Presentation on theme: "Hydraulic and pneumatic systems use fluid power."— Presentation transcript:
1Hydraulic and pneumatic systems use fluid power. Technology Interactions
2Fluid PowerFluid power is the use of liquids or gases under pressure to move objects or perform other tasks.Any substance that flows is a fluid. Liquids and gases are both fluids.Fluids only have power when they are flowing.Fluids can be put under pressure and moved through pipes or hoses to where they are needed.
3Matter All objects are made of matter. The three states of matter are solidliquidgasThe state of matter is determined by how tightly its molecules are held together.
4Solids The molecules in solids are very strongly linked are hard to compressmaintain both their volume and shape
5Liquids The molecules in liquids are more loosely linked are hard to compressmaintain their volume but not their shape
6Gases The molecules in gases are very loosely linked are easy to compressdo not maintain either their shape or volume
7Boyle’s LawThere is a direct relationship between the temperature and pressure of any gas.P (pressure) x V (volume) = a constant numberIf pressure increases, the volume of the gas will decrease. If the volume increases, the pressure will decrease.This is true only if the temperature of the gas stays the same.
8Pascal’s PrincipleIf a force is applied to a confined liquid, the resulting pressure is the same throughout the fluid and on the walls of the fluid’s container.Force, in the form of pressure, is transferred within fluid power systems.
9Hydraulic Systems Hydraulic systems use oil or another liquid. Liquids are very difficult to compress, so they can be used to transfer very powerful forces from one place to another.Hydraulic systems are ideal when high power and accuracy are required.
10Parts of a Hydraulic System A simple hydraulic system consists of:FluidPumpReservoirRelief valveControl valveSingle-acting cylinderTransmission lines
11Uses of Hydraulic Systems ManufacturingTransportationConstructionAgricultureEntertainment industry
12Pneumatic Systems Pneumatic systems use a gas, usually air. Pressure is built up by compressing the gas.Pneumatic systems can usually be lighter weight than hydraulic systems.The air they use is always available and since it is not a hazardous material, there is nothing to clean up.
13Parts of a Pneumatic System A simple pneumatic system consists of:CompressorReceiverCheck valveControl valveActuator
14Uses of Pneumatic Systems ConstructionManufacturingPackagingHealth care