4HydraulicTool or equipment powered by the movement of fluid under pressure. Examples are brakes, jacks & tractor lifts.
5PneumaticTool or equipment powered or supported by the movement of compressed air.
6PSI GPM Pounds per Square Inch determines amount of force Gallons per Minutedetermines speed of action
7Basic principlePressure applied to piston “A” is transferred equally to a piston of the same size “B” because PSI is the same throughout the system.
8hydraulic advantageIf 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.
9Input / OutputForce input on a hydraulic system or component results in transfer of power to output of force by the system or component.
10PumpFunctions in a hydraulic system by pressurizing and moving fluid from one part of the system to another.
11Hydraulic pumps are usually one of four types: PISTON GEAR VANE INTERNAL ROTOR
12Piston Pumps Work well at PSI’s of 2000 or more Single piston pump used in bottle jacksRequire several pistons working together to generate enough volume for tractor applicationsNecessarily involve many moving parts
13Gear Pumps Work well at 1500 PSI and below Work with a minimum of moving partsLess expensive to manufacture than piston type pumps