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发明授权
CN100585134C 发动机 失效 - 权利终止

发动机
摘要：
一种发动机，包括：凸轮；与凸轮接触的具有第一端和第二端的凸轮从动臂，凸轮从动臂被配置成围绕靠近第一端的枢轴点枢转，且在靠近第二端处接合凸轮；阀、摇臂和推杆，摇臂和推杆将阀连接到凸轮从动臂；具有弯曲槽的曲轴箱；和连接部件，其可旋转地将凸轮从动臂连接到曲轴箱，其中连接部件穿过弯曲槽，并可以移动到弯曲槽中的不同位置，使得枢轴点相对于曲轴箱移动，并且连接部件的移动对阀定时提供精细调节，而对阀定时的粗调可通过改变与凸轮相关联的第一齿轮相对于驱动第一齿轮的附加齿轮的转动位置来实现；从而可以调节凸轮从动臂相对于曲轴箱的位置，使得凸轮从动臂和凸轮的接合发生改变。
摘要（英）：

A valve train in an internal combustion engine, and a method of adjusting the valve timing setting of a valve in such a valve train, are disclosed. In one embodiment, the present invention relates to an engine that includes a crankcase with a cylinder, a valve, a push rod, and a rocker arm supported by the crankcase and coupling the valve to the push rod. The internal combustion engine further includes a cam rotatably supported by the crankcase, and a cam follower arm having first and second ends and, proximate the second end, having bottom and top surfaces. The cam follower arm is rotatably supported by the crankcase about a pivot point proximate the first end. The bottom surface proximate the second end slidingly interfaces the cam, and the top surface proximate the second end interfaces the push rod.

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