FLUID POWER ENGINEERING
Subject Title : Fluid Power Engineering
Subject Code : M-
Hours Per Week : 04
Hours Per Semester : 64
TOPIC ANALYSIS
| SL.No | Major Topics | Hours Allotted | Weightage of Marks |
| SECTION - I | |||
| 1 | Introduction to Fluid Power Engineering | 02 | 05 |
| 2 | Fluid Power Fundamentals | 03 | 05 |
| 3 | Pumps | 04 | 10 |
| 4 | Valves | 04 | 10 |
| 5 | Actuators & accessories | 06 | 15 |
| SECTION - II | |||
| 6 | Pipes, Hoses and Fittings | 04 | 10 |
| 7 | Hydraulic Symbols and Design of circuits | 08 | 25 |
| 8 | Fundamentals of Pneumatics | 02 | 03 |
| 9 | Pneumatic Components | 04 | 10 |
| 10 | Pneumatic Symbols as per ISO1219 | 01 | 02 |
| SECTION - III | |||
| 11 | Design of Pneumatic circuits | 07 | 25 |
| 12 | Combination circuits | 03 | 10 |
| 13 | Fluidics/Fluid Logics | 04 | 10 |
| 14 | Maintenance | 02 | 05 |
| 15 | Industry Institution Interaction | 06 | - |
| 16 | Tests | 04 | - |
| | Total | 64 | 145 |
OBJECTIVES
On the completion of the course the students should be able to:
- Know what is fluid power
- Know the importance of fluid power in automation
- Understand the concepts behind hydraulic and pneumatic systems
- Learn transmission of fluid power
- Recognize and use components of hydraulic and pneumatic systems
- Explain the construction and working of fluid system components
- Build a circuit for hydraulic or pneumatic system
- Apply the designed circuit to a real world scenario
- Know the importance of fluid sensors and logic behind these circuits
- Understand the schedule maintenance for fluid system.
SPECIFIC INSTRUCTIONAL OBJECTIVES
1. Introduction to Fluid Power Engineering
1.1 Define Fluid Power Engineering
1.2 Brief about Historical perspective and general aspects
1.3 Explain Role of Fluid Power Engineering in today’s Industrial Automation
1.4 Indicate the Elements of Automation and types
1.5 Clarify the Aims of automation
2. Fluid Power Fundamentals
2.1 Introduction
2.2 Discus Fluid Power
2.3 Explain Basic Methods of Transmission of power
2.4 Briefly describe Fluid Systems
3. Pumps
3.1 Define Pumps
3.2 Classify Pumps
3.2.1 Hydrodynamic
- Centrifugal pumps, External Gear Pump, Lobe, Vane pumps
- Axial pumps-
piston-axial
piston-inline
piston-radial
4. Valves
4.1 Sketch and explain pressure control valves-relief valve, balance valve
4.2 explain pressure reducing valves
4.3 Discuss the importance of directional control valve
- what is control?
- explain the construction of poppet valve, spool valve, construction of 2,3 and 4 way direction control valve.
4.4 Flow control valve
- Understand the significance of non-return/check valves
- know the construction and working of Non return valve
- sketch and explain pilot operated sequence valve
5. Actuators
5.1 Define actuators
5.2 Understand the linear actuators
- Cylinders
- Construction and working of cylinders
- Construction and working of single acting and double acting
5.2 Know the importance of Rotary actuators
- Hydraulic Motor
- Unidirectional
- Bidirectional
- explain the construction of
- Gear, vane, piston actuators
6. Accessory Components
6.1 What are reservoirs?
6.2 Know the construction, working and uses of different accumulators
Like – weight loaded, spring loaded, gas loaded.
6.3 What is role played by Intensifier?
- explain the construction, working and uses of an intensifier.
6.4 conductors/pipes; pipe fittings
7. Design of Hydraulic circuits
- List of components
- understand and use symbols
- Introduction to design of hydraulic circuits
- Create basic hydraulic circuits
- Meter in circuits
- Meter out circuits
- bleed off circuits
- Accumulator circuits
- sequencing circuits
- Regenerative circuits
-pressure reducing circuits
E.g.: Hydraulic circuit for a Robot ARM
8. Fundamentals of Pneumatics
8.1 Define Pneumatics
8.2 Applications of Pneumatics
8.3 Gas Laws, Pascal Law
9. Pneumatic Components
9.1 Air compressors
9.2 Types of air compressors-
- reciprocating piston compressor
- Diaphragm compressor
- Vane compressor
9.3 reservoirs/air receiver
9.4 FRL – unit- construction and working
9.5 valves
- direction control valves 2/2, 3/2, 4/2 , 5/2 and 5/3 valve controls
- manual
- mechanical
- pneumatic
- electro pneumatic
- combination of any 2
9.6 actuators
9.6.1 cylinders- single acting and double acting
9.6.2 air motors- piston motor, gear motor, sliding vane motor
10 Pneumatic Symbols
10.1 Port markings
10.2 ports and positions
10.3 symbols as per ISO1219/ ANSI
11 Pneumatic circuits
Difference between Hydraulic circuits and pneumatic circuits
11.1 Basic pneumatic circuit
11.2 control of double acting cylinder using 4/2 DCV
11.3 pilot controlled double acting cylinder 4/2 DCV
11.4 speed control circuit for a double acting cylinder
11.5 semi-automatic material handling circuit
11.6 Time delay circuits e.g: Sorting of objects, punching operations, etc
12 Combination circuits
12.1 advantages of combination
12.2 hydropneumatic / pneumohydraulic circuits
12.3 air over oil circuit
12.4 air over oil intensifier circuit
12.5 mechanical hydraulic servo system
12.6 electro hydraulic system
12.7 comparison of hydraulic, pneumatic and hydropneumatic systems
13 Fluidics/ Fluid Logics
13.1 Introduction
13.2 Advantage, disadvantage and application of fluidics
13.3 fluidic elements
13.4 classification of fluidic devices
13.5 fluid logic devices
- Bi-stable flip flop
- AND gate
- OR-NOR gate
13.6 Fluid Sensors
-Interruptible sensors
-Jet Sensors
-Reflex Sensors
-Back pressure sensors
14 Maintenance
14.1 maintenance of hydraulic system
- common faults in hydraulic system
- simple visual checks of oil
- causes of contamination
- preventive measures
14.2 common problems in pneumatic systems
-maintenance schedule of pneumatic systems
COURSE CONTENTS
1. Introduction to Fluid Power Engineering
1.1 Fluid Power Engineering
1.2 general aspects
1.3 Role of Fluid Power Engineering in today’s Industrial Automation
1.4 Elements of Automation and types
2. Fluid Power Fundamentals
2.1 Introduction
2.2 Methods of Transmission of power
2.4 Fluid Systems
3. Pumps
3.1 Pumps
3.2 Classification of Pumps
3.2.1 Hydrodynamic
- Centrifugal pumps, External Gear Pump, Lobe, Vane pumps
- Axial pumps-piston-axial ,piston-inline, piston-radial
4. Valves
4.1 pressure control valves-relief valve, balance valve
4.2 pressure reducing valves
4.3 directional control valve
-poppet valve, spool valve, construction of 2,3 and 4 way dcv.
4.4 Flow control valve
- non-return/check valves
-pilot operated sequence valve
5. Actuators
5.1 actuators
5.2 Linear actuators
- Cylinders
- single acting and double acting
5.3 Rotary actuators
- Hydraulic Motor
- Unidirectional
- Bidirectional
-Gear, vane, piston actuators
6. Accessory Components
6.1 Reservoirs
6.2 Accumulators
– weight loaded, spring loaded, gas loaded.
6.3 Intensifier
6.4 conductors/pipes; pipe fittings
7. Design of Hydraulic circuits
- components
- symbols
- Hydraulic circuits
- Basic hydraulic circuits
- Meter in circuits
- Meter out circuits
- Bleed off circuits
- Accumulator circuits
- sequencing circuits
- Regenerative circuits
-pressure reducing circuits
E.g.: Hydraulic circuit for a Robot ARM
8. Fundamentals of Pneumatics
8.1 Pneumatics
8.2 Applications of Pneumatics
8.3 Gas Laws, Pascal Law
9. Pneumatic Components
9.1 Air compressors
9.2 Types of air compressors
- reciprocating piston compressor
- Diaphragm compressor
- Vane compressor
9.3 reservoirs/air receiver
9.4 FRL – unit
9.5 valves
- direction control valves 2/2, 3/2, 4/2 , 5/2 and 5/3
valve controls
- manual
- mechanical
- pneumatic
- electro pneumatic
- combination of any 2
9.6 actuators
9.6.1 cylinders- single acting and double acting
9.6.2 air motors- piston motor, gear motor, sliding vane motor
10 Pneumatic Symbols
10.1 Port markings
10.2 ports and positions
10.3 symbols as per ISO1219/ ANSI
11 Pneumatic circuits
Hydraulic circuits and pneumatic circuits
11.1 Basic pneumatic circuit
11.2 control of double acting cylinder using 4/2 DCV
11.3 pilot controlled double acting cylinder 4/2 DCV
11.4 speed control circuit for a double acting cylinder
11.5 semi-automatic material handling circuit
11.6 time delay circuit
12 combination circuits
12.1 advantages of combination
12.2 hydropneumatic / pneumohydraulic circuits
12.3 air over oil circuit
12.4 air over oil intensifier circuit
12.5 mechanical hydraulic servo system
12.6 electro hydraulic system
12.7 comparison of hydraulic, pneumatic and hydropneumatic systems
13 Fluidics/ Fluid Logics
13.1 Introduction
13.2 Advantage, disadvantage and application of fluidics
13.3 fluidic elements
13.4 classification of fluidic devices
13.5 fluid logic devices and types
13.6 Fluid Sensors and types of sensors
14 Maintenance
14.1 maintenance of hydraulic system
- common faults in hydraulic system
- simple visual checks of oil
- causes of contamination
- preventive measures
14.2 common problems in pneumatic systems
-maintenance schedule of pneumatic systems
Text Books: 1.Fluid Power Engineering By R K Hegde & Neeranjan Murthy, Sapna Publishers.
REFERENCES
1. Hydraulic and Pneumatic Controls-
Author: K.S.Sundaram,
Publisher: S. Chand
2. Robotics and Industrial Automation
Author: R.K. Rajput
Publisher: S.Chand
3. Oil Hydraulic and System
Author: S.R.Majumdar
Publisher: McGraw Hill
4. Pneumatic Systems
Author: S.R.Majumdar
Publisher: McGraw Hill
5. Pneumatic Controls
Author: Joji P
Publisher: Wiley India Ltd
6. Pneumatic Systems
Author: Sirohi
Publisher:
7. Fluid Power with Applications
Author: Anthony Esposito
Publisher: McGraw Hill
8. Pneumatic Controls
Author: Joji P
Publisher: Wiley India Pvt Ltd.
9. Hydraulics & Pneumatics – Andrew Parr , Jaico Publishing House.
10.Centrifugal Pumps – Val S Lobanoff & Robert R Ross, Jaico Publishing House
