双顶置凸轮轴
- 网络dohc;Double overhead camshaft;SOHC
双顶置凸轮轴-
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 .
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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 .