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。

Valve Burning. This is usually an exhaust-valve problem. Any condition that prevents normal exhaust-valve seating may lead to valve Burning.

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由于进气门关闭、排气门也已关闭，现在活塞上部的空间被密封了。

The space above the piston is now sealed due to the inlet valve closing and the exhaust valve having already closed.

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本文介绍了密封面作用长度的快速检测装置，此装置适用于发动机中进排气门的在线检测。

This paper introduced the fast detection device of acting length of the sealing face which is suitable for on line detection of inlet and exhaust valve of the engine.

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