That branch of science, or of engineering, which treats of fluids in motion, especially of water, its action in rivers and canals, the works and machinery for conducting or raising it, its use as a prime mover, and the like
The study of the mechanical properties of liquids, including energy transmission and effects of the flow of water (hydraulique)
A branch of science that deals with the action or use of liquids forced through tubes and orifices under pressure to operate various mechanisms
A system of pressurized oil which provides power for raising and lowering the 3PH and which can be used to operate attached or towed implements having hydraulic pistons and cylinders "Live" hydraulics maintain oil pressure to the system even when the clutch is disengaged
(1) The study of liquids, particularly water, under all conditions of rest and motion (2) The branch of physics having to do with the mechanical properties of water and other liquids in motion and with the application of these properties in engineering ADVANCE \x 540
Hydraulics is the study and use of systems that work using hydraulic pressure. Branch of science concerned with the practical applications of fluids, primarily liquids, in motion. It is related to fluid mechanics, which in large part provides its theoretical foundation. Hydraulics deals with such matters as the flow of liquids in pipes, rivers, and channels and their confinement by dams and tanks. Some of its principles apply also to gases, usually when variations in density are relatively small. The scope of hydraulics extends to such mechanical devices as actuators and control systems. See also Bernoulli's principle, Pascal's law, pump
(Otomotiv) A system that uses fluids under pressure to transmit force or power. Hydraulic devices on a vehicle may include automatic transmission, power steering, and brake systems
of or relating to the study of hydraulics; "hydraulic engineer" moved or operated or effected by liquid (water or oil); "hydraulic erosion"; "hydraulic brakes
Actuator: An actuator is a hydraulically powered device that provides displacement of (or force into) a specimen or structure for testing The actuators can be linear or rotary
A reversal This is a general term for reversals, eddy fences, and otherplaces where there is a hydraulic gap, a powerful current differential Sometimes used in the plural to refer to the whole phenomenon of big water, whom massive waves,violent currents, and large holes are the obstacles, rather than rocks
Operated by applying pressure to liquid in a tube Some bicycles (and all automobiles) have hydraulic brakes, using liquid-filled tubing to connect the brake control lever to the caliper Hydraulic brakes have less internal friction and are immune from cable stretch, but are expensive and harder to service than cable operated brakes
Tools using fluid pressure for activation, most often for jacking or pressure in the shop The nature of fluids is that if low pressure is applied to a small area, the same pressure per unit area will be applied to a large area - so 10 pounds applied to 1 square inch by means of a lever and piston, will cause a 10 square inch piston to lift 100 pounds, the tradeoff being it will move 1/10th the distance Small bottle jacks with a pump action input on a 1/2" diameter piston will lift 8-12 tons and cost under $50 Wheeled jacks with longer arms will lift 4,000 pounds and are used under automobiles 2003-02-27
Hydraulic equipment or machinery involves or is operated by a fluid that is under pressure, such as water or oil. The boat has no fewer than five hydraulic pumps. + hydraulically hy·drau·li·cal·ly hydraulically operated pistons for raising and lowering the blade. moved or operated by the pressure of water or other liquid (hydraulicus, from , from hydraulis )
(1) Of, involving, moved by, or operated by a fluid, especially water, under pressure (2) Able to set and harden under water, as Portland cement (3) Of or relating to hydraulics
Of or pertaining to fluids in motion Hydraulic cement has a composition which permits it to set quickly under water Hydraulic jacks lift through the force transmitted to the movable part of the jack by a liquid Hydraulic control refers to the mechanical control of various parts of machines, such as coal cutters, loaders, etc , through the operation or action of hydraulic cylinders
A system that uses fluids under pressure to transmit force or power Hydraulic devices on a vehicle may include automatic transmission, power steering, and brake systems
Any operation that uses the incompressibility of liquids, usually oil or water, and their ability to offer resistance when being forced into a small cylinder, thus transmitting an increase in applied force Hydraulic brakes and clutches work on this principle