Patents Examined by Phutthiwat Wongwian
  • Patent number: 10982588
    Abstract: A cavity includes a lower-side cavity, an upper-side cavity, a first lip and a second lip. The upper-side cavity has a guide curved surface which extends along a circumference of a first imaginary circle in a section along a cylinder-axis direction, and the first lip has a curved surface which extends along a circumference of a second imaginary circle in a section along the cylinder-axis direction. An angle X which a cylinder axis makes with a common tangential line of the first imaginary circle and the second imaginary circle is set as 75°<X<80°. The guide curved surface is configured such that an angle Y of this guide curved surface which occupies at the circumference of the first imaginary circle is set as 80°<Y<(180°?X).
    Type: Grant
    Filed: January 10, 2020
    Date of Patent: April 20, 2021
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Sangkyu Kim, Takashi Sumimoto, Shintaro Okada, Daisuke Shimo, Shuji Takuma
  • Patent number: 10975783
    Abstract: A method for controlling exhaust gas emission of a motor vehicle may include determining when the motor vehicle drives into a low-emission zone, wherein the low-emission zone dictates a maximum emission level for the motor vehicle; reducing actual accelerator actuation signals of the motor vehicle to effective accelerator actuation signals within the low-emission zone; and trimming an actual intake temperature of the motor vehicle, being measured with an intake temperature sensor of the motor vehicle, to an effective intake temperature when the actual intake temperature falls outside a predetermined temperature range within the low-emission zone; wherein at least one of the effective accelerator signals and the effective intake temperature are used as inputs for controlling an exhaust gas recirculation (EGR) subsystem of the motor vehicle.
    Type: Grant
    Filed: August 5, 2019
    Date of Patent: April 13, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Daniele Vacca, Raffaele Farina
  • Patent number: 10968871
    Abstract: An engine system may include an engine including a plurality of intake lines through which outside air supplied to combustion chamber flows, a first electric supercharger and a second electric supercharger disposed respectively in the plurality of intake lines, a first exhaust gas recirculation (EGR) device including a first EGR line branched from an exhaust manifold and joining an intake manifold and a first EGR valve disposed in the first EGR line, and a controller determining an engine target torque according to a driving condition of the engine, setting an engine torque within an operation region of the first EGR device when the engine target torque is in a torque dead band between the operation region of the first EGR device and a non-operation region thereof, and compensating a difference value between the engine target torque and the engine torque by a hybrid electric vehicle (HEV) motor.
    Type: Grant
    Filed: July 22, 2019
    Date of Patent: April 6, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Seungwoo Hong, Jong Il Park, Heechang Oh, Kwanhee Lee, Jaegu Kang, Dong Hee Han, Yeongseop Park
  • Patent number: 10968838
    Abstract: An engine speed control device performing: a first PID gain calculation step of calculating a target engine speed to thereby calculate a first PID gain based on an engine speed deviation between the target engine speed and an engine speed; a target rack position calculation step of correcting the first PID gain based on a cooling water temperature to thereby calculate a target rack position of a fuel injection pump; a second PID gain calculation step of calculating a second PID gain based on a rack position deviation between the target rack position and a rack position; and a rack control signal producing step of correcting the second PID gain based on a lubricating oil temperature to thereby produce a rack control signal. The engine speed control device thus controls an engine speed by controlling the rack position based on the rack control signal.
    Type: Grant
    Filed: March 26, 2018
    Date of Patent: April 6, 2021
    Assignee: YANMAR POWER TECHNOLOGY CO., LTD.
    Inventors: Ryosuke Shimomura, Ryota Iwano, Tomoaki Morita
  • Patent number: 10968795
    Abstract: Methods and systems are provided for a lubricant detection device. In one example, a system comprises one or more sensors arranged in an oil flow path for detecting if a particle is in an oil flow. Engine operating parameters are adjusted in response to sensing the particle, wherein the engine operating parameter adjustments are different in response to only a first sensor detecting the particle or to both the first sensor and a second sensor detecting the particle.
    Type: Grant
    Filed: April 9, 2019
    Date of Patent: April 6, 2021
    Assignee: Ford Global Technologies, LLC
    Inventor: Reid Worthen
  • Patent number: 10968782
    Abstract: A gas turbine engine, having an engine central longitudinal axis, includes at least one of a vane support, a vane stage, a blade outer air seal support, and a blade outer air seal. At least one of the vane support, the vane stage, the blade outer air seal support, and the blade outer air seal is rotatable about the engine central longitudinal axis. The gas turbine engine may further include a drive system configured to rotate at least one of the vane support, the vane stage, the blade outer air seal support, and the blade outer air seal about the engine central longitudinal axis.
    Type: Grant
    Filed: January 18, 2017
    Date of Patent: April 6, 2021
    Assignee: RAYTHEON TECHNOLOGIES CORPORATION
    Inventors: Brandon W. Spangler, Michael G. McCaffrey
  • Patent number: 10962131
    Abstract: A fill limit vent valve includes a float valve, a housing, and a lid. The housing includes a cylindrical outer wall and a tubular portion. The outer wall has a central axis. The tubular portion accommodates the float valve. The lid is placed on the upper end of the tubular portion and has a communicating opening. The housing includes a fuel passage that has an inlet and a discharge port. The discharge port is connected to the communicating opening. A section of the tubular portion that faces the fuel passage is constituted by a curved surface. A guide wall that has at least one guide surface is provided between the fuel passage and the inlet. A straight line on the curved surface that is parallel with the central axis is defined as a generatrix. The guide surface extends along the curved surface while being inclined relative to the generatrix.
    Type: Grant
    Filed: August 27, 2019
    Date of Patent: March 30, 2021
    Assignee: TOYODA GOSEI CO., LTD.
    Inventors: Kenta Kuwayama, Caleb Bauer, Steven Yurgalonis, Pierre Grypinich
  • Patent number: 10961942
    Abstract: Systems and methods for estimating an engine event location are disclosed herein. In one embodiment, a control system is configured to receive feedback from at least one knock sensor coupled to a reciprocating engine, estimate an engine parameter based at least on the feedback and an Empirical Transform Function (ETF), estimate a location of an engine event based on the engine parameter, and adjust operation of the reciprocating engine based at least on the location of the engine event.
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: March 30, 2021
    Assignee: AI ALPINE US BIDCO INC
    Inventors: Marco Guerriero, Jeffrey Jacob Bizub, Brett Alexander Matthews
  • Patent number: 10961946
    Abstract: An engine system includes a combustion chamber including a cylinder, a fuel supply that supplies fuel including gasoline into the combustion chamber, circuitry configured to predict a knock will occur in the combustion chamber, and a fluid injector that injects a fluid into the combustion chamber. Further, there is circuitry configured to suppress a knock by instructing the fluid injector, when the knock is predicted to occur by the circuitry configured to predict, to inject the fluid into the combustion chamber within a period before a burned mass fraction reaches 50% after a start of combustion.
    Type: Grant
    Filed: January 22, 2019
    Date of Patent: March 30, 2021
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Kouji Shishime, Takashi Kohata, Yuichiro Tsumura, Daisuke Tanaka, Taiki Maiguma
  • Patent number: 10961955
    Abstract: An air intake apparatus for an internal combustion engine, the air intake apparatus includes: an air intake apparatus main body portion introducing air into a cylinder; a port portion provided integrally with a downstream side end portion of the air intake apparatus main body portion and inserted into an air intake port in a cylinder head; an air intake passage formed inside the air intake apparatus main body portion and the port portion, and through which an air-fuel mixture containing air and fuel flows; an injector provided in the air intake apparatus main body portion and introducing the fuel into the air intake passage; and a heater heating the fuel introduced by the injector. The injector is disposed at a position where the fuel is capable of being injected into the heater.
    Type: Grant
    Filed: November 25, 2019
    Date of Patent: March 30, 2021
    Assignee: AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Masato Ishii, Tomohiro Yamaguchi, Hideto Yano
  • Patent number: 10961925
    Abstract: Various embodiments include a method for starting an internal combustion engine comprising: in a first phase after a starting process, setting a throttle valve to a value near to zero so the pressure in the intake tract is lowered below the ambient pressure and injecting a fuel into the intake tract above a rich combustion limit at which the fuel/air mixture would still just be combustible; in a second phase, reducing the fuel mass as a function of the pressure; in a third phase shorter than the second phase, further reducing the fuel mass and increasing the opening of the throttle valve to increase the pressure in the intake tract; and in a fourth phase, increasing the fuel mass as a function of rising pressure in the intake tract.
    Type: Grant
    Filed: August 7, 2017
    Date of Patent: March 30, 2021
    Assignee: VITESCO TECHNOLOGIES GMBH
    Inventor: Reiner Otto Beckmann
  • Patent number: 10961929
    Abstract: A method for a combustion motor that is initially used in a full Miller cycle or full Atkinson cycle that is advantageous with regard to efficiency. In full operation, a switchover to a partial operation takes place, wherein the intake valves associated with the combustion chambers that are to continue to be operated are switched over to actuation in accordance with a second valve lifting curve in order to achieve a switchover that is as torque-neutral as possible and is optimal with regard to efficiency. The closing time of the intake valve brought about by this second valve lifting curve is designed with respect to maximum volumetric efficiency.
    Type: Grant
    Filed: October 11, 2019
    Date of Patent: March 30, 2021
    Assignee: Volkswagen Aktiengesellschaft
    Inventor: Christopher Gessenhardt
  • Patent number: 10954898
    Abstract: A system for connecting housing elements of a device for heat transfer having a housing with a first housing element and a second housing element which are connectable with one another with face sides oriented toward one another and via a connection under form closure. Housing elements are herein in contact on another with side margins developed in proximity of front faces. The first latching elements are implemented as recesses each with a flat surface oriented in parallel to front face. On an outer side of side margin of first housing element between each first latching element and front face, a shaping is developed protruding from side margin, which comprises on a side facing first latching element a flat surface disposed in the plane spanned by flat surface of first latching element. Flat surfaces of first latching element and the shaping form a contiguous bearing area for second latching element.
    Type: Grant
    Filed: April 5, 2019
    Date of Patent: March 23, 2021
    Assignee: Hanon Systems
    Inventors: Hynek Hruza, Jan Gregus-Kollar, Karel Krajca
  • Patent number: 10954874
    Abstract: Systems and methods for determining operation of a cylinder deactivating/reactivating device are disclosed. In one example, a direction of engine rotation is selected to maximize air flow through the engine while the engine is rotated without combusting air and fuel. Operation of one or more cylinder valve deactivating mechanisms is assessed while the engine is rotated without combusting air and fuel.
    Type: Grant
    Filed: February 9, 2018
    Date of Patent: March 23, 2021
    Assignee: Ford Global Technologies, LLC
    Inventor: Aed M. Dudar
  • Patent number: 10954896
    Abstract: A canister includes a charge port, a purge port, an atmosphere port, a main chamber, a sub chamber, activated carbon, and additional activated carbon. The sub chamber communicates with the main chamber. The atmosphere port is connected to the sub chamber directly or via an additional chamber. The activated carbon is stored in a main volume (Vmain) in the main chamber. The additional activated carbon is stored in a sub volume (Vsub) in the sub chamber. A ratio of a length L in a gas flow direction to an equivalent diameter D in a section perpendicular to the gas flow direction is 2 or more for the sub chamber. A ratio of a volume of the activated carbon stored in the main chamber to a volume of the activated carbon stored in the sub chamber (Vmain/Vsub) is more than 7 and equal to or less than 10.
    Type: Grant
    Filed: January 16, 2020
    Date of Patent: March 23, 2021
    Assignee: FUTABA INDUSTRIAL CO., LTD.
    Inventor: Kyohei Yamaguchi
  • Patent number: 10954902
    Abstract: An internal combustion engine includes a cylinder block including a cylinder, a cylinder head including an intake port, the intake port communicating with the cylinder, an intake manifold fixed to the cylinder head, the intake manifold being configured to supply intake air into the cylinder, and a dynamic vibration absorber configured to suppress vibration of the intake manifold. A direction that is orthogonal to both a central axis of the cylinder and a rotational axis of a crankshaft of the internal combustion engine is defined as a width direction. The dynamic vibration absorber is attached to the intake manifold on an opposite side of a center of gravity of the intake manifold from the cylinder head in the width direction.
    Type: Grant
    Filed: October 29, 2019
    Date of Patent: March 23, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yoshitomo Mizuta, Masaya Tagawa, Kenta Takatani, Keisuke Hayakawa
  • Patent number: 10954908
    Abstract: Disclosed is a method for managing the starting of a combustion engine of a hybrid drive system including a combustion engine and an electric machine, as well as a drive shaft, the electric machine producing torque to start the combustion engine and drive the drive shaft at least during an initial phase of the start. In a transient starting phase, the combustion engine drives the drive shaft and the electric machine is stopped. The electric machine is regulated, during the initial phase and transient phases, with a first engine speed setpoint. The transient phase begins when the drive shaft reaches the first engine speed setpoint and remains steady. Torque control produced by the electric machine during the transient starting phase being configured so that the electric machine is stopped as soon as the control determines that the torque produced by the electric machine is tending toward zero torque.
    Type: Grant
    Filed: December 12, 2017
    Date of Patent: March 23, 2021
    Assignees: CONTINENTAL AUTOMOTIVE FRANCE, CONTINENTAL AUTOMOTIVE GMBH
    Inventors: Damien Verdier, Yannis Guillot, Jerome Lachaize
  • Patent number: 10947884
    Abstract: The present invention is provided with: a SOx purge control unit that executes catalyst regeneration processing that maintains the temperature of a NOx occlusion/reduction catalyst at a prescribed recovery temperature; a catalyst temperature estimation unit that estimates catalyst temperature on the basis of the amount of unburnt fuel contained in exhaust and of a catalyst heat generation amount; a second exhaust temperature sensor that is arranged further to an exhaust downstream side than the catalyst and that detects exhaust temperature; and a heat generation amount correction value setting unit that, during the execution of the catalyst regeneration processing, on the basis of an estimated catalyst temperature estimated by the catalyst temperature estimation unit and of an actual exhaust temperature detected by the second exhaust temperature sensor, obtains a heat generation amount correction value that is used to correct the heat generation amount of the catalyst.
    Type: Grant
    Filed: March 23, 2016
    Date of Patent: March 16, 2021
    Assignee: ISUZU MOTORS LIMITED
    Inventors: Teruo Nakada, Takayuki Sakamoto, Daiji Nagaoka
  • Patent number: 10941735
    Abstract: Methods and systems are provided for adjusting an EGR valve operation based on results from an EGR valve diagnostic. In one example, a method may include executing the EGR valve diagnostic during an engine deactivation, wherein the EGR valve diagnostic estimates an EGR valve stickiness used to adjust the EGR valve operation.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: March 9, 2021
    Assignee: Ford Global Technologies, LLC
    Inventors: Ian Halleron, Zoltan Szilagyi, Jon Dixon
  • Patent number: 10934948
    Abstract: A method for determining failure of an electromechanically actuated gas shut off valve includes sensing and recording a gas fuel rail pressure and a boost pressure from an air intake manifold at a first time after the dual fuel engine has been started. The method includes opening the gas shut off valve at a second time, holding the gas shut off valve in its open state, and then closing the gas shut off valve after a predetermined interval at a third time. The method includes comparing an actual gas rail pressure decay rate to a threshold gas rail pressure decay rate for the predetermined interval, and determining failure of the gas shut off valve when the actual gas rail pressure decay rate is less than the threshold gas rail pressure decay rate. Upon determining failure of the gas shut off valve, the method also includes initiating a mitigating action.
    Type: Grant
    Filed: February 5, 2018
    Date of Patent: March 2, 2021
    Assignee: Caterpillar Inc.
    Inventors: Matthew J. Engfehr, Nathan P. Atterberry, Hua Xu