I've been thinking...

An engine needs oxygen and gasoline to make the explosion in an engine, well the air around the earth is only 18% oxygen, sooo what would happen if i would spray pure oxygen into my engine? what would happen?

 

Your car runs lean and explodes. Same principle as running nitrous without any fuel enrichment.

 

its called a welding torch...would you put an oxy -acetylene torch on one of your pistons

 

Think about why they call blast furnaces "basic oxygen furnaces"... The higher the oxygen content, the higher the flame temperature and the faster the burn... things get out of hand very, very quickly.

 

Piston melting is what would happen.

 

nitrous is much cheaper than pure oxygen...

medical grade oxygen is the most expensive.

 

fourth of july firework. woohoo!

 

There might be a chance of the oxygen reacting with hydrogen and exploding. I'm not sure what the chances are, but I know it's possible and that it's an extremely exothermic reaction with violent results.

It's the same basic concept/reaction used with Hydrogen fuel powered engines and space shuttle booster rockets used to get the shuttle into space.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by IN VTEC &raquo;</TD></TR><TR><TD CLASS="quote">It's the same basic concept/reaction used with Hydrogen fuel powered engines and space shuttle booster rockets used to get the shuttle into space.</TD></TR></TABLE>

The only thing that has anything to do with this kind of technology is VTEC.. what else can launch a rocket into space? Nothing.

 

Little green men with ray guns.

 

An interesting example of Oxygen creating a deadly disater is the Apollo Launchpad Testing Distaster.

The capsule was PRESSURIZED with pure oxygen. The had to pressurize the capsule to simulate the pressure differential of the capsule being outside of the atmosphere. Had the amount of oxygen been the same as the normal necessary operating pressure and volume in space, the disaster may not have happened.

Here is the reason:

Velcro in a normal atmospheric environment is not highly flammible or explosive, but it will burn, but not that easily.

However when Velcro is put in a pressurized high oxygen content atmosphere, Velcro become violently flammible and combustible.

The Apollo capsule had an incredible amount of Velcro throughout the cabin. A electrical short burned through wire insulator and onto the Velcro. The fire cascaded throughout the capsule as things burned violently in the pressurized oxygen environment.

As the temperature rised, the pressure increased, further locking the capsule door (the pressure helps seal the door, the more pressure, the more seal).
The rescue crews and probably the astonauts had diffuclt time with the door due to the increased pressure created by the fire.


Now with your car:

You don't want the gasoline exploding or burning out of control, you want smooth predictible BURN. This is why higher octane gas is usually used in race cars.
These engines use higher amounts of fuel, oxygen and pressure. The don't want this reaction to be en explosion, they want a controlled burn. The higher the octane the more controlled the burn is, and less likely to explode.

By adding oxygen to your 87 octane gas, and not adding more gas, you will make the gas more explosive, boom there goes your engine.

Assuming you could get enough pressure and oxygen, you can run a car off of any fuel source. Look at multifuel cars.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Vanilla_Gorilla &raquo;</TD></TR><TR><TD CLASS="quote">I've been thinking...

An engine needs oxygen and gasoline to make the explosion in an engine, well the air around the earth is only 18% oxygen, sooo what would happen if i would spray pure oxygen into my engine? what would happen?</TD></TR></TABLE>

The atmosphere is about 21% (molar or volumetric) oxygen, not 18%. I'd like to keep it that way.

Adding oxygen to your engine would be equivalent to running nitrous oxide. The difference is that nitrous oxide can be easily liquefied under pressure for easy storage, while oxygen (O2) cannot. You would need a cryogenic dewar to store liquid oxygen. Oxygen is also quite expensive.

Just like nitrous oxide, adding too much oxygen would result in detonation and catastrophic engine failure.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Dogginator &raquo;</TD></TR><TR><TD CLASS="quote">Adding oxygen to your engine would be equivalent to running nitrous oxide. </TD></TR></TABLE>

Let me go a little deeper. Nitrous oxide is N2O so for each molecule of Nitrogen you get a 1/2 molecule of Oxygen. Multiply by two and for each molecule of oxy you get two of Nitrogen. That would make the "synthetic air" mix created when nitrous oxide breaks down 33% oxygen.

Therefore a little richer in oxy then our air on earth depending on the amount of natural 21% oxygen air ingested with the nitrous oxide. So to a degree, nitrous does raise the oxygen partial pressure in the combustion chamber. However I'll bet that nitrous oxide system only raises the oxygen partial pressure about 3 percent under the best of conditions, say up to 24% oxygen. That still allows nitrogen to do its moderating effect and provide a smooth burn... most of the time.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BigMoose &raquo;</TD></TR><TR><TD CLASS="quote">

Let me go a little deeper. Nitrous oxide is N2O so for each molecule of Nitrogen you get a 1/2 molecule of Oxygen. Multiply by two and for each molecule of oxy you get two of Nitrogen. That would make the "synthetic air" mix created when nitrous oxide breaks down 33% oxygen.

Therefore a little richer in oxy then our air on earth depending on the amount of natural 21% oxygen air ingested with the nitrous oxide. So to a degree, nitrous does raise the oxygen partial pressure in the combustion chamber. However I'll bet that nitrous oxide system only raises the oxygen partial pressure about 3 percent under the best of conditions, say up to 24% oxygen. That still allows nitrogen to do its moderating effect and provide a smooth burn... most of the time. </TD></TR></TABLE>

Actually, N2O can force more than the 33% O2 equivalent into the combustion chamber. The reason is two-fold.
1) The evaporating N2O cools the intake charge.
2) A single mole of N2O effectively is 1 mole of N2 and 1/2 mole of O2. This alone introduces the same O2 content as one mole of 50% (molar or volumetric) O2 air.

If you really want to get crazy, spray liquid N2O directly into the cylinder.

 

Ok, lets go to the limit on this question, and I will let you answer first. No ambient air. Only nitrous oxide and iso-octane in the chamber. You predict the % O2 and %N2 in the chamber, once the nitrous oxide disassociates.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BigMoose &raquo;</TD></TR><TR><TD CLASS="quote">Ok, lets go to the limit on this question, and I will let you answer first. No ambient air. Only nitrous oxide and iso-octane in the chamber. You predict the % O2 and %N2 in the chamber, once the nitrous oxide disassociates.</TD></TR></TABLE>

I agree with 33% molar ratio of N2 to O2 from N2O. I just normalized it to atmospheric air to compare apples to apples; 1 liter (STP) N2O introduces the equivalent of 0.5 liter (STP) of O2. You would need 2.38 liters (STP) of 21% oxygen (volumetric or molar) air to supply the same oxygen content. My point is that the actual amount of oxygen is more as important as the percentage of oxygen in the chamber.

 

Agree! Well said, now I understand your approach. Thanks!

 

Since we have like 20 bottles of oxygen laying around, I tryed this with a weed eater motor about 3 years ago.

I ran a hose off the regulator on the bottle and held it in front of the carb with the weeder at idle. Tank did have a flashback protector on it. The weeder instantlly went to rpms that I have never heard out of a weeder before in my life, and this is with the weeder on idle yet. So after I let the motor came back down to idle after what seemed like 20,000 RPM's I had to try it again. Weeder idled fine yet and no knocks or pings yet, reved up fine with the throttle yet. SO I held the throttle open about a 1/4 and gave it the hose again! I held the hose at the carb with it at 1/4 throttle for about 6 sec. at what seemed like a good 30,000 RPM (sounded like a O.S. Max RC motor). Took the hose away and motor ran fine.

My cousin was there when I did this. We werein just aw of the rpm's and laughing that it worked.

Now On a car, not so much. Maybe it could work with just minimal amount (.010 NOS jet) of oxygen might work with much much tunning but I am sure it would melt a piston in seconds.

Funny stuff!

 

a buddie of mine is planing on doing this to his car by addin a hole into his intake tube and just running the line into that then running it low all the time after he gets it going ill let you know how meany sec.s it last lol