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100% Vapour System.
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Edostar Offline
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Post: #1
100% Vapour System.
I have a certain amount of experience of Fuel Vapour from using it as part of the Hydrocarbon Cracking System* which I've ran for a couple of years now on a series of vehicles.

I recently viewed a video clip on YT which contained some interesting observations regarding running internal combustion engines entirely on gasoline vapour and I think that anyone serious about building a pure fuel vapour system should see it.
http://www.youtube.com/watch?v=17xVBQ_U2yw

Leaving the very good recommendations for re-machining the camshaft aside for the moment; the following sketch reflects a couple of the main points outlined in the clip.

[Image: Scheme_zpsae2acea6.jpg]

The drawing incorporates the HCS into the system and whilst this is not essential to running an engine 100% on vaporised gasoline; it is a significant upgrade which will have the effect of increasing the speed of the burn and thus the overall efficiency of the cold vapour system.

*Hydrocarbon Cracking System thread on this forum:
http://www.fuel-saver.org/Thread-Hydroca...ing-System


Dan.

Download HCS Installation files.
(This post was last modified: 04-19-2013 05:34 PM by Edostar.)
04-17-2013 10:03 PM
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Google7 Offline
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Post: #2
RE: 100% Vapour System.
that is awesome
04-21-2013 05:15 PM
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hhofox Offline
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RE: 100% Vapour System.
Hi Dan, I see that you have started a fork off the HCS thread. Kudos! That throttle body looks special though -since it has dual plates (butterflies). The setup, in theory, should work, but it takes a lot of fine tuning to do so, and it would not work the same on engines that need to have oil mixed into their fuel supply.
Take a look at the following link -maybe you will be able to flesh out your design a bit more. This guy uses an approach similar to HCS to go 100% vapour.
http://www.youtube.com/watch?v=WrsFYMP4BaE

Also, this guy does similar things with easy to find parts.
http://www.youtube.com/watch?v=SZQCSKEUAmg

Have fun!
(This post was last modified: 04-22-2013 08:05 AM by hhofox.)
04-22-2013 08:04 AM
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rpatzer Offline
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Post: #4
RE: 100% Vapour System.
It looks like this system will run on an older carb auto but not on FI cars.
04-22-2013 09:21 AM
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Edostar Offline
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Post: #5
RE: 100% Vapour System.
HHOfox.
HCS (as you know) is just a Hydrogen on Demand system that cracks hydrogen from fuel vapour.
Its advantage over HHO is that it takes no power from the engine so all gains are pure gains.
It does offer significant improvement in burn efficiency and therefore MPG but nothing like the potential of a pure gasoline vapour system.

Heated fuel systems risk activating the resins added to gasoline specifically to defeat high-mileage carbs and cold vaporisation tends to vaporise the lighter elements first and the heavier elements later so consistency is difficult to achieve.
The bubbler is simple and produces vapour in line with demand and would work perfectly if we could redesign the fuel or at least distill it to remove the unwanted elements.

The throttle body on this scheme is an adaptation of the one shown in the Backyard Physicist clip that I give in the first post of this thread.
His doesn't appear to contain a venturi though and if so; I don't see how the fuel vapour gets drawn in from the bubbler in line with engine revs.

The butterflies are linked so once the ratio between them is set; it remains that way henceforth at all revs.
The top one governs the air mixture and the bottom one the engine speed.

This is not such a specialist spare part as most downdraft carbs already contain all the elements of this throttle body.
At the top is the choke flap (our air mixture flap) and at the bottom is the throttle flap.
In the middle is a venturi that pulls the liquid fuel into the throat.
If the fuel vapour were fed into the carb's liquid fuel inlet; it would be drawn through the [redundant] float chamber and into the throttle body and operate like the one in my drawing.
The only very minor modification would be to block the float chamber air vent.

raptzer.
This would plug right onto a regular carb engine but an injection engine would require a slightly more extensive conversion.
However; the lure of 100 MPG+ might tempt someone to try it.

Dan.

Download HCS Installation files.
(This post was last modified: 04-27-2013 10:17 PM by Edostar.)
04-22-2013 04:32 PM
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