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How to make a mini jet engine? Answered

Hi Everyone,

I have seen on YouTube (and here on instructables) how to make a small jet engine from a few parts..... I used a metal tube and put  standard lighter nozzle on one end and drilled a couple of holes in the middle. When I lit it, all i got was a regular flame out of the end. I know I'm doing Something wrong, I just don't know what. Can someone please shed some light on this?

Thanks in Advance!!!
Mr. Electric

Discussions

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tragicallyhip

7 years ago

what your making is a pulse jet motor ( GermanV1), what is missing is the compression of the hot gases coming out the back, you will need to bodge a junkyard TurboCharger to the combustion chamber to compress the hot gases and create thrust.

good luck

Tragic

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steveastrouktragicallyhip

Answer 7 years ago

Well, it would be, if there were any provision for valves, or it was a reflex tube "valveless" one.

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Mr_Electricsteveastrouk

Answer 7 years ago

I think the problem is that the air and fuel isn't mixing enough inside the chamber, that's why I get a regular flame out the end...any ideas on how to make the mixture good?

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Mr_Electric

7 years ago

So is there a specific place where i should drill the air holes or? I did some further research and found out that the one I'm trying to build is quite similar to that of a blowtorch or bunsen burner. Do you know how I should set up the venturi tunnel?

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steveastrouk

7 years ago

These "mini jet engines" are nothing of the sort, they are glorified gas torches.

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mpilchfamily

7 years ago

Sounds like your not getting enough fuel and air into the container. You need to have the right mixture of fuel and air so a small explosion is created inside the chamber. If you don't have the right mix then all you will get is a steady flame out the back. The explosion needs to be big enough that it forces flames out the back but not so big that the chamber becomes a bomb.