Patents Examined by James J Kim
  • Method for preventing engine overheat based on coolant temperature and engine system thereof
    Patent number: 11255250
    Abstract: A method for preventing an engine overheat based on a coolant temperature applied to an engine system 1 is provided, in which a controller 50 checks if a coolant coming from an engine 10 is distributed to any one of a heater core 25B and an ATF warmer 25A as a radiator 23 is switched from a distribution blocking state (i.e., radiator closed) at a diagnosis start to a distribution state (i.e., radiator open) during the diagnosis under the control of an opening degree of an ITM valve 40, diagnoses lack of a coolant amount using factors B determined by an inlet/outlet coolant temperature difference T of the engine 10 through first and second water temperature sensors 30A and 30B as a factor cumulative value A, and then controls the ITM valve 40 to a full open state in a state where a coolant temperature increase is predicted.
    Type: Grant
    Filed: November 12, 2020
    Date of Patent: February 22, 2022
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Jae-Sung Chung, Seong-Kyu Park
  • Piston geometry for reduced smoke and cylinder head component temperatures
    Patent number: 11230992
    Abstract: The piston has a contoured combustion bowl with a radially inner shelf portion that is spaced axially away from the radially outer lip portion a first axial distance, and a swirl pocket that extends radially from the radially inner shelf portion and defines a lower axial extremity that is spaced axially away from the radially outer lip portion a second axial distance that is greater than the first axial distance. The swirl pocket defines a tangent extending in the radially outer direction, forming an acute angle with the radially outer lip portion ranging from 70 degrees to 80 degrees.
    Type: Grant
    Filed: April 3, 2020
    Date of Patent: January 25, 2022
    Assignee: Caterpillar Inc.
    Inventors: Eric L. Schroeder, Christopher R. Gehrke, David A. Pierpont
  • Apparatus and method for positioning a connecting rod relative components underlying a cylinder of an engine block
    Patent number: 11224946
    Abstract: An apparatus is provided for positioning a connecting rod relative to one or more components underlying a cylinder of an engine block, in tandem with assembling a cylinder liner to the cylinder of the engine block. The apparatus has a holder mechanism releasably holding a bottom end of the cylinder liner. A portion of the holder mechanism is configured to extend beyond the bottom end of the cylinder liner to define a groove that is disposed parallel to a circumference of the cylinder liner. A link pivotally connects the cylinder liner to the connecting rod. The link includes a first end defining a pin that is slidably engaged with the groove of the holder mechanism and a second end that defines an opening therethrough. The opening facilitates insertion of a fastener for releasably securing the link to a bottom end of the connecting rod.
    Type: Grant
    Filed: June 21, 2019
    Date of Patent: January 18, 2022
    Assignee: Caterpillar Energy Solutions GmbH
    Inventor: Inigo Guisasola
  • Internal combustion engine
    Patent number: 11220940
    Abstract: In an internal combustion engine, an oil separator provided in a blowby gas passage is attached to a side wall of a cylinder block. A first communicating passage and a second communicating passage via which the inside of a crankcase is connected to the oil separator are formed in the cylinder block. An opening of the first communicating passage on the crankcase side and an opening of the second communicating passage on the crankcase side are placed to be distanced from the center of the crankcase in the extending direction of a crankshaft so as to sandwich the center of the crankcase. No passage via which the inside of the crankcase is connected to the oil separator is provided between the first communicating passage and the second communicating passage.
    Type: Grant
    Filed: September 17, 2019
    Date of Patent: January 11, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Masami Ishikawa
  • System and method for injecting an aqueous solution on-board a vehicle
    Patent number: 11215145
    Abstract: A vehicle system includes a tank for storing an aqueous solution; and a UV light decontamination module configured for decontaminating aqueous solution stored in the tank. The UV light decontamination module is arranged in a wall of the tank. The UV light decontamination module includes a light source compartment which is accessible from an external area outside of the tank; and a light transmission member configured to transmit UV light from the light source compartment to a liquid space in fluid communication with aqueous solution stored in the tank. The light source compartment includes a light source to emit UV light through the light transmission member to the liquid space.
    Type: Grant
    Filed: May 4, 2018
    Date of Patent: January 4, 2022
    Assignee: Plastic Omnium Advanced Innovation and Research
    Inventors: Laurent Duez, Arthur Relave-Noiray
  • Aluminum alloy for piston and piston for engine of vehicle
    Patent number: 11203800
    Abstract: An aluminum alloy for a piston may include aluminum (Al) as a base, magnesium (Mg) and zinc (Zn); and wherein the magnesium content is 10-20 wt % with reference to the total weight. In the aluminum alloy, the zinc content is 2.0-6.4 wt % with reference to the total weight. The aluminum alloy further includes copper (Cu) of 1.5-3.5 wt % with reference to the total weight. In the aluminum alloy, T-AlCuMgZn phase is generated.
    Type: Grant
    Filed: November 15, 2019
    Date of Patent: December 21, 2021
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventor: Hee-Sam Kang
  • Oil system and method of controlling oil system
    Patent number: 11199115
    Abstract: The invention relates to an oil system (7) comprising a pump arrangement (11); a first gallery (13) for providing oil to a first engine site (14); a second gallery (15) for providing oil to a second engine site (16); a second gallery flow control device (25) for controlling flow of oil from the pump arrangement (11) to the second gallery (15); control circuitry (5); a first pressure sensor (27) for sensing the oil pressure in the first gallery (13); and a second pressure sensor (29) for sensing the oil pressure in the second gallery (15).
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: December 14, 2021
    Assignee: VOLVO TRUCK CORPORATION
    Inventor: Fabian Hellemann
  • Cylinder head and gas engine
    Patent number: 11187182
    Abstract: A cylinder head includes an intake throat and an intake duct, a valve seat ring is provided in an inner ring of the intake throat; a section of the intake duct is a tumble generating duct; and an extending direction of the tumble generating duct is oblique relative to the cylinder head bottom surface, the lower side surface of the tumble generating duct is a tumble guide surface, the lower end of which forms a tumble generating sharp angle, and the projection of the tumble generating sharp angle on the upper end circular surface of the valve seat ring is a sharp angle projection, the sharp angle projection is a protruding area protruding from the edge of the upper end circular surface of the valve seat ring, and the width of the middle part of the sharp angle projection is larger than the width of both ends thereof.
    Type: Grant
    Filed: April 1, 2021
    Date of Patent: November 30, 2021
    Assignee: WEICHAI POWER CO., LTD.
    Inventors: Xuguang Tan, Dehui Tong, Shun Lv, Wei Li, Shaodong Zhang, Xiaolei Fu
  • Cylinder block
    Patent number: 11187137
    Abstract: A water jacket of a cylinder block includes a main passage and a sub-passage. The main passage is formed along the periphery of a cylinder bank, and extends between a plurality of head bolt bosses and the cylinder bank. The sub-passage is formed at a position spaced from the cylinder bank farther than the main passage, to diverge from the main passage at a first position, and join the main passage at a second position downstream of the first position. A first head bolt boss by which coolant flowing from a coolant inlet initially passes is interposed between the main passage and the sub-passage. The first position is located between the first head bolt boss and the coolant inlet. The second position is located between a second head bolt boss by which the coolant passes next, and the first head bolt boss.
    Type: Grant
    Filed: March 15, 2021
    Date of Patent: November 30, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Hiroshi Tada
  • Gas exchange valve for an internal combustion engine
    Patent number: 11174763
    Abstract: A gas exchange valve for an internal combustion engine may include a valve stem and a wear resistance improving functional layer. The valve stem may extend in an axial direction and may transition into a valve plate in the axial direction. The functional layer may include nickel and tungsten. The functional layer may be arranged in a coating area on an outer circumference of the valve stem and may at least partially define a sliding surface.
    Type: Grant
    Filed: May 15, 2020
    Date of Patent: November 16, 2021
    Inventors: Stephan Koerner, Christoph Luven, Alexander Mueller, Alexander Puck, Reinhard Rose
  • Manufacture of heat transfer jackets
    Patent number: 11168605
    Abstract: Heat transfer jackets with various passage configurations for cooling or heating equipment. For the equipment of interest, one or more regions of maximum heat transfer are identified. For these regions, the cooling jacket is configured with at least one of the following heat transfer passage geometries: impinging jets, curved blades, columns, dimpled interface, organic, or turbulator. The passage geometries are then manufactured using additive manufacturing.
    Type: Grant
    Filed: October 11, 2019
    Date of Patent: November 9, 2021
    Assignee: Southwest Research Institute
    Inventors: Kevin L. Hoag, Christopher L. Wray, Charles E. Roberts, Jr.
  • Breather for an internal combustion engine
    Patent number: 11168595
    Abstract: A breather is provided for an internal combustion engine that is configured to be mounted to provide a compact, space efficient packaging arrangement for the internal combustion engine. The breather includes a housing with a front wall, a rear wall opposite the front wall, and a plurality of sidewalls connecting the front and rear walls. The front wall is configured for attachment to the rearward end of the valve cover.
    Type: Grant
    Filed: January 8, 2020
    Date of Patent: November 9, 2021
    Assignee: Cummins Inc.
    Inventors: Amol Kondhare, David W. Ochs, Vincil A. Varghese
  • Diesel engine, motor vehicle and method for reducing heat transfer to a piston of a cylinder of a diesel engine
    Patent number: 11162410
    Abstract: A diesel engine includes at least one cylinder (1) with a piston (2) having a piston bowl (3). A fuel injector (6) is configured to direct a fuel spray towards a target area (21) on an annular wall section (22) of the piston bowl so as to make a flame (20) formed by ignition of the fuel spray hit the target area. The target area borders, via a flow separation edge (23), on a lowered flow separation area (24) on the annular wall section so as to give this annular wall section a stepped configuration. The flow separation edge and flow separation area are configured to induce the formation of a vortex-filled wake between the flame and the flow separation area on the downstream side of the flow separation edge when the flame flows from the target area, across the flow separation edge and over the flow separation area.
    Type: Grant
    Filed: May 29, 2019
    Date of Patent: November 2, 2021
    Inventors: Anders Jäger, Thomas Hällqvist, Daniel Norling
  • Staggered array arrangement for air/liquid separation
    Patent number: 11162400
    Abstract: A separator system comprises a main separator, and an additional separator including one of a pre-separator, post separator, or line-of-sight baffle. The additional separator separates liquid particles from an air/liquid mixture and comprises an inlet, an air outlet, a liquid outlet, and a plurality of posts disposed between the inlet and the air outlet. The posts are arranged in a staggered array and comprise a convex end portion having an impaction surface, a portion of liquid particles from the air/liquid mixture adhering as a liquid film to the impaction surface, and a hook end portion positioned downstream the convex end portion and including hooks having an end and a collection pocket disposed between the impaction surface and the end. The collection pocket collects the portion of liquid particles adhered as the liquid film to the impaction surface.
    Type: Grant
    Filed: August 26, 2019
    Date of Patent: November 2, 2021
    Assignee: Cummins Filtration IP, Inc.
    Inventors: Navin Surana, Vijay Kolhe, Shantanu Sanjay Ghatnekar
  • Oil lubrication structure of transmission device
    Patent number: 11149600
    Abstract: In the oil lubrication structure that supplies lubricating oil to the transmission device, the oil lubrication structure includes an oil passage formed above a transmission device. The oil passage is formed by an oil groove portion and a plate member. The oil groove portion is integrally formed in a crankcase. The plate member is arranged in the crankcase so as to cover the oil groove portion. The plate member has oil dripping holes formed therein, and the oil dripping holes are opened at positions directly above the transmission device.
    Type: Grant
    Filed: October 18, 2018
    Date of Patent: October 19, 2021
    Inventor: Masaki Mori
  • Weak tumble flow fast combustion system and gas engine
    Patent number: 11149680
    Abstract: A weak tumble flow fast combustion system is provided. An intake throat and an exhaust throat are provided on a cylinder head, a section of an intake duct close to the intake throat is a tumble guide duct, an axis of the tumble guide duct is arranged obliquely with respect to the bottom surface of the cylinder head, and an upper side surface of the tumble guide duct is a flowing-down guide surface arranged obliquely with respect to the bottom surface of the cylinder head, a lower side surface of the tumble guide duct is an arc-shaped guide surface recessed toward the bottom surface of the cylinder head, an eccentric chamfer is provided at the lower end of the intake throat, and the eccentric direction of the eccentric chamfer is offset along the direction connecting the center of the intake throat to the exhaust throat.
    Type: Grant
    Filed: March 8, 2021
    Date of Patent: October 19, 2021
    Assignee: WEICHAI POWER CO., LTD.
    Inventors: Wei Li, Shun Lv, Jie Pan, Yungang Li, Yongliang Gao, Tao Liu
  • Oil drain system for a generator engine
    Patent number: 11149630
    Abstract: A standby generator having an engine with oil drain tube that facilitates removal of engine oil from the standby generator is disclosed. The standby generator includes an enclosure comprising a plurality of sidewalls, with an opening formed in one of the sidewalls, and an engine positioned within the enclosure. The engine further includes an oil drain and an oil drain tube having a first end coupled to the oil drain and a second end that opens and closes to selectively drain oil from the engine, the oil drain tube being positionable so as to extend out through the opening. The opening in the one of the sidewalls is lower than the oil drain, such that the oil drain tube is positioned with a downward angle when extending from the oil drain and out of the enclosure through the opening.
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: October 19, 2021
    Assignee: Champion Power Equipment, Inc.
    Inventors: Mark J. Sarder, Russell J. Dopke, Hiroaki Sato, Leigh A. Jenison
  • Cobra head air intake ports
    Patent number: 11143149
    Abstract: The present disclosure provides air intake ports and/or intake manifolds having an altered configuration to improve the efficiency of the air intake ports, intake manifolds, and by extension, the engine.
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: October 12, 2021
    Assignee: Cummins Inc.
    Inventors: Robert G. Sperry, Terry D. Partridge, Steven L. Leffler, Kartikeya Tyagi, Amit A. Kulkarni, Pallav Jha
  • Gas inlet device with intersection of the inlet duct and the valve calibration inclined with respect to the fire face
    Patent number: 11143094
    Abstract: The present invention relates to a gas intake device (1) for a cylinder of an internal-combustion engine. Gas intake device (1) comprises an intake pipe (2), an intake valve (3), a calibration part (4) for intake valve (3), and means for generating an aerodynamic motion of the gas in the cylinder about an axis substantially perpendicular to the axis of said cylinder. Furthermore, intersection (7) between intake pipe (2) and calibration part (4) occurs in a line nonparallel to the plane of fire face (FF).
    Type: Grant
    Filed: March 20, 2019
    Date of Patent: October 12, 2021
    Assignee: IFP Energies nouvelles
    Inventors: Xavier Gautrot, Julien Trost, Martin Ritter, Christophe Lechard
  • Cooling system of internal combustion engine
    Patent number: 11131232
    Abstract: A cooling system of an internal combustion engine includes a control valve that regulates the flow of a coolant in a circulation circuit, and an electronic control unit. The electronic control unit is configured to have the following functions: controlling the driving of a motor of the control valve; calculating a motor torque based on an effective voltage applied to the motor; calculating a valve body torque that is part of the motor torque, based on an angular acceleration rate of the motor; and calculating a driving stress based on a difference between the motor torque and the valve body torque.
    Type: Grant
    Filed: December 3, 2019
    Date of Patent: September 28, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Yoshihiro Furuya