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Unit 1 Fluid Power Priniciples and Hydraulic Pumps

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UNIT 1 FLUID POWER PRINICIPLES AND HYDRAULIC PUMPS

Introduction to Fluid power – Advantages and Applications – Fluid power systems – Types
of fluids - Properties of fluids and selection – Basics of Hydraulics – Pascal’s Law –
Principles of flow - Friction loss – Work, Power and Torque Problems, Sources of Hydraulic
power : Pumping Theory – Pump Classification – Construction, Working, Design,
Advantages, Disadvantages, Performance, Selection criteria of Linear and Rotary – Fixed
and Variable displacement pumps – Problems.

UNIT 2 HYDRAULIC ACTUATORS AND CONTROL COMPONENTS

Hydraulic Actuators: Cylinders – Types and construction, Application, Hydraulic cushioning



Hydraulic motors - Control Components : Direction Control, Flow control and pressure
control
valves – Types, Construction and Operation – Servo and Proportional valves – Applications

Accessories : Reservoirs, Pressure Switches – Applications – Fluid Power ANSI Symbols –
Problems.

UNIT 3 HYDRAULIC CIRCUITS AND SYSTEMS

Accumulators, Intensifiers, Industrial hydraulic circuits – Regenerative, Pump Unloading,


DoublePump, Pressure Intensifier, Air-over oil, Sequence, Reciprocation, Synchronization,
Fail-Safe, Speed Control, Hydrostatic transmission, Electro hydraulic circuits, Mechanical
hydraulic servo systems.

UNIT 4 PNEUMATIC AND ELECTRO PNEUMATIC SYSTEMS

Properties of air – Perfect Gas Laws – Compressor – Filters, Regulator, Lubricator, Muffler,
Air control Valves, Quick Exhaust Valves, Pneumatic actuators, Design of Pneumatic circuit

Cascade method – Electro Pneumatic System – Elements – Ladder diagram – Problems,
Introduction to fluidics and pneumatic logic circuits.

UNIT 5 TROUBLE SHOOTING AND APPLICATIONS

Installation, Selection, Maintenance, Trouble Shooting and Remedies in Hydraulic and


Pneumatic systems, Design of hydraulic circuits for Drilling, Planning, Shaping, Surface
grinding, Press and Forklift applications. Design of Pneumatic circuits for Pick and Place
applications and tool handling in CNC Machine tools – Low cost Automation – Hydraulic
and Pneumatic power packs.

OUTCOMES

Upon the completion of this course the students will be able to


CO1 Explain the Fluid power and operation of different types of pumps.
CO2 Summarize the features and functions of Hydraulic motors, actuators and Flow control
valves
CO3 Explain the different types of Hydraulic circuits and systems
CO4 Explain the working of different pneumatic circuits and systems
CO5 Summarize the various trouble shooting methods and applications of hydraulic and
pneumatic systems.

TEXT BOOKS

1. Anthony Esposito, “Fluid Power with Applications”, Pearson Education 2005.


2. Majumdar S.R., “Oil Hydraulics Systems- Principles and Maintenance”, Tata
McGrawHill, 2001.

REFERENCES

1. Anthony Lal, “Oil hydraulics in the service of industry”, Allied publishers, 1982.
2. Dudelyt, A. Pease and John T. Pippenger, “Basic Fluid Power”, Prentice Hall, 1987.
3. Majumdar S.R., “Pneumatic systems – Principles and maintenance”, Tata McGraw
Hill, 1995
4. Michael J, Prinches and Ashby J. G, “Power Hydraulics”, Prentice Hall, 1989.
5. Shanmugasundaram.K, “Hydraulic and Pneumatic controls”, Chand & Co, 2006.

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