Introduction to Hydraulic Pump Design and Pump Efficiency
The purpose of this project is to deepen your understanding of the different types of hydraulic pumps and how they operate. You will also learn how to differentiate between fixed and variable displacement designs and how to calculate pump efficiencies (mechanical, overall, and volumetric efficiencies). The majority of the above learning will be accomplished by using visualization techniques which will involve basic and detailed drawings and/or diagrams. Remember the old saying: “A picture speaks a thousand words.”
1) Identify the (3) major pump types used in fluid power systems.
2) Distinguish between fixed and variable displacement designs of the above pump types.
3) Describe the operation of the above various pump types using visualization techniques.
4) Understand that every pump design has limitations and is not 100% efficient.
5) Explore trade-offs between pump types.
Instructions:
Draw and label each part of the following types of pumps and explain how they function to produce hydraulic fluid flow:
1. Gear Pump (fixed)
2. Vane Pump (fixed)
3. Vane Pump (variable)
4. Piston Pump (fixed)
5. Piston Pump (variable)
For starters, read the assigned text and watch the following video that shows animations of hydraulic pumps and use it to inform your design practice.
https://www.youtube.com/watch?v=Qy1iV6EzNHg (Links to an external site.)