Patents Examined by Jorge L Leon, Jr.
  • Patent number: 12037929
    Abstract: A switching roller finger follower (SRFF) for valve actuation includes an outer arm (16), a first inner arm (12), a bearing axle (50) and a latch pin (26). The outer arm (16) is formed of a metal stamping, and is pivotally coupled to a main axle (40). The first inner arm (12) is coupled to the main axle (40) and is pivotably secure to the outer arm. The bearing axle (50) extends through the outer arm and the first inner arm. The bearing axle supports a roller (20) thereon. The latch pin (26) is slidably disposed in the outer arm (16) and is movable between at least a first position where the outer arm (16) and the first inner arm (12) are coupled for concurrent rotation and a second position wherein one of the outer arm and the first inner arm are configured to rotate relative to the other arm.
    Type: Grant
    Filed: May 22, 2020
    Date of Patent: July 16, 2024
    Assignee: Eaton Intelligent Power Limited
    Inventors: Emanuele Raimondi, Massimo D'Amore, Jeffrey R. Brown, Ramy Rezkalla, Matthew A. Vance, Andrei D. Radulescu, Brandon J. Elliott
  • Patent number: 12031465
    Abstract: An exhaust gas purification device includes a substrate including an upstream end and a downstream end, the substrate having a length Ls between the upstream end and the downstream end; a first catalyst layer containing first catalyst particles, extending across a first region, and being in contact with the substrate, the first region extending between the upstream end and a first position, the first position being at a first distance La from the upstream end toward the downstream end; and a second catalyst layer containing second catalyst particles, extending across a second region, and being in contact with the substrate, the second region extending between the downstream end and a second position, the second position being at a second distance Lb from the downstream end toward the upstream end. The first catalyst layer has an inner surface defining macropores.
    Type: Grant
    Filed: September 28, 2021
    Date of Patent: July 9, 2024
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, CATALER CORPORATION
    Inventors: Isao Chinzei, Takumi Tojo, Masahide Miura, Nobusuke Kabashima, Minoru Ito, Naoto Fujita
  • Patent number: 12031462
    Abstract: An exhaust rocker assembly for operating an exhaust valve of an engine during a compression-release engine braking operation. The exhaust rocker assembly comprises an exhaust rocker arm and a self-contained compression brake control module (CBCM) mounted to the exhaust rocker arm and operatively coupled to the exhaust valve for controlling a lift and a phase angle thereof. The CBCM includes a casing, an actuation piston disposed outside the casing so as to define an actuation piston cavity, a reset check valve provided between the casing and the actuation piston, and a compression brake actuator disposed in the casing. The actuation piston reciprocates relative to the casing. The compression brake actuator includes a control piston. The control piston engages the check valve when deactivated so as to unlock the actuation piston cavity and disengages from the check valve when activated so as to lock the actuation piston cavity.
    Type: Grant
    Filed: June 20, 2023
    Date of Patent: July 9, 2024
    Assignee: Pacbrake Company
    Inventors: Kody Taylor, Peter Stec
  • Patent number: 12025045
    Abstract: An exhaust gas system for an internal combustion engine includes at least one component which delimits an exhaust gas flow volume via an outer wall and, on an inner side of the outer wall which faces the exhaust gas flow volume, supports at least one shielding element. An intermediate space is formed between the outer wall and the shielding element. At least one connecting molding on the shielding element is directed toward the outer wall and is connected fixedly to the outer wall.
    Type: Grant
    Filed: August 17, 2022
    Date of Patent: July 2, 2024
    Assignee: Purem GmbH
    Inventors: Wolfgang Datz, Ralph Kanzleiter
  • Patent number: 12025037
    Abstract: A bidirectional latch pin assembly can comprise a housing portion comprising a latch port. A latch pin in the latch port can comprise a stepped nose extending from a body portion. The stepped nose can comprise a first step and a second step. A spring can be biased against a guide mounted in the latch port and the spring can be configured to bias the latch pin to a first position extending the first step out of the latch port. A first actuation assembly can be configured to move the latch pin to a second position extending the first step and the second step out of the latch port. A second actuation assembly can be configured to move the latch pin to a third position pulling the first step and the second step into the latch port. A switchable rocker arm and a valvetrain assembly can be formed therewith.
    Type: Grant
    Filed: March 7, 2022
    Date of Patent: July 2, 2024
    Assignee: Eaton Intelligent Power Limited
    Inventors: Emanuele Raimondi, Nicola Andrisani
  • Patent number: 12025035
    Abstract: A variable valve device can change valve operations of a cylinder head in which a cam chain is disposed at a center in a predetermined direction where cylinders are arranged and spark plugs are arranged by recessing outer walls on both sides in the direction in a concave shape. The device includes, for each cylinder, a rocker shaft extending along the direction, rocker arms supported by the rocker shaft, a connecting pin disposed in a pin hole of one of the rocker arms, a return pin disposed in a pin hole of the other of the rocker arms, a pressing member that causes the connecting pin to push the return pin, and a repulsive member that causes the return pin to push back the connecting pin, and the pins and the members are separated from the plug in a direction orthogonal to the direction in a plan view.
    Type: Grant
    Filed: September 1, 2023
    Date of Patent: July 2, 2024
    Assignee: SUZUKI MOTOR CORPORATION
    Inventor: Hisashi Ozeki
  • Patent number: 12018597
    Abstract: An anti-rotation bracket for an internal combustion engine, including a peripheral wall having formed therein four outer apertures formed proximate to four corners of the bracket and a groove formed in a lower surface of the bracket, the groove forming a contiguous depression around the lower surface of the bracket and passing between each outer bolt aperture and a center of the bracket. The bracket further includes two tappet structures comprising tappet apertures, the tappet structures being centered inward from the peripheral wall, and an inner aperture positioned inward from the peripheral wall.
    Type: Grant
    Filed: August 25, 2023
    Date of Patent: June 25, 2024
    Assignee: 1F Performance, Inc
    Inventors: Douglas Meeker, Kevin Alley
  • Patent number: 12018599
    Abstract: A system for actuating at least two engine valves comprises a first rocker assembly operatively connected to a first valve actuation motion source and to a first engine valve. The first rocker assembly comprises a first lost motion component arranged in series with a first input rocker and a first output rocker. A second rocker assembly is operatively connected to a second valve actuation motion source and to a second engine valve. The second rocker assembly comprises at least one second rocker. The system further comprises a one-way coupling mechanism disposed between the first output rocker and the at least one second rocker such that second valve actuation motions are transferred from the at least one second rocker to the first output rocker, and first valve actuation motions are not transferred from the first output rocker to the at least one second rocker.
    Type: Grant
    Filed: December 14, 2023
    Date of Patent: June 25, 2024
    Assignee: JACOBS VEHICLE SYSTEMS, INC.
    Inventors: Matei Alexandru, John Mandell, Tyler Hines, Justin D. Baltrucki, Gabriel S. Roberts, Bruce A. Swanbon, Robb Janak, G. Michael Gron, Jr., Marc B. Silva, Austen P. Metsack
  • Patent number: 12006851
    Abstract: A pressure fluid handling system includes a closed pressure fluid circuit. The pressure fluid circuit includes, connected in series, a compressor and a pressure sink and a primary pressure fluid route from the compressor to the pressure sink and a secondary pressure fluid route from the pressure sink to the compressor. The pressure fluid handling system further includes a pressure fluid accumulator connected to the pressure fluid circuit via a first pressure fluid accumulator conduit. The first pressure fluid accumulator conduit includes a pump configured to pump pressure fluid from the pressure fluid circuit to the pressure fluid accumulator to lower the pressure levels in the pressure fluid circuit, and in that the pressure fluid handling system includes a controllable component for returning the pressure fluid from the pressure fluid accumulator to the pressure fluid circuit to increase the pressure levels in the pressure fluid circuit.
    Type: Grant
    Filed: February 25, 2020
    Date of Patent: June 11, 2024
    Assignee: FREEVALVE AB
    Inventors: Urban Carlson, Rowhan Toi Neilson
  • Patent number: 12000314
    Abstract: A variable valve timing assembly for a combustion engine comprises: a phaser configured to receive therein a camshaft; wherein the phaser includes a phaser exterior body that is cylindrical-shaped, a phaser interior body that is cylindrical-shaped and within the phaser exterior body, a phaser exterior spline on an exterior of the phaser exterior body, and a phaser interior spline on an exterior of the phaser interior body; a phaser inner housing disposed within the phaser and configured to receive therein the camshaft; wherein the phaser inner housing includes an inner housing interior spline that mates with the phaser interior spline; an advancing chamber configured to receive fluid from and discharge fluid to the camshaft; a retarding chamber configured to receive fluid from and discharge fluid to the camshaft; and a main housing that encloses therein the phaser and the phaser inner housing, and is configured to engage a timing chain/belt.
    Type: Grant
    Filed: September 7, 2023
    Date of Patent: June 4, 2024
    Inventor: Jay Tran
  • Patent number: 12000349
    Abstract: To provide a control device capable of calculating a cam phase equal to an actual cam angle even when a corresponding cam angle signal detection range is exceeded by changing a cam phase by a variable valve mechanism. In addition to the conventional cam angle measuring function, a cam angle measuring means for advancing or retarding beyond a cam angle measurement reference position, and a means for determining that the cam angle signal advances or retards beyond the cam angle measurement reference position are provided. By switching the cam angle measuring function according to a determination result as to whether the cam angle signal exceeds the cam angle measurement reference position, it is possible to improve the time resolution of the angle measurement while maintaining the cam phase change amount at the same wide angle as the conventional one.
    Type: Grant
    Filed: February 5, 2021
    Date of Patent: June 4, 2024
    Assignee: Hitachi Astemo, Ltd.
    Inventors: Kotaro Oki, Osamu Mukaihara
  • Patent number: 11994042
    Abstract: A piston engine described allows identical cylinder heads rather than requiring mirror image left and right heads. The engine has front and rear sides, with engine block containing two opposing cylinder banks. Identical heads mounted on block, with overhead camshaft structures in each head. Crankshaft between banks has front and rear gears. At rear is reverse-rotation gear mechanism with internal and external gears. External gear engages crankshaft's rear gear. First chain connects reverse-rotation internal gear to first camshaft sprocket on one head at rear. Second chain connects crankshaft's front gear to second camshaft sprocket on other head at front. Allows driving overhead camshafts of identical heads rather than requiring left and right mirror image heads.
    Type: Grant
    Filed: August 22, 2023
    Date of Patent: May 28, 2024
    Assignee: Neutron Engines LLC
    Inventor: Craig Williams
  • Patent number: 11982244
    Abstract: This disclosure relates generally to emissions treatment devices including aftertreatment devices that may be utilized with internal combustion engines and, more particularly, to methods and systems for controlling in-cylinder dosing (ICD) and preventing fuel to oil dilution. A method of operating an engine converting an amount of heat needed for regenerating an aftertreatment device into a cam-stroke fueling strategy. The method further includes determining a number of the engine's cylinders to be active cylinders for introducing dosing fuel and calculating a total dosing fuel apportionment of the dosing fuel for each of the active cylinders based on the cam-stroke fueling strategy. A number of dosing shots per injector for each of the active cylinders can be calculated based on the total dosing fuel apportionment and an amount of dosing fuel is apportioned for each dosing shot according to the cam-stroke fueling strategy.
    Type: Grant
    Filed: December 16, 2022
    Date of Patent: May 14, 2024
    Assignee: Caterpillar Inc.
    Inventors: Michael Edward Sattler, Daniel Reese Puckett
  • Patent number: 11976578
    Abstract: The present disclosure provide a driving device for a composite engine valve of a dedicated driving cam. The driving device includes a valve bridge, a dedicated driving cam, a driver, and a driving oil circuit. The driving oil circuit is configured to be intermittently in communication with a main piston hole and an auxiliary piston hole through a closure and disconnection of the driving oil circuit. The driver is fixedly mounted on a rocker arm shaft, which is simple in structure and low in cost. No motion friction between the driver and the rocker arm shaft, and the dedicated driving cam separating from the main piston when the driver is not in operation effectively reduce wear and noise between the dedicated driving cam and the main piston and improve engine power utilization. When the driver is in operation, the dedicated driving cam automatically adjusts a driving valve through a hydraulic gap, and a driving lift is not affected by an initial gap setting.
    Type: Grant
    Filed: October 13, 2023
    Date of Patent: May 7, 2024
    Assignee: JIANGSU JOINTEK PRECISION MACHINERY CO., LTD.
    Inventor: Lap Lam Chui
  • Patent number: 11970959
    Abstract: The embodiments of the present disclosure provide a valve actuator for a specialized stationary two-piston hydraulic engine, including a specialized drive cam, an actuator, an oil drive line, and a control valve. A hydraulic linkage is maintained between a primary piston and a secondary piston when the control valve is open, and the oil drive line is drained through the control valve when the control valve is closed. In the present disclosure, by integrating the primary piston and the secondary piston in a specialized actuator, oil consumption is reduced, and with a design of the specialized drive cam, an optimized design of the valve actuator that operates independently of a positive valve mechanism is realized, thus reducing interference and influence of the valve actuator on an operation of the positive valve mechanism.
    Type: Grant
    Filed: October 12, 2023
    Date of Patent: April 30, 2024
    Assignee: JIANGSU JOINTEK PRECISION MACHINERY CO., LTD.
    Inventor: Huaxue Tang
  • Patent number: 11965448
    Abstract: A catalyst device includes a catalyst, a heating element, and a case. A direction in which exhaust gas flows through an exhaust passage is defined as a gas discharging direction. The case includes an end portion on an upstream side in the gas discharging direction. The heating element includes an end on an upstream side in the gas discharging direction. The end portion of the case is an insulating portion that insulates electricity and protrudes toward an upstream side of the end of the heating element in the gas discharging direction. The catalyst device further includes an outer tube that is separated from the end portion of the case in a radial direction to cover the end portion. The outer tube is formed by a turbine housing that houses a turbine wheel of the forced-induction device.
    Type: Grant
    Filed: June 6, 2023
    Date of Patent: April 23, 2024
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Toshinori Oki, Tatsuo Iida, Takahiro Sadamitsu
  • Patent number: 11959413
    Abstract: An exhaust gas turbocharger with an integrated catalyst substrate block and a hybrid vehicle having such a turbocharger are described. The exhaust gas turbocharger has a turbine housing, a turbine wheel and upstream ahead of the turbine wheel a hollow body-shaped catalyst substrate block, which is integrated in the exhaust gas ring duct of the turbine housing of the exhaust gas turbocharger. As a result of the upstream disposal of the turbine wheel and the integration in the exhaust gas ring duct of the turbine housing, particularly good emission values of an associated internal combustion engine can be achieved with a compact construction mode.
    Type: Grant
    Filed: November 24, 2021
    Date of Patent: April 16, 2024
    Assignee: VITESCO TECHNOLOGIES GMBH
    Inventors: Sasa Slavic, Jan Ehrhard
  • Patent number: 11952939
    Abstract: The valve closing control is performed to close the waist gate valve of the turbocharger when the hydraulic fluid temperature is less than the temperature threshold. By closing the waist gate valve, the output torque is increased by increasing the amount of air taken into the engine that is idling operation, to suppress the engine stall that may occur when switching from the non-driving range to the driving range.
    Type: Grant
    Filed: October 20, 2022
    Date of Patent: April 9, 2024
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Hiroaki Mizoguchi
  • Patent number: 11933199
    Abstract: A switchable finger follower for a valve train of an internal combustion engine includes an outer and an inner lever, which at a first longitudinal end run pivotably relative to one another via respective bores on a common shaft. At this longitudinal end, the finger follower has a gas-exchange valve contact face on an underside. The outer lever has a pivot bearing on the underside at a further longitudinal end, and at least the inner lever has a cam running face on an upper side. The inner and outer levers are connectable to one another via at least one coupling slide, which spans a separation area between the levers. The outer and inner levers are braced relative to one another via a cam return spring, and the shaft is connected to the bore of the outer lever by an interference fit.
    Type: Grant
    Filed: August 10, 2021
    Date of Patent: March 19, 2024
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Andreas Biermann, Rainer Schwinn, Adrian Bilan, Brian Koop, Jinhwan Jeon, Frank Himsel
  • Patent number: 11933203
    Abstract: A lost motion mechanism can comprise a castellation device, comprising a casing, an upper castellation, and a lower castellation. The casing can comprise a first linear slot and a second linear slot perpendicular to the first linear slot. Upper castellation can comprise an upper body, spaced upper teeth extending from the upper body, the spaced upper teeth forming spaced upper gaps therebetween, and an actuation peg extending from the upper body into the first linear slot. Lower castellation can comprise a lower body, spaced lower teeth extending from the lower body, the spaced lower teeth forming spaced lower gaps therebetween, and an anti-rotation peg extending from the lower body into the second linear slot. An actuator can be configured with the lost motion mechanism so that a movable arm comprises a forked end configured to move on the actuation peg as the movable arm swivels.
    Type: Grant
    Filed: April 21, 2021
    Date of Patent: March 19, 2024
    Assignee: EATON INTELLIGENT POWER LIMITED
    Inventors: Nikhil Saggam, Siddesh Kapdi, Suhrud Purohit, Matthew A. Vance