camshaft


camshaft
/kam"shaft', -shahft'/, n.
a shaft bearing integral cams.
[1875-80; CAM + SHAFT]

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      in internal-combustion engines, rotating shaft with attached disks of irregular shape (the cams), which actuate the intake and exhaust valves of the cylinders. The cams and the camshaft are usually formed as a unit, with the cams set at angles so as to open and close the valves in a prescribed sequence as the cams rotate. A separate camshaft for each row of cylinders is driven by gears or chains from the crankshaft.

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Universalium. 2010.

Look at other dictionaries:

  • camshaft — n. a shaft that has cams attached to it, forming part of a mechanical device. [WordNet 1.5] …   The Collaborative International Dictionary of English

  • camshaft — ► NOUN ▪ a shaft with one or more cams attached to it, especially one operating the valves in an internal combustion engine …   English terms dictionary

  • camshaft — [kam′shaft΄] n. a shaft of which a cam is an essential part, or to which a cam is fastened …   English World dictionary

  • Camshaft — The camshaft is an apparatus often used in piston engines to operate poppet valves. It consists of a cylindrical rod running the length of the cylinder bank with a number of oblong lobes or cams protruding from it, one for each valve. The cams… …   Wikipedia

  • camshaft — A shaft with cam lobes (bumps) which is driven by gears, a belt, or a chain from the crankshaft. The lobes push on the valve lifters to cause the valves to open and close. The camshaft turns at half the speed of the crankshaft. Also see double… …   Dictionary of automotive terms

  • camshaft — UK [ˈkæmˌʃɑːft] / US [ˈkæmˌʃæft] noun [countable] Word forms camshaft : singular camshaft plural camshafts a bar in an engine, fixed to a cam …   English dictionary

  • camshaft — [[t]kæ̱mʃɑːft, ʃæft[/t]] camshafts N COUNT A camshaft is a rod in an engine and works to change circular motion into motion up and down or from side to side …   English dictionary

  • camshaft — A straight, gear driven shaft that contains lobes used to operate the intake and exhaust valves of a reciprocating engine. The camshaft is geared to the crankshaft in such a way that valves close and open at the correct time relative to the… …   Aviation dictionary

  • camshaft — kumštelinis velenas statusas T sritis automatika atitikmenys: angl. camshaft vok. Exzenterwelle, f; Nockenwelle, f rus. кулачковый вал, m; распределительный вал, m pranc. arbre à cames, m …   Automatikos terminų žodynas

  • camshaft — noun Date: 1847 a shaft to which a cam is fastened or of which a cam forms an integral part …   New Collegiate Dictionary


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