main valve
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Valve oil — is a lubricant for valves of brass instruments. It is typically comprised mostly of mineral oil with a small amount of other ingredients. Use of valve oil Besides lubricating the moving parts of the valve, valve oil provides corrosion protection… … Wikipedia
Valve Hammer Editor — Développeur Valve Software Dernière version … Wikipédia en Français
valve of Heister — valve of Hei·ster hī stər n SPIRAL VALVE Heister Lorenz (1683 1758) German anatomist and surgeon. Heister was one of the founders of scientific surgery. His works on medicine, anatomy, and surgery were widely read for several generations. His… … Medical dictionary
valve — [valv] n. [ME, a door leaf < L valva, leaf of a folding door, akin to volvere, to roll: see WALK; VALVE senses 3, 4, 8 < ModL valva < L] 1. Archaic either of the halves of a double door or any of the leaves of a folding door 2. a gate… … English World dictionary
valve bounce — noun The unintended secondary opening of an engine valve due to inadequate rigidity of various parts in the valve gear • • • Main Entry: ↑valve … Useful english dictionary
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
Valve stem — For the shaft which transmits motion from the outside to the inside of a valve, see Valve#Stem. A valve stem is a self contained valve which opens to admit gas to a chamber (such as air to inflate a tire), and is then automatically closed and… … Wikipedia
Valve amplifier — A valve amplifier or tube amplifier is a type of electronic amplifier that make use of vacuum tubes instead of solid state semiconductor devices (such as transistors). As any other electronic amplifier they serve to increase the power and/or… … Wikipedia
valve — valveless, adj. valvelike, adj. /valv/, n., v., valved, valving. n. 1. any device for halting or controlling the flow of a liquid, gas, or other material through a passage, pipe, inlet, outlet, etc. 2. a hinged lid or other movable part that… … Universalium
Valve gear — The valve gear of a steam engine is the mechanism that operates the inlet and exhaust valves to admit steam into the cylinder and allow exhaust steam to escape, respectively, at the correct points in the cycle. It is sometimes referred to as the… … Wikipedia
Valve audio amplifier - technical — Circuitry and performance Characteristics of valves Valves are very high input impedance (near infinite in most circuits) and high output impedance devices. They are also high voltage / low current devices.While valves themselves are described… … Wikipedia
