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活塞环的种类有哪两种
更新时间: 2020-11-02 00:00:00  

活塞环的种类有压缩环和机油环两种,压缩环可用来密封燃烧室内的可燃混合气体,活塞环是一种具有较大向外扩张变形的金属弹性环,它被装配到剖面与其相应的环形槽内。

气环的作用是保证活塞与气缸间的密封.防止气缸中的高温、高压燃气大量漏入曲轴箱,同时还将活塞顶部的大部分热量传导到气缸壁,再由冷却水或空气带走。

关键词: 活塞环 种类

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