VALVE OPENING-CLOSING TIMING CONTROL DEVICE

    公开(公告)号:EP3112624B1

    公开(公告)日:2018-10-03

    申请号:EP15754571.6

    申请日:2015-02-13

    Abstract: To construct a valve opening and closing timing control apparatus which may restrain a fluctuation of a relative rotational phase by a supply of fluid to an advanced angle chamber and a retarded angle chamber even in a case where a leakage amount of fluid from the advanced angle chamber and the retarded angle chamber increases with an increase of a temperature. A driven-side rotational member is connected to a camshaft by a mounting member and a spool is movably provided at an inner portion of a tubular wall portion of the mounting member. A first flow passage connecting a first port of the tubular wall portion and the advanced angle chamber to each other and a second flow passage connecting a second port of the tubular wall portion and the retarded angle chamber to each other are provided at the driven-side rotational member. A thermal expansion coefficient of a material forming the driven-side rotational member is greater than a thermal expansion coefficient of a material forming the mounting member.

    CYLINDER HEAD OF INTERNAL COMBUSTION ENGINE
    3.
    发明公开

    公开(公告)号:EP3379064A1

    公开(公告)日:2018-09-26

    申请号:EP18160636.9

    申请日:2018-03-08

    Abstract: A cylinder head of an internal combustion engine includes a cylinder head main body which is formed with a main body side plug insertion hole into which an ignition plug is inserted, a cam holder which is fixed to the cylinder head main body and forms cam bearing portions together with the cylinder head main body, wherein the cam bearing portions rotatably support an intake camshaft and an exhaust camshaft, respectively, and wherein the cam holder is formed with a holder side plug insertion hole which communicates with the main body side plug insertion hole and into which the ignition plug is inserted, and a knock pin which is disposed across the main body side plug insertion hole and the holder side plug insertion hole to restrict assembly positions of the cam holder and the cylinder head main body.

    PUSHROD ASSEMBLY
    5.
    发明公开
    PUSHROD ASSEMBLY 审中-公开

    公开(公告)号:EP3169880A4

    公开(公告)日:2018-03-28

    申请号:EP15822488

    申请日:2015-07-15

    Abstract: Systems for actuating at least two engine valves comprise a valve bridge operatively connected to the at least two engine valves and having a hydraulically-actuated lost motion component. The lost motion component comprises a lost motion check valve disposed therein. A rocker arm has a motion receiving end configured to receive valve actuation motions from a valve actuation motion source and a motion imparting end for conveying the valve actuation motions and hydraulic fluid to the lost motion component. The rocker arm is in fluid communication with a hydraulic fluid supply. The systems also comprise an accumulator in fluid communication with the hydraulic fluid supply and disposed upstream of the lost motion check valve. In all embodiments, a fluid supply check valve may be disposed upstream of the accumulator and configured to prevent flow of hydraulic fluid from the accumulator back to the hydraulic fluid supply.

    COLLAPSIBLE PUSHROD VALVE ACTUATION SYSTEM FOR A RECIPROCATING PISTON MACHINE CYLINDER
    6.
    发明公开
    COLLAPSIBLE PUSHROD VALVE ACTUATION SYSTEM FOR A RECIPROCATING PISTON MACHINE CYLINDER 审中-公开
    往复式活塞机筒用可折叠推杆阀门驱动系统

    公开(公告)号:EP3212902A1

    公开(公告)日:2017-09-06

    申请号:EP15854135.9

    申请日:2015-10-28

    Abstract: A valve actuation system is described containing a collapsible pushrod device for use in a reciprocating piston machine cylinder such as an engine. The collapsible pushrod device replaces a conventional pushrod. The system can include a driver base, plunger, and a deactivation pin assembly. In normal operation, the pins lock the driver base and plunger together thereby providing regular valve motion. Under selected conditions, the pin assembly controller unlocks the driver base from the plunger. Valve lift is reduced or eliminated. When eliminated, the cylinder is deactivated. The system can vary the effective compression ratio between higher for cold starting and other selected operating conditions and lower for warmed-up running, as well as trap additional exhaust residuals to assist starting and light load. This is especially useful for Diesel engines. Various means may be used to unlock the pins including oil pressure, bi-metal spring temperature, or electromagnetic activation. The telescoping motion which limits the motion of the valve may occur in one or more steps.

    Abstract translation: 描述了一种气门致动系统,其包含用于诸如发动机的往复活塞机筒中的可折叠推杆装置。 可折叠的推杆装置取代了传统的推杆。 该系统可以包括驱动器基座,活塞和停用销组件。 在正常操作中,销钉将驱动器底座和柱塞锁定在一起,从而提供定期阀门运动。 在选定的条件下,销组装控制器将从驱动柱塞上解锁驱动器底座。 气门升程减少或消除。 消除后,气缸停用。 该系统可以改变冷起动和其他选定运行条件下较高的有效压缩比,而在加热运行时可以降低有效压缩比,并可捕获附加的排气残余物以辅助启动和轻载。 这对柴油发动机特别有用。 可以使用各种装置来解锁销,包括油压,双金属弹簧温度或电磁激活。 限制阀的运动的伸缩运动可以在一个或多个步骤中发生。

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