overhead camshaft

The effection on timing driving system by construction of the admission gear has been studied in this paper. A new effective design calculation way of the engine timing belt drive struction has been developed through designing and studying double overhead camshaft timing driving struction of 469Q engine.

通过469Q汽油机双顶置凸轮轴正时传动机构的设计研究，开发了一种有效的发动机正时同步带传动机构的设计计算方法，对发动机正时传动机构的设计具有重要参考价值；

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

这些发动机被称为双顶置凸轮轴 ( DOHC ) 发动机.

This is called an overhead camshaft arrangement.

这被叫为顶置凸轮轴装置.

Since 1958, an engine with a single overhead camshaft has been used.

从1958年起, 便已使用带有单顶置凸轮机的发动机.

For-line 4-cylinder engine using dual-overhead camshaft DOHC structure set CVTC ( continuously variable valve timing control ) technology.

发动机为直列4缸,采用DOHC双顶置凸轮轴结构集合CVTC ( 连续可变气门正时控制 ) 技术.