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open-center valve

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См. также в других словарях:

  • open-center selector valve — A type of hydraulic selector valve used in an open center hydraulic system that allows hydraulic fluid to flow from the pump to the reservoir when the selector valve is placed in neutral (i.e., when none of the actuating cylinders are receiving… …   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 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 lag — The number of degrees of crankshaft rotation after a piston passes the top or bottom center of its stroke, at which the intake or exhaust valves open or close. For example, if the exhaust valve closes at 60° of crankshaft rotation after the… …   Aviation dictionary

  • valve lead — The number of degrees of the crankshaft before the top or bottom center, at which the intake or exhaust valves open or close. For example, if the intake valve opens when the crankshaft is 25° before the piston reaches the top of the exhaust… …   Aviation dictionary

  • valve overlap — The portion of the operating cycle of a reciprocating engine in which, when the piston is passing TDC (top dead center) on the exhaust stroke, both the intake and exhaust valves are open. Valve overlap increases the efficiency of the engine… …   Aviation dictionary

  • center-hung float — This type of carburetor float pivots on an axis that s parallel with the vehicle axles. It s a better float design than a side hung float during high speed cornering because the float isn t affected by centrifugal force, so it won t pull the… …   Dictionary of automotive terms

  • Mitral valve — Anterior (frontal) view of the opened heart. White arrows indicate normal blood flow. (Mitral valve labeled at center right.) …   Wikipedia

  • Schrader valve — The Schrader valve, invented by August Schrader in the 1890s, consists of a valve stem into which a valve core is threaded, and is used on virtually all automobile tires and wider rimmed bicycle tires. The valve core is a poppet valve assisted by …   Wikipedia

  • Solenoid valve — A solenoid valve is an electromechanical valve for use with liquid or gas. The valve is controlled by an electric current through a solenoid: in the case of a two port valve the flow is switched on or off; in the case of a three port valve, the… …   Wikipedia

  • Aortic valve stenosis — Classification and external resources ICD 10 I35.0, I06.0, Q23.0 …   Wikipedia

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