Liquid Piston Steam Engine

This liquid piston engine is not the usual Stirling Cycle type. It appears to run from steam and has no displacer piston loop. When starting, It does not matter if the tube is completely filled with water or if there is an air bubble inside. After heating, a steam gap or combination steam - air gap forms as shown in the drawing.

Presently I can not say for sure if this is a Stirling engine, a steam engine or both.

This liquid piston engine is simply an inverted U shaped copper tube connected to a clear vinyl tube. The clear tube is away from the heat and allows observation of the liquid motion. The copper tube is 3/8 inch outside diameter and the clear vinyl tube is 3/8 inch inside diameter. The brass fittings on the end of the copper tube are simply a means of sealing the end shut. The other end of the vinyl tube is open.

The clear vinyl tube is much longer than necessary because I did not want to cut it.

It runs well whenever it is heated anywhere on the right side of the copper tube up to the top. With heat applied anywhere on the left side, the liquid piston behaves much differently with an asymmetrical motion that usually settles to no motion at a higher level.

The tape at the top of the copper tube covers a small 1/16 inch hole which facilitates the job of filling the tube with water.

Category:

Science & Technology

Tags:

• stirling
• steam
• engine
• liquid
• piston
• fluidyne
• hot
• air
• thermoacoustic
• oscillator
• resonance
• rijke
• tube
• reubens
• nyle
• steiner
• k7ns

[1crazyfocker]

it is a Fluidyne Stirling Engine.... sorry to say it dude but good job on coming up with it on your own, but if you loo up that type of stirling you will see it is the same the part that goes way up (clear vinyl tube) is the work piston you can hook it up tp a pump to pump water....thins like that.

[nylesteiner]

I have built a Fluidynes in the past and have read about them but the configuration of this liquid piston steam engine is quite a bit different from the Fluidyne and is simpler.

[liveuk]

library thinkquest org 29033 gather/qaboard messages 111 html you will need to adjust this url lol

Check that out then check out pop pop indian engines very old from when Sterling was alive Idian did it different lol.

Wel done making that and thinking of it without knowing but better to read up first re inventing the wheel is a soul destroying thing.

[85lawandafarley85q]

lÓl_ï_signéd_ùp_ät_fùll_tilt_p­òkêr

_ûsïñg_reférräl_códe:_YOU600_ã­ñd_göt_a_600_dóllar_bonus

[Chronox5]

haha, i discovered this by accident but i didn't know what caused it until i saw your video. i actually tried to stop the up&down because i wanted a steady steam output.

It's kind of an embarassing question but how did you connect the plastic tube to the copper one, when ever i reach the boiling point it tends to slip off or get an air leak because of the pressure?

[DanFrederiksen]

I don't get it, spastic hoses? why

[josephdupont]

Well if this dude did not come up with this.. i would not know about it.

put a cork on a magnet and have some coils.

[microblah]

@nylesteiner It's effectively the same as a Pop Pop boat engine.

[KWAZAI]

I think even with a little steam it will run at half the hz of either a rijke tube resonator or sondhauss tube resonator not sure why though.

I posted mine (in case you wanted to see.

[AussieJimG]

Hi Nyle, I think you will find that this engine is a water pulsejet. Peter Payne's US Patent Applications describe how they work. They are related to the toy "pop pop" boats. I knew they could be used as a pump but could not get one to work. This is the first time I have seen one used in this mode. Very good.