Something I didn't see here

I have.
Pretty interesting gadgets. Throttle response is poor but livable.
For stationary engines they are great.

A design paid for by our tax dollars:
The Gengas Page

Pretty popular in Europe during WWII also in the Pacific Island areas with minimal fuel supplies

Sam

Yep,
pretty handy way to run an IC engine on wood, sawdust, sheep manure, coconut husks and shells.

Lousy throttle response but in a stationary engine they really shine

Here is a model designed with our tax dollars
The Gengas Page

Sam

You do not need coal/charcoal.
Sheep crap, wood, coconut shell, it's all good.

Sam

Plans provided at the posted link on page 1. designed specifically to be home built with minimal tools and supplies.
All bought and paid for with your tax dollars.

Sam