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    Multi-link variable compression ratio engine
    2.
    发明公开
    Multi-link variable compression ratio engine 有权
    Mehrfachverbindungs-Motor mit variablemVerdichtungsverhältnis

    公开(公告)号：EP2055914A3

    公开(公告)日：2012-03-28

    申请号：EP08167313.9

    申请日：2008-10-22

    申请人： Nissan Motor Co., Ltd.

    发明人： Hiyoshi, Ryosuke ,  Tanaka, Yoshiaki ,  Takemura, Shinichi

    IPC分类号： F02B75/04

    CPC分类号： F02B75/048

    摘要： A multi-link variable compression ratio engine is provided with a crankshaft (12), a piston (11), a control shaft (20), a linkage, a motor (35) and a reduction mechanism. The crankshaft (12) moves the piston (11) within an engine cylinder. The control shaft (20) has an eccentric axle eccentric relative to its center-axis. The linkage operatively connects the piston to the crankshaft and the crankshaft (12) to the eccentric axle of the control shaft (20). The motor (35) rotates the control shaft (20) so a top-dead-center position of the piston (11) changes to vary compression ratios by changing the positions of the eccentric axle and the linkage. The reduction mechanism (30) couples the motor (35) to the control shaft (20) to transmit a reduced rotation of the motor to the control shaft so a reduction ratio of a rotation angle of the motor to a rotation angle of the control shaft is less at high-compression ratios than at intermediate compression ratios.

    摘要翻译： 多连杆可变压缩比发动机设置有曲轴（12），活塞（11），控制轴（20），联动装置，电动机（35）和减速机构。 曲轴（12）将发动机气缸内的活塞（11）移动。 控制轴（20）具有相对于其中心轴偏心的偏心轴。 连杆将活塞与曲轴和曲轴（12）操作地连接到控制轴（20）的偏心轴。 电机（35）使控制轴（20）旋转，使得活塞（11）的上止点位置改变以通过改变偏心轴和连杆的位置来改变压缩比。 减速机构30将电动机35与控制轴20连结，将电动机的转动减小到控制轴，使得电动机的旋转角度与控制轴的旋转角度的减小比 在高压缩比下比在中间压缩比下更小。

    Valvetrain mechanism of engine
    6.
    发明公开
    Valvetrain mechanism of engine 有权
    Ventiltriebmechanismus eines汽车

    公开(公告)号：EP2025886A1

    公开(公告)日：2009-02-18

    申请号：EP08162134.4

    申请日：2008-08-11

    申请人： Nissan Motor Co., Ltd.

    发明人： Arinaga, Tsuyoshi ,  Takemura, Shinichi ,  Fukami, Toru

    IPC分类号： F01L13/00 ,  F01L1/26 ,  F01M11/02

    CPC分类号： F01L13/0026 ,  F01L1/267 ,  F01L2013/0073 ,  F01L2105/00 ,  F01L2810/02 ,  Y10T74/20882

    摘要： A valvetrain mechanism of an engine, including a drive shaft configured to rotate in synchronization with the engine, a link arm having a large end and a small end, the drive shaft being inserted into and passed through the large end, a valve lift control shaft disposed parallel to the drive shaft and having an eccentric portion, an oscillating arm disposed rotatably at the eccentric portion of the valve lift control shaft and interconnected with the small end of the link arm via a first rotation support point, a link rod interconnected with the oscillating arm via a second rotation support point positioned at a same side as the first rotation support point with respect to the valve lift control shaft, and an oscillating cam interconnected with the link rod via a third rotation support point and operated correspondingly with an operation of the drive shaft to thereby open a valve. A thickness of the small end of the link arm in a direction of the drive shaft is thinner than a thickness of the large end of the link arm in the direction of the drive shaft.

    摘要翻译： 发动机的气门机构包括构造成与发动机同步地旋转的驱动轴，具有大端和小端的连杆臂，驱动轴插入并穿过大端，气门升程控制轴 平行于驱动轴设置并且具有偏心部分，摆动臂可旋转地设置在气门升程控制轴的偏心部分处，并经由第一旋转支撑点与连杆臂的小端部互连， 摆动臂经由与第一旋转支撑点相对于气门升程控制轴位于同一侧的第二旋转支撑点，以及通过第三旋转支撑点与连杆相互连接的摆动凸轮，并相应地操作 驱动轴从而打开阀。 连杆臂的小端在驱动轴的方向上的厚度比连杆臂的大端在驱动轴的方向上的厚度薄。

    Variable-valve-actuation apparatus for internal combustion engine
    9.
    发明公开
    Variable-valve-actuation apparatus for internal combustion engine 有权
    可变风管机构Brennkraftmaschine

    公开(公告)号：EP1026370A2

    公开(公告)日：2000-08-09

    申请号：EP00101943.9

    申请日：2000-02-01

    申请人： UNISIA JECS CORPORATION ,  Nissan Motor Co., Ltd.

    发明人： Nakamura, Makoto, c/o Unisia Jecs Corp. ,  Takemura, Shinichi ,  Miyazato, Yoshiaki, c/o Unisia Jecs Corp. ,  Yamada, Yoshihiko, c/o Unisia Jecs Corp. ,  Nohara, Tsuneyasu ,  Hibi, Tsutomu, c/o Unisia Jecs Corp.

    IPC分类号： F01L13/00

    CPC分类号： F01L13/0026 ,  F01L13/0021

    摘要： In a VVA apparatus for an internal combustion engine wherein the position of contact of a cam face of a VO cam with respect to the top face of a valve lifter is changed in accordance with a change in a rocking fulcrum of a rocker arm to alter the valve lift, the maximum valve lift is obtained in a first rotated position of a control shaft where an axis of a control cam is adjacent to a driving shaft. The minimum valve lift is obtained in a second rotated position of the control shaft where the axis of the control cam is positioned near a first pivotal point of the rocker arm and a crank arm with respect to a first line connecting the axis of the control shaft and the axis of the control cam upon the maximum valve lift.

    摘要翻译： 在用于内燃机的VVA装置中，相对于气门挺杆的顶面的VO凸轮的凸轮面的接触位置根据摇臂的摇摆支点的变化而改变， 气门升程，在控制轴的轴线与驱动轴相邻的控制轴的第一旋转位置获得最大气门升程。 在控制轴的第二旋转位置中获得最小气门升程，其中控制凸轮的轴线位于摇臂的第一枢转点附近，并且相对于连接控制轴的轴线的第一线 和最大气门升程时控制凸轮的轴线。