# Sawmill Gas Generator
**URL:** http://forum.driveonwood.com/t/sawmill-gas-generator/5126
**Category:** Charcoal Gasification
**Created:** [February 28, 2020, 4:50am UTC](http://forum.driveonwood.com/t/sawmill-gas-generator/5126 "2020-02-28T04:50:55Z")
**Posts on this page:** 11
**Page:** 1
### Author:  [@Serg](http://forum.driveonwood.com/u/Serg)
#### Post date: [February 28, 2020, 4:50am UTC](http://forum.driveonwood.com/t/sawmill-gas-generator/5126/1 "2020-02-28T04:50:55Z")
I make large industrial gasifiers, but there was a need to create a gas generator for the smallest gas generator, 0.22 liters in volume and 3 kW on gasoline.
> **[Генератор бензиновый Hyundai HDD 3600 купить в Києві с гарантией | Цены |...](https://santeho.com.ua/generator-benzinovyi-gewilson-hdd-3600-hyundai)**
>
> Генератор бензиновый Hyundai HDD 3600 купить оптом и в розницу в Києві ✅ По лучшей цене от производителя ✅ Недорого ▶️ Доставка ➜ Всегда скидки и акции - 325-5464.
I already did a project on a 663 kW engine on wood gas (you can see here [Tarif.gazogen.ru](http://Tarif.gazogen.ru)). The day before yesterday there was the first successful launch and a 3 kW engine on gasoline was able to pull out a 1 kW grinder and a 0.4 kW vacuum cleaner. We tried to connect welding 2.5 kW worked with drawdowns. Not pulled. I did not change the spark plug in the engine - I stood on gasoline and did not change the ignition timing. On such engines, this is difficult to do, but I deal with it. I think if I remember the lead angle, welding 2.5 kW will pull.
[https://youtu.be/okZtjUgOoQ0](https://youtu.be/okZtjUgOoQ0)
Not many people know how important a properly made gas and air mixer is. For this engine, I designed and manufactured a mixer, as seen in the photo.
I also make an electronic carburetor that will control the air supply in automatic mode. Here’s a video.
https://www.youtube.com/embed/2N-Z8B9qI3w?feature=oembed&wmode=opaque
I have a question. Has anyone already seen similar air management systems. Those that I found are very expensive and are used on large industrial equipment. And who sells small systems that catch alpha?
---
### Author:  [@r\_wesseling](http://forum.driveonwood.com/u/r_wesseling)
#### Post date: [February 28, 2020, 6:07pm UTC](http://forum.driveonwood.com/t/sawmill-gas-generator/5126/2 "2020-02-28T18:07:28Z")
Hello Sergei,
Some people here have made a simple, mechanical mixture control system using pressures.
Search: Vacuum Automixer Project
See: [http://forum.driveonwood.com/t/spiral-path-heat-exchangers/3657/82](http://forum.driveonwood.com/t/spiral-path-heat-exchangers/3657/82)
Welcome to Drive On Wood!
Rindert
---
### Author:  [@nvvizm](http://forum.driveonwood.com/u/nvvizm)
#### Post date: [February 28, 2020, 6:26pm UTC](http://forum.driveonwood.com/t/sawmill-gas-generator/5126/3 "2020-02-28T18:26:22Z")
Sergey, look at my version of building a gas generator for a small engine.
Forum topic " [Library / Carburetor Controller](http://forum.driveonwood.com/t/library-carburetor-controller/144)"
> [@Library / Carburetor Controller](http://forum.driveonwood.com/t/library-carburetor-controller/144/9):
>
> if you had a reostat to give it a positon sense it could produce a perfect gas carb hook it to a lembra probe??
Возможно будет полезным эта информация.
---
### Author:  [@pobrien603](http://forum.driveonwood.com/u/pobrien603)
#### Post date: [February 28, 2020, 9:52pm UTC](http://forum.driveonwood.com/t/sawmill-gas-generator/5126/4 "2020-02-28T21:52:43Z")
I have a good bit of experience with gasification for a corn dryer or boiler. You don’t have to worry about the ash or dust from those gasifiers. Also the tar is not a problem as it usually gets burned by the burner refractory. You will be used to making a larger quantity of burnable gas with a dryer. THIS is the place to learn about making tar free gas for an engine. Principles are the same you just have to make gas in closer parameters. The reduction zone parameters are more important. Best of luck on your projects.
---
### Author:  [@trigaux](http://forum.driveonwood.com/u/trigaux)
#### Post date: [March 4, 2020, 5:18am UTC](http://forum.driveonwood.com/t/sawmill-gas-generator/5126/5 "2020-03-04T05:18:45Z")
> [@Serg](#):
>
> Not many people know how important a properly made gas and air mixer is. For this engine, I designed and manufactured a mixer, as seen in the photo.
Hi Sergey
Does your air gas mixer work on the principle of a venturi?
the air enters at high speed and generates a slight vacuum on the central pipe which transports the gas?
do you manage to mix better (50% air / 50% gas) with this design?
Thierry
---
### Author:  [@Serg](http://forum.driveonwood.com/u/Serg)
#### Post date: [March 5, 2020, 10:13pm UTC](http://forum.driveonwood.com/t/sawmill-gas-generator/5126/6 "2020-03-05T22:13:15Z")
Yes venturi. Yes, it mixes well with this design.
---
### Author:  [@BillyAlabama](http://forum.driveonwood.com/u/BillyAlabama)
#### Post date: [March 5, 2020, 10:21pm UTC](http://forum.driveonwood.com/t/sawmill-gas-generator/5126/7 "2020-03-05T22:21:00Z")
Hello Sergei, welcome to the site. Billy
---
### Author:  [@Wayne](http://forum.driveonwood.com/u/Wayne)
#### Post date: [March 5, 2020, 11:09pm UTC](http://forum.driveonwood.com/t/sawmill-gas-generator/5126/8 "2020-03-05T23:09:04Z")
Hello Sergei.
I too would like to welcome you to the Drive on wood site .
Thanks
Wayne
---
### Author:  [@trigaux](http://forum.driveonwood.com/u/trigaux)
#### Post date: [March 6, 2020, 1:18am UTC](http://forum.driveonwood.com/t/sawmill-gas-generator/5126/9 "2020-03-06T01:18:28Z")
> [@Serg](#):
>
> it mixes well with this design.
do you mean that you no longer need to modulate (manually) the restriction of the air intake to obtain a stoichiometric mixture?
Thierry
---
### Author:  [@Serg](http://forum.driveonwood.com/u/Serg)
#### Post date: [March 6, 2020, 6:25am UTC](http://forum.driveonwood.com/t/sawmill-gas-generator/5126/10 "2020-03-06T06:25:12Z")
You still need to regulate the air a little. With different gas compositions and different loads, it is still necessary to adjust the air supply. Yesterday we finished the electronic shutter which will do this automatically. We’ll test, take off - I’ll post the video. Existing systems on the market are expensive and for a large industry. I want to create a small one for cars and small generators.
---
### Author:  [@Serg](http://forum.driveonwood.com/u/Serg)
#### Post date: [March 6, 2020, 6:26am UTC](http://forum.driveonwood.com/t/sawmill-gas-generator/5126/11 "2020-03-06T06:26:57Z")
