Automotive Dictionary: Compression Ring

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Automotive Dictionary: Compression Ring
Throughout this site we use many technical terms, and given the breadth of readership our site enjoys, sometimes we are remiss and incorrectly assume everyone knows what we are referring to. For those that do not, here are some explanations of the technical terms use.
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Compression Ring


The piston ring fitted to the top groove or grooves of a piston. This flexible ring is designed to prevent leakage of gas past the piston and the cylinder wall.

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