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ME1305 APPLIED HYDRAULICS AND PNEUMATICS
1. FLUID POWER SYSTEMS AND FUNDAMENTALS
Introduction: Introduction to fluid power, Advantages of fluid power, Application of fluid power system. Types of fluid power systems, Properties of hydraulic fluids – General types of fluids – Fluid power symbols.
Basics of hydraulics – Applications of Pascal’s Law-Laminar and turbulent flow – Reynolds’s number-Darcy’s equation – Losses in pipe, valves and fittings.
2. HYDRAULIC SYSTEM AND COMPONENTS
Sources of Hydraulic Power: Pumping theory – Pump classification – Gear pump, Vane Pump, piston pump, construction and working of pumps – pump performance – Variable displacement pumps.
Fluid Power 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.
3. DESIGN OF HYDRAULIC CIRCUITS
Construction of Control Components:Directional control valve – 3/2 way valve – 4/2, 4/3 way valve – Shuttle valve – check valve – pressure control valve – pressure reducing valve sequence valve, Flow control valve – Fixed and adjustable, electrical control solenoid valves, Relays, ladder diagram.
Accumulators and Intensifiers:Types of accumulators – Accumulators circuits, sizing of accumulators, intensifier – Applications of Intensifier – Intensifier circuit.
4. PNEUMATIC SYSTEMS & COMPONENTS
Pneumatic Components: Properties of air – Compressors – Filter, Regulator, and Lubricator Unit – Air control valves, Quick exhaust valves, pneumatic actuators.
Fluid Power Circuit Design, Speed control circuits, synchronizing circuit, Pneumo hydraulic circuit, Sequential circuit design for simple applications using cascade method.
5. DESIGN OF PNEUMATIC CIRCUITS
Servo systems – Hydro Mechanical servo systems, Electro hydraulic servo systems and proportional valves.
Fludics – Introduction to fluidic devices, simple circuits, Introduction to Electro Hydraulic Pneumatic logic circuits, ladder diagrams, PLC applications in fluid power control. Fluid power circuits; failure and trouble shooting.
TEXT BOOKS
1. Anthony Esposito, “Fluid Power with Applications”, Pearson Education Inc., 2003
2. Majumdar S.R., “Pneumatic systems – Principles and maintenance”, Tata McGraw-Hill, 1995
REFERENCES
1. Anthony Lal, “Oil hydraulics in the service of industry”, Allied publishers, 1982.
2. Harry L. Stevart D.B, “Practical guide to fluid power, “Taraoeala sons and Port Ltd. Broadey, 1976.
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