Hydraulics uses pressurized fluids to transmit and control force in a system. It operates based on Pascal's law where pressure is transmitted equally in all directions throughout an enclosed fluid. A basic hydraulic system includes a pump, reservoir, filter, control valve, actuator and return line. Hydraulics is commonly used in heavy equipment, manufacturing and aircraft due to its ability to produce high pressures and precisely control movements. Common components include gear pumps, cylinders, directional control valves and accumulators. Hydraulic systems are visualized through circuit diagrams and simulations.

1. HYDRAULICS

2. What is Fluid Power ?
 Fluid Power is the use of a confined pressurized
fluid to transmit force or motion.
Fluid Power
Hydraulic Pneumatic

3. Basics Principle of Hydraulics :
 Hydraulics is mechanical function that operates through
the flow and force of liquid pressure.
 Pascal’s Law “The intensity of pressure at any point in a
confined system would be same in all direction.”

4. What is a hydraulic System ?
A hydraulic drive system is a drive or transmission system that uses
pressurized hydraulic fluid to power hydraulic machinery.

5. Why prefer Hydraulic System?
Hydraulics
Higher Pressure( Up to 700 Bar)
Precise Control
Higher Safety Factor
Pneumatics
Low Pressure(2-10 Bar)
Lower precision
Lower Safety Factor

6. Application Of Hydraulic system
Pressure Die Casting
Construction Equipment
Agricultural Equipment
Aircraft

7. Backhoe Cylinder Design Calculation
Let 1500Kg of load is to be lift on Backhoe
We know
P= F/A
Let Maximum Pressure in system Would be 250 Bar
200= 1500/A
A= 7.5 cm2
= 7.5
D = 6 cm
d = 3 cm ( because rod diameter is half of that of external diameter)
Now Volume Of Cylinder Can be find out:
V= l Let l = 186cm
=5256 cm3

8. Most basic hydraulic system
Fluid Tank
Filter
Hydraulic
Pump
Pressure
Regulator
Control
Valve
Piston
Cylinder
Return
Line to
tank

9. Pump:
 Pump is a device which transfer fluid substance from one
place to another place.
 Pumps are general classified into two types:-
Pump
Non Positive DisplacementPositive Displacement

10. Types of Pump In Hydraulic System:
Gear Pump Lobe Pump
Vane Pump
Axial Piston Pump

11. Types Of Control Valves:
•Pressure Control valve
•Directional Control Valve
•Flow Control Valve
•Shuttle Valve
•Check valve

12. There are Two main types on the basis of Actuation:
Actuators
• Linear Actuator
• Rotary Actuator
The hydraulic reservoir is a container for holding the fluid
required to supply the system, including a reserve to
cover any losses from minor leakage and evaporation.
Reservoir
Some other hydraulic elements are;
Aggregate
Elements
• Accumulator
• Hydraulic fluid
• Filters
• Pipes and hoses
• Seals, fittings and connections

13. How Basic Hydraulic Circuit Visualise?

14. Basic Hydraulic Circuit Simulation
Festo Fluid Sim

15. Basic Hydraulic Circuit Simulation
Festo Fluid Sim

16. Basic Hydraulic Circuit Simulation
Festo Fluid Sim

17. Application Of Hydraulics
Hydrostatic Transmission

18. Application Of Hydraulics
Hydrostatic Transmission

19. Thanks To All