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1. 发明授权

US5301636A Valve operating mechanism of internal combustion engine 失效
标题翻译：内燃机阀门操作机构
公开(公告)号：US5301636A
公开(公告)日：1994-04-12
申请号：US92108
申请日：1993-07-16
申请人： Makoto Nakamura
发明人： Makoto Nakamura
IPC分类号： F01L1/26 , F01L13/00 , F02B31/02 , F02D13/02 , F01K1/34
CPC分类号： F01L1/267
摘要： On a main rocker arm, there is arranged a pivotal sub-rocker arm. A rocker arm coupling mechanism is employed which, under a given condition of an associated engine, couples tightly the main rocker arm and the sub-rocker arm to cause the main rocker arm to pivot in accordance with rotation of a higher lift cam. First and second tappet members are carried by the main rocker arm to actuate two intake or exhaust valves of the engine in response to the pivoting movement of the main rocker arm. The second tappet member is loosely connected to the main rocker arm so that, under a certain condition, the second tappet member fails to transmit the pivoting movement of the main rocker arm to the associated valve. A tappet locking mechanism is further employed which, under a given operation condition of the engine, locks the second tappet member to the main rocker arm thereby to ensure the transmission of the pivoting movement of the main rocker arm to the associated valve.
摘要翻译：在主摇臂上设置有一个枢轴的副摇臂。采用摇臂连接机构，在相关联的发动机的给定条件下，主摇臂和副摇臂紧紧地联接，以使主摇臂根据较高提升凸轮的旋转而枢转。第一和第二挺杆构件由主摇臂承载以响应于主摇臂的枢转运动致动发动机的两个进气门或排气门。第二挺杆构件松动地连接到主摇臂，使得在一定条件下，第二挺杆构件不能将主摇臂的枢转运动传递到相关联的阀。进一步采用挺杆锁定机构，其在发动机的给定操作条件下将第二挺杆构件锁定到主摇臂，从而确保主摇臂的枢转运动传递到相关联的阀。

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