TAILIEUCHUNG - Ebook Fluid power with applications (4th edition): Part 2

(BQ) Part 2 book "Fluid power with applications" has contents: control components in hydraluic systems, hydraulic circuit design and analysis, pneumatics air preparation and components, circuits and application, fluid logic control systems, electrical controls for fluid power circuits, fluid power maintenance and saftey. | Learning Objectives Upon completing this chapter you should be able to 1. Describe the purpose construction and operation of various directional control valves. 2. Differentiate between two-way three-way and four-way directional control valves. 3. Identify the graphical symbols used for directional pressure and flow control valves. 4. Explain how valves are actuated using manual mechanical fluid pilot and electric solenoid methods. 5. Describe the purpose construction and operation of various pressure control valves. 6. Differentiate between a pressure relief valve a pressure-reducing valve a sequence valve and an unloading valve. 7. Describe the purpose construction and operation of various flow control valves. 8. Differentiate between a noncompensated and a compensated flow control valve. 9. Describe the purpose construction and operation of mechanical-hydraulic and electro-hydraulic servo valves. 10. Discuss the purpose construction and operation of cartridge valves. 315 316 Control Components in Hydraulic Systems Chap. 8 11. Understand the operation of a hydraulic fuse and how it compares to a pressure relief valve. 12. Explain the operation of the various types of pressure and temperature switches. 13. Describe the purpose construction and operation of shock absorbers. 14. Calculate the power loss in pressure relief and unloading valves. INTRODUCTION One of the most important considerations in any fluid power system is control. If control components are not properly selected the entire system will not function as required. Fluid power is controlled primarily through the use of control devices called valves. The selection of these control devices involves not only the type but also the size the actuating technique and remote-control capability. There are three basic types of control devices I directional control valves 2 pressure control valves and 3 flow control valves. Directional control valves determine the path through which a fluid traverses within a

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• Fluid power with applications
• Hydraulic circuit design
• Pneumatics air preparation
• Fluid logic control systems
• Electrical controls
• Fluid power circuits
• Fluid power maintenance
• Properties of hydraulic fluids
• Power in hydraulic systems
• The distribution systems
• The source of hydraulic power pumps
• Fluid power actuators