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    • 8. 发明申请
    • VARIABLE VALVE OPERATING APPARATUS FOR INTERNAL COMBUSTION ENGINE
    • 内燃机可变阀操作装置
    • US20110126786A1
    • 2011-06-02
    • US12676830
    • 2009-05-29
    • Akio KidookaToshiyuki Yano
    • Akio KidookaToshiyuki Yano
    • F01L1/34
    • F01L1/267F01L1/053F01L1/185F01L1/2405F01L13/0036F01L2001/0537F01L2013/0052F01L2105/00F01L2810/02F01L2820/031
    • Provided is a variable valve operating apparatus for an internal combustion engine, which can favorably improve the mounting environment of an actuator in the aspect of achieving the improvement of coolability and the reduction of stress. The apparatus includes a guide rail which is provided in the outer peripheral surface of a cylindrical part respectively fixed to a camshaft; a projection part which is disposed so as to be engageable and disengageable with the guide rail; and an actuator which is disposed so as to oppose the cylindrical part and can protrude the projection part toward the guide rail. At least a part of the actuator is disposed so as to fit in a oval-shaped region which is virtually obtained by linking a base circle of a main cam and a base circle of a main cam seen from the axial direction of the camshaft in a state in which the projection part is not protruded toward the guide rail.
    • 提供一种用于内燃机的可变气门操作装置,其可以在实现冷却性能的提高和应力的降低方面有利地改善致动器的安装环境。 该装置包括设置在分别固定在凸轮轴上的圆筒部的外周面的导轨, 突出部,其设置成可与导轨接合并脱离; 以及致动器,其被设置成与圆柱形部件相对,并且能够将突出部分朝向导轨突出。 致动器的至少一部分设置成配合在椭圆形区域中,该椭圆形区域实际上是通过将主凸轮的基圆和从凸轮轴的轴向方向看的主凸轮的基圆在 突出部未向导轨突出的状态。