| 释义 |
scraper ring scraper ring[′skrāp·ər ‚riŋ] (mechanical engineering) A piston ring that scrapes oil from a cylinder wall to prevent it from being burned. scraper ringThe bottom ring on a piston whose function is to scrape lubricating oil away from the cylinder walls of a reciprocating engine. This prevents the oil from getting into the combustion chamber of the cylinder. Also called a wiper ring. |