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Dictionary of Engineering, architecture and construction – materials & technologies, 2nd edition, la Maison du dictionnaire. 2007.
Dictionary of Engineering, architecture and construction – materials & technologies, 2nd edition, la Maison du dictionnaire. 2007.
gate-type check valve — A type of one way valve that uses a swinging gate, or flapper, to control fluid flow. In a multiengine aircraft vacuum system, they are used to isolate one of the pumps in case of the failure of the other. The flapper is at right angles to the… … Aviation dictionary
damper-type fire valve — A spring loaded butterfly automatic valve that shuts off air supply to the combustion heater if there is a fire or an overheating condition occurs. See damper valve … Aviation 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 — 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 Hammer Editor — Développeur Valve Software Dernière version … Wikipédia en Français
valve, expansion — Type of refrigerant control which maintains constant pressure in the low side of refrigerating mechanism. Valve is caused to operate by pressure in low or suction side, Often referred to as an automatic expansion valve or AEV … Dictionary of automotive terms
valve-in-head engine — [valv′in hed′] n. a type of internal combustion engine, as in many automobiles, having the intake and exhaust valves in the cylinder head instead of the block … English World dictionary
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
Valve RF amplifier — A valve RF amplifier (UK and Aus.) or tube amplifier (U.S.), is a device for electrically amplifying the power of an electrical , typically (but not exclusively) radio frequency signals.Low to medium power valve amplifiers for frequencies below… … 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 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