change valve

A British term for a valve in an automatic transmission which raises the oil pressure as the vehicle speed increases. In North America it is called the shift valve.

Dictionary of automotive terms. 2015.

Look at other dictionaries:

  • valve — A device used to either open or close an opening to allow or prevent the flow of a liquid or gas from one place to another. There are many different types. See ABS relay valve accumultor valve air valve carburetor air control valve air gulp valve …   Dictionary of automotive terms

  • Valve cover racing — is a competitive event similar to the Pinewood derby, but vehicles are made from a valve cover from an internal combustion car engine, rather than of wood blocks, . Valve cover racing is most commonly seen at car shows.EventsRules and regulations …   Wikipedia

  • valve — [vælv] n [Date: 1400 1500; : Latin; Origin: valva part of a door ] 1.) a part of a tube or pipe that opens and shuts like a door to control the flow of liquid, gas, air etc passing through it ▪ heart valves ↑mouthpiece, ↑valve 2.) the part on a… …   Dictionary of contemporary English

  • valve — [ vælv ] noun count * 1. ) the part of a machine or piece of equipment that opens and closes in order to control the flow of air or liquid 2. ) the part of an organ or tube in your body that opens and closes to keep liquid flowing in the right… …   Usage of the words and phrases in modern English

  • Valve — This article is about the flow control device. For the game developer, see Valve Corporation. For the electronic component, see Vacuum tube. For other uses, see Valve (disambiguation). These water valves are operated by handles. A valve is a… …   Wikipedia

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  • Valve audio amplifier — A valve (UK) audio amplifier or vacuum tube (US) audio amplifier is a valve amplifier used for sound recording, reinforcement, or reproduction. Until the invention of solid state devices such as the transistor, all electronic amplification was… …   Wikipedia

  • valve */ — UK [vælv] / US noun [countable] Word forms valve : singular valve plural valves 1) the part of a machine or piece of equipment that opens and closes in order to control the flow of air or liquid 2) the part of an organ or tube in your body that… …   English dictionary

  • valve — noun Etymology: Latin valva; akin to Latin volvere to roll more at voluble Date: 14th century 1. archaic a leaf of a folding or double door 2. [New Latin valva, from Latin] a bodily structure (as the mitral valve) that closes temporarily a… …   New Collegiate Dictionary

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