Liquid fuel vaporizer

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Mike Everman
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Post by Mike Everman » Wed Nov 19, 2003 5:37 pm

That's what I'm thinking, my friend makes rings of the stuff in various sizes for air bushings, and the stuff is fragile, but very stiff and strong when supported properly. currently the ring of porous carbon is epoxied into an aluminum tube. We'd need ceramic bonder and SS tube.
Mike
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cbromano
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Post by cbromano » Mon Jan 12, 2004 4:12 am

Being the Cheep skate i am i wonder if those air diffusers they use in fishtanks would be able to do anything to release fuel underpressure
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Post by Mike Everman » Mon Jan 12, 2004 6:30 am

I don't know, but a lot of different air and fuel pre-filters are porous sintered bronze. I was thinking of getting one really hot and pushing some white gasolene through it. I compressed some aluminum chips into a plug about 12mm dia and 20 long to try this out but I haven't yet.
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Mark
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Re: Under pressure

Post by Mark » Mon Jan 12, 2004 3:22 pm

Hank wrote:Hello- This certainly looks like an advance in available technology.

I'd question the manufacturer regarding the ability of this unit to work in the enviornment in question, i.e., the intake tract of a pulsejet engine.
From what I get from their promotion this unit is geared towards working in the ambient enviornment

Hank
I think the extreme vibration of the pulsejet might be detrimental to the porous structure. And I think the company is going to be crushed by the competition. I like propane or butaine flowing over a catalytic gauze as in all the neat little cigarette lighters that can take a lot of wind and work fine, and the flames come in your choice of colors! Oh, and if you want a laugh, compare the crux of the matter, the cost of theirs vs. a butaine lighter. If it isn't cost effective, it isn't going to fly.

http://cgi.aol.ebay.com/ws/eBayISAPI.dl ... tegory=595
http://cgi.aol.ebay.com/ws/eBayISAPI.dl ... tegory=595
http://cgi.aol.ebay.com/ws/eBayISAPI.dl ... tegory=595
http://cgi.aol.ebay.com/ws/eBayISAPI.dl ... tegory=595
etc. There's a lot of choices. I didn't have time to pick out the best examples.

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Post by Mark » Tue Jan 13, 2004 2:28 am

Here's an interesting site. I like the horror stories and the cautions the best. Flame on and get your torch out to play along.
http://www.blotorches.com/
Mark

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Post by mk » Thu Jan 29, 2004 8:58 pm

Has anybody ever considered fuel oil burners of home heating systems?

The burner contains an electric motor, a fuel pump and of course the vaporization nozzle. I got an used one from my uncle (he works at a heating system shop). He told me that the pump deliveres 5 to 20bar (I don't know in psi). Good vaporization takes place at about 10bar. He also said that there are different vaporizers available, which are different in the vaporization angle and the flow rate restriction.
If I get my lockwoods running on propane, I'll do some experiments with liquid fuels.

The only disadvantage is that the electric motor needs 230V/50Hz mains connection, though you won't be able fixing it on a cart or something.
But it should be optimal for static tests.

haaken
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Liquid fuel vaporizer

Post by haaken » Mon Mar 15, 2004 2:36 am

Why not use a vaporizer like the ones used in cerosene ovens?
These are fabricated of copper tubing, but you should use steel instead.

Just make a helix of thin steel tube and place it in the combustion chamber,
flatten the end of the tube a bit to create a nozzle.

Warm up your plusjet with a propane torch an then the fuel in the steel helix will start too boil and atomize fuel.

And it is cheap!

HÃ¥ken
Norway
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cbromano
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Post by cbromano » Wed Mar 17, 2004 7:01 am

What would the minimum pressure need to be so you wouldn't send the vapor back into the tank?
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