★ピストンリングはどのくらい摩耗する？その役割と重要性

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エンジンの重要な部品であるピストンリング。ピストンの溝に収まる小さく目立たない存在ですが、これがないといろいろ困ります。
シリンダーと接触する部分であり、摩擦に加えて高温の燃焼圧力を受ける厳しい環境に耐えています。
ピストンリングがどのように作られ、エンジンの中で機能しているのか見ていきます。


参照
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