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    Variable valve actuation system of internal combustion engine
    1.
    发明公开
    Variable valve actuation system of internal combustion engine 审中-公开
    变量通风机Brennkraftmaschine

    公开(公告)号：EP1803905A2

    公开(公告)日：2007-07-04

    申请号：EP06024341.7

    申请日：2006-11-23

    申请人： HITACHI, LTD.

    发明人： Nakamura, Makoto ,  Hara, Seinosuke

    IPC分类号： F01L13/00 ,  F01L1/34

    CPC分类号： F01L13/0026 ,  F01L1/3442 ,  F01L2001/0475 ,  F01L2001/34469 ,  F01L2001/34479 ,  F01L2001/34483 ,  F01L2013/0073 ,  F01L2800/03

    摘要： In a variable valve actuation system of an internal combustion engine employing a variable valve actuator (1,2) capable of variably adjusting at least intake valve (4) closure timing depending on engine operating conditions, a processor (22) of a control unit is programmed to phase-advance the intake valve closure timing (IVC) to a predetermined timing value after a piston top dead center position and before a piston bottom dead center position on intake stroke during at least one of an engine starting period and an engine stopping period.
    The variable valve actuator (1,2) includes a biasing device (31,55-56) by which the intake valve closure timing is permanently biased toward the predetermined timing value.

    摘要翻译： 在使用能够根据发动机工作条件至少可选地调节至少进气门（4）关闭时间的可变气门致动器（1,2）的内燃机的可变气门致动系统中，控制单元的处理器（22） 被编程为在发动机起动期间和发动机停止期间中的至少一个期间将进气门关闭正时（IVC）相位推进到活塞上止点位置之后并且在进气冲程的活塞下死点位置之前的预定定时值 。 可变阀致动器（1,2）包括偏压装置（31,55-56），通过该偏压装置将进气门关闭定时永久地偏压到预定定时值。

    Valve operating apparatus for internal combustion engine
    2.
    发明公开
    Valve operating apparatus for internal combustion engine 审中-公开
    Ventilbetätigungsmechanismusfüreine Brennkraftmaschine

    公开(公告)号：EP1816320A2

    公开(公告)日：2007-08-08

    申请号：EP07001969.0

    申请日：2007-01-30

    申请人： HITACHI, LTD.

    发明人： Nakamura, Makoto ,  Kajiura, Mikihiro ,  Yamada, Yoshihiko ,  Hara, Seinosuke

    IPC分类号： F01L13/00

    CPC分类号： F01L13/0026 ,  F01L2013/0073 ,  Y10T74/2107

    摘要： A valve operating apparatus for an internal combustion engine including a drive cam (4), first and second swing cams (5), first and second motion transmission mechanisms (7) and first and second valve actuating members (6). The first and second swing cams (5) are provided with identical swing motion characteristic with respect to a rotation angle of the drive cam (4) through the first and second motion transmission mechanisms (7). The first swing cam (5) and the first valve actuating member (6) cooperate with each other to provide a valve lift amount of the engine valve (2) for the first group of cylinders with respect to a swing angle of the first swing cam (5) which is identical to a valve lift amount of the engine valve (2) for the second group of cylinders with respect to a swing angle of the second swing cam (5).

    摘要翻译： 一种用于内燃机的气门操作装置，包括驱动凸轮（4），第一和第二摆动凸轮（5），第一和第二运动传递机构（7）以及第一和第二气门致动构件（6）。 第一和第二摆动凸轮（5）通过第一和第二运动传递机构（7）相对于驱动凸轮（4）的旋转角度具有相同的摆动运动特性。 第一摆动凸轮（5）和第一阀致动构件（6）彼此协作以相对于第一摆动凸轮的摆动角度为第一组气缸提供发动机气门（2）的气门升程量 （5），其与第二组气缸相对于第二摆动凸轮（5）的摆动角度的发动机气门（2）的气门升程量相同。

    Valve operating apparatus for internal combustion engine
    3.
    发明公开
    Valve operating apparatus for internal combustion engine 审中-公开
    气门驱动机构用于内燃机

    公开(公告)号：EP1816320A3

    公开(公告)日：2010-08-11

    申请号：EP07001969.0

    申请日：2007-01-30

    申请人： HITACHI, LTD.

    发明人： Nakamura, Makoto ,  Kajiura, Mikihiro ,  Yamada, Yoshihiko ,  Hara, Seinosuke

    IPC分类号： F01L13/00

    CPC分类号： F01L13/0026 ,  F01L2013/0073 ,  Y10T74/2107

    摘要： A valve operating apparatus for an internal combustion engine including a drive cam (4), first and second swing cams (5), first and second motion transmission mechanisms (7) and first and second valve actuating members (6). The first and second swing cams (5) are provided with identical swing motion characteristic with respect to a rotation angle of the drive cam (4) through the first and second motion transmission mechanisms (7). The first swing cam (5) and the first valve actuating member (6) cooperate with each other to provide a valve lift amount of the engine valve (2) for the first group of cylinders with respect to a swing angle of the first swing cam (5) which is identical to a valve lift amount of the engine valve (2) for the second group of cylinders with respect to a swing angle of the second swing cam (5).