Increase gas milage

[sandman]

so i was wondering if anyone has a HHO gas or Browns gas generator in their car to increase milage.

I am currently doing research into it (so i thought i would ask u guys), some say fact some say fiction, but i think im going to try it on a small lawnmower engine before i try it on my car just to see if it works.

Im just looking to see if anyone has actually used one.

[jon_89]

I have one but have yet to put it in my car.

[sandman]

ok sweet, do you plan to soon?, and im glad to see im not the only one that wants better gas mileage

[jon_89]

I first have remake it because I think me electrodes are to far apart. When I put them in a bowl of water it creates alot of bubbles. I think I will first try it on a lawnmower like you said.

[Matheusilla]

I built a rather large one for someone I know. With the volume of gas it makes it would probably run a car engine at idle (no gasoline). They do work, however, I am a little weary of hooking it to something worth any value because of hydrogen embrittlement, which may or may not exist in such an application.

[jon_89]

That is why I will try it on the mower that I got for free. I have also read about compressed air being used but I am still reading on that one.

[sandman]

hmm, i think that this would not occur because i thought it was only a danger in pressure applications, also a thin layer of oil should be present blocking the gas from touching the cylinder wall anyway, isnt there?

i could be wrong thats just a guess

Edit: the problem that we'll have with the mowers is that all the fuel adjustment will be manual by tearing the carburetor apart and adjusting the needle, but a car would do this automatically with the O2 sensor

[jrrdw]

hmm, i think that this would not occur because i thought it was only a danger in pressure applications, also a thin layer of oil should be present blocking the gas from touching the cylinder wall anyway, isnt there?

i could be wrong thats just a guess

Edit: the problem that we'll have with the mowers is that all the fuel adjustment will be manual by tearing the carburetor apart and adjusting the needle, but a car would do this automatically with the O2 sensor

You will have to use a older mower with a adjustable carb, most newer (smaller HP 3.5/3.75) mowers don't have adjustable carbs anymore.

The carbs that are adjustable have exterior adjusting needles. Fuel pressure is another problem you will need to overcome, and having no leaks. Leaks cause drops in fuel pressure will change engine performance.

The engines will still have and use the factory lubication systems, as long as you can make thje engine run!

Model the end fuel system off of a fork lift running propane.

[Matheusilla]

I suppose you've got a point about the embrittlement; It still worries me though, I have a new car.

About the needle valve in the lawn mower, I don't think it's gonna work that way. With gaseous fuels an engine needs more of a flow meter rather than a needle valve designed for fluids. Another thing about that is when we run HHO into a car's engine, most likely it is fuel injected, not carburated. Where fuel injection is concerned, the fuel needs of the engine are met by readings from all the pertinent sensors (oxygen, MAF, intake/exhaust temperature) which the computer reads and administers the correct volume of gasoline. To better understand how a gaseous fuel is fed into an engine, have a look at natural gas or propane burning engines. Jrrdw is on the right track

[sandman]

my thought track was tho, the lawn mower cant cut back its fuel usage compared to its output, so to to this you would have to manually cut back on the liquid fuel when u add the gaseous fuel to actually see a performance increase. But, im looking up propane engines right now.

[Gippeto]

@ Metheusilla

You mentioned that you built one which you figure could run a car at idle. Do you have any current and voltage measurements at this output rate?

I've looked into this before, and just can't get past the fact that you must put in "X" amount of electricity to get the hydrogen.

Then you are running an engine with the hydrogen which is (on a good day) maybe 30% efficient.

That engine is moving the car down the road, and generating electricity to replace that used in the first place. (further efficiency losses)

Considering that you lose energy at each phase, how is it supposed to self sustain?

If anyone has a good answer, I'd sure like to hear it.

[psycix]

Gippeto is right, do your science and chemistry and you will see that the energy coming out of the hydrogen is the same amount of energy, getting freed when it burns.
However, this would be he case if you have a 100% efficient engine and electrolysis machine. Subtracting the energy "losses" due to inefficiencies, you will only lose energy and thus waste fuel.

[sandman]

but your alternator always runs so you have electricity that the engine is not using, this should make use of said energy

[MaxuS the 2nd]

What is a Brown's gas Generator?

[/sounding like an arse]

[sandman]

its an electrolysiser that dosent separate the O2 and H2 gas, it makes HHO (Browns gas)