双顶置凸轮轴

双顶置凸轮轴

1

这些发动机被称为双顶置凸轮轴（OHC）动机。

These engines are known as dual overhead camshaft ( DOHC ) engines .
2

研究了摩托车发动机采用单轴平衡、双顶置凸轮轴、4气门、屋顶型燃烧室结构以及风、油双重冷却系统等先进技术的综合性能。

In this paper , one axis balancer mechanism , four valve , roof type combustion chamber and air oil double cooling system are investigated on a motorcycle engine .