Patents Examined by Jorge L Leon, Jr.
  • Patent number: 10927723
    Abstract: An engine valve lifter assembly comprises a lifter body, a plunger assembly, and a spring. The lifter body comprises an oil control portion comprising an exterior surface, oil ports, and an interior oil chamber. A plunger interface end comprises an interior plunger chamber and a second spring seat. Selectively reciprocating plunger assembly comprises a piston end coupled to reciprocate in the oil chamber and a cam input end comprising a spring seat. A spring is biased between the spring seat and the second spring seat. The spring is configured to push the cam input end away from the plunger chamber. A sleeve is coupled around the oil control portion of the lifter body, and the sleeve is slidable between a lower position and an upper position to selectively block and unblock the oil ports.
    Type: Grant
    Filed: July 3, 2018
    Date of Patent: February 23, 2021
    Assignee: Eaton Intelligent Power Limited
    Inventor: Venkat S. Sarati
  • Patent number: 10927722
    Abstract: A vane type cam phaser for an internal combustion engine, the vane type cam phaser including a stator and a rotor that is rotatable relative to the stator to adjust a phase angle of a camshaft; a spring element configured to align the rotor with the stator in an idle position; a spring adapter that is arranged between the spring element and the rotor and an axial fixing device that fixes the spring adapter at the rotor.
    Type: Grant
    Filed: February 5, 2020
    Date of Patent: February 23, 2021
    Assignee: ECO Holding 1 GmbH
    Inventors: Rene Heym, Norbert Loesch, Markus Todt, Stefan Wanner
  • Patent number: 10927771
    Abstract: A continuous variable valve duration apparatus may include a camshaft, a cam unit on which a cam is formed, wherein the camshaft is inserted into the cam unit, a guide bracket having an upper guide boss formed thereon, an internal wheel transmitting rotation of the camshaft to the cam unit, a wheel housing in which the internal wheel is rotatable inserted, wherein the wheel housing includes a guide shaft on which a guide screw thread is formed and the guide shaft is inserted into the upper guide boss to be movable, a worm wheel to which an internal screw thread engaging with the guide screw thread is formed therewithin, and to which an external screw thread is formed thereon, and a control shaft on which a control worm engaging with the external screw thread is formed.
    Type: Grant
    Filed: December 3, 2019
    Date of Patent: February 23, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Hyeonwoo Kim, Kyoung Pyo Ha, Back Sik Kim, Jong Gu Kim
  • Patent number: 10914203
    Abstract: An internal combustion engine includes a cylinder head, a support structure, a cam pulley, and a seal member. The support structure is provided above the cylinder head and supports the camshaft. The cam pulley is provided at an end of the camshaft. A timing belt is wound around the cam pulley. A seal member is provided to cover a gap provided between the cylinder head and the support structure at a facing surface facing the cam pulley. The seal member provides sealing between the cylinder head and the support structure in an axial direction of the camshaft.
    Type: Grant
    Filed: January 14, 2020
    Date of Patent: February 9, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Takanobu Arai
  • Patent number: 10900390
    Abstract: A method of operating an electromagnetic latch assembly of a type that includes an electromagnet and a latch pin that is stable independently from the electromagnet in both first and second positions includes energizing the electromagnet systematically over a period in a manner that enhances the functionality of the electromagnetic latch assembly without causing the latch pin to move between the first and second positions. The period may be a period over which the electromagnetic latch assembly is too cold and the electromagnet may be energized in a manner that is effective for heating. Alternatively, the period may be one over which the electromagnetic latch assembly is subject to high inertial forces and the electromagnet may be energized in a manner that is effective to enhance latch pin retention.
    Type: Grant
    Filed: June 22, 2018
    Date of Patent: January 26, 2021
    Assignee: Eaton Intelligent Power Limited
    Inventor: Petr Liskar
  • Patent number: 10900386
    Abstract: The invention relates to a camshaft adjustment device for changing an angular position of a camshaft relative to a crankshaft of an internal combustion engine. The device comprising an actuator, the actuator having a housing flange, fastening means to lock the housing flange to a housing. A latching section is formed on the housing, and a locking section, which comes to bear axially on the latching section, is formed on the housing flange. The fastening means comprises at least two fastening clips for connecting the housing to the housing flange in a frictional and interlocking manner. Each fastening clip has a first leg with a first latching contour and a second leg with a second latching contour. The first latching contour bears against a latching groove in the latching section, and the second latching contour bears against a latching groove in the locking section.
    Type: Grant
    Filed: March 8, 2018
    Date of Patent: January 26, 2021
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Jens Hoppe, Ye Bai
  • Patent number: 10900387
    Abstract: A mechanical cam phasing system includes a stator, a cradle rotor, a first locking mechanism having a first locking feature and a second locking feature, a cage, and a second locking mechanism rotationally coupled to the cradle rotor and selectively moveable between a locking state and a phasing state. In the locking state, a clearance is provided between the cradle rotor and the cage to allow the cradle rotor to rotate relative to the cage and lock the first locking feature or the second locking feature. In the phasing state, the clearance between the cradle rotor and the cage is reduced to ensure rotational coupling between the cradle rotor and the cage in at least one direction, which displaces the first locking feature or the second locking feature relative to the cradle rotor and enables the cradle rotor to rotate relative to the stator.
    Type: Grant
    Filed: December 5, 2019
    Date of Patent: January 26, 2021
    Assignee: HUSCO Automotive Holdings LLC
    Inventors: Michael Kujak, Austin Schmitt, Alexander Schlarmann
  • Patent number: 10895175
    Abstract: A force transmission device for a variable valve drive of an internal combustion engine. The force transmission device has a first lever device. The first lever device has a first cam follower and a first receptacle for the first cam follower. The first cam follower is displaceable and lockable in the first receptacle. The force transmission device has a second lever device. The second lever device has a second cam follower and a second receptacle for the second cam follower. The second cam follower is displaceable and lockable in the second receptacle.
    Type: Grant
    Filed: August 17, 2018
    Date of Patent: January 19, 2021
    Assignee: MAN TRUCK & BUS AG
    Inventor: Peter Bogdanski
  • Patent number: 10883396
    Abstract: A hydraulic camshaft phaser including: a stator including a surface facing radially outwardly, and defining a recess; a rotor arranged to be non-rotatably connected to a camshaft and rotatable with respect to the stator; a spiral spring disposed in the recess and including a first end non-rotatably connected to the rotor and a second end non-rotatably connected to the stator; and a resilient cover plate directly connected to the surface facing radially outwardly, enclosing the spiral spring in the recess, and circumferentially preloaded. A hydraulic camshaft phaser including: a stator: arranged to receive rotational torque and defining a recess and a groove; a rotor rotatable with respect to the stator; a spiral spring disposed in the recess; and a resilient cover plate including a portion disposed in the groove, enclosing the spiral spring in the recess, and compressively engaging the stator in a radially inward direction.
    Type: Grant
    Filed: August 21, 2019
    Date of Patent: January 5, 2021
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Renato de Oliveira Ghiraldi, Alexandre Camilo
  • Patent number: 10883392
    Abstract: A valve bridge system comprises a valve bridge configured to extend between at least two engine valves of an internal combustion engine. In one embodiment, a valve bridge guide is operatively connected to the valve bridge and configured to extend between at least two valve springs respectively corresponding to the at least two engine valves, the valve bridge guide defining a surface conforming to a valve spring of the at least two valve springs. In another embodiment, the valve bridge guide may comprise at least a first member maintained in a first fixed position relative to and at a predetermined distance from the valve bridge. In both embodiments, the valve bridge guide is configured to avoid contact with the valve bridge in a controlled state, but to permit contact with valve bridge to resist uncontrolled movement of the valve bridge.
    Type: Grant
    Filed: November 6, 2019
    Date of Patent: January 5, 2021
    Assignee: JACOBS VEHICLE SYSTEMS, INC.
    Inventors: G. Michael Gron, Jr., Justin D. Baltrucki, Peter Popadiuc, Robb Janak, Jared Annis
  • Patent number: 10876434
    Abstract: A method for generating a camshaft signature for camshaft positioning calibration for a camshaft included in a combustion engine. The camshaft is adapted to cause a valve to open and close an opening to a cylinder volume of the combustion engine. The combustion engine further includes an intake surge tank adapted for receiving air from the outside environment. The intake surge tank is in fluid connection with the cylinder volume of the combustion engine for providing air for mixing with fuel injected into the cylinder.
    Type: Grant
    Filed: May 10, 2019
    Date of Patent: December 29, 2020
    Assignee: Volvo Car Corporation
    Inventors: Jan Dahlgren, Stefan Dunert
  • Patent number: 10865716
    Abstract: A camshaft adjuster for adjusting the phase angle between a crankshaft and a camshaft of an internal combustion engine comprises an actuator, in particular, an electric motor, and an adjustment module, which comprises a drive element, which can be driven by the crankshaft, and an output element, which can be rotated relative to the drive element to a limited extent and which is provided to be securely coupled to the camshaft, wherein a signal generator, which is arranged so as to be fixed in position on the internal combustion engine and which has an inductance, is inductively coupled to a measurement circuit, which is integrated into the adjustment module and which has at least one resonant circuit component having electrical properties that depend on the said phase angle.
    Type: Grant
    Filed: March 31, 2015
    Date of Patent: December 15, 2020
    Assignee: Schaefller Technologies AG & Co. KG
    Inventors: Wolfgang Braun, Jens Heim, Jens Schäfer, Andreas Thölke
  • Patent number: 10865664
    Abstract: A hydraulically-actuated camshaft phaser includes a camshaft sprocket having a plurality of teeth configured to engage an endless loop that transmits angular motion from the crankshaft to the hydraulically-actuated camshaft phaser; a rotor, coupled with the camshaft sprocket to prevent angular movement between the camshaft sprocket and the rotor, that includes one or more vanes extending radially outwardly forming a plurality of fluid chambers; and a housing that selectively changes angular position relative to the rotor and the crankshaft and is configured to be linked with a variable phase camshaft to change the angular position of the variable phase camshaft relative to the crankshaft.
    Type: Grant
    Filed: October 29, 2019
    Date of Patent: December 15, 2020
    Assignee: BorgWarner, Inc.
    Inventor: John R. Smerczak
  • Patent number: 10865665
    Abstract: Cam phasing systems and methods are provided. In particular, a cam phasing system is provided that includes a reduced number of components when compared to current mechanical cam phasing systems. The cam phasing system includes a helix locking design that is configured to frictionally lock an helix rod during cam torque pulses.
    Type: Grant
    Filed: February 6, 2020
    Date of Patent: December 15, 2020
    Assignee: HUSCO Automotive Holdings LLC
    Inventors: Austin Schmitt, Allen Tewes, Michael Kujak, Brian Heidemann
  • Patent number: 10865666
    Abstract: A variable cam timing phaser mounted to a camshaft and including a housing assembly having an outer circumference for accepting a drive force; a rotor assembly received by the housing assembly defining a chamber separated into an advance chamber and retard chamber by a vane; a control valve in fluid communication with the advance chamber and the retard chamber, a source of fluid, and a sump through at least one exhaust line connected to at least one exhaust port; and at least one check valve in the at least one exhaust line between the control valve and the sump. The at least one check valve prevents air from the sump connected to the at least one exhaust port from being sucked into the variable cam timing phaser through the at least one exhaust port during a torque reversal of the camshaft.
    Type: Grant
    Filed: November 1, 2019
    Date of Patent: December 15, 2020
    Assignee: BorgWarner Inc.
    Inventors: Adam Bruce, Keith Feldt, Braman Wing
  • Patent number: 10858968
    Abstract: A hydraulic camshaft adjuster adjusts the control time of gas exchange of an internal combustion engine. A reservoir for storing pressure medium is formed on a cover of the hydraulic camshaft adjuster. An overflow opening of the cover is dimensioned such that a volume of pressure medium remains in the reservoir when the hydraulic camshaft adjuster is stationary. This ensures that pressure medium is supplied to the return valve of a central locking mechanism when the engine is running.
    Type: Grant
    Filed: June 18, 2018
    Date of Patent: December 8, 2020
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Gerhard Scheidig, Jochen Thielen, Enno Schmitt
  • Patent number: 10858967
    Abstract: When a supply check valve is opened, the supply check valve enables a flow of oil from an oil supply source toward a pressure accumulation space. When the supply check valve is closed, the supply check valve limits a flow of the oil from the pressure accumulation space toward the oil supply source. When a recycle check valve is opened, the recycle check valve enables a flow of the oil from a retard chamber or an advance chamber toward the pressure accumulation space. When the recycle check valve is closed, the recycle check valve limits a flow of the oil from the pressure accumulation space toward the retard chamber or the advance chamber. A characteristic of the supply check valve with respect to valve opening of the supply check valve is different from a characteristic of the recycle check valve with respect to valve opening of the recycle check valve.
    Type: Grant
    Filed: July 3, 2019
    Date of Patent: December 8, 2020
    Assignee: DENSO CORPORATION
    Inventors: Tetsuro Mitsutani, Jing Xu
  • Patent number: 10851680
    Abstract: An internal combustion engine allows easy installment of a support that pivotally supports a rocker arm while preventing fretting wear due to rising of the support. The internal combustion engine includes the support, at least a portion of which is located in a hole of a cylinder head, a rocker arm that is pivotally supported on the support, and a ball plunger that secures the support inside the hole. The ball plunger includes a spring seat that contacts with the support, a ball that contacts with the cylinder head, and a spring interposed between the spring seat and the ball.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: December 1, 2020
    Assignee: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventor: Yasuo Okamoto
  • Patent number: 10851683
    Abstract: A valve drive includes a transfer arrangement with an intermediate lever arrangement having a first roller element and an intermediate lever, and a drag lever arrangement having a drag lever. The first roller element is connected to a circumferential contour of a camshaft. The intermediate lever includes a second roller element and a working curve connected to the drag lever. A slotted guide is provided for the intermediate lever arrangement which is engaged by a guide roller element. A torsion spring element with first and second ends engages the intermediate lever arrangement. The first end rests on the cylinder housing portion. The second end acts on a counter bearing rigidly connected with the intermediate lever. The first and second roller element axes are arranged to introduce a force into the intermediate lever which presses the guide roller element against the slotted guide and the first roller element against the camshaft.
    Type: Grant
    Filed: April 30, 2015
    Date of Patent: December 1, 2020
    Assignee: PIERBURG GMBH
    Inventors: Michael Breuer, Karsten Grimm, Stephan Schmitt, Sabine Siebrandt
  • Patent number: 10837322
    Abstract: Provided is an opposed-piston engine which attains high output, ensures combustion toughness, and includes a simplified configuration of a crankshaft counter-rotation synchronization mechanism which rotates crankshafts in engine units in opposite directions. An opposed-piston engine 10 of the present invention includes a first engine unit 11 and a second engine unit 21. The first engine unit 11 and the second engine unit 21 respectively include a first cylinder 12 and a second cylinder 22 independent of each other. In addition, a first valve driving mechanism 19 and a second valve driving mechanism 20 which control valves also function as a crankshaft counter-rotation synchronization mechanism 29 which rotates a first crankshaft 14 of the first engine unit 11 and a second crankshaft 24 of the second engine unit 21 in the opposite directions.
    Type: Grant
    Filed: July 5, 2017
    Date of Patent: November 17, 2020
    Assignee: ISHIKAWA ENERGY RESEARCH CO., LTD.
    Inventor: Toru Kano