The influence of engine speeds and valve gaps on the valve seating force has been examined.
讨论了转速与气门间隙对落座力的影响。
Valve Burning. This is usually an exhaust-valve problem. Any condition that prevents normal exhaust-valve seating may lead to valve Burning.
这种情况通常发生在排气门。任何妨碍排气门密封面贴合的情况都会导致气门烧伤。
The actual valve closing phases have been calculated, analyzed and determined in accordance with the interference signals caused by valve seating impulse in the low pressure indicator diagram.
计算分析了进排气门实际关闭相位，并根据低压示功图中气门落座冲击引起的干扰信号间接确定发动机运转时的实际关闭相位。
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.
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.
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。
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