FLUID POWER SYSTEM FUNDAMENTALS
Theory:
Introduction Fluid Power - hydraulics and pneumatics - advantages and limitations -Properties of
fluids - Fluids for hydraulic systems - Applications of fluid power -ISO symbol- Basics of
Hydraulics -Applications of Pascal's Law - Classification of Pumps and Positive displacement type
pumps - Pumping Theory.
Practical:
1. Design and simulation of basic hydraulic circuit.
2. Design and simulation of pneumatic circuit.
HYDRAULIC ACTUATORS AND VALVES
Theory:
Hydraulic actuators: Linear hydraulic actuators -Types of hydraulic cylinders -Single acting,
Double acting, special cylinders like tandem, Rodless, Telescopic - Cushioning mechanism -
Construction of double acting cylinder - Rotary actuators -Fluid motors, Gear, Vane and Piston
Motors-Hydraulic clamping actuators, grippers.
Construction of Control Components: Direction control valve -3/2 - way valve -4/2 - way valve -
Shuttle valve -check valve -pressure control valve -pressure reducing valve, sequence valve, Flow
control valve -Fixed and adjustable FCV.
Practical:
1.Design and testing of fluid power circuits to control
(i) Velocity
(ii) direction and
(iii) force of single and double acting actuators
PNEUMATIC SYSTEM COMPONENTS AND SERVO SYSTEMS
Theory:
Pneumatic Components: Properties of air -Compressors -Filter, Regulator, and Lubricator Unit -Air
control valves, Quick exhaust valves, and pneumatic actuators, Selection of tubes and connectors.
Servo systems - Hydro Mechanical servo systems, Electro hydraulic servo systems - Proportional
control valves and servo valves - Introduction to Fluidics.
Practical:
1. Design of circuits with logic sequences in electro pneumatic trainer kits.
Theory:
Fluid Power Circuit Design -Circuits with sequence valve -Speed control circuits- Regenerative
cylinder Circuits-Pump unloading circuit -Counter balance valve circuit – Pneumo hydro circuit -
Types of accumulators -Accumulators circuits -sizing of accumulators -working of intensifier -
Applications of Intensifier.
Practical:
1. Design and testing of speed control circuits
2. Meter-in and Meter-out circuits
INDUSTRIAL CIRCUITS AND MAINTENANCE OF FLUID POWER SYSTEM
Theory:
Sequential circuit design for simple applications using cascade method, step counter method -
Introduction to PLC-ladder diagrams, PLC applications in fluid power control - Installation,
Maintenance and troubleshooting of Fluid Power systems.
Practical:
1.Design and testing of electro hydraulic circuit
Reference Book:
1. S. R. Majumdar, “Oil Hydraulics”, Tata McGraw Hill Publishing Company Pvt Ltd. New Delhi, 2004
2. James L. Johnson, “Introduction to Fluid Power”, Delmar Thomson Learning, 2003
3. S. R. Majumdar, “Pneumatic systems – Principles and maintenance”, Tata McGraw Hill Publishing
Company Pvt Ltd. New Delhi, 2008
4. Andrew Parr, “Hydraulics and Pneumatics”, Jaico Publishing House, 2006
5. Jagadeesha T, “Fluid Power Control”, Wiley India Limited, 2013
Text Book:
1. R.Srinivasan, “Hydraulic and Pneumatic Controls”, Vijay Nicole Publication, 2004
2. Anthony Esposito, “Fluid Power with Applications”, Pearson Education New Delhi, 2011
