Hi,
this was already mentioned in another thread,but as I have not yet seen
any english or German translation of the video narration,
please could somebody who understand japanese language give
us some explanation what was said over here ?

http://uk.youtube.com/watch?v=E1OWDcWoXHs

Many thanks.

Regards, Stefan.

This is very interesting, though it's not hydrogen on demand.

Here they are using a tank of compressed hydrogen and adding water along with the hydrogen directly into the combustion chamber.

However, this method does show you the virtues of water vapour going into the combustion chamber along with the H2 and O2 from standards high current electrolysers that heat up the water and/or pass through bubblers. 

In the past, some people have tried very hard to stop this water vapour going into the engine for fear of rusting it up, but this now clearly indicates that the water vapour can enhance performance.

I asked a friend of mine to have a look at this video.  He is an engineer and he speaks both Japanese and English fluently.  He had this to say:

OK.  I watched it.  It uses compressed hydrogen and when hydrogen is ignited, water mist is injected into the combustion chamber.  The water vapor expands with the heat of burning hydrogen and pushes the piston.  Exhaust is mainly steam and no CO2 at all.
 
The vehicle has given a permission by something similar to DOT to be operated on public streets.  It'll be tested for the next two years and the concept will be evaluated.  Development of entire system (i.e., passive and active safety mechanism for hydrogen engine) will be taking place upon successful completion of the evaluation.

water to engine will increase the power up to 100 %

Pese

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read this:
Performance and Technical information on carburetor jetting for all motorcycles.
Jetting considerations for motor performance factors
How do weather factors like altitude, temperature and humidity effect the jetting of a carburetor? Here are some simple rules that can help you fine tune the jetting to get the best performance from your motorcycle.

ALTITUDE
As you increase your altitude the octane requirement decreases 1-2 octane per 3000 feet elevation. This is because the density of the air is reduced or there is less air available for your motor to burn. The higher the altitude, the richer your motor will run, making it necessary to re-jet the motor in order to lean it out. The fuel volume remains the same and the air volume goes down. If you have a vacuum advance, as the altitude increases, the motor makes less vacuum and the air fuel ratio becomes richer due to the decreasing air to fuel volume.

TEMPERATURE
When the temperature goes up, the air density decreases, thus you have less air available for combustion and your air fuel ratio becomes richer. The same works in reverse. As the temperature goes down, you end up with more air per cubic foot, and without re-jetting your carburetor, the engine will run leaner.

AIR DENSITY
As the air density increases, your engine will lean out. As the air density goes down, the engine runs richer. Like driving up a mountain, at the top, the motor has less power because you have less air to burn.

HUMIDITY
When the humidity increases, octane requirements ease. The formula is something like... for every one gram of water increase per one kilogram of dry air the octane decreases by .25 to .35. WWII aviation engines used water injection and it worked well for a short time by cooling the cylinder temperature. As temperature goes back the effect goes away.

The bottom line is to make sure to pay very close attention to your jetting on cold, dry days with low humidity and when at sea level.


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  Posted 30 December 2007 07:35 AM  Hide Post
Yes, double is pretty close to the measured gains in mileage experienced by my machinist buddy on the 2 or 3 cars he did vapour carbs on.

Two tips:

1. Use a propane regulator for safety so you don't blow yourself to bits

2. Water vapour (steam) aspirated into the air intake will slow down those hot little gas vapour explosions into a nice manageable push that will maintain longevity to your engine parts. My friend who has done extensive personal testing said that 5% steam (by volume) works fine. I'm not talking about occasionally adding steam to your air intake, I mean while running on vapour, also add steam.

He started up normally (old style carb), then when the engine got hot, he used the heat to gassify (boil) the gasoline, feeding it into the carb and then cutting off the flow of liquid. When shutting down, he'd switch back to liquid gas then cut off the steam from the air intake and drive a few minutes to clear the water out.

I accept no liability for death, personal injury, or mechanical dammage relating to or arising from the info I've related here. My machininst friend is a very smart, mechanically experienced guy and knew how to safely boil gasoline without endangering himself or anyone else. While I believe that gasoline vapour is a great thing, it is potentially dangerous. If you proceed, do so cautiously, and only after thorough research into handling explosive gasses and expansion of flammable liquids into explosive gasses.

I've heard that in WW2, in Africa, a bunch of feds in black suits showed up and installed vapour carbs into US Sherman tanks to help fight Rommel. After Germany surrendered, the suits returned and removed the carbs.

No, I don't wear aluminum foil in my hat
-----------------------
Wasser + Treibstoff  DEUTSCH

http://www.presstext.de/cms/index/opm/1412.html benzin wasser
http://www.uni-koeln.de/pi/i/2004.102.htm benzin + wasser = ergibt: mehr Energie
http://www.uni-protokolle.de/nachrichten/id/35893/ benzin wasser
http://www.innovations-report.de/html/bericht-30636.html benzin wasser
 http://www.wtz.de/fuel-wat.htm

Versuch Benzin + 20 % Wasser.
Nissan Febr 2007.
Tankf?llung Benzin reicht 450km.
Mit 20 % Wasserzusatz wird die Reichweite  auf 700km erh?ht . D.h. fast doppelt da ja
Gesamtmischung nur 80% Benzin enth?lt

Video hierzu:

http://video.google.com/videoplay?docid=-7711785211600823269

It's not on-demand Harti.

It's compressed H2 in a gas cylinder most likely similar to LPG gas tanks - but stronger!

One of those stories that only tells half the tale, with the water side being hyped up to make it look amazing. Shame it didn't show the guy snorting H2 and adding that to the vehicle too!

 

No, I'm not guessing Harti.

It's just a matter of interpreting the info - it's all there on the video.

1. The video states that the vehicle runs on hydrogen and water (not just water and no mention of oxygen or hydroxy).

2. The video states that it runs on compressed hydrogen.

3. The video states that the vehicle does,150 miles or so, on a full tank of hydrogen.

If it was hydrogen-on-demand then the vehicle would be doing so many miles per tank of water, not per tank of hydrogen.

Perhaps a little wishful thinking Harti, eh!

would this car be running on Hydrogen on demand?

http://www.youtube.com/watch?v=NLKExuHlQMQ

Eden

@Farrah Day,
so because they did not show the compressed hydrogen bottle and showing only refilling water, this video then seems to be misleading...