| Whether it is filling gas in the car at a local gas | | | | former type forces the fluid from one chamber |
| station, pumping water into the backyard pool or | | | | to another by reducing the volume of the first |
| blowing balloons for a kids birthday party, pumps | | | | chamber while increasing the volume of the |
| have played an important part in our lives since | | | | second. A pump usually maintains a constant flow |
| their discovery several centuries ago. | | | | unless the intake pressure drops below a certain |
| A pump is a mechanical device used to lift, | | | | limit and causes a phenomenon called cavitation. |
| transfer or increase the pressure of a fluid or to | | | | Moreover, when the pressure exceeds the |
| create a vacuum in an enclosed space by the | | | | capacity of the pump, the pump may fail. |
| removal of gas. The history of the first pump | | | | Reciprocating pumps, power pumps, steam |
| traces back to several centuries. The first known | | | | pumps and rotary pumps are a few examples of |
| pump is the Archimedes screw pump in the 3rd | | | | positive displacement pumps. |
| century BC. The concept behind pumps has | | | | The second type, dynamic pumps, causes the |
| remained the same since then. | | | | fluid to move from the inlet to the outlet under |
| We encounter pumps in all aspects of life. From | | | | its own momentum. Unlike the positive |
| medicine and industry to entertainment and | | | | displacement pumps, dynamic pumps do not need |
| household uses, the pump has been a vital part of | | | | a release valve for the extra pressure. Today, |
| our lives over the years. Pumps can be broadly | | | | these simple devices have become an integral |
| classified into two categories: positive | | | | part of our lives. Pumps have certainly influenced |
| displacement pumps and dynamic pumps. The | | | | our lives in a positive way. |