what keeps someone from using natural gas carburetor?

[Creativity]

Has anyone done work, using a natural gas carburetor?

Do the systems not put out enough output? 

Does the HHO not work in that sort of carburetor?

Just curious?

I haven't heard about anyone using it,but i haven't searched neither.CNG system for hydrogen is quite reasonable choice,but be aware of what comes.

I use in my car LPG and a simple carburator for it (venturi)The problem of using of this setup is occasional backfire if the mixture is too lean.In that case i get a severe expolsion inside of an intake manifold and few times i had to replace the blown off airfilter(once i even got my injector loose hanging...).Keep it in good mixture range or reduce the voume occupied by exposive mixture is the lesson.Starting from generation III LPG Sytems get rid of a mixer(carburator) an went direction of injection=>better distributiona and less volume occupied by mixture in manifold.

Another point of attention is mixture distribution between the cylinders.The leanest cylinder will cause the back fire.In carburated engines a lot of design issues arise to obtain even mixture distribution.That's why most of the time carburated engine will have symmetric manifold.Injected engines have no problem with it and manifold is most of the time asymetric(fuel is injected in almost exactly the same dosis in every cylinder anyhow ).

Fitting of a CNG carburator on asymetric manifold will make a mixture distribution problem + a lot of explosive gases inside of a manifold.This would be  a problem if u had substantial amount of HHO.Manifold volume is in liters range,just imagine what bang would it cause to backfire.So this should be a warning is somone will try to supply an engine with substantial amounts of HHO(>30L/min).

However,for small amounts of HHO (on a level of 2l/min) HHO is so low percent of total gas flow of an engine,that it should not be a problem if engine is injected type.Concentration of Hydrogen would be simply to low to explode or even ignite.

[22350]

I haven't heard about anyone using it,but i haven't searched neither.CNG system for hydrogen is quite reasonable choice,but be aware of what comes.

I use in my car LPG and a simple carburator for it (venturi)The problem of using of this setup is occasional backfire if the mixture is too lean.In that case i get a severe expolsion inside of an intake manifold and few times i had to replace the blown off airfilter(once i even got my injector loose hanging...).Keep it in good mixture range or reduce the voume occupied by exposive mixture is the lesson.Starting from generation III LPG Sytems get rid of a mixer(carburator) an went direction of injection=>better distributiona and less volume occupied by mixture in manifold.

Another point of attention is mixture distribution between the cylinders.The leanest cylinder will cause the back fire.In carburated engines a lot of design issues arise to obtain even mixture distribution.That's why most of the time carburated engine will have symmetric manifold.Injected engines have no problem with it and manifold is most of the time asymetric(fuel is injected in almost exactly the same dosis in every cylinder anyhow ).

Fitting of a CNG carburator on asymetric manifold will make a mixture distribution problem + a lot of explosive gases inside of a manifold.This would be  a problem if u had substantial amount of HHO.Manifold volume is in liters range,just imagine what bang would it cause to backfire.So this should be a warning is somone will try to supply an engine with substantial amounts of HHO(>30L/min).

However,for small amounts of HHO (on a level of 2l/min) HHO is so low percent of total gas flow of an engine,that it should not be a problem if engine is injected type.Concentration of Hydrogen would be simply to low to explode or even ignite.

I am looking to apply this to a single cylinder engine, something like a generator.  200cc  it has a very small manifold.

i just wonder how much gas would be required to keep an engine that size running?

[Creativity]

I am looking to apply this to a single cylinder engine, something like a generator.  200cc  it has a very small manifold.

i just wonder how much gas would be required to keep an engine that size running?

well in that case u will probably have a hard time to find a carburator to fit onto small generator as this one :| i would just go for a simple venturi as in a first or second vacuum LPG instalation.Basically only a Venturi between the butterfly and air filter.

I won't go to deep in engine breathing factors as it is a science in itself.
Let say generator runs full load at 2500 rpm's(wide open butterfly full power,best efficiency condition).It is a four stroker so every 2nd rotations it sucks air.(2500*0,2/2)*0,7= 175 liters per minute of gases sucked in.0,7 is volumetric efficiency,normally is between 0,55-0,85 in a simple engine without wave tuning done,naturally aspirated and in some range of operation only(butterlfy fully open).

Let us neglate oxygen in HHO.4% of H2 is needed to start a flame in air.Very lean and low power though.In simple terms say it is in volume relation.
So something in order of 5+ liters out of 175 would have to be HHO,that is per minute.

[resonanceman]

I am looking to apply this to a single cylinder engine, something like a generator.  200cc  it has a very small manifold.

i just wonder how much gas would be required to keep an engine that size running?

22350


I really don't  think any one here has got far enough to  really think about   running a motor on just HHO.

A while  back  asked about  running  a motor on just HHO......

http://www.overunity.com/index.php/topic,4616.0.html

reply  #2  has a link  to  a  video  that might help you  estimate  what size   you will need .

gary

[22350]

22350


I really don't  think any one here has got far enough to  really think about   running a motor on just HHO.

A while  back  asked about  running  a motor on just HHO......

http://www.overunity.com/index.php/topic,4616.0.html

reply  #2  has a link  to  a  video  that might help you  estimate  what size   you will need .

gary

I was hoping that a 200cc single cylinder engine might be a little more attainable.  The youtube video isn't there anymore.

There are some interesting calculations.  I think that Dingel had something with separate production of o and h.