A vacuum pump is a mechanical
compressor that operates at less than [atmospheric pressure]
?. A vacuum pump can be a positive displacement pump that transports a gas load from an inlet port to and outlet, or exahust, port. Vacuum pumps can also work on a [momentum transfer]
? principle, [cryogenic entrapment]
? principles as well as the [positive displacment]
? principal.
Types of Vacuum Pumps