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Rotary Vane Pump

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Author: Joon

Group: Default

Filesize: 61.23 kB

Date added: 2013-12-27

Rating: 5

Downloads: 1538

Views: 478

Comments: 9

Ratings: 1

Times favored: 0

Made with: Algodoo v2.1.0

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The rotary vane pump uses the principle of hydraulics to move fluids. This type of pump is mostly used for supercharging, power steering, and automatic transmission.

Source(s): ISBN 978-1-4053-0238-8 or http://en.wikipedia.org/wiki/The_Way_Things_Work
Last edited at 2013/12/29 05:32:35 by Joon
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Correct me if I'm wrong, but I do not believe that this type of rotary vane pump, which compresses the "fluid", can operate with liquids (due to the fact that all liquids are incompressible). It can only work with gasses such as air.
Last edited at 2013/12/27 06:15:44 by Xray
I am not so sure, since a recent source I used read that this type of pump pumps petrol to vehicles. It appears to work in Algodoo, which is my main aim.
Please send me your source and I will take a look.
I searched the web and was not able to find a specific statement that says "a rotary vane pump cannot be used for pumping liquids". BUT I know beyond any doubt that liquids cannot be compressed, and so what the pump in this Algodoo scene is doing is a physical impossibility. It happens in spite of the physics because Algodoo is not perfect, and does have some flaws and inaccuracies. Liquids in Algodoo, under certain situations, CAN be compressed!

It's my understanding that there are two types of rotary vane pumps. The type used for transferring liquids does not have an offset rotor shaft and therefore it simply "pushes" the liquid through the pump in sort of a "bucket brigade" fashion. So, in other words, the liquid gets transferred, but it does not get compressed. The other type of pump has an offset rotor shaft (like the one in your scene), and because it does compress, it can only be used for gasses. So, the type used for liquids can be called a pump, but it cannot be called a compressor. The type used for compressing gasses can of course be called a compressor.

I wish I could find a web link to back up what I'm telling you, but at this point I cannot. Maybe someone else could chime in with some knowledgeable information to either support or rebut what I said.

Xray
Last edited at 2013/12/27 06:45:57 by Xray
Xray,

I do not know what to say.

Other variations of the vane pump include drilling holes, whereas rather than squeezing the fluid, it is somewhat pushed through these holes by the decreasing volume, and propelled upwards.

Several trials have ended in failure.
I can say that I think you actually aren't new on algodoo. Right? :lol:
I started tinkering around with Phun 7 years ago, but I'm still a little bit rusty with Algodoo.
Last edited at 2013/12/28 06:24:40 by Joon
lol
I agree with Xray and see that I have made the same mistake with the sliding vane pumps that I have made. I think that sliding vane hydraulic pumps exist, but they definitely don't compress the oil (much). I think the reason they work is that the inlet and outlet ports are designed so that the oil does not get compressed when pumped from inlet to outlet.

P.S.: I have the book and on page 132 it states that "Rotary vane pumps are often used to deliver fuel at gas stations."
Last edited at 2013/12/30 23:51:48 by s_noonan
Yes, that's true about gas stations employing rotary vane pumps for pumping fuel, and I'm pretty sure that the rotor is concentric with the stator in that type of application. The type of rotary vane pump that has an offset rotor (non-concentric) is typically used for compressing gasses, and (as I use in my X-ray repair business) is often used as a vacuum pump.
Last edited at 2013/12/31 00:43:43 by Xray