When.com Web Search

Search results

1. Results From The WOW.Com Content Network

2. Rotary vane pump - Wikipedia

   en.wikipedia.org/wiki/Rotary_vane_pump

   Furthermore, vane pumps can be used in low-pressure gas applications such as secondary air injection for auto exhaust emission control, or in low-pressure chemical vapor deposition systems [citation needed]. Rotary-vane pumps are also a common type of vacuum pump, with two-stage pumps able to reach pressures well below 10 −6 bar.

3. Pump - Wikipedia

   en.wikipedia.org/wiki/Pump

   Screw pumps – the shape of the internals of this pump is usually two screws turning against each other to pump the liquid; Rotary vane pumps; Hollow disc pumps (also known as eccentric disc pumps or hollow rotary disc pumps), similar to scroll compressors, these have an eccentric cylindrical rotor encased in a circular housing. As the rotor ...

4. Rotary compression pump - Wikipedia

   en.wikipedia.org/wiki/Rotary_compression_pump

   The maximum efficiency of a rotary compression pump is the ratio between the volume in contact with the vacuum and the smallest contracted volume in contact with the valve. If the ratio is 1:1000 and the pump is exhausting to atmospheric pressure, the highest achievable vacuum is 1/1000 of atmospheric pressure.

5. Comparison of pumps - Wikipedia

   en.wikipedia.org/wiki/Comparison_of_pumps

   Different types of pumps are suitable for different applications, for example: a pump's maximum lift height also determines the applications it can be used for. Low-lift pumps are only suitable for the pumping of surface water (e.g., irrigation, drainage of lands, ...), while high-lift pumps allow deep water pumping (e.g., potable water pumping ...

6. Rotodynamic pump - Wikipedia

   en.wikipedia.org/wiki/Rotodynamic_pump

   A rotodynamic pump is a kinetic machine in which energy is continuously imparted to the pumped fluid by means of a rotating impeller, propeller, or rotor, in contrast to a positive-displacement pump in which a fluid is moved by trapping a fixed amount of fluid and forcing the trapped volume into the pump's discharge. [1]

7. Air pump - Wikipedia

   en.wikipedia.org/wiki/Air_pump

   All air pumps contain a part that moves (vane, piston, impeller, diaphragm etc.) which drives the flow of air. When the air gets moved, an area of low pressure gets created which fills up with more air. [1] Pumps and compressors use very similar mechanisms, and basically perform the same action, but in different fluid regimes.