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US06973906B2 Internal combustion engine provided with decompressing mechanism and method of adjusting valve lift for decompression 失效
提供减压机构的内燃机和减压阀门升程调节方法

Internal combustion engine provided with decompressing mechanism and method of adjusting valve lift for decompression
摘要：
A decompressing mechanism (D) for an internal combustion engine (E) is incorporated into a camshaft (15) provided with a bore (54) extending in the direction of the arrow (A) along the axis (L1) of rotation of the camshaft (15). The decompressing mechanism (D) includes a decompression member (80) formed by metal injection and integrally having a flyweight (81), a decompression cam (82) for exerting a valve-opening force through an exhaust rocker arm (48) on an exhaust valve, and an arm (83) connecting the flyweight (81) and the decompression cam (82). The flyweight (81) is supported for swing motion by a pin (71) on the camshaft (15). The axis (L2) of swing motion of the flyweight (81) is included in a plane (P4) substantially perpendicular to the axis (L1) of rotation, and does not intersect the axis (L1) of rotation and the bore (54) of the camshaft (15). The fully expanded decompression member (80) revolves in a cylindrical space of a small diameter around the camshaft (15).
摘要（中）：

用于内燃机（E）的减压机构（D）被并入设置有沿着箭头（A）的方向延伸的孔（54）的凸轮轴（15）中，该孔（54）沿着 凸轮轴（15）。 减压机构（D）包括通过金属喷射形成的减压构件（80），并且一体地具有飞重（81），减压凸轮（82），用于通过排气摇臂（48）在排气口上施加开阀力 阀和连接飞重（81）和减压凸轮（82）的臂（83）。 飞轮（81）由凸轮轴（15）上的销（71）支撑以进行摆动运动。 飞轮（81）的摆动运动的轴线（L 2）包含在基本上垂直于旋转轴线（L1）的平面（P 4）中，并且不与旋转轴线（L 1）相交， 凸轮轴（15）的孔（54）。 完全膨胀的减压构件（80）围绕凸轮轴（15）在小直径的圆柱形空间中旋转。

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