OIL HYDRAULIC AND PNEUMATIC
GUJARAT TECHNOLOGICAL UNIVERSITY
BRANCH NAME:- MECHANICAL ENGINEERING
SUBJECT CODE:-2171912
SUBJECT NAME:- OIL HYDRAULICS AND PNEUMATICS
B.E 7th SEMESTER
- Introduction: – Introduction, Global fluid power Scenario, Basic system of Hydraulics-Major advantages and disadvantages, Principles of Hydraulic Fluid power, Hydraulic Symbols, Electrical Elements used in hydraulic circuits.
- System Components, Hydraulic Oils, Fluid Properties and Filter:- Hydraulic & Pneumatic Symbols as per ISO/ANSI, Types, Properties, physical characteristics & function of hydraulic Oils, Classification- Mineral based, Fire resistant & Biodegradable Oils, Filters, Contaminations, location of filter.
- Hydraulic Pumps, Motors and Actuators:- Construction, working principle and operation of rotary & Reciprocating pumps like Gear, Vane, Generated- Rotor, Screw, Axial Piston, Radial Piston, Pump characteristics, Linear and Rotary Actuators, Hydrostatic Transmission Systems. Selection of components for applications.
- Hydraulic Valves and Hydraulic System Accessories:- Direction control valves, Pressure control valves, Flow control valves, Non-return valves, Reservoirs, Accumulators, Heating & cooling devices, Hoses, Selection of valves for circuits.
- Design of hydraulic circuit:- Basic hydraulic circuits, Industrial hydraulic circuits, Power losses in flow control circuits.
- Introduction to Pneumatic Systems:- Basic Requirements for Pneumatic System, Applications, Pneumatic fundamentals, Construction, working principle and operation of pneumatic power transmission system components like Power Source, FRL unit, Actuators and control valves like DCV, FCV, PCV, time delay, quick exhaust, twin pressure, shuttle.
- Pneumatic circuits:- Basic pneumatic circuits, Development of single Actuator Circuits, Development of multiple Actuator Circuit, Cascade method for sequencing.
- Introduction to Automation in hydraulic and Pneumatic Systems.
Introduction to oil Hydraulics and Pneumatics
1
Fluid Power System
2
Basic Hydraulic System
3
Principles of Hydraulic Systems
4
Basic Electrical Devices
System Components Hydraulic Oils Fluid Properties and Filter
1
Hydraulic and Pneumatic Symbols as per ISO/ANSI
2
Properties (Physical Characteristics) of Hydraulic Oil
3
Functions of Hydraulic Oil
4
Types of Hydraulic Fluids
5
Biodegradable Hydraulic Fluid
6
Fire Resistant Hydraulic Fluid
7
Factors Influencing the Selection of a Fluid
8
Additives in Hydraulic Fluids
9
Contamination of Hydraulic Fluids
10
Filter in Fluid Power System
Hydraulic Pumps Motors and Actuators
1
Pumps
2
Actuators
3
Rotary Actuators
4
Selection of components for hydraulic systems
Hydraulic Valves and System Accessories
1
Control Valves
2
Classification of Control Valves
3
Factors to be Considered While Selecting Control Valves
4
Pressure Control Valves
5
Direction Control Valves
6
Flow Control Valves
7
Special Type Valves
8
Factors to be Considered While Selecting Control valves
9
Hydraulic Reservoir
10
Hydraulic Accumulator
11
Intensifiers or Pressure Boosters
12
Heat Exchangers (Heating and Cooling Devices)
13
Introduction to Pipes
14
Seals in Fluid Power System
Design of Hydraulic Circuits
1
Operating SAC using 3/2 DCv
2
Operating Uni-directional Motor using 3/2 DCV
3
Operative DAC using 4/2 DCV
4
Operating Two SAC using One 4/2 DCV
5
Operating DAC using 4/3 DCV
6
Operating Bi-directional Motor using 4/3 DCV
7
Two Hand Operation Circuit
8
Operating DAC using 5/2 DCV
9
Automatic Continuous Operation of DAC
10
Speed Control Circuits
11
Sequencing Circuits using Sequence Valves
12
Sequencing Circuits using Limit Valves
13
Sequencing Circuits using Limit Switches
14
Synchronizing Circuits
15
Hydraulic Shaper Circuit
16
Hydraulic Milling Machine or Hydraulic Surface Grinding Machine
17
Regenerative Circuit
18
Fast Approach and Slow Working Hydraulic Circuit
19
Dual Pump Hydraulic Circuit
20
Hydraulic Press Circuit using Unloading Valve
21
Hydraulic Circuit using Counter Balance Valve
22
Deceleration Circuit or Cushioning Circuit
23
Application of Shuttle Valve ( OR Logic Valve)
24
Application of Twin Pressure Valve (AND Logic Valve)
25
Application of Pilot to Open Check Valve
26
Hydraulic Time Delay Valve Circuit
27
Motor Braking Circuit
28
Riveting Machine Circuit
29
Accumulator Circuit
30
Intensifier Circuit to Operate Punching Press
31
Design of Hydraulic Systems
Introduction to Pneumatic Systems
1
Pneumatic System
2
Air Compressors
3
Reciprocating Compressor
4
Rotary Compressors
5
Methods of Energy Saving in Air Compressor
6
Actuators
7
Rotary Actuators
8
Purification of Compressed Air
9
Air Receiver
10
FRL Unit
11
Condensation of Water
12
Air Dryers
13
Mufflers
14
Control Valves
15
Pressure Control Valves
16
Direction Control Valves
17
Flow Control Valves
18
Special Type Valves
Pneumatic Circuits
1
Operating SAC using 3/2 DCV
2
Operating Uni-directional Motor by 3/2 DCV
3
Operating DAC using 4/2 DCV
4
Operating Two SAC using One 4/2 DCV
5
Operating Only One SAC using a 4/2 DCV
6
Operating DAC using 4/3 DCV
7
Operating Bi-directional Motor by 4/3 DCV
8
Dual Control (Two Hand Operation) Circuit
9
Operating DAC using 5/2 DCV
10
Automatic Continuous Operation of DAC
11
Speed Control Circuits
12
Sequencing Circuits using Sequence Valves
13
Sequencing Circuit using Limit Valves (Cascade Method)
14
Sequencing Circuits using Limit Switches
15
Impulse Operated Pneumatic Circuit
16
Pneumatic Circuit using Quick Exhaust Valve
17
Time Delay Valve Circuit
18
Air Brake System for Automobile
19
Application of Shuttle Valve (OR Logic Valve)
Introduction to Automation in Hydraulics and Pneumatics
1
Introduction to Automation
2
Automation in Fluid Power Systems
3
Hydraulic and Pneumatic Servo Systems
4
Sensors Switches and Transducers
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