhaust bypass valve and an intake bypass valve. The exhaust bypass valve is disposed in an exhaust bypass channel connecting an outlet of an exhaust manifold and an exhaust outlet of a turbocharger to each other. The intake bypass valve is disposed in an intake bypass channel connecting an inlet of an intake manifold and an inlet of the turbocharger. An intake pressure sensor detects a pressure of the intake manifold. If an instruction value indicating an upper limit or a lower limit of the valve opening degree of the intake bypass valve is continuously output for a predetermined time or more, an engine control device determines that an abnormality occurs in at least one of the exhaust bypass valve and the intake bypass valve.
    Type: Grant
    Filed: October 6, 2022
    Date of Patent: August 29, 2023
    Assignee: Yanmar Power Technology Co., Ltd.
    Inventors: Taishi Murakami, Masayoshi Doui
  • Patent number: 11739683
    Abstract: A method is disclosed for controlling a compression release brake mechanism in a combustion engine. The method comprises: determining a desired exhaust manifold gas pressure level; continuously monitoring a set of control parameters, including at least two of cylinder pressure, exhaust manifold pressure, turbine speed and turbine expansion ratio; controlling a brake pressure valve and a variable turbine geometry by said control parameters, to drive one of the control parameters to a set first maximum level; and, while maintaining the first of the set of control parameters at the set first maximum level, controlling an exhaust gas recirculation valve by said control parameters in a closed loop to allow exhaust gas to recirculate towards an air inlet system while driving a second of the set of control parameters to a set second maximum level.
    Type: Grant
    Filed: June 28, 2022
    Date of Patent: August 29, 2023
    Assignee: DAF Trucks N.V.
    Inventor: Niek Laurentius Adrianus Hermans
  • Patent number: 11698013
    Abstract: An engine controller includes processing circuitry configured to execute catalyst accelerated activation control by performing a first process that maintains an open degree of a wastegate valve at a specified first open degree and then performing a second process that changes the open degree of the wastegate valve to an open degree that differs from the first open degree.
    Type: Grant
    Filed: December 14, 2022
    Date of Patent: July 11, 2023
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Akihiro Katayama
  • Patent number: 11680517
    Abstract: A method and a turbine-compressor assembly of a system having a turbine-compressor device fluidly coupled with a heat source, a compressor, and a turbine via plural valves. A power device may be coupled with the turbine-compressor device. A controller may control operation of the plural valves to control movement of fluids within the assembly to selectively switch between the turbine-compressor device operating in one of plural modes. In a turbine mode of operation, the turbine-compressor device may generate electrical power and direct the electrical power to the power device. In a compressor mode of operation, the turbine-compressor device may receive electrical power from the power device to consume the electrical power.
    Type: Grant
    Filed: June 9, 2022
    Date of Patent: June 20, 2023
    Assignee: Transportation IP Holdings, LLC
    Inventors: Neil Xavier Blythe, Pradheepram Ottikkutti, Rogier Giepman, Michael Majewski, Kevin McElhaney, Najeeb Kuzhiyil, Adam Edgar Klingbeil, Adam C. Felton, Christopher Joseph Homison
  • Patent number: 11649752
    Abstract: The present disclosure relates to a gas engine heat pump including: an engine which burns a mixed air of air and fuel; a first charger which compresses the mixed air and supplies to the engine; a first exhaust flow path which is connected to the engine, and through which exhaust gas discharged from the engine flows; and a second charger which is driven by the exhaust gas branched from the first exhaust flow path to a second exhaust flow path, and compresses the exhaust gas discharged from the engine and supplies the compressed exhaust gas to the engine, thereby reducing the emission of nitrogen oxide by recirculating the exhaust gas without additional power consumption.
    Type: Grant
    Filed: August 18, 2021
    Date of Patent: May 16, 2023
    Assignee: LG ELECTRONICS INC.
    Inventors: Heejoong Jang, Hojong Jeong
  • Patent number: 11634998
    Abstract: A turbocharger includes a turbine housing including an interior surface defining a turbine housing interior. The interior surface extends between a turbine housing inlet and a turbine housing outlet. The turbine housing also includes a wastegate duct disposed downstream of the turbine housing inlet and defining a wastegate channel. The turbocharger also includes a valve seat disposed about the wastegate channel, with the valve seat having a valve seat plane extending along the valve seat. The turbocharger further includes a wastegate assembly including a valve element engageable with the valve seat. The wastegate channel extends along a channel axis, and the channel axis is obliquely oriented with respect to the valve seat plane such that the wastegate channel and the valve element are configured to direct exhaust gas to a catalytic converter.
    Type: Grant
    Filed: October 4, 2019
    Date of Patent: April 25, 2023
    Assignee: BorgWarner Inc.
    Inventors: Matthew Brian Cooley, Alexander George Milburn, Kai Tanaka
  • Patent number: 11635035
    Abstract: Engine controllers and control schemes are provided for managing engine state transitions requiring increased compressor pressure ratios in turbocharged engines. In some circumstances, turbo lag can be mitigated by initially transitioning the engine to an intermediate engine state that directly or indirectly increases airflow through the engine and turbocharger relative to what would be possible if the engine were immediately commanded to operate at the target engine state. After reaching a point where the desired torque is actually generated at the intermediate engine state, the operational settings are gradually reduced to the target effective firing density while increasing the operational compressor pressure ratio to the target compressor ratio.
    Type: Grant
    Filed: January 5, 2022
    Date of Patent: April 25, 2023
    Assignee: Tula Technology, Inc.
    Inventors: Elliott A. Ortiz-Soto, Shahaboddin Owlia
  • Patent number: 11629655
    Abstract: An engine system provided to a vehicle having an accelerator pedal is provided. When an engine operation range is determined to shift to a first range (where an electromagnetic clutch is disengaged) from a second range (where the clutch is engaged) after an opening of the accelerator pedal increases at a rate below a given reference rate, the clutch is switched from ON to OFF after a given basic stand-by period passes from the shift. When the engine operation range is determined to shift from the second range to the first range after the accelerator pedal opening increases at the given reference rate or above, the clutch is switched from ON to OFF after a given acceleration stand-by period (longer than the basic stand-by period by a given added period) passes from the shift.
    Type: Grant
    Filed: November 9, 2021
    Date of Patent: April 18, 2023
    Assignee: Mazda Motor Corporation
    Inventors: Hironori Kokubu, Kenji Sasaki, Atsushi Yagi, Tomokuni Kusunoki
  • Patent number: 11619140
    Abstract: A first turboexpander generator is configured to decrease a temperature or pressure of a process stream flowing through the first turboexpander generator by generating electrical power from the process stream. A second turboexpander generator is configured to decrease a temperature or pressure of a process stream flowing through the second turboexpander generator by generating electrical power from the process stream. The second turboexpander generator is downstream of and receives a flow output from the first turboexpander generator. The first turboexpander generator and the second turboexpander generator each include the following features. An electric stator surrounds an electric rotor. An annulus defined by the electric rotor and the electric stator is configured to receive a process fluid flow. Magnetic bearings carry the rotor within the stator. A housing encloses the rotor and stator. The housing is hermetically sealed between an inlet and an outlet of each turboexpander generator.
    Type: Grant
    Filed: May 4, 2022
    Date of Patent: April 4, 2023
    Assignee: Sapphire Technologies, Inc.
    Inventors: Jeffrey Earl, Freddie Sarhan, Jeremy Liu
  • Patent number: 11614028
    Abstract: A turbine wheel for a turbine of a turbocharger. The turbine wheel includes a plurality of turbine blades distributed evenly about the axis of rotation; and a plurality of inter-blade portions distributed evenly about the axis of rotation. Each of the inter-blade portions is disposed between two blades and each of the blades is disposed between two inter-blade portions, the inter-blade portions and the turbine blades being integrally formed. A cross-section, taken along a plane normal to the axis of rotation, of a surface of each inter-blade portion of the plurality of inter-blade portions being described by a smooth curve extending between the two turbines blades of the plurality of turbine blades between which the inter-blade portion is disposed. In some cases, the smooth curve of each inter-blade portion is described by a curve fitted to a biomimicry design form extending between the first blade and the second blade.
    Type: Grant
    Filed: December 16, 2021
    Date of Patent: March 28, 2023
    Assignee: BRP-ROTAX GMBH & CO. KG
    Inventor: Markus Wolfsgruber
  • Patent number: 11608774
    Abstract: The present invention relates to a valve arrangement (100) for a multi-channel turbine (10), having a housing section (300) with a first volute (320), with a second volute (340) and with a connecting region (360) between the first volute (320) and the second volute (340), and having a valve body (110) for closing off the connecting region (360) in a closed position of the valve body (110). A wall region (370) of the housing section (300), which wall region is arranged in the connecting region (360) and is situated opposite the valve body (110) in the closed position, is configured to be optimized in terms of flow to increase, during operation of the valve arrangement (100), a rate of flow transfer of exhaust gas between the first volute (320) and the second volute (340) in an open position of the valve body (110).
    Type: Grant
    Filed: June 25, 2021
    Date of Patent: March 21, 2023
    Assignee: BorgWarner Inc.
    Inventors: Ivan Injac, Ahmet Coksen
  • Patent number: 11585301
    Abstract: A dual turbocharger system for an engine is provided. In one example, the dual turbocharger system may include two variable geometry turbines (VGTs), with each turbine being of the same size and operating in parallel, and with each compressor of the turbocharger operating in series, the first compressor of the first turbocharger being larger than the second compressor of the second turbocharger.
    Type: Grant
    Filed: December 14, 2021
    Date of Patent: February 21, 2023
    Assignee: Ford Global Technologies, LLC
    Inventors: Brad Alan Boyer, Keith Plagens, Gregory McConville, Michael Shelby
  • Patent number: 11560831
    Abstract: An exhaust gas conduction system for a gasoline engine comprises an exhaust gas line and an intake line which can be connected to an intake manifold, a charge air compressor arranged in the intake line, and a turbine arranged in the exhaust gas line. The exhaust gas line has at least one bypass line with a bypass throttle valve. At least one exhaust gas recirculation line with an EGR throttle valve is provided. At least one particle filter is arranged in the bypass line and an exhaust gas valve is provided in the exhaust gas line.
    Type: Grant
    Filed: December 15, 2021
    Date of Patent: January 24, 2023
    Assignee: Tenneco GmbH
    Inventors: Philipp Kreutziger, Michael Fischer, Jaroslaw Kierat
  • Patent number: 11560832
    Abstract: A wastegate valve for a bypass path for a turbocharger in an internal combustion engine, the wastegate valve comprises a valve seat defining a plane which is non-orthogonal to the principal flow axis for gases flowing along the bypass path and a valve member pivotable from an open position to a closed position, wherein in the closed position the valve member is seated on the valve seat, and in a fully open position the valve member is positioned to direct gases exiting the bypass path onto a leading face of a catalytic converter monolith for heating the monolith.
    Type: Grant
    Filed: December 28, 2020
    Date of Patent: January 24, 2023
    Assignee: JAGUAR LAND ROVER LIMITED
    Inventors: Matthew Albrecht, Guido Schlarb
  • Patent number: 11541869
    Abstract: There are provided a controller and a control method for a hybrid vehicle including an engine with a supercharger serving as a drive power source for travel, a rotary machine serving as a drive power source for travel, and a power storage device configured to transmit and receive electric power to and from the rotary machine. The controller determines whether an operation of the supercharger is limited, compensates for a torque shortage of the engine due to limitation of the operation of the supercharger by a torque of the rotary machine when it is determined that the operation of the supercharger is limited, and curbs a decrease in an amount of electric power stored in the power storage device more when it is determined that the operation of the supercharger is limited than when it is determined that the operation of the supercharger is not limited.
    Type: Grant
    Filed: July 30, 2020
    Date of Patent: January 3, 2023
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tooru Matsubara, Atsushi Tabata, Koichi Okuda, Yasutaka Tsuchida, Kenta Kumazaki, Tatsuya Imamura
  • Patent number: 11542877
    Abstract: Systems and methods for managing excessive intake flow path pressure and counter flow are implemented to support enhanced engine braking applications, such as 2-stroke or 1.5-stroke engine braking implementations where the intake flow path may be exposed to excessive transient pressures in the combustion chamber during activation or deactivation of an engine brake. Intake throttle, exhaust gas recirculation (EGR) valve, intake manifold blow-off valve, compressor bypass valve, exhaust throttle, turbocharger geometry or turbocharger waste gate may be controlled to effectuate counter flow management separately or in combination. Excessive transient conditions may also be prevented or managed by sequential valve motion in which brake motion activation occurs first and then exhaust valve main event deactivation occurs second. Delay between brake activation and main event deactivation may be facilitated using mechanical and/or hydraulic implements as well as electronically.
    Type: Grant
    Filed: August 3, 2018
    Date of Patent: January 3, 2023
    Assignee: JACOBS VEHICLE SYSTEMS, INC.
    Inventors: Ryan Lilly, Matei Alexandru, Justin D. Baltrucki
  • Patent number: 11536175
    Abstract: An engine device including an exhaust gas purification device above cylinder head through a support pedestal. The support pedestal has a flat portion on which the exhaust gas purification device is mounted, and a plurality of legs which protrude downward from the flat portion and are fixed to the cylinder head. The flat portion and the leg portions are formed integrally. Portions between the legs are each formed in an arch-shape.
    Type: Grant
    Filed: October 15, 2020
    Date of Patent: December 27, 2022
    Assignee: Yanmar Power Technology Co., Ltd.
    Inventors: Yu Matsui, Naotoshi Furukawa
  • Patent number: 11529960
    Abstract: Provided is a method for detecting a driver's abnormalities based on a CAN (Controller Area Network) bus network communicating with an ECU (Electronic Control Unit) of a vehicle. The method may include: acquiring a CAN bus signal related to an operation of the vehicle from the CAN bus network; extracting a detection vector from the CAN bus signal using an auto encoder; and detecting a driver's abnormality based on the detection vector.
    Type: Grant
    Filed: November 20, 2019
    Date of Patent: December 20, 2022
    Assignees: PENTA SECURITY SYSTEMS INC., AUTOCRYPT CO., LTD.
    Inventors: Seok Woo Lee, Duk Soo Kim, Eui Seok Kim, Sang Gyoo Sim, Seung Young Park
  • Patent number: 11525395
    Abstract: As seen in a section parallel to a central axis of a shaft and including the center of gravity of a valve surface, with respect to the center of gravity, an end of the valve surface on the side of a first shaft direction is located on the side of a first direction in a direction orthogonal to the central axis of the shaft. As seen in a section orthogonal to the central axis of the shaft and including the center of gravity when the central axis of the shaft and a central axis of a through-hole coincide with each other, with respect to the center of gravity, an end of the valve surface on the side of a second direction in a direction along the valve seat surface is located on the side of the first direction in a direction orthogonal to the valve seat surface.
    Type: Grant
    Filed: August 31, 2021
    Date of Patent: December 13, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takeshi Murase, Masaaki Matsuda
  • Patent number: 11514730
    Abstract: In a hybrid vehicle, each of an engine and an MG1 is mechanically coupled to a drive wheel with a planetary gear being interposed. The planetary gear and an MG2 are configured such that motive power output from the planetary gear and motive power output from the MG2 are transmitted to the drive wheel as being combined. A controller makes WGV diagnosis for diagnosing whether or not a waste gate valve is normally controllable by issuing an instruction to a WGV actuator while the controller stops combustion in the engine and controls the MG1 and the MG2 in coordination to perform motoring of the engine during traveling of the hybrid vehicle.
    Type: Grant
    Filed: February 21, 2020
    Date of Patent: November 29, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Koichi Yonezawa, Satoshi Yoshizaki, Osamu Maeda, Daigo Ando, Yoshikazu Asami, Kenji Itagaki, Shunsuke Oyama, Koichiro Muta
  • Patent number: 11492916
    Abstract: A turbine includes: an inner diameter side exhaust flow path; an outer diameter side exhaust flow path having a flow path cross-sectional area smaller than a flow path cross-sectional area of the inner diameter side exhaust flow path; an inner diameter side bypass flow path connecting the inner diameter side exhaust flow path and a discharge flow path; and an outer diameter side bypass flow path connecting the outer diameter side exhaust flow path and the discharge flow path, the outer diameter side bypass flow path having a flow path cross-sectional area larger than a flow path cross-sectional area of the inner diameter side bypass flow path.
    Type: Grant
    Filed: August 17, 2021
    Date of Patent: November 8, 2022
    Assignee: IHI Corporation
    Inventors: Isao Morita, Wataru Sato
  • Patent number: 11492965
    Abstract: A turbocharger includes a three-way rotary turbine bypass valve (TBV) operable to selectively supply exhaust gases to a turbine feed passage leading to a turbine wheel, and/or to a bypass passage that bypasses the turbine wheel. The TBV is structured and arranged to close the bypass outlet of the valve when the turbine outlet is fully open, to partially open the bypass passage while the turbine outlet remains fully open, to fully open the bypass passage when the turbine outlet is partially closed, and to fully open the bypass passage when the turbine passage is fully closed. The TBV turns the exhaust gas flows through acute angles between inlet and outlets, mitigating pressure losses through the valve. Leakage to bypass is minimized by a labyrinth seal formed when the valve member closes the bypass outlet.
    Type: Grant
    Filed: August 31, 2021
    Date of Patent: November 8, 2022
    Assignee: Garrett Transportation I Inc.
    Inventors: Jaroslav Krejci, Jan Klement, Miroslav Zatko
  • Patent number: 11486297
    Abstract: An exhaust manifold for use with an internal combustion engine including a body, one or more fluid passageways defined by the body, and a valve in fluid communication with at least one of the one or more fluid passageways. The valve of the exhaust manifold being adjustable between an open configuration and a closed configuration. The exhaust manifold also includes an actuator in operable communication with the valve and configured to adjust the valve between the open and closed configurations, and a heat shield at least partially positioned between the actuator and the one or more fluid passageways.
    Type: Grant
    Filed: July 26, 2021
    Date of Patent: November 1, 2022
    Assignee: DEERE & COMPANY
    Inventor: Eric J. Haaland
  • Patent number: 11486264
    Abstract: A method for controlling a speed of a turbocharger that is in operative connection with a compressor, the steps including: provision of a setpoint for the speed of the turbocharger on the basis of a model-based precontrol for a calculation of a desired boost pressure ahead of the turbocharger; determination of an actual value for the speed of the turbocharger; control of an actuator of the turbocharger in order to compensate for the difference between the desired value and the actual value for the speed of the turbocharger. A main signal and a subsidiary signal are provided during the determination of the actual value for the speed of the turbocharger, wherein the main signal and the subsidiary signal are combined in order to validate the actual value for the speed of the turbocharger.
    Type: Grant
    Filed: May 13, 2021
    Date of Patent: November 1, 2022
    Assignee: Volkswagen Aktiengesellschaft
    Inventors: Sven Mueller, Tobias Noesselt, Mauro Calabria
  • Patent number: 11459941
    Abstract: An engine control device performs air-fuel ratio control of an engine through a main air-fuel ratio feedback process based on an output of a front air-fuel ratio sensor, a sub air-fuel ratio feedback process of alternately switching a target air-fuel ratio between a lean-side target air-fuel ratio and a rich-side target air-fuel ratio based on an output from a rear air-fuel ratio sensor. The engine control device performs a limiting process of setting an upper limit of a control range of an opening level of a waste gate valve to be less when a combustion operation of the engine continues to be performed for a long time without being stopped by fuel cutoff than otherwise.
    Type: Grant
    Filed: February 11, 2022
    Date of Patent: October 4, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Shinji Yoshioka, Shinichi Nakagoshi
  • Patent number: 11441478
    Abstract: A turbine comprises a turbine housing defining a turbine inlet upstream of a turbine wheel and a turbine outlet downstream of the turbine wheel; and a wastegate valve assembly comprising at least one movable valve member mounted on a movable support member within a wastegate chamber which communicates with the turbine inlet upstream of the turbine, and has one or more chamber outlets which communicate with an outlet of the turbine. The valve member is permitted to articulate slightly about the support member, with the amount of articulation in respective directions being limited by collisions between a respective limit point on a limit area on a rear surface of a sealing portion of the valve member and a respective limit point on limit area on a front surface of the support member.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: September 13, 2022
    Assignee: CUMMINS LTD.
    Inventor: Matthew J. Purdey
  • Patent number: 11434813
    Abstract: The invention relates to a valve assembly (100) for a multi-scroll turbine (10) for controlling an overflow of exhaust gases between a first spiral (36) and a second spiral (38) and for controlling a bypass opening (50). The valve assembly 100 comprises a lever (110) and a valve closing element (120) which is operatively connected to the lever (110). Furthermore, the valve assembly (100) comprises a spring element (130) which is designed to pre-bias the valve closing element (120) the against lever (110).
    Type: Grant
    Filed: February 22, 2019
    Date of Patent: September 6, 2022
    Assignee: BorgWarner Inc.
    Inventors: Stefan Ebert, Ondrej Cempirek, Ivan Injac, Patrick Witteck, Jason Robert Walkingshaw
  • Patent number: 11434838
    Abstract: According to the invention, a method for air path control of a combustion engine is provided, comprising an EGR valve and a VGT turbine.
    Type: Grant
    Filed: June 12, 2019
    Date of Patent: September 6, 2022
    Assignee: DAF Trucks N.V.
    Inventor: Thijs Adriaan Cornelis Van Keulen
  • Patent number: 11421583
    Abstract: A turbocharger includes a turbine housing and a wastegate valve. The turbine housing defines a bypass passage. The turbine housing has a valve seat surface that is a flat surface that the wastegate valve contacts. The wastegate valve opens and closes the bypass passage. The wastegate valve has a valve surface that is a flat surface facing the valve seat surface. When the geometric center of the shape of an outer edge of the valve surface is called the valve center and the geometric center of the shape of an opening of the bypass passage in the valve seat surface is called the opening center, the shortest distance from the valve center to a central axis of the shaft is longer than the shortest distance from the opening center to the central axis of the shaft.
    Type: Grant
    Filed: September 13, 2021
    Date of Patent: August 23, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Junya Takahashi, Takeshi Murase, Masaaki Matsuda
  • Patent number: 11408324
    Abstract: An engine device including an exhaust manifold provided on an exhaust side surface which is a first side surface of a cylinder head and a two-stage turbocharger that is driven by exhaust gas discharged from the exhaust manifold. The two-stage turbocharger includes a high-pressure turbocharger coupled to the exhaust manifold and a low-pressure turbocharger coupled to the high-pressure turbocharger. The high-pressure turbocharger is arranged on a side of the exhaust manifold. The low-pressure turbocharger is arranged above the exhaust manifold. An exhaust gas outlet of the high-pressure turbocharger and an exhaust gas inlet of the low-pressure turbocharger are coupled with each other through a flexible high-pressure exhaust gas pipe.
    Type: Grant
    Filed: December 12, 2017
    Date of Patent: August 9, 2022
    Assignee: YANMAR POWER TECHNOLOGY CO., LTD.
    Inventor: Masataka Uchibori
  • Patent number: 11408331
    Abstract: A wastegate assembly for a turbocharger includes a valve element. The valve element has a valve body, a first shaft extending away from the valve body along a first axis, and a second valve shaft spaced from the first valve shaft and extending away from the valve body along a second axis. The valve element is movable between a first and a second position to control exhaust gas flow to a turbine housing interior of the turbocharger. The wastegate assembly also includes a valve arm coupled to the first and second valve shafts for moving the valve element between the first and second positions. The wastegate assembly further includes a washer coupled to at least one of the first and second valve shafts and axially spaced from the valve arm with respect to the first and second axes.
    Type: Grant
    Filed: March 6, 2020
    Date of Patent: August 9, 2022
    Assignee: BorgWarner Inc.
    Inventors: George Edward Heddy, III, Dominic William DePaoli
  • Patent number: 11401858
    Abstract: An exhaust turbocharger includes an exhaust control device provided with an exhaust flap for adjusting an exhaust gas flow flowing through a turbine stage of the exhaust turbocharger during the operation thereof, a control gear coupled to the exhaust flap, and a servomotor via which the exhaust flap can be moved in a regulated and/or controlled manner by operation of the control gear at least between a closing position, in which the exhaust flap closes an exhaust gas opening in a turbocharger housing of the turbocharger, through which exhaust gas flows during the operation of the exhaust turbocharger, and at least one other position in which the exhaust flap allows exhaust gas to flow through the exhaust gas opening. The control gear is a self-locking gear via which the exhaust flap can be prestressed in the closing position thereof in relation to the turbocharger housing.
    Type: Grant
    Filed: March 17, 2020
    Date of Patent: August 2, 2022
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Harald Daxberger, Leopold Eisterlehner, Andreas Kerschbaummayr
  • Patent number: 11396842
    Abstract: A method and device for operating an internal combustion engine having a supercharging system that has an exhaust turbocharger and an electrically driven compressor. An output of the exhaust turbocharger is adjustable by a control element. A boost pressure setpoint is determined for achieving an increased engine torque setpoint. The supercharging system is adjusted to build up the actual boost pressure in accordance with the boost pressure setpoint and a positive scavenging gradient in a cylinder of the internal combustion engine is adjusted as the overriding command variable for driving the supercharging system.
    Type: Grant
    Filed: April 8, 2020
    Date of Patent: July 26, 2022
    Assignee: Volkswagen Aktiengesellschaft
    Inventors: Sebastian Heinken, Javier Bartolome, Florian Frese, Sebastian Keich
  • Patent number: 11391223
    Abstract: A controller may identify an indication to initiate an engine braking procedure associated with an engine of a machine. The controller may obtain, based on identifying the indication to initiate the engine braking procedure, information relating to a requested amount of engine braking power of the engine. The controller may cause one or more components of a variable geometry turbocharger (VGT) of the engine to adjust, and a throttle valve of the engine to adjust, based on the information relating to the requested amount of engine braking power of the engine.
    Type: Grant
    Filed: August 19, 2020
    Date of Patent: July 19, 2022
    Assignee: Caterpillar Inc.
    Inventors: Wade James Robel, Spencer Landon Huhn, Kevin Weiss, John Robert McDonald, Jason Kenneth Bloms
  • Patent number: 11384697
    Abstract: A method and system for controlling operation of a two-stroke engine having a turbocharger includes the two-stroke engine comprising an electronically controlled exhaust valve. A throttle position sensor generates a throttle position signal corresponding to a position of a throttle plate of a throttle. A boost box is coupled to the two-stroke engine. A boost box pressure sensor is coupled to the boost box and generates a boost box pressure signal corresponding to a pressure within the boost box. A controller is coupled to the boost box pressure signal controlling a position of the electronically controlled exhaust valve in response to the boost box pressure signal and the throttle position signal.
    Type: Grant
    Filed: January 9, 2021
    Date of Patent: July 12, 2022
    Assignee: POLARIS INDUSTRIES INC.
    Inventors: James H. Buchwitz, Dallas J. Blake, Lucas R. Salfer, Alexander M. Hetteen, Reed A. Hanson, Darren J. Hedlund, Daniel E. Erickson, Chad A. Dale, Derek D. Zimney
  • Patent number: 11371422
    Abstract: A method for controlling and/or regulating an exhaust gas turbocharger of an internal combustion engine, the exhaust gas turbocharger being protected against an exceeding of a maximum rotational speed, an actual boost pressure being compared with a setpoint boost pressure. The risk of a maximum rotational speed of the exhaust gas turbocharger being exceeded is prevented in that a manipulated variable assigned to the exhaust gas turbocharger is compared with a manipulated variable limit characteristic and is limited, if necessary, the manipulated variable limit characteristic having a time-limited, first portion and a chronologically subsequent, second portion following a change in the setpoint boost pressure, the first portion ending after a predetermined target time, the second portion of the manipulated variable limit characteristic being reduced with respect to the first portion in such a way that the maximum rotational speed of the exhaust gas turbocharger is not reached.
    Type: Grant
    Filed: May 1, 2020
    Date of Patent: June 28, 2022
    Assignee: Volkswagen Aktiengesellschaft
    Inventor: Sebastian Heinken
  • Patent number: 11371444
    Abstract: A method of controlling an internal combustion engine in a vehicle that includes a cylinder, a fuel system for supplying fuel to the cylinder, an air guide arranged to guide an air flow to the cylinder, and an exhaust guide arranged to guide a gas flow from the cylinder, the method including controlling the engine to provide a braking torque, the control including terminating the supply of fuel to the cylinder, restricting the flow through the exhaust guide, and restricting the flow through the air guide. The control of the engine to provide a braking torque also includes determining a value of a rotational speed of a turbocharger of the engine, and adjusting, in dependence on the determined turbocharger rotational speed value, the restriction of the flow through the air guide, and/or the restriction of the flow through the exhaust guide.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: June 28, 2022
    Assignee: VOLVO TRUCK CORPORATION
    Inventor: Anders Mohlin
  • Patent number: 11352944
    Abstract: A clearance ? between an inner peripheral surface of an attachment hole of an attachment tongue and an outer peripheral surface of a valve shaft is set to be smaller than an allowable displacement amount ? in an axial direction of a valve with respect to the attachment tongue. When a condition is satisfied in which the outer peripheral surface of the valve shaft comes into contact with a front-side periphery and a back-side periphery of the attachment hole of the attachment tongue, and in which a top surface of a valve body comes into contact with a back surface of the attachment tongue, a waste gate valve is constituted so that a metal washer becomes non-contact with a front surface of the attachment tongue.
    Type: Grant
    Filed: October 29, 2020
    Date of Patent: June 7, 2022
    Assignee: IHI Corporation
    Inventor: Jinhee Byon
  • Patent number: 11339711
    Abstract: The invention relates to a method for operating an internal combustion engine (100) having an exhaust-gas turbocharger (5, 10, 15) for compressing the air fed to the internal combustion engine (100), wherein a drive power of a turbine (10) of the exhaust-gas turbocharger (5, 10, 15) in an exhaust tract (20) of the internal combustion engine (100) is changed through variation of a turbine geometry of the turbine (10), wherein, in a first control algorithm (I), a setpoint charge pressure (pLSoll) at the outlet of the compressor (5) of the exhaust-gas turbocharger (5, 10, 15) in the air feed tract (50) upstream of the combustion motor (55) is controlled in a manner dependent on a setpoint exhaust-gas back pressure (pT1Soll) to be set in an exhaust tract (20) downstream of the combustion motor (55) upstream of the turbine (10) of the internal combustion engine (100), wherein the setpoint charge pressure (pLSoll) is assigned an opening cross-sectional area of the turbine (10), which is controlled, by means of an a
    Type: Grant
    Filed: April 5, 2018
    Date of Patent: May 24, 2022
    Assignee: VOLKSWAGEN AKTIENGESELLSCHAFT
    Inventors: Sebastian Heinken, Matthias Kreft