Jam jar jet fuel system

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Valveless Sam jet
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Jam jar jet fuel system

Post by Valveless Sam jet » Tue Jul 29, 2014 6:39 pm

If anyone else has heard of the jam jar jet (tin can pulsejet) do you think it would be possible to insert a steel pipe through a hole in the side and attach a fuel pump so I can get a nice long run from it :D . Bye

Mike Everman
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Re: Jam jar jet fuel system

Post by Mike Everman » Sun Aug 10, 2014 10:06 pm

You can do a drip feed, but then the critical thing is a cooling water jacket. Jam jars get too hot.
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metiz
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Re: Jam jar jet fuel system

Post by metiz » Sun Aug 10, 2014 11:10 pm

But don't get it too cold, because it won't like that either
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jamjarjim
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Re: Jam jar jet fuel system

Post by jamjarjim » Tue Aug 12, 2014 10:58 am

Have you seen this??

http://www.youtube.com/watch?v=8krnOeql ... detailpage

Theres not much info with the videos. Is Kevin Lee a memeber of this form????

Regards, Jim

Pyromaniac
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Re: Jam jar jet fuel system

Post by Pyromaniac » Sat Sep 20, 2014 10:06 am

Couldn't you just attach a one-way valve to a fuel pipe and do a suction feed?

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Re: Jam jar jet fuel system

Post by jamjarjim » Sun Sep 21, 2014 9:47 am

What kind of one way valve would you use?

Jim.

Pyromaniac
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Re: Jam jar jet fuel system

Post by Pyromaniac » Mon Sep 22, 2014 3:39 am

I don't know anything about one way valves. Anything with a fast response (how many hertz does a jam jar max out at?)

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Re: Jam jar jet fuel system

Post by Pyromaniac » Mon Sep 22, 2014 3:40 am

Pyromaniac wrote:Couldn't you just attach a one-way valve to a fuel pipe and do a suction feed?
I meant pressure feed.

VicHanby
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Re: Jam jar jet fuel system

Post by VicHanby » Fri Oct 24, 2014 10:20 am

Pyromaniac wrote:I don't know anything about one way valves. Anything with a fast response (how many hertz does a jam jar max out at?)
I've attached a pdf of the pressure trace from a Reynst pot taken from a paper published in 1967. The major time divisions in pic (a) are 0.1 sec so it's frequency is ~ 58Hz. This isn't a jam jar, it was 3.64in id, 8.5 in long and 9/16 in hole.

Vic

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