专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US4651687A Automatic compression releasing device for four-cycle engine 失效
标题翻译：四冲程发动机自动压缩释放装置
公开(公告)号：US4651687A
公开(公告)日：1987-03-24
申请号：US811785
申请日：1985-12-20
申请人： Masanobu Yamashita , Hiroshi Takada , Takemi Inoue , Suguru Yamauchi
发明人： Masanobu Yamashita , Hiroshi Takada , Takemi Inoue , Suguru Yamauchi
IPC分类号： F01L13/08 , F02B75/02
CPC分类号： F01L13/085 , F02B2075/027
摘要： An automatic compression releasing device intended for reducing the pressure inside the combustion chamber of the four cycle engine at the start by opening and closing the intake or exhaust valve of the combustion chamber actuated by the cam on the cam shaft through the tappet. A single moving piece mounted, on the side of the gear integrated with the cam shaft, as enclosing the cam shaft, can slide over the side of the gear in a given direction, guided by two slots opened in the moving piece and two pins planted on the gear side. A tappet lifting arm is extended from the moving piece to such a position as to push up the tappet. At the start, the centrifugal force on the moving piece is designed not to exceed the opposing force, thus keeping the tappet lifting arm projected out of the cam base circle, and also retaining the returning force of the moving piece acting on the tappet lifting arm through the tappet being supported by the guide slots and pins. During the normal rpm, the centrifugal force on the moving piece overcomes aforesaid opposing force to slide the moving piece along said guide slots, bringing the tappet lifting arm level with or further down into the cam base circle.
摘要翻译：一种自动压缩释放装置，用于通过打开和关闭通过挺杆在凸轮轴上由凸轮致动的燃烧室的进气门或排气门，来降低四冲程发动机燃烧室内部的压力。安装在与凸轮轴一体化的齿轮一侧作为封闭凸轮轴的单个移动件可沿给定方向在齿轮的一侧滑动，由在移动件中打开的两个狭槽和两个销钉在齿轮方面。挺杆提升臂从移动件延伸到这样的位置，以推动挺杆。起动时，移动片上的离心力设计成不超过相反的力，因此保持挺杆提升臂伸出凸轮基圆，并保持作用在挺杆提升臂上的移动片的返回力通过挺杆由引导槽和销支撑。在正常转速期间，移动件上的离心力克服了上述相反的力，以沿着所述导向槽滑动运动件，使得挺杆提升臂处于或向下进入凸轮基圆。

IPRDB

热门服务

关于我们

友情链接

联系方式