piston ring

n. An adjustable split metal ring that fits around a piston and seals the gap between the piston and the cylinder wall.

piston ring

n (Automotive Engineering) a split ring, usually made of cast iron, that fits into a groove on the rim of a piston to provide a spring-loaded seal against the cylinder wall

pis′ton ring`

n. a metal ring, split so it can expand, placed around a piston to ensure a tight fit in the cylinder of an engine. [1865–70]

Thesaurus

Noun

piston ring - seal consisting of a split metal ring that seals the gap between a piston and the cylinder wallpiston, plunger - mechanical device that has a plunging or thrusting motionseal - fastener that provides a tight and perfect closure

Translations

Piston Ring

piston ring

[′pis·tən ‚riŋ] (design engineering) A sealing ring fitted around a piston and extending to the cylinder wall to prevent leakage. Also known as packing ring.

Piston Ring

a split, springy metal ring installed in the groove of a piston. The piston ring presses against the cylinder wall of a reciprocating engine as a result of its own tension or under pressure from a flat, steel spring. Piston rings may be of the compression type or oil-scraper type. Compression rings seal the gap between the piston and the cylinder and conduct heat from the piston; oil-scraper rings remove excess oil from the working surface. Piston rings are usually made of high-quality gray iron. Bronze piston rings are sometimes used in pumps.

piston ring

noun

Words related to piston ring

noun seal consisting of a split metal ring that seals the gap between a piston and the cylinder wall

Related Words

piston
plunger
seal

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