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Accessory Components in Hydraulic Systems

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Functioning, working, advantages and disadvantages of Hydraulic Accessories were illustrated in the presentation.

For seminar handout, click the following link:
https://www.slideshare.net/secret/EraSXN5R4UknnM

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Accessory Components in Hydraulic Systems

  1. 1. Accessory Components in Hydraulic Systems By Krupa Vara Prasad M.Tech (Automobile Engineering) Department of Automobile Engineering Hindustan Institute of Technology and Science.
  2. 2. Necessity of Accessories 1. To Increase the efficiency namely Accumulators that store fluid energy. 2. To control the system, such as pressure switches to ON/OFF the system. 3. To measure – either pressure and flow. 4. To minimize the number of fittings – namely manifold.
  3. 3. List of Accessories used in Hydraulic Systems 1. Accumulators 2. Pressure Switches 3. Pressure Gauges 4. Flow Meters 5. Manifolds 6. Pressure Intensifiers
  4. 4. Accumulators Purpose and its types They are used to 1. Store energy and supply when needed. 2. Serve as leakage compensators. 3. Serve as emergency power sources. 4. Serve as shock absorbers. Types: 1. Weight loaded Type 2. Spring loaded Type 3. Gas loaded Type
  5. 5. Types of Accumulator Weight Loaded Accumulator
  6. 6. Types of Accumulators Spring Loaded Accumulator
  7. 7. Gas Loaded Accumulator • These accumulators obey Boyle’s Law. • They use compressed gas to give the dynamic force. • They are used in almost all industrial applications. • They are also called as “Hydro-Pneumatic Accumulators.”
  8. 8. Classification of Gas Loaded Accumulators Gas Loaded Accumulators Non Separator Type Separator Type Piston Type Diaphragm Type Bladder Type
  9. 9. Gas Loaded Accumulator Types Non - Separator Type
  10. 10. Separator Type Accumulators Piston Type Accumulators
  11. 11. Piston Type Accumulators Disadvantages 1. It is very expensive to manufacture. 2. Piston and seal friction is a problem in low pressure system. 3. There is always a leakage due to long period frequent pre-charging. 4. They cannot be used as pressure pulsation dampers and shock absorbers due to inertia of piston and friction of seals.
  12. 12. Separator Type Accumulators Bladder Type Accumulators
  13. 13. Pressure Switches Types of Pressure Switches: 1. Diaphragm Type 2. Bourdon Tube Type 3. Sealed Piston Type 4. Dia-seal Piston Type
  14. 14. Pressure Gauges • Pressure Gauges are used to measure the pressure level in the hydraulic system. • Mostly Bourdon Tube pressure gauges were widely used.
  15. 15. Flow Meters • Used to measure the amount of flow in an hydraulic system.
  16. 16. Pressure Intensifier
  17. 17. Conclusion  Accumulator is heart of the Hydraulic System.  Pressure should be calculated carefully while designing a hydraulic system.  An engineer should be aware of hydraulic accessories and its performance characteristics.  An engineer should asses the system requirements and choose the right hydraulic accessory related to pressure maintenance in circuit.  Hydraulic accessories should be maintained properly.  Pressure intensifiers is an important component in Hydraulic System.
  18. 18. References 1. Hydraulics and Pneumatics Control by K. Shamuga Sundaram, S.Chand Publications. 2. Wikipedia Inc. 3. Hydraulics and Pneumatics https://www.hydraulicsandpneumatics.com 4. Hydraulic Valve https://www.valvehydraulic.info/ 5. Hydraulic Machinery Control http://www.iranfluidpower.com/pdf/All%20hydraulics/Accumulator s.pdf 6. Modern Industrial Hydraulics http://www.modernhydraulics.net
  19. 19. THANK YOU
  • MohitZala1

    Jul. 23, 2018

Functioning, working, advantages and disadvantages of Hydraulic Accessories were illustrated in the presentation. For seminar handout, click the following link: https://www.slideshare.net/secret/EraSXN5R4UknnM

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