H ydraulic C omponents

1. Hydraulic Components Advanced Hydraulics Don Gilliland

2. Hydraulic Components • Reservoirs • Accumulators • Pumps • Valves • Actuators • Conductors

3. Hydraulic Components • Accumulator Functions • Energy Storage • Stabilize Pump Pulsation • Stabilize Load Shocks • StoreVolumeUnderPressure For High Volume Demands

4. Hydraulic Components • Accumulators • What You Don't Know About Hydraulic Accumulators Can KILL You! Click Below For Video • https://www.youtube.com/watch?v=-oXh3FILZdg • Gas Accumulator Pressure Test • https://www.youtube.com/watch?v=6e8ZVCKCO1U

5. Hydraulic Components • Accumulator Types • Spring Loaded • Gas Charged (Nitrogen) • Weight Loaded • Hydraulic Counter Loaded

6. Accumulator Types • Spring Loaded Types • Sealed Piston Piston may be sealed with an O-ring, quad ring, or square ring and may even be backed up with a Teflon cushion washer depending on pressure requirements of system and spring strength

7. Accumulator Types • Spring Loaded Types • Sealed Piston • Compound Spring This accumulator system is often used for variable loads or independent pressure volumes for light load extensions in sequential operation

8. Accumulator Types • Spring Loaded Types • Sealed Piston • Compound Spring • Diaphragm • The sprung side may be pneumatically boosted

9. Accumulator Types • Spring Loaded Types • Sealed Piston • Compound Spring • Diaphragm • Hydraulic Counter Loaded Notice: 2 different size pistons allowing for mechanical advantage boosting that are balanced by 2 springs working against each other (learn the math!!)

10. Accumulator Types • Spring Loaded Types • Sealed Piston • Compound Spring • Diaphragm • Hydraulic Counter Loaded • Spring with Bellows

11. Review Spring Types • Spring Loaded Types • Sealed Piston • Compound Spring • Diaphragm • Hydraulic Counter Loaded • Spring with Bellows

12. Hydraulic Components • Accumulator Types • Spring Loaded • Gas Charged (Nitrogen) • Weight Loaded • Hydraulic Counter Loaded

13. Accumulator Types • Gas Charged Types • Bladder Type • Diaphragm Type • Sealed Piston Type • Metal Bellows Type • Usually Nitrogen (Nuetral)

14. Accumulator Types • Gas Charged Types

15. Accumulator Types • Gas Charged Types

17. Accumulator Components

18. Hydraulic Components • Accumulator Types • Spring Loaded • Gas Charged (Nitrogen) • Weight Loaded • Hydraulic Counter Loaded

19. Accumulator Types • Weight Loaded Types • Sealed Piston Type

20. Accumulator Types • Weight Loaded Types • Usually Piston Type • Load Used for Stabilization in Construction Equipment • Early Hydraulics • Additional Reading • http://hsc.csu.edu.au/engineering_studies/application/lift/3377/hydraulics.htm

21. Weight Loaded Accumulator • An elevated load acting on Loader Bucket Cylinders can be used as an accumulator to be used to control ancillary systems on this machine

22. Hydraulic Components • Accumulator Types • Spring Loaded • Gas Charged (Nitrogen) • Weight Loaded • Hydraulic Counter Loaded

23. Accumulator Types • Hydraulic Counter Loaded • Sealed Piston Type

24. This Hydraulic Counter Loaded Sealed 2 size Piston Accumulator is Used to Multiply Volume or Pressure Needs for Various Transmission Actuators

25. Hydraulic Components • Accumulators • Review • Next Pumps • THE END