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1.发明公开Variable valve driving apparatus of internal combustion engine 审中-公开变量Ventilsteuervorrichtung eines动力驱动器
公开(公告)号：EP2025887A1
公开(公告)日：2009-02-18
申请号：EP08162135.1
申请日：2008-08-11
发明人： Takemura, Shinichi , Fukami, Toru
CPC分类号： F01L13/0026 , F01L1/267 , F01L2013/0073 , F01L2105/00 , F01L2810/02 , Y10T74/20882
摘要： A variable valve driving apparatus of an internal combustion engine, including a drive shaft rotatably supported by a cam bracket, a drive cam disposed about an outer periphery of the drive shaft, a link arm having a first end connected to the drive cam, an oscillating cam extending from the drive cam configured to press and release a drive valve of the engine to open and close the drive valve, a link rod having a first end rotatably connected to the oscillating cam, and a control shaft rotatably supported by the cam bracket. The control shaft includes a main shaft rotatably supported by the cam bracket, an eccentric shaft spaced apart from the main shaft, and a plurality of webs connecting the main shaft and the eccentric shaft. The eccentric shaft is connected to an oscillating arm configured to transfer a drive force of the drive cam. The oscillating arm has a first portion rotatably connected to a second end of the link arm and a second portion rotatably connected to a second end of the link rod, the first and second portions being spaced apart axially with respect to the eccentric shaft. A first flow path for supplying lubricant to a first sliding contact area between the oscillating arm and the eccentric shaft is formed through the control shaft. The first flow path extends from the main shaft to the eccentric shaft through a web located beside the second portion of the oscillating arm.
摘要翻译： 一种内燃机的可变气门驱动装置，包括由凸轮支架可旋转地支撑的驱动轴，围绕驱动轴的外周设置的驱动凸轮，具有连接到驱动凸轮的第一端的连杆臂， 凸轮从驱动凸轮延伸，所述驱动凸轮被构造成按压和释放发动机的驱动阀以打开和关闭驱动阀，具有可旋转地连接到摆动凸轮的第一端的连杆和由该凸轮支架可旋转地支撑的控制轴。 控制轴包括由凸轮支架可旋转地支撑的主轴，与主轴间隔开的偏心轴和连接主轴和偏心轴的多个腹板。 偏心轴连接到构造成传递驱动凸轮的驱动力的摆动臂。 摆动臂具有可旋转地连接到连杆臂的第二端的第一部分和可旋转地连接到连杆的第二端的第二部分，第一和第二部分相对于偏心轴轴向隔开。 通过控制轴形成用于将润滑剂供给到摆动臂和偏心轴之间的第一滑动接触区域的第一流路。 第一流路通过位于摆动臂的第二部分旁边的腹板从主轴延伸到偏心轴。
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公开(公告)号：EP2025886B1
公开(公告)日：2011-10-26
申请号：EP08162134.4
申请日：2008-08-11
CPC分类号： F01L13/0026 , F01L1/267 , F01L2013/0073 , F01L2105/00 , F01L2810/02 , Y10T74/20882
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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
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。
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