Talk:Vacuum pump
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[edit] Scroll pumps
Maybe someone can tackle how a scroll pump works...
- I think we'd need an animated GIF for that one! It's pretty hard to visualize those sliding points of contact working their way closer and closer to the exhaust with every oscillation of the moving spiral.
- Atlant 21:59, 20 Jun 2005 (UTC)
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- Done, Cacycle 22:37, 14 May 2006 (UTC)
[edit] Throughput definition
The current definition of throughput includes the sentence At a constant temperature, throughput is proportional to the number of molecules being pumped per unit time, and therefore to the mass flow rate of the pump. (Think PV=nRT). I think the phrase "at a constant temperature" may be misleading/incomplete because the temperature at the inlet of a pump will not be constant, and is generally not measured. Most pumps preferentially remove slow, heavy molecules, leaving behind light fast molecules at a higher temperature. But even without constant temperature, throughput is still proportional to the number of molecules being pumped per unit time, and therefore to the mass flow rate of the pump.--Yannick 15:32, 2 April 2006 (UTC)
[edit] Separate page for Toepler pump?
It's a good first-principles example of a positive-displacement pump, but it's not really a vacuum pump in the common-language sense ("pump out the stuff in a container"). Maybe it should have its own page? DMacks 05:56, 10 May 2006 (UTC)
[edit] Material Handling
A very common use of vacuum pumps in manufacturing is to move material from one place to another within a factory. For example, Conair Frainklin and AEC Whitlock sell vacuum loader systems for this specific purpose.
- Please feel free to be bold and add information about this! Certainly in semiconductor fabrication, vacuum-pickers (both manual and automated) are used practically everywhere. Vacuum pumps were also used in computer card readers and high-performance magnetic tape drives.
- Atlant 16:07, 9 June 2006 (UTC)
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- Even in some fancy ice cream vending machines:) DMacks 17:41, 9 June 2006 (UTC)
