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Fluid Systems

Section 5.7

Pages 255-262

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What is a Fluid System?

  • Fluid System: an arrangement of components used to transmit and control forces
  • In a general system, some sort of motor drives a pump which in turn transforms mechanical into fluid forces. Those forces act on the output device, called an actuator, which transforms the forces back into mechanical

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Hydraulic Press

  • Remember the hydraulic press?

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  • The diagram we looked at was a simplified version of one that may be found in industry.

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The Fluid Circuit diagram

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The Fluid Circuit diagram

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The Fluid Circuit diagram

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The Fluid Circuit diagram

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The Fluid Circuit diagram

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The Fluid Circuit diagram

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The Fluid Circuit diagram

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The Fluid Circuit diagram

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The Fluid Circuit diagram

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The Fluid Circuit diagram

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The Fluid Circuit diagram

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The Fluid Circuit diagram

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The Fluid Circuit diagram

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The Fluid Circuit diagram

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A true diagram of a �Hydraulic Press

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How do we read a Circuit diagram?

  • Take a look at the completed Hydraulic Press diagram - What is it telling us?
    • There’s a motor running an air compressor - it’s drawing in air
    • That air gets pushed into the storage tank to be used by the system
    • The stored air goes through a transmission line, through an on-off valve
    • It then goes through an air filter to take out impurities
    • It flows through a three-way valve
    • It puts pressure on the oil (acting as a piston), which in turn puts pressure on the piston (Pascal Principle)

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How can we apply fluid systems?

  • Fluid systems can be applied to fields like robotics
  • Hydraulic robots create no sparks, can be used in different applications
  • Pneumatic robots provide more cushioning, due to compressibility of gases

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Homework

  • Complete the worksheet
  • Page 261 #5
  • Page 251 #7 to hand in