Vacuum pump - definition

 
  Definition:   A vacuum pump is a pump that generates vacuum or further reduces the pressure of an existing vacuum. A vacuum pump can be a positive displacement pump that transports a gas load from an inlet port to an outlet, or exhaust, port. Vacuum pumps can also work on a momentum transfer principle, cryogenic entrapment principles as well as the positive displacement principle.
 
 

 

 

 
 
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