split piston

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• piston ring — n. a thin split ring fitted into a groove around a piston to seal the cylinder, transfer heat, and control cylinder wall lubrication …   English World dictionary

• piston — A round or cylindrical plug, which closed at one end and open at the other. It slides up and down in the cylinder. It is attached to the connecting rod and when the fuel charge is fired, will transfer the force of the explosion to the connecting… …   Dictionary of automotive terms

• split skirt — The piston skirt is manufactured to be either partially or completely split. When the piston warms and begins to expand, the split closes instead of binding in the cylinder …   Dictionary of automotive terms

• piston ring — A metal, split ring installed in the groove on the outside wall of the piston. The ring contacts the sides of the ring groove and also rubs against the cylinder wall thus sealing the space between the piston and the wall. Poor rings can cause… …   Dictionary of automotive terms

• piston expansion — Because pistons are usually made of aluminum and the cylinder walls are made of iron, the piston will expand more rapidly than the cylinder when they get hot. Some type of compensation needs to be made for this expansion or the piston will seize… …   Dictionary of automotive terms

• split skirt piston — A precursor of the modern solid piston skirt, with a narrow slot in one side of the piston to allow for expansion …   Dictionary of automotive terms

• piston ring — noun seal consisting of a split metal ring that seals the gap between a piston and the cylinder wall • Hypernyms: ↑seal • Part Holonyms: ↑piston, ↑plunger …   Useful english dictionary

• Split cycle engine — The split cycle engine is a type of internal combustion engine. Design In a conventional otto cycle engine, each cylinder performs four strokes per cycle: intake, compression, power, and exhaust. This means that two revolutions of the crankshaft… …   Wikipedia

• piston ring — noun Date: 1867 a springy split metal ring for sealing the gap between a piston and the cylinder wall …   New Collegiate Dictionary

• piston ring — a metallic ring, usually one of a series, and split so as to be expansible, placed around a piston in order to maintain a tight fit, as inside the cylinder of an engine. Also called packing ring, ring. [1865 70] * * * …   Universalium

• piston ring — pis′ton ring n. mac a metal ring, split so it can expand, placed around a piston to ensure a tight fit in the cylinder of an engine • Etymology: 1865–70 …   From formal English to slang