Patents Examined by Ngoc T Nguyen
  • Patent number: 10247149
    Abstract: An engine assembly with an air intake system and a turbocharger device in fluid communication with the air intake system includes an electronic control unit in communication with the air intake system and turbocharger device. A CAC system is in downstream fluid communication with the turbocharger device and in upstream fluid communication with the air intake system and includes at least one flow adjustment mechanism in communication with the electronic control unit and selectively positionable between a first position and one or more second positions to adjust velocity of air from the turbocharger device flowing through the CAC system and to manage condensation buildup in the CAC system and/or to open a bypass duct in order for some or all of the turbo airflow to bypass the CAC system to reduce or eliminate condensation buildup in the CAC system at warm ambient conditions and ice buildup at cold ambient conditions.
    Type: Grant
    Filed: June 7, 2016
    Date of Patent: April 2, 2019
    Assignee: GM Global Technology Operations LLC
    Inventors: Mark D. Nemesh, Werner Filsinger, Kai Becker
  • Patent number: 10233817
    Abstract: Methods and systems are provided for controlling exhaust flow and recovering heat from exhaust gas under different operating conditions. In one example, motive flow of fresh air via an ejector coupled to an exhaust bypass assembly may be utilized to divert exhaust through a heat exchanger during cold-start conditions and heat extracted from the exhaust gas may be utilized for passenger cabin heating and other vehicle heating demands. The exhaust bypass assembly may also be used for EGR delivery wherein the exhaust heat exchanger may be used as an EGR cooler.
    Type: Grant
    Filed: May 10, 2016
    Date of Patent: March 19, 2019
    Assignee: Ford Global Technologies, LLC
    Inventors: Michael James Uhrich, Joseph Norman Ulrey, Ross Dykstra Pursifull
  • Patent number: 10233850
    Abstract: A system for controlling the combustion behavior of an engine is provided. The engine is equipped with a plurality of control subsystems that influence combustion in the engine. The system includes a controller configured to receive a plurality of inputs, to determine a desired subsystem states to operate the engine, and to determine a target value for each of a plurality of control parameters, wherein the target values for one or more control parameters depends on the values of the plurality of inputs. The controller is further configured to communicate the target values of control parameters to the control subsystems.
    Type: Grant
    Filed: October 14, 2015
    Date of Patent: March 19, 2019
    Assignee: DELPHI TECHNOLOGIES IP LIMITED
    Inventors: Gregory T. Roth, Gary C. Fulks, Andrew Fedewa, Xiaojian Yang, Donald V. Johnson
  • Patent number: 10227937
    Abstract: Various methods and systems are provided for detecting a change in turbocharger performance. In one example, a method comprises determining a level of turbocharger imbalance based on output from a turbine speed sensor and generating a signal related to a change in a performance level of the turbocharger if the level of turbocharger imbalance is greater than a threshold.
    Type: Grant
    Filed: November 4, 2015
    Date of Patent: March 12, 2019
    Assignee: GE Global Sourcing LLC
    Inventors: Aninda Bhattacharya, Bret Dwayne Worden, Ajay Kumar Behera, Mahesh Panicker, Wrichik Basu, Matthew John Malone, Arwa Hatim Ginwala
  • Patent number: 10227909
    Abstract: A turbocharged engine exhaust system mounted with a gasket having a difference in cross section height includes a turbocharger rotatable by exhaust gasses discharged from an engine, and able to supply the engine with intake air through turbocharging, a warm-up catalytic converter (WCC) for removing hazardous substances in exhaust gasses discharged from the engine, and the gasket located between a turbocharger flange of the turbocharger and a WCC flange of the WCC, receiving a bolting force of stud bolts which pass through the turbocharger flange and the WCC flange, and operating such that the amount of compression strain of a sealing mass around a portion to which the bolting force is directly applied is greater than the amount of compression strain of the sealing mass in the remaining portion to which the bolting force is not directly applied.
    Type: Grant
    Filed: October 28, 2015
    Date of Patent: March 12, 2019
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION, WOLVERINE KOREA CO., LTD.
    Inventors: Chun-Soon Jang, Sang-Beom Kim, Myoung-Hurn Lee, Myung-Jin Cha
  • Patent number: 10215106
    Abstract: Methods and systems for adjusting exhaust valve timing of an engine are described. In one example, exhaust valve timing of a compression ignition engine is adjusted responsive to a difference between a commanded exhaust valve opening timing and an actual exhaust valve opening timing, the actual exhaust valve opening timing determined from cylinder pressure.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: February 26, 2019
    Assignee: Ford Global Technologies, LLC
    Inventors: Eric Matthew Kurtz, Brien Lloyd Fulton
  • Patent number: 10215114
    Abstract: A vehicle propulsion system includes an internal combustion engine with a cylinder, an intake valve, an exhaust valve, and a cylinder head defining a combustion chamber; an intake manifold in communication with the combustion chamber through the intake valve; an exhaust manifold in communication with the combustion chamber through the exhaust valve; a turbocharger with a compressor in communication with the intake manifold, a turbine in communication with the exhaust manifold, and an electric motor for selectively driving the turbine; and a controller in communication with the electric motor and configured to selectively operate electric motor to drive the turbine to reduce a pressure in the combustion chamber during an engine start process.
    Type: Grant
    Filed: March 1, 2017
    Date of Patent: February 26, 2019
    Inventors: Dalton A Blenc, Aaron Bowles
  • Patent number: 10196992
    Abstract: An engine control device configured to control an engine includes: a turbocharger having a turbine that is configured to be driven by exhaust gas of the engine; and a compressor coupled to the turbine and configured to compress fresh air; an air-bypass passage that communicates between an upstream and a downstream of the compressor; an air-bypass valve configured to open/close the passage; a canister configured to store evaporated fuel gas generated in a fuel tank; an ejector configured to suction the evaporated fuel gas from the canister by using differential pressure between the upstream and the downstream of the compressor and introduce the evaporated fuel gas to the upstream; a purge valve configured to open/close a purge passage through which the evaporated fuel gas is to delivered from the canister to the ejector; and a purge valve diagnosis unit configured to detect stuck open malfunction of the purge valve.
    Type: Grant
    Filed: February 23, 2017
    Date of Patent: February 5, 2019
    Assignee: SUBARU CORPORATION
    Inventors: Yusuke Imaizumi, Makoto Ito
  • Patent number: 10196964
    Abstract: A charge air cooler includes a first, second, and third heat exchange sections. In the first heat exchange section, heat is transferred from a first flow of liquid coolant to a refrigerant in order to cool the first flow of liquid coolant from a first temperature to a second temperature. In the second heat exchange section, heat is transferred from a flow of charge air to a second flow of liquid coolant in order to cool the flow of charge air from a third temperature to a fourth temperature. In the third heat exchange section, heat is transferred from the flow of charge air to the first flow of liquid coolant in order to cool the flow of charge air from the fourth temperature to a fifth temperature, the fifth temperature being less than the first temperature.
    Type: Grant
    Filed: June 6, 2016
    Date of Patent: February 5, 2019
    Assignee: MODINE MANUFACTURING COMPANY
    Inventors: Jason Braun, Frank Lippke, Steven Meshenky, Ashutosh Patil, Mitchell Crawford, Kyle Shisler
  • Patent number: 10197020
    Abstract: An engine system (40) includes an engine (42), and a turbocharger (1) that receives exhaust gas from the engine (42) and delivers charged air to the engine (42). The engine system (40) also includes an electrically-driven compressor-expander (60) disposed in the engine air intake passage (48) between a compressor section (10) of the turbocharger (1) and the engine (42). The compressor-expander (60) is configured to modify the pressure and temperature characteristics of the charged air flow exiting the turbocharger compressor section (10). A valve (50) controls the flow path and/or direction of the charged air flow as it enters the compressor-expander (60).
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: February 5, 2019
    Assignee: BorgWarner Inc.
    Inventors: Jeffrey Carter, Keith Nickson
  • Patent number: 10190547
    Abstract: A partial forced induction system is provided that has one or more combustion engine cylinders with each engine cylinder having a first and a second intake valve with individual ports. A source of forced induction in fluid communication with the one or more combustion engine cylinders and urging air into the one or more combustion engine cylinders. A naturally aspirated intake manifold path connecting to each of the first intake valves at each of said one or more engine cylinders. A forced induction intake manifold path connects the source of forced induction to each of said second intake valves at each of the one or more engine cylinders.
    Type: Grant
    Filed: January 22, 2018
    Date of Patent: January 29, 2019
    Inventor: Chris P. Theodore
  • Patent number: 10190512
    Abstract: Methods and systems are provided for determining a cylinder air charge based on a boost manifold volume of an engine. In one example, a method may include inducing a compressor surge event, and updating the boost manifold volume in response to a difference between an actual surge pressure and an expected surge pressure. The method further includes determining the cylinder air charge based on the updated boost manifold volume.
    Type: Grant
    Filed: November 12, 2015
    Date of Patent: January 29, 2019
    Assignee: Ford Global Technologies, LLC
    Inventors: Baitao Xiao, Hamid-Reza Ossareh, Adam Nathan Banker
  • Patent number: 10180087
    Abstract: A switching rocker arm system includes a rocker assembly having a first end and a second end, and engaging a lash adjuster an and engine valve. The system further includes a first arm rotationally coupled to a second arm at the first or second end, and selectively rotationally coupled to the second arm at the other of the first end and the second end by a latch. In the latched position, a second cam engagement surface of the second arm engages the second cam to operate the engine valve in a high-lift mode, a biasing spring urges the second cam engagement surface into contact with the second cam, and a rotational stop prevents contact of the second cam engagement surface with a base circle portion of the second cam in the low-lift mode.
    Type: Grant
    Filed: June 28, 2017
    Date of Patent: January 15, 2019
    Assignee: EATON CORPORATION
    Inventors: Austin Robert Zurface, Daniel Bennett Trudell, Andrei Dan Radulescu
  • Patent number: 10167826
    Abstract: An aspirator coupled between an inlet of a compressor and an engine intake manifold may include sonic/supersonic expansion curves for both forward and reverse flow through the aspirator. Suction flow may enter a first entraining port coupling an ambient side of the aspirator with a vacuum source during reverse flow through the aspirator, whereas suction flow may enter a second entraining port coupling a manifold side of the aspirator with the vacuum source, the first entraining port counter sunk relative to a nominal slope of the aspirator to reduce flow disruption caused by the port during forward flow through the aspirator. A radial-flow aspirator shut-off valve arranged in series with the aspirator may be controlled to enable or disable motive flow through the aspirator, and motive flow may enter the valve in a direction perpendicular to a motive flow axis of the aspirator when the valve is open.
    Type: Grant
    Filed: December 1, 2016
    Date of Patent: January 1, 2019
    Assignee: Ford Global Technologies, LLC
    Inventors: Eric Luehrsen, Ross Dykstra Pursifull
  • Patent number: 10161345
    Abstract: Control of airflow in a uniflow-scavenged, two-stroke cycle, opposed-piston engine during transient operation includes monitoring at least one operating parameter of the engine to recognize a transition to a transient state of engine operation. If a transient state of operation is detected, fuel injection and airflow into to the cylinders of the engine are controlled to optimize combustion and limit emissions. Airflow into cylinders of the engine may be controlled by increasing a scavenging ratio of the engine or by increasing a trapping efficiency of the engine.
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: December 25, 2018
    Assignee: ACHATES POWER, INC.
    Inventors: Arunandan Sharma, Nishit Nagar, Suramya D. Naik, Daniel Schum
  • Patent number: 10151276
    Abstract: An exhaust heat recovery system may include an exhaust pipe through which exhaust gas exhausted from an engine moves, a main channel through which a working fluid moves, a turbine rotated by the working fluid exhausted from the main channel to generate energy, an exhaust gas recirculation (EGR) line circulating a portion of the exhaust gas exhausted from the engine to an intake manifold, and channel control valves disposed in the main channel and configured to control movement of the working fluid so that the exhaust gas moving along the EGR line and the working fluid moving along the main channel exchange heat with each other.
    Type: Grant
    Filed: January 11, 2018
    Date of Patent: December 11, 2018
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventor: You Sang Son
  • Patent number: 10145321
    Abstract: An engine system having an exhaust gas recirculation (EGR) apparatus includes: an engine including a plurality of combustion chambers; an intake line through which an intake gas supplied to the combustion chambers flows; an exhaust line in which an exhaust gas discharged from the combustion chambers flows; and a turbocharger including: a turbine disposed at the exhaust line and rotating by the exhaust gas; and a compressor disposed in the intake line and rotating and compressing external air. The EGR apparatus includes a recirculation line branched from the exhaust line; an EGR valve disposed at the recirculation line and adjusting a recirculation gas amount; a pressure sensor disposed at a front end of the EGR valve to measure a pressure of a recirculation gas; and a flow rate adjustment apparatus disposed at a rear end of the EGR valve and adjusting the recirculation gas amount.
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: December 4, 2018
    Assignee: Hyundai Motor Company
    Inventor: Choo Saeng Choi
  • Patent number: 10138800
    Abstract: A system and method for condensation management in a low-pressure loop EGR system are provided. The system includes an EGR condensation temperature module configured to determine an EGR condensation temperature of recirculated exhaust gas upstream of an EGR cooler and an EGR coolant temperature controller communicably coupled to the EGR condensation temperature module. The EGR coolant temperature controller provides EGR coolant to the EGR cooler at or above the EGR condensation temperature. The system also includes a charge air condensation temperature module configured to determine a charge air condensation temperature of charge air upstream of a charge air cooler and a charge air coolant temperature controller communicably coupled to the charge air condensation temperature module. The charge air coolant temperature controller provides charge air coolant to the charge air cooler at or above the charge air condensation temperature.
    Type: Grant
    Filed: April 3, 2015
    Date of Patent: November 27, 2018
    Assignee: Cummins, Inc.
    Inventors: Leon A. LaPointe, Daniel J. Mohr, Edward J. Lyford-Pike, Ashish Gupta
  • Patent number: 10138804
    Abstract: A method of controlling an air intake flow in a rotary engine having primary and secondary inlet ports, including positioning the secondary inlet port rearwardly of the primary inlet port and forwardly of the exhaust port along a direction of a revolution of the rotor, providing independently closable communications between an air source and the primary and secondary inlet ports, and controlling air intake flows between the air source and the primary and secondary inlet ports. Controlling air intake flows includes simultaneously allowing the air intake flow between the primary inlet port and the air source and between the secondary inlet port and the air source. Exhaust gases of the engine are purged with the air intake flow of the secondary inlet port. A rotary engine is also discussed.
    Type: Grant
    Filed: October 26, 2017
    Date of Patent: November 27, 2018
    Assignee: PRATT & WHITNEY CANADA CORP.
    Inventors: Jean Thomassin, Andre Julien, Edwin Schulz, Michael Lanktree
  • Patent number: 10138802
    Abstract: Techniques for learning endstop position(s) of an actuator for a wastegate valve include detecting a learn condition and, in response to detecting the learn condition, performing a learn procedure for the actuator endstop position(s). The learn procedure includes commanding the actuator to a desired position past the endstop position corresponding to a fully-closed wastegate valve while rate-limiting a velocity of the actuator. When the difference reaches its maximum allowed value and the velocity falls below a fraction of its rate limit, the endstop position is learned. When the wastegate valve is requested open, the actuator is then controlled using the learned endstop position. Reference stiffness for a fully-closed wastegate valve could be obtained, and subsequent stiffness checks could then be periodically performed and, if less than the reference stiffness, a duty cycle of the actuator could be increased during open-loop control.
    Type: Grant
    Filed: April 14, 2015
    Date of Patent: November 27, 2018
    Inventors: Ayman Ismail, Brian Rockwell, John R Bucknell, Ethan E Bayer