- piston head
- That portion of the piston above the top ring.See
Dictionary of automotive terms. 2015.
piston head
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Piston head — Piston Pis ton, n. [F. piston; cf. It. pistone piston, also pestone a large pestle; all fr. L. pinsere, pistum, to pound, to stamp. See {Pestle}, {Pistil}.] (Mach.) A sliding piece which either is moved by, or moves against, fluid pressure. It… … The Collaborative International Dictionary of English
Piston — Pis ton, n. [F. piston; cf. It. pistone piston, also pestone a large pestle; all fr. L. pinsere, pistum, to pound, to stamp. See {Pestle}, {Pistil}.] (Mach.) A sliding piece which either is moved by, or moves against, fluid pressure. It usually… … The Collaborative International Dictionary of English
Piston rod — Piston Pis ton, n. [F. piston; cf. It. pistone piston, also pestone a large pestle; all fr. L. pinsere, pistum, to pound, to stamp. See {Pestle}, {Pistil}.] (Mach.) A sliding piece which either is moved by, or moves against, fluid pressure. It… … The Collaborative International Dictionary of English
Piston valve — Piston Pis ton, n. [F. piston; cf. It. pistone piston, also pestone a large pestle; all fr. L. pinsere, pistum, to pound, to stamp. See {Pestle}, {Pistil}.] (Mach.) A sliding piece which either is moved by, or moves against, fluid pressure. It… … The Collaborative International Dictionary of English
head — [1] The upper part of something. [2] A term used to express the increase of energy content in a fluid pumped, expressed in units of energy per unit of mass, usually simply ft (feet). [3] A part of the engine which covers the piston and creates… … Dictionary of automotive terms
piston dome — The top surface of a piston. It is often shaped for better combustion and to prevent a valve from contacting the surface. Also called piston crown. See piston head … Dictionary of automotive terms
piston and cylinder — In mechanical engineering, a sliding cylinder with a closed head (the piston) that moves up and down (or back and forth) in a slightly larger cylindrical chamber (the cylinder) by or against pressure of a fluid, as in an engine or pump. The… … Universalium
Piston — For other uses, see Piston (disambiguation). Components of a typical, four stroke cycle, DOHC piston engine. (E) Exhaust camshaft, (I) Intake camshaft, (S) Spark plug, (V) Valves, (P) Piston, (R) Connecting rod, (C) Crankshaft, (W) Water jacket… … Wikipedia
head land — The uppermost piston land, subject to the highest thermal load … Dictionary of automotive terms
Cylinder head porting — refers to the process of modifying the intake and exhaust ports of an internal combustion engine to improve the quality and quantity of the air flow. Cylinder heads, as manufactured, are usually suboptimal due to design and manufacturing… … Wikipedia
