What are the different types of vacuum pumps

WHAT ARE THE DIFFERENT TYPES OF VACUUM PUMPS?

1. "Rotary vane vacuum pump" The rotary vacuum pump uses a revolving cylinder to pull gas molecules closer together, creating vacuum.

The rotating movement of the cylinder creates vacuum by pulling gas molecules closer together using centrifugal force. As the vacuum increases, atmospheric pressure overcomes this centrifugal force, at which point the vacuum process stops.

2. "Diaphragm vacuum pump" The diaphragm vacuum pump acts as a bellows to pull gas molecules closer together, hence creating vacuum. This vacuum is achieved by the expansion of the pump's chamber that is created when an object attached to its diaphragm separates air into two volumes: one side of the pump chamber will be vacuum and the other air.

3. "Oil rotary vacuum pump" The oil rotary vacuum pump uses a curved rotor that operates at high speed to pull gas molecules closer together, hence creating vacuum. This vacuum is achieved by rotating the curved rotor with an attached shaft within a vacuum chamber. The vacuum is created by the air's centripetal force pulling gas molecules closer together until vacuum equilibrium is reached.

4. "Diffusion vacuum pump" The diffusion vacuum pump uses a high-temperature filament to create a vacuum, which then pulls surrounding gas molecules closer together, hence creating vacuum. This vacuum is achieved by drawing gas molecules to the vacuum chamber's heated filament. As vacuum increases, gas molecules are drawn closer together until equilibrium is reached within the vacuum chamber.

5. "Reciprocating vacuum pump" The reciprocating vacuum pump uses a piston connected to a metallic rod with one end exposed to atmospheric pressure and another end exposed to vacuum pressure. As vacuum increases, gas molecules are pulled closer together until equilibrium is reached within the vacuum chamber.

6. "Sputter-ion pump" The sputter ion pump also uses a high-temperature filament, just like the diffusion vacuum pump, but has more components that separate the vacuum chamber into several vacuum chambers with respective vacuum levels. This vacuum pump is used in vacuum deposition systems that include vacuum chambers with different vacuum levels to deposit substances at a lower vacuum level than the source material's vacuum level.

7. "Mechanical booster and backing pumps" The mechanical booster and backing pumps use a piston or displacement pump to create vacuum by drawing gas molecules closer together, hence creating vacuum. The vacuum used by the mechanical booster and backing pumps are not produced mechanically but by the vacuum oil in their respective vacuum chambers.

8. "Gauge vacuum pump" The mechanical differential vacuum pump uses an increased pressure on one side of a diaphragm to pull gas molecules closer together, hence creating vacuum. This vacuum level is measured against atmospheric pressure on the diaphragm's other side, hence the name 'differential vacuum pump.'

9. "Dry vacuum pumps" The dry vacuum pump uses a metal or ceramic piston and cylinder within a vacuum chamber to create vacuum by pulling gas molecules closer together, hence creating vacuum. This vacuum is achieved by creating vacuum between the vacuum chamber's metal or ceramic piston and cylinder.

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