Patents Examined by Wesley G Harris
  • Patent number: 10934897
    Abstract: Provided is a mechanical lash adjuster including a plunger, a housing put into thread engagement with the plunger in an axial direction to form a thread engagement portion, the plunger engaging member fixed and retained in a circumferential direction of the thread engagement portion, and a coil spring urging the plunger in a direction opposite to a urging-force acting direction of a coil spring. A lead and flank angles of threads forming the thread engagement portion are set such that when an axial load acts on the plunger in either of a plunger extension and contraction directions, the plunger is made self-sustaining, and when the plunger swings by an amount corresponding to a backlash due to a lateral load, the plunger slides and rotates at the thread engagement portion to move in an axial-load acting direction.
    Type: Grant
    Filed: June 17, 2016
    Date of Patent: March 2, 2021
    Assignee: NITTAN VALVE CO., LTD.
    Inventors: Michihiro Kameda, Hiroyuki Ozawa, Masaaki Inoue
  • Patent number: 10927719
    Abstract: A variable cam timing phaser arrangement is disclosed, comprising: a rotor having at least one vane; a stator co-axially surrounding the rotor, having a recess for receiving the vane of the rotor, wherein the vane divides the recess into a first chamber and a second chamber; and a control assembly for regulating hydraulic fluid flow from the first chamber to the second chamber or vice-versa. The control assembly comprises a central on/off piloted valve allowing or preventing fluid flow along a first unidirectional flow path between the first and second chambers, and a central solenoid valve allowing or preventing fluid flow along a second unidirectional flow path between the first and second chambers in the opposite direction to the first flow path. Also disclosed are an integrated valve unit for use in the variable cam timing phaser arrangement, and a method of controlling the timing of a camshaft.
    Type: Grant
    Filed: April 11, 2017
    Date of Patent: February 23, 2021
    Assignee: Scania CV AB
    Inventors: Daniel Olovsson, Mikael Eriksson
  • Patent number: 10927717
    Abstract: A valve train lever for actuating a valve of a reciprocating piston engine, in particular an internal combustion engine. The valve train lever comprises a lever arm, which is pivotally movable about a pin; a tapping element, which lies against or can be made to lie against a cam of a camshaft of the reciprocating piston engine; a coupling mechanism, by way of which the tapping element is coupled to the lever arm spring-elastically in a first state and rigidly in a second state; and an actuating element, which is connected to the lever arm and lies against or can be made to lie against a valve tappet of the valve.
    Type: Grant
    Filed: May 8, 2018
    Date of Patent: February 23, 2021
    Assignee: MAN TRUCK & BUS ÖSTERREICH GESMBH
    Inventors: Gottfried Raab, Thomas Eibl, Franz Leitenmayr, Ewald Hundsberger
  • Patent number: 10920626
    Abstract: A system and method of controlling an angular position of a camshaft relative to an angular position of a crankshaft includes detecting rotational movement of an electric motor output shaft controlling a camshaft phaser; detecting rotational movement of the crankshaft; determining the relative difference between the rotational movement of the electric motor output shaft and the rotational movement of the crankshaft; and determining whether the angular position of the camshaft relative to the angular position of the crankshaft is advancing, retarding, or remaining constant.
    Type: Grant
    Filed: February 15, 2018
    Date of Patent: February 16, 2021
    Assignee: BORGWARNER, INC.
    Inventor: Daniel Brown
  • Patent number: 10900393
    Abstract: A control device controls an internal combustion engine including: an elastic wave sensor arranged and configured to output a signal responsive to the strength of an acoustic emission wave produced at a sliding portion; and a variable oil pump. The control device is configured to execute an oil pressure control such that the oil pressure approaches a target oil pressure according to an engine operating condition. This oil pressure control includes a first pressure-increase processing executed where an AE correlation value correlated with the strength or occurrence frequency of the acoustic emission wave detected by the elastic wave sensor is greater than a first threshold value. The first pressure-increase processing increases the target oil pressure associated with a first engine operating condition present when the AE correlation value becomes greater than the first threshold value, as compared to when the AE correlation value is not greater than that.
    Type: Grant
    Filed: January 4, 2019
    Date of Patent: January 26, 2021
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, TAIHO KOGYO CO., Ltd.
    Inventors: Yusuke Morita, Motoichi Murakami, Takeshi Fukui, Yuichiro Kajiki, Katsuhiro Ashihara, Alan Hase, Takashi Izumi
  • Patent number: 10895178
    Abstract: An actuator for a cam phaser, wherein the cam phaser includes a hydraulic valve that is adjustable by the actuator, wherein the actuator is receivable at a housing section by at least one form locking connection, wherein the at least one form locking connection includes a first form element pair and a second form element pair, wherein the first form element pair includes a first stop and the second form element pair includes a second stop, and wherein the first stop and the second stop are oriented in opposite directions of rotation of the actuator.
    Type: Grant
    Filed: February 9, 2018
    Date of Patent: January 19, 2021
    Assignee: ECO Holding 1 GmbH
    Inventors: Tim Wells, Brian Kujawski, Brent Brower
  • Patent number: 10895176
    Abstract: This disclosure relates to a trigger wheel for a camshaft adjuster, having a side wall extending along a central longitudinal axis, wherein a formed feature made to project in a radial direction of the longitudinal axis is formed in a circumferential region of the side wall. The formed feature is provided at least in part with a wave profile. Moreover, the disclosure relates to a camshaft adjuster having this trigger wheel.
    Type: Grant
    Filed: August 2, 2019
    Date of Patent: January 19, 2021
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Alexandre Camilo, Renato de Oliveira Ghiraldi
  • Patent number: 10895174
    Abstract: A valvetrain assembly includes: a main exhaust rocker arm assembly having a first main exhaust rocker arm and a second main exhaust rocker arm; a first latch assembly that selectively moves between a first position in which the first and second main exhaust rocker arms are locked for concurrent rotation and a second position in which one of the first and second main exhaust rocker arms rotates relative to an other of the first and second main exhaust rocker arms; a secondary exhaust rocker arm assembly having a first secondary exhaust rocker arm and a second secondary exhaust rocker arm; a second latch assembly that selectively moves between a first position in which the first and second secondary exhaust rocker arms are locked for concurrent rotation and a second position in which one of the first and second secondary exhaust rocker arms rotates.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: January 19, 2021
    Assignee: EATON INTELLIGENT POWER LIMITED
    Inventor: Majo Cecur
  • Patent number: 10895179
    Abstract: A camshaft phaser assembly, including: an axis of rotation; a first hydraulic camshaft phaser including a first stator arranged to receive rotational torque, a first rotor including a plurality of first through-bores, and a first plurality of phaser chambers circumferentially bounded by the first stator and the first rotor; a second hydraulic camshaft phaser including a second stator non-rotatably connected to the first stator, a second rotor, and a second plurality of phaser chambers circumferentially bounded by the second stator and the second rotor; a first trigger wheel including a plurality of second through-bores connected to the plurality of first through-bores, non-rotatably connected to the first rotor, and arranged to identify a rotational position of the first rotor; and a second trigger wheel non-rotatably connected to the second rotor and arranged to identify a rotational position of the second rotor.
    Type: Grant
    Filed: January 10, 2019
    Date of Patent: January 19, 2021
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventor: Michael Kandolf
  • Patent number: 10895177
    Abstract: A camshaft phaser arrangement configured for a concentric camshaft assembly having inner and outer camshafts is provided. The camshaft phaser arrangement includes a first camshaft phaser, a second camshaft phaser, a coupling, and at least one timing wheel connected to at least one of the first or second camshaft phaser. Each of the camshaft phasers is configured to be connected to either the inner or the outer camshaft. The at least one timing wheel defines at least one cutout that is configured to receive at least a portion of the coupling.
    Type: Grant
    Filed: November 16, 2018
    Date of Patent: January 19, 2021
    Assignee: Schaeffler Technologies AG & CO KG
    Inventors: Inhwa Chung, Steven Burke, Michael Kandolf, Jeff Mossberg, Andrew Mlinaric
  • Patent number: 10883394
    Abstract: A support arrangement for an actuator of a cam phaser, the support arrangement including an actuator module including an actuator; and a support element configured to support the actuator module on a camshaft, wherein the actuator module is connected to the support element by an electrical contact arrangement configured to actuate the actuator, and wherein the electrical contact arrangement includes an elastic clamping element.
    Type: Grant
    Filed: May 14, 2019
    Date of Patent: January 5, 2021
    Assignee: ECO Holding 1 GmbH
    Inventor: Daniel Stanhope
  • Patent number: 10883620
    Abstract: A valve assembly that provides reliable opening and closing valves at specified times despite changing performance characteristics of the valve is disclosed. The valve assembly includes a controllable valve selectively actuatable to control flow of a fluid therethrough, with the controllable valve having a variable valve open/close response time. The valve assembly also includes a plurality of sensors configured to measure current operational parameters of the controllable valve and/or the fluid and a valve controller programmed to process valve timing control instructions generated by an external source, process inputs from the plurality of sensors regarding the measured operational parameters of the controllable valve and/or the fluid, and provide an actuation signal to the controllable valve based on the valve timing control instructions and the inputs from the plurality of sensors, so as to control a timing of an actuation of the controllable valve.
    Type: Grant
    Filed: January 11, 2018
    Date of Patent: January 5, 2021
    Assignee: Bright Energy Storage Technologies, LLP
    Inventors: Nikola Milivojevic, Yusuf Gurkaynak, Jacob Lee Fitzgerald, Scott Raymond Frazier
  • Patent number: 10876435
    Abstract: A case for rotating integrally with a crankshaft of an engine; a rotor housed in the case, to be rotated integrally with a camshaft of the engine by fastening the rotor coaxially to the camshaft with a center bolt; and a groove provided around an axis of the rotor on an opposite side of the rotor to the camshaft, and having an inner wall intersecting a rotation direction of the rotor are provided.
    Type: Grant
    Filed: January 5, 2017
    Date of Patent: December 29, 2020
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Takuhiro Matsumoto, Hirofumi Hase
  • Patent number: 10876441
    Abstract: Provided is a tappet capable of supplying lubricating oil to a cam even when provided with a lash adjuster. A tappet (10) includes: a lash adjuster (11) having a plunger (14) and a body (13) in which the plunger (14) is housed so as to be vertically movable, wherein the plunger (14) has a top portion (16) against which a lower end portion of a push rod (88) slidably abuts; and a tappet body (12) which has an assembly hole (45) in which the body (13) is inserted, has a cup-like shape, and has a lower surface portion (27) which slidingly contacts a cam (70). The tappet body (12) has an oil guide passage (30) extending so as to guide lubricating oil from the push rod (88) side to the cam (70).
    Type: Grant
    Filed: January 26, 2018
    Date of Patent: December 29, 2020
    Assignees: OTICS CORPORATION, KUBOTA CORPORATION
    Inventors: Hon Chung Woon, Masayasu Takami
  • Patent number: 10858965
    Abstract: A retard supply passage connects between a hydraulic oil supply source and a retard chamber through a hydraulic oil controller. An advance supply passage connects between the hydraulic oil supply source and an advance chamber through the hydraulic oil controller. A drain passage and a drain passage connect the retard chamber and the advance chamber to an oil discharge portion, respectively. A recycle passage connects the drain passage and the drain passage to the retard supply passage and the advance supply passage, respectively. A recycle check valve enables only a flow of hydraulic oil from the drain passages toward the retard supply passage and the advance supply passage in the recycle passage. The recycle passage is connected to the drain passages at an inside of the hydraulic oil controller.
    Type: Grant
    Filed: July 3, 2019
    Date of Patent: December 8, 2020
    Assignee: DENSO CORPORATION
    Inventor: Tetsuro Mitsutani
  • Patent number: 10858970
    Abstract: An engine camshaft has a lubricating oil passage formed along the longitudinal axis of the same, a cam communicating oil hole is radially formed from the lubricating oil passage to an outer peripheral surface of the camshaft at the same axial position as an engine valve. Cam lubrication holes are radially formed from the inside to cam surfaces of cam lobes formed around a cam carrier fitted around the camshaft. One of the cam lubrication holes of the cam lobes shifted to a position for operating the valve communicates with the cam communicating oil hole of the camshaft to supply lubricant oil.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: December 8, 2020
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Dai Kataoka, Yoshihiro Takada
  • Patent number: 10858964
    Abstract: A single-row planetary bearing includes a single row of spherical rolling elements between an outer ring and an inner ring. A planetary gear is supported by a thrust bearing portion and is radially supported by the outer ring. The planetary gear performs a planetary motion while engaging with a driving rotor and a driven rotor at an eccentric side to adjust a rotational phase between the driving rotor and the driven rotor. The thrust bearing portion supports the planetary gear that is tilting with respect to the revolution centerline. The planetary gear has a recessed portion opened toward the thrust bearing portion. When the rotational phase is adjusted to a specific phase, the recessed portion is positioned at an anti-eccentric side opposite to the eccentric side with respect to a rotation centerline of the planetary gear.
    Type: Grant
    Filed: January 3, 2020
    Date of Patent: December 8, 2020
    Assignee: DENSO CORPORATION
    Inventors: Makoto Otsubo, Hiroki Takahashi
  • Patent number: 10858966
    Abstract: A valve timing change device includes: a housing rotor (10); a vane rotor; a fastening bolt (40) for fastening the vane rotor to a cam shaft; and an advance angle oil passage that constitutes a ring-shaped groove communicating with an advance angle chamber and a delay angle oil passage that constitutes a ring-shaped groove communicating with a delay angle chamber, via oil passages which are open at intervals on an outer circumferential surface of the fastening bolt. The vane rotor includes: a rotor body (20) having a small-diameter inner circumferential portion (23) and a large-diameter inner circumferential portion (24); and a rotor sleeve (30) that is fitted into the large-diameter inner circumferential portion, is in tight contact with the outer circumferential surface (41a) of the fastening bolt, and demarcates the advance angle oil passage (23a) in cooperation with the small-diameter inner circumferential portion.
    Type: Grant
    Filed: December 26, 2016
    Date of Patent: December 8, 2020
    Assignee: MIKUNI CORPORATION
    Inventors: Takahiro Ogura, Chikara Oikawa
  • Patent number: 10858969
    Abstract: An engine variable valve train is provided with a cylindrical cam carrier fitted on a camshaft in a manner axially slidable to and co-rotatable with the camshaft. The cam carrier has therearound mutually adjoining low-speed and high-speed cam lobes selectively acting on the engine valve and being different in cam profile. The cam carrier has therearound lead grooves to be engaged with or disengaged from changeover pins for axial shift of the cam carrier. The lead grooves include a speed-increasing lead groove for changeover from the low-speed to the high-speed cam lobe and a speed-decreasing lead grooves for changeover from the high-speed to the low-speed cam lobe. The speed-increasing and speed-decreasing lead grooves are different in groove contour. This enables the cam carrier to axially shift smoothly and to improve the durability of the lead grooves.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: December 8, 2020
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Yoshihiro Takada, Dai Kataoka
  • Patent number: 10844755
    Abstract: A control valve for use in a cam timing phaser arrangement is disclosed comprising a cylindrical valve body, a rotational shuttle element coaxially located within a recess of the valve body, and a blocking pin. When using in a cam timing phaser arrangement having a first phasing chamber and a second phasing chamber, the control valve when non-actuated acts as a double check valve, preventing flow between chambers. Actuation of the blocking pin limits rotation of the rotational shuttle element and results in the control valve allowing flow in a single flow direction between phasing chambers. The allowed direction of flow can be controlled by controlling the timing of the deployment of the blocking pin. A cam timing phaser arrangement, internal combustion engine, and vehicle comprising such a control valve are also disclosed.
    Type: Grant
    Filed: May 10, 2017
    Date of Patent: November 24, 2020
    Assignee: Scania CV AB
    Inventors: Daniel Olovsson, Mikael Eriksson