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Old 09-22-2015, 06:09 PM   #11 (permalink)
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the best fuel vapour system I have seen so far:

patent Publication number US4862859 A,

https://www.google.com/patents/US486...hVmgXIKHRZ0CN4

this is an example with a carburetor. I like to see a system without a carburetor,

because I want to install it on a car from now not on 30 years old museum.

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Old 09-22-2015, 06:12 PM   #12 (permalink)
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I think when you can inject vapour only into your burning chamber, it would give me better fuel economy.
A lot of unburnt fuel goes out the catalytic exhaust.
I am not sure what type of engine you are considering, however if 99% of the fuel was vaporized without such a device, that would leave a potential improvement of 1%. I think I am being generous in my estimate.
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Old 09-22-2015, 06:32 PM   #13 (permalink)
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Are you sure about these 99 %? then it would make no sense to me testing a vapour system.

I red that a catalytic converter is mainly used as an emissions control device that converts toxic pollutants to less toxic pollutants by catalyzing a redox reaction.

and I thought !! the catalytic converter is also used for the unburnt fuel to burn/vaporise?
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Old 09-22-2015, 07:41 PM   #14 (permalink)
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You are basically correct. Emissions requirements are fairly restrictive, and catalytic converters can only deal with a certain amount of HC. The engine must be fairly clean already, or you will poison or cause a fire in your converter. That's why car manufacturers started implementing fuel injection along with catalytic exhaust converters. There are very few vehicles that had carburetors and catalysts both, it was a quick transition.
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Old 09-23-2015, 02:48 AM   #15 (permalink)
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Quote:
Originally Posted by holzhoechi View Post
a lot of unburnt fuel goes out the catalytic exhaust.
no it doesn't.
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Old 09-23-2015, 12:46 PM   #16 (permalink)
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Quote:
Originally Posted by holzhoechi View Post
I think when you can inject vapour only into your burning chamber, it would give me better fuel economy.
A lot of unburnt fuel goes out the catalytic exhaust.
this quote:
Quote:
Originally Posted by UFO View Post
Can you explain how you expect to get increased fuel efficiency by vaporizing your fuel if you understand it does not change thermal or combustion efficiency?
and your answer:
Quote:
Originally Posted by holzhoechi View Post
Are you sure about these 99 %? he said he was being generous, so, no! then it would make no sense to me testing a vapour system. it never made sense in the beginning.
I red that a catalytic converter is mainly used as an emissions control device that converts toxic pollutants to less toxic pollutants by catalyzing a redox reaction.
and I thought !! the catalytic converter is also used for the unburnt fuel to burn/vaporise? and? what does that have to do with economy? are you going to run your car off the catalytic converter?
do you really think most of us think you were born yesterday? have you no radio, tv, internet, newspaper, ect in Bukarest (can't even get that right, it's spelled Bucharest)? do you understand the nuance of the English language? there won't be an in-depth discussion of vaporizing fuel here, use google search and read away. sorry to be the a$$ but felt the need.
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Old 09-23-2015, 07:19 PM   #17 (permalink)
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Not all city names are spelled the same in every language. For instance, "Bukarest" is how the Germans would spell Bucharest. (And some people from that part of the world spell it "Bucaresti"--not sure if the Romanians themselves do or not.) And, if the OP is indeed from Romania, he/she is probably not working in his/her first language, so expecting him/her to get the nuances of English may be a bit much.

That doesn't make fuel vapor systems less of a scam, but you might want to cut people a break.

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Old 09-23-2015, 11:44 PM   #18 (permalink)
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...........That doesn't make fuel vapor systems less of a scam, but you might want to cut people a break.

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trolls, i feel, need no breaks. sorry.
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Old 09-24-2015, 02:18 PM   #19 (permalink)
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thanks some_other_dave for your post. I am indeed not from Bukarest/Bucharest/Bucuresti.
I am from Switzerland but working and living in Romania.
And my native language is also not english. So much to the "nuances"!!

I like to install/test a fuel vapour system on a car with my funds and resources available.

I have seen another very interesting example:
https://www.google.com/patents/US486...hVmgXIKHRZ0CN4

As I see it. It works by transforming heat from the engine coolant system and/or exhaust gases to the fuel mixture/vapourized fuel.
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Old 09-24-2015, 02:53 PM   #20 (permalink)
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If you cannot explain or understand why you think this will work, I guarantee it will not.

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