Vacuum engine

[AntoMelta]

I am very happy to see the vidoe after you give this Vacuum engine

[willamricard]

I Love The Video It Can Increase My Knowledge Vacuum engine

[imegatrone]

Steady I Really Like This Video Vacuum engine

[Melehete]

Good, I like that you share this video Vacuum engine , I wish success always

[NganaJHone]

Nice Video Vacuum engine That You Share , So Very Nice Thanks You

[Ondelendo]

I Really Like The Video From Your Vacuum engine

[bundawartini]

Your Video Is Very Useful Sharing Vacuum engine

[farn1991]

...

Cooling the tube to lower air temperature would take more power than the engine can give.

[SMGJohn]

LOL I tried making this in LEGO. It turned out it was not a good idea...

[islandfireballkill]

than god for paint

[MrToiletface]

considering gas isnt a renewable resource but alcohol is, these engines, if running on alcohol, should be the enviornmentalists first choice in small engines and generators. 2 strokes can run on alcohol and turpentine, but it ll damage ur engine unless properly engineered for such fuels

[brokenbutterfly8]

looks goddamn silly :D

[Dg2811live]

what program did you make this ??

[KarlBednarik]

@Dg2811live

the program  KURBEL-3.txt is on my internet site,

the program language GWBASIC.EXE is on my internet site,

complete adresses are blocked by YouTube,

but is my internet site on my YouTube channel,

Microsoft Windows 98,

Microsoft Paint,

Microsoft Gif Animator,

Pinnacle PCTV.

[KarlBednarik]

@Dg2811live

see also in german wikipedia,

Vakuummotor.

[starr8719]

who said anything about this being efficient , Its just a model .

[NerexisPL]

Stirling engine is about 40% efficent.

[slavipop]

what is the angle

[TABAGfrancis]

Please watch:

World's Greatest Amount of Compression Ratio Engine

[MrBigangry]

I think the point is, you need a source of heat to run this engine. There are far more efficient ways to generate energy with less heat. You are basically saying lets scrap everything we know because your a god damn hippy lol. if you are interested in this subject please watch greenpowerscience on you tube.

[MrBigangry]

I think the point is, you to to generate heat somehow with this engine and there are WAAAAAAAAAAAAAYYYYYY more efficient ways to do so. Using a free energy source like the sun however......

[legox50]

For a moment there, I thought it was a stirling engine! The thing I'm confused about is how the flame gets sucked into the cylinder.

[AUTURBO6]

Man, how inefficient is this design. lol. Im blown away by the intellegence of it's inventors though.

[prerakchitnis]

VERY GOOD WORK karlbednarik

i have done my seminar report on vacuum engine whom so ever need the thermal and dynamic analysis or the entire flame engine report can send me request on my mail id prerakchitnis@gmail.com

[BlueDragon4484]

This shows how it works, Perfectly!

[tjorvenxD0o01ste]

i lurn about this in school

[OregonDARRYL]

@tjorvenxD0o01ste You "lurn" about this in school? Maybe next year, they can help you with spelling....

[tjorvenxD0o01ste]

@OregonDARRYL i have dyslexia and im not englisch or american. your like the 10th ashole that coments about my spelling

[OregonDARRYL]

@tjorvenxD0o01ste Gee, I'm sorry you have dyslexia, I didn't know. I also didn't know you were such a dick.

[tjorvenxD0o01ste]

@OregonDARRYL im not a dick its just realy anoying

[DrMcToe]

Illustration is the best way to explain! thank you!! Danke!

[andreas2tv]

is the stirling engine better or not?

[COD5252]

air is not expanding inside the cylinder therfore engine will come to hault after sometime

[Otaku35]

thats a good idea

[PistolPete2]

Back in the days, car windshield wipers operated with a vacuum motor

which ran off the engines manifold vacuum. They worked pretty well except

if you started to pass another car and jammed the accelerator, the vacuum

went away and the wipers stopped. Some models used a double acting

fuel pump with one side being a vacuum pump. This helped a lot.

[okayamatonokumi]

わかりやすいね

[madscirat]

Interesting. It seems like you could have another with its cycle 180 degrees out of phase directly opposite and running off the same flame. Man I love old engines like these. It would probably work even better bc/ the second engine would pull the flame away from your cylinder on the cold stroke.

[nltubeyou]

Cool!

[elshraah]

very good

[buffloriders]

a good option for the internal splines would be the coupling used on farm machinery, its a 2" splined shaft and matching coupling that slides over it... just a thought

[khuongdung]

In the same size Is this stronger than Alpha type?

Which is the strongest type?

[khuongdung]

In the same size Is this stronger than Alpha type?

[jb1953oliveira]

Gostaria de saber o material usado na construção desse motor, curso e diametro do pistao, material usado no anel de compressão e todas a informações tecnicas..

Obrigado!

[cacafito]

Hola jb1953:

Yo no hablo portugués, pero estoy seguro que nos vamos a entender.

Este es sólo un esquema de cómo funciona el motor, así que no hay materiales. Puedes ingeniártelas.

[jb1953oliveira]

Ok Cacafito, agradeço pela informação! Na verdade eu jah consegui fazer o meu motor! Consulte youtube, na conta de minha filha Thais Tripode. Ele estah lah!

Muito obrigado!

Abraços!

[HWGuyEG]

I wonder how much better that would cool if someone machined a cylinder and piston that looked more like a gear... surface area on the outside is easy, but it's the inside that's the problem...

[robinhooodvsyou]

Do you mean like cooling fins ?

-It would be much more efficient with 2-3 times bigger cooling surface, that with a water cooling and some radiator would be amazing....

[HWGuyEG]

Dissipating heat on the outside is easy since you can have a dense copper fin block, like the heatsinks used on 1U server CPUs... if a passive water convection loop was used that would shed tons of heat.

But, inside the piston, it's just a smooth cylinder, which doesn't conduct heat very well because of it's small surface area in relation to the volume of hot gas that needs cooling for the thing to work. Mechanical difficulties aside... it'd be an interesting thing to experiment.

[lorenz770]

you need a particular broaching tool to make such a cut on the inside of a cyclinder but the extra cooling due to surface area would be counted by much more friction.

[robinhooodvsyou]

How do you measure the efficiency of it ?

[darkj3am]

i wonder if u use a magnifier and sun instead of flame focusing it in to the hole:P

[FrankDeYoung]

Parabolic dish and a fresnel lense should make it work.

[arekkolisz]

do dupy i bez sensu

[daveroussel]

It looks like a solution for places that can't afford billions to set up a factory for modern engines....I realise probably is not the most efficient engine by today standards; but hey it runs, it is easy to build...and you can do useful work with it...

The design is not complicated, with very few moving parts, feasible to build with relatively simple tools and expertise...so here is my question:

What is the reason engines using simple designs like this are not built anymore ?

[KarlBednarik]

The energy conversion efficiency of the vacuum engine is lower than 0,5 %.

The energy conversion efficiency of the two-stroke internal combustion engine is higher than 20 %.

The two-stroke internal combustion engine needs no valves and is very simple.

The higher energy conversion efficiency of the two-stroke internal combustion engine comes from using compression.

The vacuum engine was used in the time between steam engine and petrol engine.

Today this machine is not any longer used.

[thiagov6123]

@KarlBednarik A two stroke engine has a simple design, but it requires very precise measurments. if a intake our outake port is placed 1/10 mm in any direction, the engine would no longer work. but i agree, internal combustion engines are much more effecient.

[DanJeffery07]

@daveroussel a stirling engine would be better

[MrUnknown24]

i still dont understand how it stays runnning

[KarlBednarik]

Part 1:

Moving from left to right, the piston sucks in the hot air.

It sucks in hot air only by the inertia of the flywheel.

The cylinder surface was serrated for cooling.

Cooling is need to make negative pressure.

[KarlBednarik]

Part 2:

It cools and sucks the piston only back to the center (or middle) of the cylinder.

Only during this time the valve is closed.

It is the negative pressure in the cylinder, which sucks.

The left dead center is reached only by the inertia of the piston and the flywheel.

During this time a small positive pressure is in the cylinder.

During this time the cold air is exhaust.

[WhichDoctor1]

Hay people! Check out the related videos tab, there are lots of vids on there of working engines like this.

Nice animation, very good explanation of how it works

[marshallaw2]

Do you have some manual about how to built this engine?

[marshallaw2]

Why the cylinder need to be serrate??

please, do you have MSN?

[KarlBednarik]

The cylinder surface was serrated for cooling.

Cooling is need to make negative pressure.

I have no MSN.

[rudolphna54]

cooling fins, like on a lawnmower.

[jeffroboy48]

yes i know it will a little candle will produce enough heat to push that little cylinder and because theres no real load it would be even easer and probably faster, but the people who made the other comments that the flam would be better off in other uses like boiling water for a steam motor or something... but this motor is neat never seen it before i think its cool

[KarlBednarik]

The flame of the candle does not push.

It is the negative pressure in the cylinder, which sucks.

[Helmholz42]

It's a neat little diagram of a Poppin engine!

[UlyssesBreckenridge]

errr... the heat from the flame would be better used for combustion... it's the 3rd law dude.

[tommysbrowncaddy]

I think you can do better than this.

[gena2013]

kids lisp

[nadeem5476]

i meant to say it could work as a prototype but it cant work as a huge engine from which you could produce any reasonable work and not just to move a flywheel only :)

[nadeem5476]

will not work

[nandoanalog]

it works.

[axke]

do you really think that candle or heater will warm up the air so quickly that it will PUSH the cilinder back?

and if so, wont the vlame go out when the air exits...?

i'm no pessimist, its really well thought out, great job, but i was just wandering about it... :)

[KarlBednarik]

It sucks in hot air only by the inertia of the flywheel. The flame is underneath the sucking in hole.

German Wikipedia, Vakuummotor, Carnot-Prozess, picture.

[MXpsycho52]

whats it used for

[KarlBednarik]

This machine was used in the time between steam engine and petrol engine. Today this machine is not any longer used.

[Mr572u]

So it sucks in hot air, it cools and sucks the piston back up to top dead center?

[KarlBednarik]

It cools and sucks the piston only back to the center (or middle) of the cylinder.

The top (or upper) dead center is reached only by the inertia of the piston and the flywheel.

During this time a small positive pressure is in the cylinder.

German Wikipedia, Vakuummotor, Carnot-Prozess, picture.

[minuoma13]

thanks sooooooooooooooooooooooooooooo­o much for this

[Djfresher123]

very nice:D

[impureiceman]

lloks like a bong

[impureiceman]

looks lik a cool bong

[you1my1]

شكرآ thank u know iknow how its work ^_^

[viking1au]

STIRLING ENGINE!!!

[IANME121]

No, it's a vacuum engine. A sterling engine has a piston and a displacer.

[salemcripple]

I get how they work now! I was looking at these other vids like WTF?!

[frogz]

nice!

now i understand how these work a bit better

[woodglueyou]

Dude, thank you sooooo much for this!