因而具有较强的发动机气门摇臂机构总成及其它金属制品的开发、生产能力。
Therefore, we are comparatively strong in development and production of motor valve rocker framework assembly and other metal products.
现代汽车发动机，尤其是轿车发动机，已普遍采用有液力间隙调节器（HLA）的气门机构。
The valve mechanism with hydraulic lash adjuster(HLA)has generally used in the modern automotive engine, especially in the car engine.
试验结果表明发动机低速时配气机构噪声主要由气门间隙敲击引起的，而高速时主要由气门落座时撞击引起的。
Test result indicates that the main noise source is the valve clearance impact under the condition of low speed, while the main source is valve-seating impact under the condition of high speed.
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