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223 条记录 (耗时 0.022 秒)

    Rocker arm mechanism and engine assembly
    41.
    发明授权
    Rocker arm mechanism and engine assembly 有权

    公开(公告)号：US11891924B2

    公开(公告)日：2024-02-06

    申请号：US18025402

    申请日：2020-12-07

    申请人： WEICHAI POWER CO., LTD.

    发明人： Shenggang Guo ,  Fei Wang ,  Cheng Xu

    IPC分类号： F01L1/18 ,  F01L13/06 ,  F01L1/24 ,  F01L1/26

    CPC分类号： F01L1/181 ,  F01L1/2411 ,  F01L13/06 ,  F01L1/267 ,  F01L2001/2444

    摘要： A rocker arm mechanism includes a rocker arm shaft, a rocker arm, a valve clearance adjuster, a valve train, and a control valve. The rocker arm is rotatably disposed on the rocker arm shaft. The valve train includes a valve bridge. The rocker arm is provided with a plunger chamber. The valve clearance adjuster includes a hydraulic tappet slidably disposed in the plunger chamber. The plunger chamber is supplied with oil through an oil supply passage. The control valve is configured to open or close the oil supply passage. When the control valve opens the oil supply passage, the hydraulic tappet can abut against the valve bridge and eliminate the clearance between the valve bridge and the hydraulic tappet.

    Hydraulic lash adjuster
    43.
    发明授权
    Hydraulic lash adjuster 有权

    公开(公告)号：US10082052B2

    公开(公告)日：2018-09-25

    申请号：US15427865

    申请日：2017-02-08

    申请人： Caterpillar Inc.

    发明人： Ashwin A. Hattiangadi ,  Selvakumar Selvaraj

    IPC分类号： F01L1/18 ,  F01L1/24

    CPC分类号： F01L1/2411 ,  F01L1/053 ,  F01L1/18 ,  F01L1/181 ,  F01L1/2416 ,  F01L1/26 ,  F01L1/32 ,  F01L1/462 ,  F01L2101/00 ,  F01L2103/00

    摘要： A replaceable hydraulic lash adjuster and method for assembling such are disclosed. The replaceable hydraulic lash adjuster includes a body, a piston, a check valve and a spring. The body configured to be received in and released from a compartment of a rocker arm. The body including a sidewall surrounding a floor. The floor including a passage that extends between an upper cavity and a lower cavity of the body. The piston disposed in the lower cavity. The piston defining a pocket. A check valve is disposed inside the lower cavity and a spring is disposed inside the pocket. The replacable hydraulic lash adjuster is configured to be slidingly removeable from the rocker arm.

    Valve bridge assembly having replaceable sleeve inserts
    48.
    发明授权
    Valve bridge assembly having replaceable sleeve inserts 有权
    阀桥组件具有可更换的套筒插入件

    公开(公告)号：US09309788B2

    公开(公告)日：2016-04-12

    申请号：US13946439

    申请日：2013-07-19

    申请人： Electro-Motive Diesel, Inc.

    发明人： Adarsh Gopinatahn Nair ,  Laura Elise Rasmussen, III ,  Vijaya Kumar ,  Patricia Anne McWade

    IPC分类号： F01L1/18 ,  F01L1/26 ,  F01L1/24 ,  F01L1/14 ,  F01L1/047

    CPC分类号： F01L1/26 ,  F01L1/146 ,  F01L1/181 ,  F01L1/2411 ,  F01L2001/054 ,  F01L2105/00 ,  F01L2810/02 ,  Y10T137/0486

    摘要： A valve bridge assembly is disclosed for use with an internal combustion engine. The valve bridge assembly may have a valve bridge with a center portion, opposing lateral extensions, a central cavity formed within the center portion, and a bore formed within each of the opposing lateral extensions. The valve bridge assembly may also have a lash adjuster disposed within the central cavity, and a sleeve insert disposed within each bore of the opposing lateral extensions. Each sleeve insert may be configured to receive a corresponding valve stem.

    摘要翻译： 公开了一种用于内燃机的阀桥组件。 阀桥组件可以具有阀桥，其具有中心部分，相对的侧向延伸部，形成在中心部分内的中心腔，以及形成在每个相对的横向延伸部内的孔。 阀桥组件还可以具有设置在中心空腔内的间隙调节器，以及设置在相对侧向延伸部的每个孔内的套筒插入件。 每个套筒插入件可被构造成接收相应的阀杆。

    VARIABLE LOST MOTION VALVE ACTUATOR AND METHOD
    50.
    发明申请
    VARIABLE LOST MOTION VALVE ACTUATOR AND METHOD 审中-公开
    可变失速运动阀执行器和方法

    公开(公告)号：US20140311449A1

    公开(公告)日：2014-10-23

    申请号：US14323385

    申请日：2014-07-03

    申请人： Jacobs Vehicle Systems, Inc.

    发明人： Joesph M. Vorih ,  Jeffrey Mossberg ,  Richard Vanderpoel ,  Steven Ernest ,  Guy Paterson ,  John A. Schwoerer ,  Edward T. Leitkowski ,  Andrew Brzoska ,  Gheorghe Cosma

    IPC分类号： F01L13/06

    CPC分类号： F01L13/0015 ,  F01L1/053 ,  F01L1/08 ,  F01L1/185 ,  F01L1/2411 ,  F01L1/267 ,  F01L9/02 ,  F01L9/025 ,  F01L13/0005 ,  F01L13/06 ,  F01L13/085 ,  F01L2001/34446 ,  F01L2105/00 ,  F01L2800/01 ,  F01L2820/01 ,  F02D13/0234 ,  F02D41/0002 ,  F02D41/26 ,  F02D2041/001

    摘要： A lost motion engine valve actuation system and method of actuating an engine valve are disclosed. The system may comprise a valve train element, a pivoting lever, a control piston, and a hydraulic circuit. The pivoting lever may include a first end for contacting the control piston, a second end for transmitting motion to a valve stem and a means for contacting a valve train element. The amount of lost motion provided by the system may be selected by varying the position of the control piston relative to the pivoting lever. Variation of the control piston position may be carried out by placing the control piston in hydraulic communication with a control trigger valve and one or more accumulators. Actuation of the trigger valve releases hydraulic fluid allowing for adjustment of the control piston position. Means for limiting valve seating velocity, filling the hydraulic circuit upon engine start up, and mechanically locking the control piston/lever for a fixed level of valve actuation are also disclosed.

    摘要翻译： 公开了一种失速发动机气门致动系统和致动发动机气门的方法。 该系统可以包括气门机构元件，枢转杆，控制活塞和液压回路。 枢转杆可以包括用于接触控制活塞的第一端，用于将运动传递到阀杆的第二端和用于接触气门机构元件的装置。 可以通过改变控制活塞相对于枢转杆的位置来选择由系统提供的空动量。 可以通过将控制活塞与控制触发阀和一个或多个蓄能器液压连接来实现控制活塞位置的变化。 触发阀的启动释放液压流体，允许调节控制活塞位置。 还公开了用于限制阀座速度，在发动机起动时填充液压回路以及将控制活塞/杆机械地锁定在固定水平的阀致动的装置。