CONTENTS

1. Basics of Oil Hydraulic Systems

1. Introduction

2. General Layout of Hydraulic System

2.1 Properties of Hydraulic Fluid

2.2 Hydraulic Pumps

3. Classification of Pumps

3.1 Classification Based on Displacement

3.2 Classification Based on Delivery

3.3 Classification Based on Motion

3.4 Gear Pumps

3.5 Gerotor Pumps

3.6 Lobe Pumps

3.7 Screw Pumps

3.8 Vane Pumps

3.9 Piston Pumps

4. Criterions for Selection of Pump

2. Hydraulic Valves, Actuators and Accessories

1. Introduction

2. Control Valves

2.1 Types of Valves

3. Other Direction Control Valve

3.1 Check Valve

3.2 Pilot-Operated Check Valve

3.3 Flow Control Valve

4. Actuator

4.1 Classification of Actuators

4.2 Hydraulic Actuators

4.3 Rotary Actuator (Hydraulic Motor)

5. Accessories used in Fluid Power Systems

5.1 Pipes

5.2 Fittings

5.3 Hoses

5.4 Oil Filters

5.5 Seals

6. Accumulator

3. Oil Hydraulic Circuits

1. Introduction

2. Hydraulic Circuit

3. Basic Components of a Hydraulic System

4. Types of Oil Hydraulic Circuits

4.1 Basic Circuits

4.2 Flow Speed Control Circuits

4.3 Sequencing Circuit

4.4 Pump-Unloading Circuit

4.5 Double-Pump Hydraulic System/Dual Pump Unloading Circuit

4.6 Regeneration Circuits

4.7 Counter Balance Circuit

4.8 Two Cylinder Synchronizing Circuits

5. Hydraulic Machine Circuit

5.1 Oil Hydraulic Circuits for Milling Machine

5.2 Oil hydraulic Circuits for Shaper Machine

4. Introduction to and Components of Pneumatic Systems

1. Introduction

2. Pneumatic System

3. Compressed Air

4. Basic Components of Pneumatic Systems

4.1 Compressor

5. Positive Displacement

5.1 Reciprocating Compressor

5.2 Rotary Compressor

5.3 Dynamic Compressor

6. Selection Criterion for Compressors

7. Control Valves

7.1 Based on Construction

7.2 Based on Control Parameters

8. Methods of Actuation

8.1 Pneumatic Actuators

8.2 Rotary Actuator

8.3 Cylinder Mountings

9. Accessories

9.1 Air Filters

9.2 Pipes

9.3 Hoses

9.4 Fittings

9.5 Air Lubricator

9.6 Filter Regulator Lubricator Unit (FRL Unit) /Service Unit

5. Pneumatic Circuits

1. Introduction

2. Pneumatic Circuit Diagram

3. Speed Control Circuit

3.1 Single Acting Cylinder Control

3.2 Speed Control Circuit for Double Acting Cylinder

3.3 Speed Control Circuits for Bidirectional Air Motor

4. Sequencing Circuit

4.1 Time Dependent Sequencing Circuit