Having Condition Responsive Valve Controlling Engine Exhaust Flow Patents (Class 60/602)
  • 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: 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: 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: 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
  • Patent number: 11339715
    Abstract: The present invention relates to an improved turbocharger assembly, particularly of the variable geometry type. The improved turbocharge assembly contains a turbine. The turbine includes an impeller housed in a casing, a flange that can be sealingly associated with a corresponding flange of an exhaust gas manifold of an engine, and a clapet valve that contains a shutter element and a housing seat. The housing seat is fashioned in a frame made in one piece with the casing.
    Type: Grant
    Filed: September 27, 2019
    Date of Patent: May 24, 2022
    Assignee: FB DESIGN S.R.L.
    Inventor: Fabio Buzzi
  • Patent number: 11333071
    Abstract: A system includes a divided volute turbocharger that delivers compressed air to an internal combustion engine and receives exhaust gas from the internal combustion engine. The turbocharger includes a turbine housing, a first and second volute, and a turbine housing outlet. The system also includes turbine wheel disposed in the turbine housing and a vane ring disposed in the turbine housing between the turbine wheel and the volutes. The vane ring includes a plurality of vanes having an asymmetric vane pattern disposed on a vane ring surface of an annular disk that receives the turbine wheel therewithin to direct and control the flow of exhaust from the volutes into the turbine wheel with generally equal flow while significantly reducing HCF forcing function.
    Type: Grant
    Filed: October 26, 2020
    Date of Patent: May 17, 2022
    Assignee: BorgWarner Inc.
    Inventors: Greg Williams, Drew Yoder, Michael Eugene Harris, Paul Troxler, Abhishek Biswas, Craig Andrew Colont
  • Patent number: 11326475
    Abstract: A turbocharger includes a compressor housing, a turbine housing, a bearing housing, a variable nozzle unit, and a fixing member. The variable nozzle unit includes a first plate, a second plate, a plurality of nozzle vanes, and an attitude changing mechanism. The fixing member includes an engagement portion that is engaged with at least one of the first plate and the second plate, a through shaft portion shaped to extend through the bearing housing toward the compressor housing, and a fixing portion that fixes an end portion of the through shaft portion on the compressor housing side to the hearing housing.
    Type: Grant
    Filed: October 25, 2019
    Date of Patent: May 10, 2022
    Assignees: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tsuyoshi Uesugi, Takashi Tsukiyama
  • Patent number: 11306649
    Abstract: Provided is an engine system including: a bypass pipe (bypass flow passage) connecting an upstream side and a downstream side of the turbine on an exhaust flow passage; a bypass valve configured to open and close the bypass flow passage; and a catalytic activation controller configured to control the bypass valve and a compression ratio of a combustion chamber.
    Type: Grant
    Filed: October 26, 2020
    Date of Patent: April 19, 2022
    Assignee: IHI CORPORATION
    Inventors: Yutaka Masuda, Yasunori Ashikaga, Yoshiyuki Umemoto
  • Patent number: 11293341
    Abstract: An internal combustion engine for a motor vehicle includes an exhaust system through which exhaust gas can flow and in which a first exhaust gas aftertreatment element is disposed. An exhaust gas turbocharger has a turbine and the turbine has a turbine wheel which is disposed upstream of the first exhaust gas aftertreatment element. A bypass line bypasses the turbine wheel and via the bypass line at least part of the exhaust gas can bypass the turbine wheel. The bypass line also bypasses the first exhaust gas aftertreatment element. The bypass line is fluidically connected to the exhaust system at a branch point disposed upstream of the turbine wheel and upstream of the first exhaust gas aftertreatment element. The bypass line is fluidically connected to the exhaust system at a discharge point disposed downstream of the turbine wheel and downstream of the first exhaust gas aftertreatment element.
    Type: Grant
    Filed: May 14, 2019
    Date of Patent: April 5, 2022
    Assignee: Daimler AG
    Inventors: Thomas Kuhn, Nils Brinkert, Rene Ernst
  • Patent number: 11280259
    Abstract: There is provided a turbine comprising: a turbine housing; a turbine wheel; an inlet upstream of the turbine wheel, the inlet defining a first inlet portion and a second inlet portion; an outlet downstream of the turbine wheel, the outlet defining a first outlet portion and a second outlet portion; and a wastegate arrangement configured to selectively vent exhaust gas from the first inlet portion to the first outlet portion via a first bypass passage, and further configured to selectively vent exhaust gas from the second inlet portion to the second outlet portion via a second bypass passage; wherein the first outlet portion and the second outlet portion are separated by a baffle of the turbine housing.
    Type: Grant
    Filed: October 17, 2018
    Date of Patent: March 22, 2022
    Assignee: CUMMINS LTD
    Inventors: Oscar McGeehan, John Bywater, Richard Goodyear, Mark R. Holden, George E. Sandford
  • Patent number: 11274673
    Abstract: A dual compressor turbocharger includes two compressors. One compressor supplies fuel pressure, and one compressor supplies air pressure. The dual compressor turbocharger includes a turbine driven by exhaust of an engine and a shaft coupled to the turbine. The first compressor is mounted on the shaft and includes a first inlet coupled to an air supply and a first outlet coupled to an air intake of the engine. The second compressor is mounted on the shaft and includes a second inlet coupled to a fuel supply and a second outlet coupled to a fuel supply rail of the engine.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: March 15, 2022
    Assignee: Kohler Co.
    Inventors: Isaac S. Frampton, Robert J. Danforth, III, Paul Honkanen
  • Patent number: 11268463
    Abstract: One embodiment is a system comprising an engine including a dedicated EGR cylinder configured to provide EGR to the engine via an EGR loop, a non-dedicated cylinder, a plurality of injectors structured to inject fuel into the dedicated EGR cylinder and the non-dedicated EGR cylinder, and an electronic control system operatively coupled with the fueling system and the ignition system. The electronic control system is configured to evaluate engine operating parameters including an engine load and an engine speed. The electronic control system is responsive to variation of the engine operating parameters to control operation of the fueling system to vary combustion in the at least one dedicated cylinder between rich of stoichiometric and stoichiometric.
    Type: Grant
    Filed: June 19, 2020
    Date of Patent: March 8, 2022
    Assignee: Cummins Inc.
    Inventors: David J. Stroh, Kartavya Neema, Anthony Kyle Perfetto, Shashank Tamaskar
  • Patent number: 11261779
    Abstract: A turbine arrangement for controlling a gas flow, in particular for a fuel cell (2) or for an internal combustion engine (3), and a charging device having such a turbine arrangement, is described, in which the gas flow supplied by an inlet (10) can be controlled by an adjustable slide bushing (48) covering an entry opening (43) to form a turbine wheel (38) arranged in a turbine housing (30) between a closed position and an open position, such that, in the closed position, the gas flow is throttled and, in the at least partially open position, a controllable proportion of the gas flow drives the turbine wheel (38) arranged on a shaft (22) of an electric engine (18) functioning as a generator for recuperating energy, wherein the slide bushing (48) releases a wall opening (64) in the turbine housing (30) above a predetermined value of the gas flow, such that a bypass channel emerges in order to guide gas flow past the turbine wheel (38) directly to an outlet opening (24).
    Type: Grant
    Filed: October 26, 2020
    Date of Patent: March 1, 2022
    Assignee: BorgWarner Inc.
    Inventor: Dietmar Metz
  • Patent number: 11255255
    Abstract: A turbocharger includes a turbine housing and a wastegate assembly. The turbine housing has a wastegate duct defining a wastegate channel and a valve seat disposed about the wastegate channel. The wastegate assembly has a valve body engageable with the valve seat and a shaft fixed to the valve body at a connection interface for selectively engaging the valve body with the valve seat at a first plane. The connection interface has a centroid and a second plane tangential to the centroid. A second axis is normal to the second plane and is angularly tilted relative to a first axis normal to the first plane at which the valve body and the valve seat are engaged.
    Type: Grant
    Filed: April 10, 2020
    Date of Patent: February 22, 2022
    Assignee: BorgWarner Inc.
    Inventor: Matthew Brian Cooley
  • Patent number: 11248546
    Abstract: Engine controllers and control schemes are provided for managing engine state transitions requiring increased compressor pressure ratios in turbocharged engines operating in a cylinder output level modulation mode (e.g., skip fire, multi-level skip fire, or firing level modulation modes). In some circumstances, turbo lag can be mitigated by initially transitioning the engine to an intermediate effective firing density that is higher than both the initial and target effective firing density to increase the flow of gases through the engine and the turbocharger while maintaining a compressor ratio the same as or close to the initial compressor pressure ratio. After reaching a point where the desired torque is actually generated at the intermediate effective firing density, the operational effective firing density is gradually reduced to the target effective firing density while increasing the operational compressor pressure ratio to the target compressor ratio.
    Type: Grant
    Filed: October 26, 2020
    Date of Patent: February 15, 2022
    Assignees: Tula Technology, Inc., Cummins Inc.
    Inventors: Elliott A. Ortiz-Soto, Shahaboddin Owlia
  • Patent number: 11225903
    Abstract: A turbocharger includes a turbine housing that has a bypass passage defined therein. The bypass passage connects a section of an exhaust passage on the upstream side of a turbine wheel to a section of the exhaust passage on the downstream side of the turbine wheel. A wastegate, which selectively opens and closes the bypass passage, is attached to the turbine housing. A valve seat for the wastegate is provided at an open edge of the bypass passage in the inner wall surface of the turbine housing. An abradable portion, which is a deformable portion, is adhered to the valve member of the wastegate. The abradable portion is configured to be deformed in accordance with the shape of the valve seat by contacting the valve seat when the bypass passage is shifted from the open state to the fully closed state.
    Type: Grant
    Filed: November 22, 2019
    Date of Patent: January 18, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Akitoshi Iwata, Osamu Igarashi
  • Patent number: 11220957
    Abstract: An exhaust gas turbocharger includes a turbine casing (4) within which a turbine wheel (10) is rotatably arranged relative to an axis of rotation (1). A guide vane ring (22) is non-rotatably arranged which comprises variable guide vanes (44) which are arranged upstream of the turbine wheel (10) with respect to an exhaust gas flow. The guide vane ring (22) is centered by means of a matched pair of two contact surfaces (24, 26) pressed against each other with respect to the turbine casing (4), of which at least the one contact surface (24 or 26, respectively) is formed conically.
    Type: Grant
    Filed: June 5, 2019
    Date of Patent: January 11, 2022
    Assignee: IHI Charging Systems International GmbH
    Inventor: Marc-Pierre Weiß
  • Patent number: 11215131
    Abstract: An internal combustion engine includes combustion chambers, each having a first intake port, and first and second exhaust ports. An intake manifold is connected to the first intake port of each combustion chamber, a main pressure booster upstream of the intake manifold. An exhaust discharge arrangement includes a main exhaust manifold connected to the first exhaust port of each combustion chamber, the exhaust discharge arrangement connected to the second exhaust port of a first subset combustion chambers, and an exhaust recirculation manifold connected to the second exhaust port of a second subset combustion chambers and connected to an upstream side of the main pressure booster. The engine operates in high load and low load modes, which vary how the engine evacuates the exhaust gas of the second subset combustion chambers to the exhaust recirculation manifold. A related method is also disclosed.
    Type: Grant
    Filed: March 16, 2018
    Date of Patent: January 4, 2022
    Assignee: FREEVALVE AB
    Inventors: Anders Höglund, Urban Carlson
  • Patent number: 11208947
    Abstract: An exhaust gas turbocharger may include a turbine and a compressor for compression of charge air for an internal combustion engine, and a controllable actuator and a component mechanically adjustable via the actuator. The compressor may include a compressor casing through which charge air is flowable. A holding device may be integrally disposed on the compressor casing. The actuator may be coupled to the holding device, and may be secured to the compressor casing via the holding device. The holding device may have at least one integrally formed protective contour that may extend around the actuator in certain regions at a separation distance from the actuator, and may enclose the actuator in certain regions, such that the actuator is shielded in certain regions from external influences via the at least one protective contour.
    Type: Grant
    Filed: December 11, 2019
    Date of Patent: December 28, 2021
    Inventors: Rene Rogasch, Hoang-Nguyen Tran
  • Patent number: 11208915
    Abstract: A driving device includes: a shaft; and a cylindrical bush having an insertion hole into which the shaft can be inserted. The insertion hole includes an opening portion having an inner diameter decreasing from a first end surface toward a second end surface of the bush, and a small-diameter hole portion extending from an end of the opening portion to the second end surface. The shaft includes a shaft portion having an outer diameter smaller than an inner diameter of the small-diameter hole portion, and an abutment portion having an outer diameter greater than the inner diameter of the small-diameter hole portion. The bush has a sealing surface defining the opening portion. The abutment portion of the shaft abuts on the sealing surface of the bush in an axial direction of the insertion hole to seal a gap formed between the shaft and the bush inside the insertion hole.
    Type: Grant
    Filed: January 30, 2018
    Date of Patent: December 28, 2021
    Assignee: MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.
    Inventors: Tatsuya Ishizaki, Yuta Ishii, Takaya Futae, Noriyuki Hayashi
  • Patent number: 11193435
    Abstract: A control system for an engine including a turbocharger disposed downstream of a plurality of cylinders. The control system includes an engine sensor configured to generate a signal indicative of an operational characteristic of the engine. The control system includes a first valve configured to control exhaust flow through a first set of cylinders from the plurality of cylinders. The control system includes a second valve configured to control exhaust flow through a second set of cylinders from the plurality of cylinders. The control system includes a controller communicably coupled to the engine sensor, the first valve, and the second valve. The controller is configured to receive the signal generated by the engine sensor. The controller is configured to actuate the first valve and the second valve based on the received signal. The first valve and the second valve are actuated to adjust exhaust flow received by the turbocharger.
    Type: Grant
    Filed: May 15, 2020
    Date of Patent: December 7, 2021
    Assignee: Caterpillar Inc.
    Inventor: Christopher Lusardi
  • Patent number: 11187134
    Abstract: An exhaust manifold for an internal combustion engine is provided. The manifold comprises at least one first exhaust gas inlet connectable to a first bank of cylinders of the engine, and at least one second exhaust gas inlet connectable to a second bank of cylinders of the engine. First and second exhaust gas outlets are connectable to respective first and second volutes of a twin volute turbocharger. At least one wastegate outlet is connectable to a bypass passage which bypasses the turbocharger. A diverter valve is located within the manifold, wherein the diverter valve is adapted to selectively direct exhaust gas from the first and second inlets to at least one of the first and second exhaust gas outlets and the wastegate outlet. A turbocharger is also provided having the same diverter valve arrangement, as are internal combustion engines having either the manifold or turbocharger, and a vehicle having such an internal combustion engine.
    Type: Grant
    Filed: November 1, 2018
    Date of Patent: November 30, 2021
    Assignee: Perkins Engines Company Limited
    Inventor: Richard Kruiswyk
  • Patent number: 11181062
    Abstract: An engine control system includes: a target air mass module configured to determine a target mass of air within a cylinder of an engine based on a torque request; a boost control module configured to control boost provided by a turbocharger based on the torque request; an exhaust gas recirculation (EGR) control module configured to selectively: set a target opening of an EGR valve based on the target mass of air; set the target opening of the EGR valve to a predetermined minimum opening, where the predetermined minimum opening is greater than zero percent open; and control opening of the EGR valve based on the target opening of the EGR valve.
    Type: Grant
    Filed: November 14, 2019
    Date of Patent: November 23, 2021
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: John Maley, Joshua D. Cowgill, Casey S. Anderson, Douglas C. Sarsen
  • Patent number: 11162509
    Abstract: A turbine housing for a turbocharger includes an inlet passage and an outlet passage connected to a turbine housing body. The outlet passage has a longitudinal axis and comprises a first section and a second section downstream of the first section. The first section includes a first inlet opening having a first cross-sectional area, a first outlet opening downstream of the first inlet opening, and a first length between the first inlet opening and the first outlet opening, wherein the first section has an opening angle between 0° and 10° relative to the longitudinal axis along the first length. The second section downstream of the first section includes a second inlet opening, a second outlet opening downstream of the second inlet opening, a second cross-sectional area at least 1.8 times greater than the first cross-sectional area, and a second length between the second inlet opening and the second outlet opening that is less than 50% of the first length.
    Type: Grant
    Filed: March 4, 2020
    Date of Patent: November 2, 2021
    Assignee: BorgWarner Inc.
    Inventor: Konstantin Dietrich
  • Patent number: 11156151
    Abstract: A regulating device for an exhaust turbocharger, is received in an exhaust gas conducting section of the exhaust turbocharger, with the aid of the regulating device a fluid flow onto a turbine wheel rotatably received in the exhaust gas conducting section can be conditioned, a through-flow opening formed in the exhaust gas conducting section is to be opened and closed with the aid of a valve element of the regulating device, the valve element is arranged on a pivot arm of the regulating device, and wherein the valve element has a sealing surface for avoiding a leak in a closed position of the regulating device. To reduce secondary torques acting upon the valve element during operation, a connection is formed between the pivot arm and the valve element in or at least close to a center of gravity of an effective valve element body of the valve element.
    Type: Grant
    Filed: January 8, 2020
    Date of Patent: October 26, 2021
    Assignee: IHI CHARGING SYSTEMS INTERNATIONAL GMBH
    Inventors: Zdenek Reif, Manfred Guthoerle, Rohit Pawar, Ralf Schawer
  • Patent number: 11149667
    Abstract: An internal combustion engine includes an inline turbocharger and at least a first inline turbocharger that has a first turbine air valve, and a first inline compressor that has a first compressor air valve. A control valve is responsive to commands from an electronic controller to move the air valves between open and closed positions. The electronic controller monitors operating parameters of the engine to diagnose a fault. determine whether an air valve is stuck open or closed, and adjust a priority schedule for activating or deactivating the first inline turbocharger based on the type of fault.
    Type: Grant
    Filed: September 10, 2020
    Date of Patent: October 19, 2021
    Assignee: Caterpillar Inc.
    Inventors: Julia H. Jenks, Karthik Jayasankaran, Shivangi Wagle, Kevin Sergott, Kosha B. Patel
  • Patent number: 11136915
    Abstract: A wastegate assembly includes a valve arm moveable between a first position and a second position to control flow of exhaust gas to a turbine housing interior of a turbocharger. The valve arm includes a proximal end, a distal end spaced from the proximal end, and a valve arm orientation projection spaced from the distal end and extending away from the proximal end. The wastegate assembly also includes a valve body coupled to the distal end of the valve arm that is moveable with the valve arm. The valve body includes a valve body orientation component, and the orientation projection of the valve arm extends toward and is orientable with the orientation component of the valve body to orient the valve arm relative to the valve body. The valve body is disposed between the orientation projection of the valve arm and the distal end of the valve arm.
    Type: Grant
    Filed: December 5, 2019
    Date of Patent: October 5, 2021
    Assignee: Borg Warner Inc.
    Inventors: Alexander George Milburn, Matthew Brian Cooley, Kai Tanaka
  • Patent number: 11131399
    Abstract: A diaphragm control valve includes a diaphragm valve and a valve control. The diaphragm valve includes a valve housing having a flow channel, a diaphragm, and an actuator. The valve control comprises an actuating element. The valve control comprises a correction element and provides a plurality of predefined correction characteristic lines. The valve control is arranged such that a user can select one of the correction characteristic lines, and the correction element along with the selected correction characteristic line determines a corrected position set value from a preset position set value. The actuating element is configured to determine a manipulated variable from the corrected position set value and to control the actuator using the manipulated variable such that the diaphragm control valve has a predetermined diaphragm control valve characteristic line.
    Type: Grant
    Filed: March 2, 2020
    Date of Patent: September 28, 2021
    Inventor: Klaus Beck
  • Patent number: 11131234
    Abstract: A turbocharger includes a turbine housing. The turbine housing includes a turbine inlet wall defining an inlet passage, an exducer shroud wall defining an exducer interior, a turbine outlet wall defining an outlet passage, a wastegate port wall defining a wastegate channel, and a bushing wall coupled to the wastegate port wall and defining a bushing boss extending along a bushing axis, and a valve seat disposed about the wastegate channel. The turbocharger also includes a wastegate assembly. The wastegate assembly includes a valve element engageable with the valve seat. The wastegate port wall is disposed outside of the exducer interior such that the wastegate port wall and the bushing wall are configured to be thermally decoupled from the turbine inlet wall and such that relative displacement between the valve seat and the bushing axis is reduced during operation of the turbocharger.
    Type: Grant
    Filed: December 13, 2019
    Date of Patent: September 28, 2021
    Assignee: BorgWarner Inc.
    Inventors: Matthew Brian Cooley, Kai Tanaka
  • Patent number: 11105218
    Abstract: A compressor with a compressor housing in which a compressor wheel is arranged. The compressor additionally includes a cartridge which is arranged in the compressor housing in the area of a compressor inlet. The cartridge is designed to variably change the cross section of the compressor inlet.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: August 31, 2021
    Assignee: BorgWarner Inc.
    Inventors: Sascha Karstadt, Waldemar Henke, Juergen Werner, Stefan Muenz, Sascha Weiske, Gerd Spinner, Uwe Tomm, Patric Hoecker
  • Patent number: 11098662
    Abstract: An engine system incorporating an intake manifold, a compressor, and a controller. The compressor may provide air to the intake manifold and the controller may be connected to the intake manifold and the compressor. The controller may receive a control signal and control air flow from the compressor to the intake manifold based on the received control signal. The controller may control the air flow from the compressor to the intake manifold based on a first equation when a value related to the control signal is on a first side of a threshold and according to a second equation when the value is on a second side of the threshold. The controller may control the air flow between the compressor and intake manifold according to the second equation to prevent the compressor from operating at a surge condition when controlling the air flow according to the first equation.
    Type: Grant
    Filed: February 19, 2020
    Date of Patent: August 24, 2021
    Assignee: Garrett Transportation I, Inc.
    Inventors: Radek Beno, Daniel Pachner
  • Patent number: 11098640
    Abstract: A method for determining a basic boost pressure of a gas conducting system of an internal combustion engine with a turbocharger that has a compressor, a turbine, a shaft connecting the compressor and the turbine, and a turbocharger actuator for varying a flow velocity through the turbine or a pressure ratio across the turbine. The method comprises calculation of an exhaust gas back pressure at the open turbocharger actuator position, wherein the flow velocity through the turbine or the pressure ratio across the turbine is minimal in the open turbocharger actuator position, and determination of the basic boost pressure as a function of the calculated exhaust gas back pressure at the open turbocharger actuator position. An engine controller for carrying out a method for determining a basic boost pressure is also provided.
    Type: Grant
    Filed: February 3, 2020
    Date of Patent: August 24, 2021
    Assignee: Volkswagen Aktiengesellschaft
    Inventor: Sebastian Heinken
  • Patent number: 11085380
    Abstract: An engine control system includes: a delay estimating unit configured to estimate a auto-ignition delay based on first parameters including a composition of fuel gas; a auto-ignition predicting unit configured to predict a auto-ignition timing based on the auto-ignition delay; a completion predicting unit configured to predict a combustion completion timing of the fuel gas; and an operation control unit configured to control an engine based on a result of comparison between the auto-ignition timing and the combustion completion timing.
    Type: Grant
    Filed: March 5, 2020
    Date of Patent: August 10, 2021
    Assignee: IHI CORPORATION
    Inventors: Yutaka Masuda, Takahide Aoyagi, Takayuki Hirose, Takayuki Yamada, Hayato Nakajima
  • Patent number: 11085365
    Abstract: A falsification prevention structure is to prevent falsification of the performance of a turbocharger. A bearing housing of the turbocharger has a flow rate adjustment screw which is operated to adjust a turbine flow rate of the turbocharger. The falsification prevention structure includes a cover member which is fastened to a flange portion of the bearing housing by a fixing bolt and which covers the flow rate adjustment screw, and a cap which is mounted in an irremovable manner with respect to the cover member and which blocks a bolt hole.
    Type: Grant
    Filed: December 23, 2020
    Date of Patent: August 10, 2021
    Inventors: Yoshinari Yoshida, Masaru Nishioka, Nobuaki Sugiu, Ikuma Nishiguchi, Satoru Furuta
  • Patent number: 11073062
    Abstract: A method for operating an exhaust gas aftertreatment system of an internal combustion engine and an exhaust gas aftertreatment system are described. The internal combustion engine has a turbine wheel, which is arranged in the exhaust gas line, of an exhaust gas turbocharger, and a bypass line which bypasses the turbine wheel and in which a three-way pre-catalytic converter is arranged. A three-way main catalytic converter is situated in the exhaust gas line. A NOx sensor is provided which measures the NOx fraction in the exhaust gas downstream of the three-way pre-catalytic converter. If the measured NOx fraction exceeds a threshold value, the three-way pre-catalytic converter is diagnosed as faulty.
    Type: Grant
    Filed: February 17, 2020
    Date of Patent: July 27, 2021
    Assignee: Vitesco Technologies GmbH
    Inventor: Hong Zhang
  • Patent number: 11066984
    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: June 22, 2020
    Date of Patent: July 20, 2021
    Assignee: Yanmar Power Technology Co., Ltd.
    Inventors: Taishi Murakami, Masayoshi Doul
  • Patent number: 11066062
    Abstract: Methods and systems are provided for reducing engine compression torque when an engine having a split exhaust system is spun unfueled. In one example, a method may include maintaining closed a blowdown exhaust valve of a cylinder, the blowdown exhaust valve coupled to a first exhaust manifold that directs gases from the cylinder to a catalyst, and opening a scavenge exhaust valve of the cylinder, the scavenge exhaust valve coupled to a second exhaust manifold that directs gases from the cylinder to an exhaust gas recirculation system. In this way, compression of gases within they cylinder is reduced while gas flow to the catalyst is prevented.
    Type: Grant
    Filed: October 19, 2018
    Date of Patent: July 20, 2021
    Assignee: Ford Global Technologies, LLC
    Inventors: Ralph Wayne Cunningham, Joseph Ulrey, William Cary Cole, Brad Boyer, Ross Dykstra Pursifull
  • Patent number: 11060447
    Abstract: A charging device may include a turbine housing and a wastegate valve device. The wastegate valve device may include a flap, a spindle arm, a wastegate spindle, an axial stop, and a lever arm non-rotatably attached to the wastegate spindle. The wastegate spindle may be rotatably mounted in a bushing disposed on the turbine housing. A wastegate duct may be disposed in the turbine housing. The wastegate duct may have a duct aperture enclosed by a valve seat. The duct aperture, when in a closed state, may be closed by the flap of the wastegate valve device. A sealing face of the flap may be defined by a sequence of at least two conical peripheral surfaces arranged next to one another and each having a different inclination.
    Type: Grant
    Filed: July 16, 2019
    Date of Patent: July 13, 2021
    Inventors: Alexander Hoehn, Matthias Kaczorowski, Steffen Kurz, Felix Scheerer, Fritz Schlegel
  • Patent number: 11060525
    Abstract: A control system for a turbocharger of a vehicle includes an enable module, an error module, a reduction module, and a boost module. The enable module is configured to: enable reduction in a boost pressure setpoint of a compressor of the turbocharger based on whether a fault exists, load on an engine, and a compressor outlet temperature; and generate an enable signal indicating whether reduction in the boost pressure setpoint is enabled. The error module configured to determine a difference between the compressor outlet temperature and a predetermined limit. The reduction control module is configured to, in response to the enable signal indicating reduction in the boost pressure setpoint is enabled, reduce the boost pressure setpoint based on the difference. The boost module is configured to adjust boost pressure output of the compressor based on the boost pressure setpoint.
    Type: Grant
    Filed: November 15, 2019
    Date of Patent: July 13, 2021
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: John Maley, Douglas C. Sarsen, Casey S. Anderson, Joshua D. Cowgill
  • Patent number: 11060448
    Abstract: A turbocharger includes a turbine housing accommodating a turbine wheel, and a waste gate valve connected to the turbine housing. A valve seat for the waste gate valve is provided at an opening edge of a bypass passage on an inner wall surface of the turbine housing. The waste gate valve includes a shaft rotatably supported by a wall, and a valve element extending in a radial direction of the shaft from an end portion of the shaft on an inner side of the turbine housing. A contact surface of the valve seat and a contact surface of the valve element are a flat surface. The waste gate valve is a one-piece molding including the shaft and the valve element.
    Type: Grant
    Filed: November 18, 2019
    Date of Patent: July 13, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Masanori Saeki
  • Patent number: 11060413
    Abstract: A turbine with variable turbine geometry for an internal combustion engine. The turbine includes a bearing housing, a turbine housing, and a cartridge which has a blade bearing ring for mounting a plurality of adjustable blades. The cartridge is fixed on the bearing housing via at least three bolts.
    Type: Grant
    Filed: November 27, 2017
    Date of Patent: July 13, 2021
    Assignee: BorgWarner Inc.
    Inventors: Thomas Ramb, Leif Heidingsfelder, Christian Haibt, Frank Scherrer
  • Patent number: 11047295
    Abstract: The manufacturing method for a turbocharger includes: connecting a shaft-side member to an actuator while the shaft-side member is inserted into a bush; combining the shaft-side member with a valve body-side member; and fixing the shaft-side member to the valve body-side member in a state where a wastegate valve is driven by the actuator so as to close the wastegate valve, and a contact surface of the valve body is pressed against a bearing surface.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: June 29, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Takahiro Sadamitsu
  • Patent number: 11047271
    Abstract: A compression release type of engine brake socket module is provided between an exhaust rocker arm rotating with respect to a rocker arm shaft and a valve bridge connecting an exhaust valve of an engine. In particular the socket module incudes: a housing which includes an inlet through which brake oil is introduced, a brake piston mounting portion, and a reset member mounting portion communicating with the brake piston mounting portion; a brake piston that is provided to be movable in the brake piston mounting portion; a stopper disposed on one side of an inner space of the housing to limit a moving position of the brake piston; and a reset member that is provided in the reset member mounting portion, and that discharges the brake oil by selectively contacting a push pin coupled to an upper portion of a cylinder head.
    Type: Grant
    Filed: July 10, 2020
    Date of Patent: June 29, 2021
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Jae Hee Jeon, Dong Hyuk Choi
  • Patent number: 11035508
    Abstract: A connection structure of a turbocharger and an intercooler for a vehicle is disclosed. The turbocharger is configured to compress intake air using exhaust gas and includes an outlet for discharging the compressed air, and the intercooler includes an inlet connected to the outlet of the turbocharger and is configured to receive the compressed air through the inlet. An inserting portion having an external diameter smaller than an external diameter of the outlet is formed at an end portion of the outlet facing the intercooler, and is inserted into the inlet of the intercooler. An connecting hose encloses external circumferences of the outlet and the inlet such that the outlet and the inlet are connected to each other through the connecting hose.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: June 15, 2021
    Assignees: Hyundai Motor Company, Kia Corporation
    Inventors: Seung Jae Kang, Won Rok Choi
  • Patent number: 11015518
    Abstract: A variable nozzle device includes: a first plate-shaped member having a first plate portion having an annular shape and being fixed to a bearing housing; a second plate-shaped member having a second plate portion which has an annular shape and which defines a nozzle flow passage between the first plate portion and the second plate portion, the second plate portion having a surface disposed so as to face the first plate portion and another surface disposed so as to face at least partially a scroll flow passage formed inside a turbine housing; at least one nozzle support having, with respect to an axial direction of the nozzle support, an end coupled to the first plate portion and another end coupled to the second plate portion; at least one nozzle vane rotatably supported between the first plate portion and the second plate portion; and a variable nozzle mechanism configured to change a vane angle of the at least one nozzle vane.
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: May 25, 2021
    Assignees: MITSUBISHI HEAVY INDUSTRIES, LTD., MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.
    Inventors: Keigo Sakamoto, Shigeyoshi Sakuma, Eigo Katou, Yosuke Dammoto, Yoji Akiyama, Nariaki Seike, Hiroyuki Arimizu
  • Patent number: 11015505
    Abstract: Methods and systems are provided for cooling an aftertreatment device with exhaust gas. In one example, an exhaust system comprises a recirculation passage branching from an EGR passage from downstream of an EGR cooler to a portion of an exhaust passage between the EGR passage and an aftertreatment device. In one example, the aftertreatment device is an SCR device.
    Type: Grant
    Filed: January 27, 2020
    Date of Patent: May 25, 2021
    Assignee: Ford Global Technologies, LLC
    Inventors: Hans Guenter Quix, Andreas Kuske, David van Bebber