缸盖上装有气门、气门弹簧和摇臂轴上的摇臂，推杆推动这部分气门传动机构工作。
The cylinder head carries the valves, valve springs and the rockers on the rocker shaft, this part of the valve gear being worked by push-rods.
上海别克V6发动机配气机构为气门顶置、凸轮轴上置式，以齿形皮带同步传动。
The valve mechanism of the V6engine of passenger car BUICK is overhang valve, overhang camshaft type ad driven synchronized with tooth-shaped belt.
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