Patents Examined by Zelalem Eshete
  • Braking device for electric engine
    Patent number: 10876438
    Abstract: An electric engine braking device comprising a control mechanism and an electric driving mechanism, wherein the control mechanism comprises a housing, an execution plunger and a sliding assembly; the sliding assembly comprises a sliding block, a first elastic piece, a transfer plunger and a second elastic piece; the transfer plunger comprises a first position which is completely provided in the sliding block and a second position which extends out of the sliding block to connect the sliding block and the housing into a whole; and the electric driving mechanism comprises an execution motor, a sliding plate frame, a sliding plate and a contact leaf spring, the execution motor can push the sliding plate to slide along the sliding plate frame, drive the contact leaf spring to push the execution plunger to slide, and drive the transfer plunger to move and keep the transfer plunger at the second position.
    Type: Grant
    Filed: August 29, 2019
    Date of Patent: December 29, 2020
    Assignee: ZHEJIANG LIMING INTELLIGENT MANUFACTURING CO., LTD.
    Inventors: Liming Yu, Zhenhuan Yu
  • Three roller rocker arm with cantilevered rollers and lost motion spring over valve or over rocker arm pivot
    Patent number: 10876436
    Abstract: A rocker arm, comprises a first outer arm comprising a first inner side and a first outer side, the first outer side comprising a first cantilevered post. A first outer roller is mounted to the first cantilevered post. A second outer arm comprises a second inner side and a second outer side, the second inner side facing the first inner side, the second outer side comprising a second cantilevered post. A second outer roller is mounted to the second cantilevered post. A pivot body joins the first inner side to the second inner side. An actuatable latch mechanism is within the pivot body. An inner arm assembly comprises a latch arm, the latch arm pivotable adjacent the pivot body. A pivot axle joins the inner arm assembly to pivot between the first outer arm and the second outer arm.
    Type: Grant
    Filed: October 9, 2017
    Date of Patent: December 29, 2020
    Assignee: Eaton Intelligent Power Limited
    Inventor: Matthew A. Vance
  • Three roller rocker arm with outboard lost motion spring
    Patent number: 10871088
    Abstract: A rocker arm can comprise a first outer arm and a second outer arm joined by a pivot body. An actuatable latch mechanism is within the pivot body. An inner arm assembly comprises a latch arm. A first spring prop is on the inner arm assembly distal from the latch arm. An axle joins the inner arm assembly to pivot between the first outer arm and the second outer arm. A spring is biased against the first outer arm and against the first spring prop. The first spring prop can comprise a hooked end. Or, the first spring prop can extend laterally out from the rocker arm and parallel to the axle. The spring can comprise a one-piece spring comprising first and second coil springs connected by a lateral connector. Or, two separate torsion springs can comprising tangential spring ends extending at approximately 90 degrees.
    Type: Grant
    Filed: October 9, 2017
    Date of Patent: December 22, 2020
    Assignee: Eaton Intelligent Power Limited
    Inventor: Matthew A. Vance
  • Rocker arm having oil release valve that operates as an accumulator
    Patent number: 10871086
    Abstract: An exhaust valve rocker arm assembly operable in a combustion engine mode and an engine braking mode can include a rocker shaft and a rocker arm. The rocker shaft can define a pressurized oil supply conduit. The rocker arm can receive the rocker shaft and is configured to rotate around the rocker shaft. The rocker arm can have an oil supply passage defined therein. A valve bridge can engage a first exhaust valve and a second exhaust valve. An accumulator assembly can be disposed in the rocker arm and includes an accumulator piston that translates within the accumulator piston housing between closed and open positions. A predetermined amount of oil is stored in the accumulator assembly.
    Type: Grant
    Filed: December 30, 2019
    Date of Patent: December 22, 2020
    Assignee: Eaton S.r.L.
    Inventor: Nicola Andrisani
  • Self-contained e-foot
    Patent number: 10871089
    Abstract: A rocker arm, comprises a first outer arm and a second outer. A pivot body is joined between the first end of the first outer arm and the third end of the second outer arm. An actuatable latch mechanism is within the pivot body. An inner arm assembly comprises a latch arm pivotable adjacent the pivot body. An axle joins the inner arm assembly to pivot between the first outer arm and the second outer arm. An outer arm connector spans between the second end of the first outer arm and the fourth end of the second outer arm. A valve seat insert is constrained within the inner arm assembly between the outer arm connector and the axle. Alternatively, a valve seat insert hangs from the axle and is constrained within the inner arm assembly, the valve seat insert comprising a front and a rear cusp.
    Type: Grant
    Filed: October 9, 2017
    Date of Patent: December 22, 2020
    Assignee: Eaton Intelligent Power Limited
    Inventor: Matthew A. Vance
  • Anti-rotation feature for followers using an oil gallery insert
    Patent number: 10865662
    Abstract: An engine comprises a plurality of rotating eccentric cams on a cam rail, a valve train mechanism, and respective followers wherein at least one of the respective followers has a respective first end in contact with a respective rotating eccentric cam and a respective second end in contact with the valve train mechanism, a body extending between the first end and the second end, and a follower fluid port. The engine further comprises an oil gallery bore parallel to the cam rail wherein the oil gallery bore is configured to supply oil to the respective follower through its fluid port. The engine further comprises a gallery insert placed in the oil gallery bore and is configured to abut the respective follower to prevent axial rotation with respect to the cam rail. The engine further comprises a gallery insert abut a flat surface of a follower to prevent axial rotation.
    Type: Grant
    Filed: May 5, 2017
    Date of Patent: December 15, 2020
    Assignee: Eaton Intelligent Power Limited
    Inventor: Dale Arden Stretch
  • Rocker arm assembly for engine braking
    Patent number: 10858963
    Abstract: An exhaust valve rocker arm assembly selectively opening first and second exhaust valves includes an exhaust rocker arm, an engagement capsule, a valve bridge operably associated with the rocker arm and including a main body, and a hydraulic actuator assembly disposed at least partially within an aperture formed within the main body. The hydraulic actuator assembly includes a first piston body and a second piston body disposed at least partially within the aperture formed in the main body. The exhaust rocker arm is configured to engage the valve bridge main body to engage the first exhaust valve, and the engagement capsule is configured to engage the hydraulic actuator to engage the second exhaust valve.
    Type: Grant
    Filed: October 9, 2019
    Date of Patent: December 8, 2020
    Assignee: Eaton Intelligent Power Limited
    Inventors: Douglas J. Nielsen, James E. McCarthy, Jr.
  • Variable valve actuation system for type II valverain using lost motion and reset
    Patent number: 10851681
    Abstract: A rocker arm assembly for a Type II valvetrain arranged for cooperation with a cylinder head includes a roller finger follower (RFF) and a lost motion with reset (LMR) hydraulic assembly. The RFF has a first end and a second end. The first end cooperates with a valve. The LMR hydraulic assembly has a hydraulic control element and a plunger. The LMR hydraulic assembly moves the plunger between a rigid position and a non-rigid position. The LMR hydraulic assembly is configured at the second end of the RFF.
    Type: Grant
    Filed: January 17, 2019
    Date of Patent: December 1, 2020
    Assignee: Eaton Intelligent Power Limited
    Inventors: Mark VanWingerden, Eric Yankovic
  • Engine valve actuation systems with lost motion valve train components, including collapsing valve bridges with locking pins
    Patent number: 10851682
    Abstract: Systems for valve actuation in internal combustion engines provide configurations for collapsing valve train components, particularly collapsing valve bridges. Various configurations for locking a bridge piston to a bridge housing include substantially cylindrical locking pins that may be housed within a substantially cylindrical receptacles defined by a transverse bore in the bridge piston and actuated hydraulically and may include an actuating pin that interacts with the locking pins to synchronize motion and provide positive positioning within an annular recess in the bridge housing to lock or unlock the bridge piston for movement relative to the bridge housing. Various geometries for locking pins and actuating pins provide benefits of manufacturing, ease of assembly, alignment and reduced wear.
    Type: Grant
    Filed: June 27, 2019
    Date of Patent: December 1, 2020
    Assignee: JACOBS VEHICLE SYSTEMS, INC.
    Inventor: Justin D. Baltrucki
  • Camshaft adjusting system having a hydraulic camshaft adjuster and an electric camshaft adjuster
    Patent number: 10844754
    Abstract: This disclosure relates to a camshaft adjusting system for a motor vehicle, having an inner camshaft, and an outer camshaft, which is arranged coaxially with and radially outside the inner camshaft. The camshaft adjusting system further includes an input wheel, which is designed to introduce torque into the camshafts, a hydraulic camshaft adjuster, which acts on the outer camshaft to adjust the phase angle of the outer camshaft relative to the input wheel, and an electric camshaft adjuster, which acts on the inner camshaft to adjust the phase angle of the inner camshaft relative to the input wheel. The electric camshaft adjuster engages in the hydraulic camshaft adjuster at least partially in an axial direction.
    Type: Grant
    Filed: April 25, 2019
    Date of Patent: November 24, 2020
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Jürgen Weber, Jochen Thielen, Marco Hildebrand
  • Hydraulic camshaft adjuster having a mechanical and a hydraulic ratchet
    Patent number: 10844756
    Abstract: The disclosure relates to a hydraulic camshaft adjuster having a stator, which is synchronously rotatable with a crankshaft of the internal combustion engine, a rotor rotatably arranged relative to the stator and synchronously rotatable with a camshaft, two groups of working chambers that can each be loaded with a pressure medium in a pressure medium circuit, and a central locking device for locking the rotor in a defined position relative to the stator. The stator is delimited on a first front end by a multi-part locking cover. The multi-part locking cover has a first locking cover and a second locking cover. A first stage of a mechanical ratchet is formed on the first locking cover, and at least one further stage of the mechanical ratchet is formed on the second locking cover.
    Type: Grant
    Filed: August 1, 2018
    Date of Patent: November 24, 2020
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Jochen Thielen, Michael Keck, Enno Schmitt
  • Actuator arrangement
    Patent number: 10837327
    Abstract: An actuator arrangement for controlling a latching arrangement of a dual body rocker arm of an internal combustion engine, the dual body rocker arm comprising a first body, a second body, and the latching arrangement, the latching arrangement being controllable to latch and unlatch the first body and the second body. The actuator arrangement includes: an actuation source; a shaft including a cam for controlling the latching arrangement; and a gear mechanism for translating a continuous rotation of the actuation source into an intermittent rotation of the shaft in steps of a predefined degree. In use, a continuous rotation of the actuation source causes, via the gear mechanism, the shaft to rotate in steps of a predefined degree, thereby to change an orientation of the cam relative to the latching arrangement by a predefined amount, so as to control the latching arrangement.
    Type: Grant
    Filed: July 7, 2018
    Date of Patent: November 17, 2020
    Assignee: EATON INTELLIGENT POWER LIMITED
    Inventor: Majo Cecur
  • Valve timing control device for internal combustion engine
    Patent number: 10837326
    Abstract: An internal combustion engine valve timing control device includes a communication passage formed in a first rotating member to communicate with a working chamber, and including a first opening. The first opening is opened to a back pressure chamber when a tip portion of a lock member is inserted in a lock hole, and is closed by the lock member when the tip portion of the lock member is out of the lock hole. A first cross-sectional area is smaller than a second cross-sectional area, wherein the first cross-sectional area is a smaller one of a minimum cross-sectional area of the communication passage and an open cross-sectional area of the first opening, and the second cross-sectional area is a smaller one of a minimum cross-sectional area of an exhaust passage and an open cross-sectional area of an opening of the exhaust passage opened to the back pressure chamber.
    Type: Grant
    Filed: April 26, 2018
    Date of Patent: November 17, 2020
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Shohei Okada, Kotaro Watanabe, Kuninaga Hatsugai
  • Internal combustion engine, straddled vehicle, and method for manufacturing internal combustion engine
    Patent number: 10823108
    Abstract: An internal combustion engine includes a cylinder head including a first valve lifter hole, a first camshaft rotatably supported on the cylinder head, a first valve lifter inserted in the first valve lifter hole, a first valve spring that biases the first valve lifter toward the first cam of the first camshaft, and an oil supply passage having a first oil supply port formed on the inner circumferential surface of the first valve lifter hole and a first passage connected to the first oil supply port. An upper end of the first oil supply port is located upward relative to the upper surface of the first valve lifter when the first valve lifter is in the lower position. A lower end of the first oil supply port is located downward relative to the upper surface of the first valve lifter when the first valve lifter is in the upper position.
    Type: Grant
    Filed: January 29, 2020
    Date of Patent: November 3, 2020
    Assignee: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventor: Manabu Miyata
  • Method for mounting at least one sealing ring on a camshaft in a bearing line of an internal combustion engine, and camshaft having at least one sealing ring mounted in such a way
    Patent number: 10815836
    Abstract: A method for mounting a camshaft in a bearing line of a cylinder head cover of an internal combustion engine may involve mounting a sealing ring in a groove extending radially circumferentially on an outer diameter of the camshaft. The sealing ring may be at least partly formed of an elastically deformable polymer such as polytetrafluoroethylene (PTFE). The method may further involve sliding a calibrating tool having a rotationally symmetrical opening onto the camshaft or sliding the camshaft into the calibrating tool. A smallest inside diameter of the rotationally symmetrical opening may be greater than an outside diameter of the camshaft in a region of the groove but less than an outside diameter of the sealing ring. Consequently, the sealing ring is pressed into the groove and is frictionally and interlockingly held in the groove.
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: October 27, 2020
    Assignees: THYSSENKRUPP PRESTA TECCENTER AG, THYSSENKRUPP AG
    Inventors: Marko Curlic, Aaron Pfitscher, Manfred Muster, Kanwar Bir Singh Sidhu, Reinhard Schlemmer
  • Two step rocker arm having side by side roller configuration
    Patent number: 10815839
    Abstract: A rocker arm assembly constructed in accordance to one example of the present disclosure includes an outer rocker arm, a first inner rocker arm, and a second inner rocker arm. The first inner rocker arm is configured to move between a latched and unlatched position relative to the outer rocker arm. The second inner rocker arm is configured to move between a latched and unlatch position relative to the outer rocker arm. The rocker arm assembly provides at least three distinct lift profiles including (i) a first lift profile when the first inner rocker arm is latched and the second inner rocker arm is unlatched, (ii) a second lift profile when the second inner rocker arm is latched and the first inner rocker arm is unlatched, and (iii) a third lift profile when both the first and second inner rocker arms are unlatched.
    Type: Grant
    Filed: February 25, 2019
    Date of Patent: October 27, 2020
    Assignee: Eaton Intelligent Power Limited
    Inventors: James E. McCarthy, Jr., Dale Arden Stretch
  • Valve mechanism, engine and vehicle
    Patent number: 10815837
    Abstract: A valve mechanism includes a valve, a camshaft, a fixed support, an intermediate swing arm and a supporting base. The fixed support is provided with a connecting-portion via hole running from top to bottom, two oil passages are defined in a connecting portion, and each of the oil passages is connected with the connecting-portion via hole and a corresponding intermediate swing arm shaft hole. The supporting base defines first and second oil feeding passages therein, the first supporting-base oil feeding passage is communicated with the connecting-portion via hole, and an upper end of the second supporting-base oil feeding passage extends to a base-body camshaft supporting portion of the supporting base. An engine and a vehicle are also provided.
    Type: Grant
    Filed: June 7, 2018
    Date of Patent: October 27, 2020
    Assignee: GREAT WALL MOTOR COMPANY LIMITED
    Inventors: Tao Liu, Fabao Yang, Ji Yin, Jiajia Hu, Liming Xu, Song Zhang, Luping Liu, Yanlong Fang, Lei Wang
  • Hybrid valve train system
    Patent number: 10808579
    Abstract: For a given cylinder in the engine having two intake valves and two exhaust valves, one of the intake valves is driven by a bucket tappet, while the other intake valve is actuated via a roller finger follower. Similarly, one of the exhaust valves is driven by a bucket tappet, while the other exhaust valve is actuated via a roller finger follower. The intake valves read inputs form an intake camshaft, and the exhaust valves read inputs from an exhaust camshaft.
    Type: Grant
    Filed: October 23, 2019
    Date of Patent: October 20, 2020
    Assignee: Cummins Inc.
    Inventors: Darren Yaoshun Ting, David M. Barnes
  • Camshaft for a pump, in particular a high pressure fuel pump, and pump having a camshaft
    Patent number: 10808665
    Abstract: A camshaft (24), in particular for a pump (10), is proposed. The camshaft (24) has at least two cams (26, 28) which are arranged next to one another in the direction of the longitudinal axis (25) of the camshaft (24) and the cam elevations of which are arranged offset with respect to one another around the longitudinal axis (25) of the camshaft (24). An intermediate region (30) is provided between two adjacent cams (26, 28), and at least one bearing region (32) is arranged next to the cams (26, 28) in the direction of the longitudinal axis (25) of the camshaft (24).
    Type: Grant
    Filed: July 27, 2018
    Date of Patent: October 20, 2020
    Assignee: Robert Bosch GmbH
    Inventors: Michael Imhof, Robert Mayer
  • Method for controlling an internal combustion engine having a camshaft
    Patent number: 10808636
    Abstract: A method according to the invention for controlling an internal combustion engine having a camshaft whose phase with respect to a crankshaft can be adjusted by means of an electric adjustment device, and a control device comprises the steps S1 to S3, wherein in step S1 a stop request is output from the control device to the electric adjustment device. Subsequently, in step S2 a manipulated variable in the form of a pulse duty factor is output from the electric adjustment device, wherein the pulse duty factor counteracts a camshaft torque. In step S3, the direction of rotation of the camshaft is monitored, wherein in step S4, when a reversal of the direction of rotation of the camshaft is detected, an intensity level of this reversal of the direction of rotation is calculated by determining a rotational speed gradient.
    Type: Grant
    Filed: September 20, 2016
    Date of Patent: October 20, 2020
    Assignee: VITESCO TECHNOLOGIES GMBH
    Inventors: Wolfgang Stowasser, Suk-Ju Kim