direction-control valve
11control system — Means by which a set of variable quantities is held constant or caused to vary in a prescribed way. Control systems are intimately related to the concept of automation but have an ancient history. Roman engineers maintained water levels in… …
12valve — /vælv / (say valv) noun 1. any device for closing or modifying the passage through a pipe, outlet, inlet, or the like, in order to control the flow of liquids, gases, etc. 2. a hinged lid or other movable part in such a device, which closes or… …
13valve */ — 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… …
14PCV valve — The Positive Crankcase Ventilation valve, or PCV valve, is a one way valve that ensures continual evacuation of gases from inside a gasoline internal combustion engine s crankcase.ExplanationAs an engine runs, gases and combustion pressure are… …
15suction relief valve — A control valve that provides constant negative pressure by opening the system to the outside air when the vacuum rises above the preset value. Some gyro instruments (air driven direction indicator, or DI, artificial horizons, etc.) are operated… …
16Check valve — Tilting disc inconel check valve …
17Aircraft flight control systems — consist of flight control surfaces, the respective cockpit controls, connecting linkages, and the necessary operating mechanisms to control an aircraft s direction in flight. Aircraft engine controls are also considered as flight controls as they …
18Butterfly valve — A butterfly valve is a type of flow control device, typically used to regulate a fluid flowing through a section of pipe. The valve is similar in operation to a ball valve. A flat circular plate is positioned in the center of the pipe. The plate… …
19Reversing valve — A reversing valve removed from an HVAC heat pump for replacement. A reversing valve a type of valve and is a component in a heat pump, that changes the direction of refrigerant flow.[1][2] …
20Ship gun fire-control system — Mk 37 Director c1944 with Mk 12 (rectangular antenna) and Mk 22 orange peel Ship gun fire control systems (GFCS) enable remote and automatic targeting of guns against ships, aircraft, and shore targets, with or without the aid of radar or optical …
