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2. 发明授权

US06349688B1 Direct lever overhead valve system 失效
标题翻译：直杆式顶管阀系统
公开(公告)号：US06349688B1
公开(公告)日：2002-02-26
申请号：US09507070
申请日：2000-02-18
申请人： Gary J. Gracyalny , Richard J. Fotsch , David Procknow , Art Poehlman , Scott A. Funke
发明人： Gary J. Gracyalny , Richard J. Fotsch , David Procknow , Art Poehlman , Scott A. Funke
IPC分类号： F01L118
CPC分类号： F02B63/02 , B21C23/142 , F01L1/024 , F01L13/08 , F01L13/085 , F02B75/16
摘要： An overhead valve engine including a cylinder bore having an outer end; and a crankshaft assembly including a substantially straight crankshaft, a substantially cylindrical journal eccentrically mounted on the crankshaft, a one-piece connecting rod rotatably mounted on the journal, and a counterweight mounted on the crankshaft. The engine also includes a cam shaft having at least one cam surface and an axis inward of the outer end of the cylinder bore; two valves having opened and closed positions; two valve stems, each valve stem being attached to a valve; and two generally L-shaped and pivotably mounted valve operating levers, each lever including a first lever arm having a cam follower in contact with the cam surface, a pivot axis about which the lever pivots, and a valve arm in contact with a valve stem, where movement of the lever caused by the cam surface causes the lever to pivot and the valve arm to depress the valve stem and thus open the valve.
摘要翻译：一种顶置阀发动机，其包括具有外端的气缸孔; 以及曲轴组件，其包括基本上直的曲轴，偏心地安装在曲轴上的基本上圆柱形的轴颈，可旋转地安装在轴颈上的一体式连接杆和安装在曲轴上的配重。发动机还包括凸轮轴，该凸轮轴具有至少一个凸轮表面和位于气缸孔的外端内侧的轴线; 两个阀门具有打开和关闭位置; 两个阀杆，每个阀杆连接到阀门; 以及两个大致L形且可枢转地安装的阀操作杆，每个杠杆包括第一杠杆臂，该第一杠杆臂具有与凸轮表面接触的凸轮从动件，杠杆枢转的枢轴轴线以及与阀杆接触的阀臂其中由凸轮表面引起的杆的移动导致杆枢转并且阀臂压下阀杆并因此打开阀。

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