UGROW

 
Study of flow rates variations using many different types of hydraulic components and the effect of pressure differentials and temperature changes of the fluid

Dr. Brink, McCoy School of Engineering

Objectives:

  1. Study the different types of flow control valve mechanical configurations as used in hydraulics, such as gate valves, globe valves, needle valves etc.
  2. Study the different designs used for simple flow control valves, pressure compensated flow control valves and pressure and temperature compensated flow control valves. The student also will study the difference between these types of valves, when pressure differential changes occur across the valve and/ or temperature changes of the fluid.
  3. Study and build a variety of flow control valve circuits such as:
    a. meter-in
    b. meter-out
    c. bleed-off
    d. Regenerative circuits
    e. Rapid Traverse Feed circuit using: 1. One Large Pump 2. Hi-Lo Circuit 3. Pressure compensated variable volume pump. (Note: we can only do part one).
    f. Accumulator circuit used to develop flow.
    g. Use of flow divider circuits in hydraulic circuits, Study different designs of these flow dividers.
    The student will also design and simulate these circuits using Automation Studio.
  4. Student will build Cartridge Valve Flow Control Valve Circuits.
  5. Student will build an electronic servo valve hydraulic system using a LVT = Linear Velocity Transducer Feedback.
  6. Student will also study electronic proportional valve circuits.
  7. Student will study and compare (1) fixed displacement pumps, (2) variable displacement pumps, (3) variable volume and pressure compensated pumps and (4) load sensing pumps in their ability to adjust flowrates and efficiency responses.
Expected Outcomes and Deliverables:
  1. Deep knowledge gained on many different flow control systems as used for the speeds and RPM of hydraulic actuators.
  2. Comparison of data results using tables and figures.
  3. Hands-on experience in the building of many hydraulic circuits in the lab.
  4. Use of Automation Studio to draw, analyze and simulate many circuits.
  5. We hopefully get a refereed paper out of this, or a presentation in a Proceeding.