# Tractor with gas?
**URL:** http://forum.driveonwood.com/t/tractor-with-gas/6182
**Category:** Woodgas Farming
**Created:** [December 12, 2021, 7:16am UTC](http://forum.driveonwood.com/t/tractor-with-gas/6182 "2021-12-12T07:16:28Z")
**Posts on this page:** 20
**Page:** 29
### Author:  [@Tone](http://forum.driveonwood.com/u/Tone)
#### Post date: [July 14, 2022, 2:19pm UTC](http://forum.driveonwood.com/t/tractor-with-gas/6182/561 "2022-07-14T14:19:19Z")
Mr. Steve, I think I understand your question about the translation, probably not the right translation in the part where I wanted to say that the narrower ring on the wall above the hot zone would create some empty space into which dirty pyrolysis gases and water vapor descend, well, from here they again have a free path to the mixing point just above the nozzle,… the venturi effect through the element above the nozzle sucks in gas,…
Two years ago I was a complete greenie in this area, but with your help and other friends, now I somehow understand the processes of gasification.
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### Author:  [@SteveUnruh](http://forum.driveonwood.com/u/SteveUnruh)
#### Post date: [July 14, 2022, 2:45pm UTC](http://forum.driveonwood.com/t/tractor-with-gas/6182/562 "2022-07-14T14:45:18Z")
You’ve done more than just basic minimal understanding, Tone.
You have advanced wood-to-shaft-power useability. That took studied, thought. Then metals cutting welding to bring to life. Then engine systems modifying, re-modifying. And risking to fail, exposed to peers.
(and I sit on my hands not to use “Mr” as a measure of respect)
Best Regards
Steve unruh
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### Author:  [@trikebuilder57](http://forum.driveonwood.com/u/trikebuilder57)
#### Post date: [July 15, 2022, 5:05pm UTC](http://forum.driveonwood.com/t/tractor-with-gas/6182/563 "2022-07-15T17:05:56Z")
Do you think this system would work for road travel at higher RPM’s?
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### Author:  [@Tone](http://forum.driveonwood.com/u/Tone)
#### Post date: [July 15, 2022, 5:33pm UTC](http://forum.driveonwood.com/t/tractor-with-gas/6182/564 "2022-07-15T17:33:39Z")
Hello Al, I wanted to make a gasifier for a wide range of operation, so it also has two types of nozzles and a lower one for cleaning ash and for cases of small need, well, after more than 60 hours of use, the gasifier has proven itself well, the drive of a small motor, light loads and even when driving at 2300 rpm with a 2.3 l engine. It seems to me that it produces the best gas at this heavy load.
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### Author:  [@trikebuilder57](http://forum.driveonwood.com/u/trikebuilder57)
#### Post date: [July 15, 2022, 8:45pm UTC](http://forum.driveonwood.com/t/tractor-with-gas/6182/565 "2022-07-15T20:45:11Z")
Thanks Tone. Maybe I ask the question wrong, do you think this would work on a truck? I am looking for a unit for 4.0L V6 engine with a plastic intake.
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### Author:  [@Tone](http://forum.driveonwood.com/u/Tone)
#### Post date: [July 16, 2022, 6:18am UTC](http://forum.driveonwood.com/t/tractor-with-gas/6182/566 "2022-07-16T06:18:09Z")
Al, for the 4.0 engine, I would make the diameter of the lower fire tube a little larger and with this the lower volume under the restriction opening would become larger and the surface for heat exchange would also be larger, I posted a sketch and description with a slanted grill and above, with one row of nozzles . Let me state that the gasifier weighs approx. 70 kg, or fully charged approx. 100 kg, the total weight of the system on the tractor is approx. 150 kg. Al, I understand your question, but the decision is yours, there are many different gasifier designs available,…
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### Author:  [@Tone](http://forum.driveonwood.com/u/Tone)
#### Post date: [July 17, 2022, 11:25am UTC](http://forum.driveonwood.com/t/tractor-with-gas/6182/567 "2022-07-17T11:25:48Z")
Curiosity didn’t give me peace, but I emptied the gasifier, a lot of charcoal and covered the bottom with charcoal and also brown pieces of ash… the lower nozzle is undamaged, obviously this construction works, maybe a more massive nozzle with a little bigger would work even better diameter, which would expand the glowing area a little more and thus reduce the temperature to prevent the formation of ash lumps.
[ ](https://www.youtube.com/watch?v=B4Xjf4UZ5y4)
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### Author:  [@Tone](http://forum.driveonwood.com/u/Tone)
#### Post date: [July 18, 2022, 7:08am UTC](http://forum.driveonwood.com/t/tractor-with-gas/6182/568 "2022-07-18T07:08:18Z")
I’m still thinking about improving the lower part in the grill area, I don’t want complicated solutions, only simple ones come into consideration. From the first day, when I started to deal with the production of gasifiers, I like the way of the Imbert grid area the most, namely that the restriction opening continues downwards, expands and is “immersed” in the coal. Thus, the flow of gases should partially exit downwards through the grate, but mostly it would raise ash and coal dust and rise up next to the restriction tube. If I use this idea in my system, I would get an empty space at the top of the grate, which would allow the charcoal and ash content to rise up and thus loosen,… I will find out when the gasifier is next emptied.
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### Author:  [@don\_mannes](http://forum.driveonwood.com/u/don_mannes)
#### Post date: [July 18, 2022, 1:00pm UTC](http://forum.driveonwood.com/t/tractor-with-gas/6182/569 "2022-07-18T13:00:21Z")
> [@Tone](#):
>
> but mostly it would raise ash and coal dust and rise up next to the restriction tube.
That is only because of your special nozzle coming up from the bottom, right? The regular imbert would not act that way, correct?
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### Author:  [@Tone](http://forum.driveonwood.com/u/Tone)
#### Post date: [July 18, 2022, 1:52pm UTC](http://forum.driveonwood.com/t/tractor-with-gas/6182/570 "2022-07-18T13:52:12Z")
Hello Don, with the Imbert construction, the coal and ash lean against the outer wall and cannot move sideways, so it is necessary to shake the grate so that the ash and fine coal falls to the bottom, another problem can also be the temperature being too low for the gasification of the lower coal and with the expansion of the gases to lift the material, and a small amount of air is introduced here and thereby gasifies the remaining coal, and the ash would rise and be discharged laterally through the grate, …
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### Author:  [@SteveUnruh](http://forum.driveonwood.com/u/SteveUnruh)
#### Post date: [July 18, 2022, 1:55pm UTC](http://forum.driveonwood.com/t/tractor-with-gas/6182/571 "2022-07-18T13:55:03Z")
To anyone viewing; go back above and see that what appears to be hollow air carrying double walls are not walls.
They are hollow bars forming his grate basket. Having vertical spaces between them.
Sure Tone you can try this.
Maybe. (True factory Imberts used thick cast high percentage chromium/nickel steel to endure the gas flow erosion though.)
Removing all of the spacing high melting point carbons from the mineral ash is your real situation. Either lower the temperature; or, fluff-stir the ash particles would seem to be your only ways to not clinker fuse form.
S.U.
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### Author:  [@Tone](http://forum.driveonwood.com/u/Tone)
#### Post date: [July 27, 2022, 6:34pm UTC](http://forum.driveonwood.com/t/tractor-with-gas/6182/572 "2022-07-27T18:34:49Z")
Change in the restriction opening, I work according to the plan, otherwise the boss will be harsh 😀
[ ](https://www.youtube.com/watch?v=hcC7INmbzvM)
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### Author:  [@Tone](http://forum.driveonwood.com/u/Tone)
#### Post date: [July 29, 2022, 7:25pm UTC](http://forum.driveonwood.com/t/tractor-with-gas/6182/573 "2022-07-29T19:25:55Z")
There is plenty of motor fuel, Fergie works almost every day, 90% wood 10 diesel fuel, he has done almost 70 hours on wood, now things are clear. But after changing the restriction opening, I have the feeling that the ash is retreating, the resistance in the gasifier is small, the gas is good and strong.
[ ](https://www.youtube.com/watch?v=TsUtrVq75Ks)
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### Author:  [@Norman89](http://forum.driveonwood.com/u/Norman89)
#### Post date: [July 29, 2022, 8:01pm UTC](http://forum.driveonwood.com/t/tractor-with-gas/6182/574 "2022-07-29T20:01:31Z")
Approximately how far above the grate is your center nozzle? It looks like it would keep the char right on the grate glowing hot
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### Author:  [@Tone](http://forum.driveonwood.com/u/Tone)
#### Post date: [July 29, 2022, 8:27pm UTC](http://forum.driveonwood.com/t/tractor-with-gas/6182/575 "2022-07-29T20:27:31Z")
Hello Marcus, the nozzle holes are about 5 cm above the bottom plate, also the extended part of the restriction opening reaches somewhere up to this plane. Here is a hot area, so the remaining fine coal is gasified, the metals would melt if they were not cooled by fresh air.
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### Author:  [@Norman89](http://forum.driveonwood.com/u/Norman89)
#### Post date: [July 29, 2022, 8:36pm UTC](http://forum.driveonwood.com/t/tractor-with-gas/6182/576 "2022-07-29T20:36:37Z")
So it is actually feeding oxgen right down on the grate, hence the reason for such small ash and complete burn?
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### Author:  [@Pelletpower](http://forum.driveonwood.com/u/Pelletpower)
#### Post date: [July 29, 2022, 8:50pm UTC](http://forum.driveonwood.com/t/tractor-with-gas/6182/577 "2022-07-29T20:50:44Z")
A joy to watch, thanks, drive on drva
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### Author:  [@Tone](http://forum.driveonwood.com/u/Tone)
#### Post date: [July 29, 2022, 9:00pm UTC](http://forum.driveonwood.com/t/tractor-with-gas/6182/578 "2022-07-29T21:00:10Z")
That’s right, imagine this nozzle surrounded by fine coal and ash, the engine creates a vacuum and sucks gases through this material, while fresh air enters in the middle, thus maintaining a high temperature, which is a condition for coal gasification (coal is gasified at a higher temperature than 650°C). All the resulting gases must also make their way through this dense hot zone.
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### Author:  [@JO\_Olsson](http://forum.driveonwood.com/u/JO_Olsson)
#### Post date: [July 29, 2022, 9:25pm UTC](http://forum.driveonwood.com/t/tractor-with-gas/6182/579 "2022-07-29T21:25:22Z")
What Joep said - a joy to watch 👍
You’re having way too much fun, Tone.
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### Author:  [@Wayne](http://forum.driveonwood.com/u/Wayne)
#### Post date: [July 30, 2022, 12:18am UTC](http://forum.driveonwood.com/t/tractor-with-gas/6182/580 "2022-07-30T00:18:09Z")
Thanks Tone .
I always enjoy a tractor ride with you . 😀
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