Hydraulic Power basics Pascal’s Law Pressure exerted at any point on a confined liquid is transmitted undiminished in all directions. Hydraulic Terms Hydraulic Tool or equipment powered by the movement of fluid under pressure. Examples are brakes, jacks & tractor lifts. Pneumatic
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Pressure exerted at any point on
a confined liquid is transmitted
undiminished in all directions.
Tool or equipment powered by the movement of fluid under pressure. Examples are brakes, jacks & tractor lifts.
Tool or equipment powered or supported by the movement of compressed air.
Pounds per Square Inch
determines amount of force
Gallons per Minute
determines speed of action
Pressure applied to piston “A” is transferred equally to a piston of the same size “B” because PSI is the same throughout the system.
If the surface area of piston “B” is 10 times the surface area of piston “A”, then the force applied to piston “A” is multiplied 10 times as the force exerted on piston “B”. PSI is equal throughout the system.
Force input on a hydraulic system or component results in transfer of power to output of force by the system or component.
Functions in a hydraulic system by pressurizing and moving fluid from one part of the system to another.
Receives power from moving fluid to transfer hydraulic power to mechanical rotating force.
Piece of equipment that transfers hydraulic power into mechanical movement in one or two directions only.
Refers to a hydraulic cylinder that works in one direction only.
Refers to a hydraulic cylinder that pushes and pulls.
Internal component of a hydraulic cylinder that is moved in a linear motion by the action of fluid introduced into the cylinder.
The polished round bar that is extended from and retracted into a hydraulic cylinder.
The length of movement that a hydraulic cylinder is capable of producing.
Found in hydraulic components; function is to keep fluid from leaking between moving and non-moving parts
Restricts flow of fluid to only one direction; allows pressure to build up or be maintained.
Controls direction of flow of fluid in a hydraulic system to cause the different parts of the system to function.
The first hydraulic power lift for a tractor was introduced in 1935 by John Deere. This unit only had two positions, up and down, but the hydraulic action cushioned the lowering of the implement.
Rotating shaft on a modern tractor powered by an internal hydraulic cylinder; used to transfer power to the implement lift.