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What (who) is vacuum pump - definition
Vacuum pump
![Student of [[Smolny Institute]] Catherine Molchanova with vacuum pump, by [[Dmitry Levitzky]], 1776](https://commons.wikimedia.org/wiki/Special:FilePath/Molchanova by levitskiy.jpg?width=200 "Student of [[Smolny Institute]] Catherine Molchanova with vacuum pump, by [[Dmitry Levitzky]], 1776")
EQUIPMENT PRODUCING LOW AIR PRESSURE
Vacuum Pump; Positive displacement vacuum pump; Void pump; Vacuum-pump; Suction pump; Momentum transfer pump; Gas throughput
A vacuum pump is a device that draws gas molecules from a sealed volume in order to leave behind a partial vacuum. The job of a vacuum pump is to generate a relative vacuum within a capacity.
suction pump
EQUIPMENT PRODUCING LOW AIR PRESSURE
Vacuum Pump; Positive displacement vacuum pump; Void pump; Vacuum-pump; Suction pump; Momentum transfer pump; Gas throughput
¦ noun a pump for drawing liquid through a pipe into a chamber emptied by a piston.
Rotary vane pump
A rotary vane pump is a positive-displacement pump that consists of vanes mounted to a rotor that rotates inside a cavity. In some cases these vanes can have variable length and/or be tensioned to maintain contact with the walls as the pump rotates.
Examples of use of vacuum pump
1. The blisters were deliberately inflicted on the test subjects by using a vacuum pump on the arm.
2. During the procedure unwanted fat is sucked out from underneath the skin through a tube and vacuum pump.
3. While driving, you hear only a low rumble from the fuel cell‘s compressor and the brakes‘ vacuum pump, complemented on acceleration by a jet–taking–off whine.
4. They and other colleagues devised a method of collecting air samples, using a contraption built with a vacuum pump from Home Depot drawing air through a two–inch round sterile filter.
5. A ventouse vacuum pump can also be used to help move on the birth, but this can lead to the baby‘s head being misshapen for a few days afterwards.