You only need a electric drill and it is very easy to get the high vacuum.LOOK AT THE PHOTOS!
- A 150W mechanical vacuum pump
- Open it
- Link it like the photo
- the higher vacuum
- put more vacuum pump oil in it
- use the bigger electric drill
How to improve your mechanical vacuum pump
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HEAVY WATER
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- Real name: å½è¯‘锋(peng yi feng)
- Location: CHINA
How to improve your mechanical vacuum pump
If you have a small mechanical vacuum pump.How can you improve it?
You only need a electric drill and it is very easy to get the high vacuum.LOOK AT THE PHOTOS! Isn't enough?You can put more vacuum pump oil in it vacuum pump and use the bigger electric drill.
You only need a electric drill and it is very easy to get the high vacuum.LOOK AT THE PHOTOS! Isn't enough?You can put more vacuum pump oil in it vacuum pump and use the bigger electric drill.
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Andrew Robinson
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Re: How to improve your mechanical vacuum pump
I'll wait for one of Richards classic comments here 
I can wire anything directly into anything! I'm the professor!
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Richard Hull
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Re: How to improve your mechanical vacuum pump
No witty comments needed. What is needed is a good high vacuum TC gauge, of course.
Richard Hull
Richard Hull
Progress may have been a good thing once, but it just went on too long. - Yogi Berra
Fusion is the energy of the future....and it always will be
The more complex the idea put forward by the poor amateur, the more likely it will never see embodiment
Fusion is the energy of the future....and it always will be
The more complex the idea put forward by the poor amateur, the more likely it will never see embodiment
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Doug Browning
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Re: How to improve your mechanical vacuum pump
MacGyvering tech:
Five vacuum cleaners in series should work too (reportedly each can do 20 % of 1 ATM). So put those on the outlet of the vane pump to get a 2 stage pump. Then put 283 stacked Muffin fans on the pump inlet side to fill in for the turbo.
(Pfeiffer TPU 050 runs at 90,000 RPM and has 11 rotors and 11 stators. 2 pole/60 Hz Muffin fan runs at 3500 RPM. So, 90,000/3500 * 11 => 283 ; needs CW and CCW fans alternated. )
Looks like the usual turbo might be cheaper. A lot of odd O rings needed for all those Muffin fans too. Maybe could glue them together. For throttled Fusor use, could probably get away with a factor of 10 or 20 less compression ratio though. Then only 14 computer fans (magnetic bearing type) at maybe $2 each off Epay China. Could just stuff them into a foot long 3" diameter ISO 80 pipe with some conductance limiting packing around them.
Five vacuum cleaners in series should work too (reportedly each can do 20 % of 1 ATM). So put those on the outlet of the vane pump to get a 2 stage pump. Then put 283 stacked Muffin fans on the pump inlet side to fill in for the turbo.
(Pfeiffer TPU 050 runs at 90,000 RPM and has 11 rotors and 11 stators. 2 pole/60 Hz Muffin fan runs at 3500 RPM. So, 90,000/3500 * 11 => 283 ; needs CW and CCW fans alternated. )
Looks like the usual turbo might be cheaper. A lot of odd O rings needed for all those Muffin fans too. Maybe could glue them together. For throttled Fusor use, could probably get away with a factor of 10 or 20 less compression ratio though. Then only 14 computer fans (magnetic bearing type) at maybe $2 each off Epay China. Could just stuff them into a foot long 3" diameter ISO 80 pipe with some conductance limiting packing around them.
Last edited by Doug Browning on Wed Nov 05, 2014 3:30 pm, edited 3 times in total.
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HEAVY WATER
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- Location: CHINA
Re: How to improve your mechanical vacuum pump
I don't have a a good high vacuum TC gauge.I think that I must buy one now.Richard Hull wrote:No witty comments needed. What is needed is a good high vacuum TC gauge, of course.
Richard Hull
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Chris Bradley
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Re: How to improve your mechanical vacuum pump
Sell it and use the money to help replace it with something bigger?HEAVY WATER wrote:If you have a small mechanical vacuum pump.How can you improve it?
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HEAVY WATER
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- Real name: å½è¯‘锋(peng yi feng)
- Location: CHINA
Re: How to improve your mechanical vacuum pump
But I don't know where can I buy the diffusion pump with a cheap priceChris Bradley wrote:Sell it and use the money to help replace it with something bigger?HEAVY WATER wrote:If you have a small mechanical vacuum pump.How can you improve it?
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Andrew Robinson
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Re: How to improve your mechanical vacuum pump
Peng yi feng,
I think you need to do some more reading first. Spend some time in the FAQs.
I think you need to do some more reading first. Spend some time in the FAQs.
I can wire anything directly into anything! I'm the professor!