A Safe(r) HHO gas carburetor for small engines.

On my YouTube channel i build all kinds of neat things. Currently i have a recumbent bike and an adult sized trike collecting dust in my shed. I figure since i will be running an engine with the HHO generator i should hook it to something. With the front end from the recumbent and the rear end of the standard trike i will cobble together a microcar chassis to test out my engine. Using a 4 wheeled design will allow me to mount 4 large solar panels as a canopy providing shade and weather protection for the rider and provide almost limitless daytime range for the vehicle.

I may need to go up to a 5hp engine for the project. I think it will put out an actual 3hp on HHO providing me with plenty of power to push 250lbs along at 15 to 25mph. Since personal funds and donations to my channel and projects are low this will be a cobbled together mess but i will plan to build a better one later on.

After searching around for parts and materials i think i have figured out my cost for production. The full sized prototype may cost 4 or 5 times more than the unit for sale (which is cheap for R&D) but i want to keep the overall production price per unit to under $300 USD. After the full sized production model is made i think with the right vendors supplying parts in bulk i can push overall construction costs per unit down to about $200.

Now if i were to Kickstarter or GoFundMe something like this i could sell units at $250-$300 to start off. The $250 to $300 starting price (first batch buyers) would be ideal to help grow production and advertise the product.

In an ideal situation if i could get my production costs down to $100 a unit the remaining $150 per unit would go to help with shipping, research, warehouse space, and a small bankroll for the business (advertisement, media, etc). If enough people want to buy the product that could drive down my production costs even more.

This is just a thought with full scale production and sales way down the road but i hope i could make this product as affordable as possible.

The 26cc 4stroke engine puts out about 1 horsepower. I am expecting the engine to have less power running on HHO so i think i will limit my projects to 1/2hp. The real question is what to run with the engine. Some ideas i have for the motor are...

- Water pump. Could be very useful when gasoline is hard to find. When gasoline is in short supply to run a pump the small HHO engine could do the work. The HHO generator battery can be charged with a solar panel to store power so the generator can run the pump at night.

-Motorcycle/Scooter/Bike
On my YouTube channel i made a 2 stroke gas powered bike with a chainsaw engine of a similar engine displacement. I hear that the 4 stroke engines produce really good torque, run way cleaner, and have a better overall life expectancy than a 2 stroke. It may not be the fastest thing on the road but a small scooter with a large storage capacity battery could generate all the fuel it needs onboard and on demand. Every time the bike is parked the battery could be quickly charged with a high amp battery charger or with a solar panel. A bike shed could also be sold with this product to keep the scooter dry/clean and the shed roof could generate solar power for the scooters storage battery. This would make it ready to ride anytime.

- Run small mechanical items like farm or mining equipment.
There are various small engines on different farm, yard, and garden equipment. Any of these engines could be easily converted to run on HHO. These engines although getting better in technology still put out a large amount of pollution. Running these machines on HHO would help produce less emissions from the farm or garden.

-Clean Idle device.
If enough HHO could be produced safely to run a production car engine at idle it could be used instead of gasoline while the vehicle is idling. If the car's battery storage capacity is enlarged the vehicle could charge the battery bank up while driving with the HHO generator off. When the car is idling at a light or in traffic the fuel injectors could be shut off and HHO could be used to idle the vehicle.
If the battery bank is charged to 100% the HHO generator could provide additional fuel savings by adding HHO to the engine off the excess battery power while highway driving. If vehicles could idle on pure HHO pollution in cities would be greatly reduced during rush hour times and making the air overall cleaner. The power for the HHO generation is made when the engine is running on gasoline and has power to spare.

After i get the full scale prototype (mine is currently 1/5th scale) i will be able to test a few of these ideas in a real world applications. The clean idle device is something i am going to seriously look into. Basically it is taking wasted power and using it when you usually waste power. Could boost most vehicle's fuel economy by 20 or 30 percent.

Picked up a cheap PWM to control the HHO generator cells. This should cut down on heat and electricity usage. The one i am using was sourced online and rated at around 30 amps.

I have finally worked out a cell design that will allow the flow of water through the cell. The water and gas exit the cell at the top and the water is picked back up for return to the holding tank while the gas goes up into the line going to the engine. This will significantly reduce the amount of HHO gas waiting to be burned. With a little flashback control and the amount of gas stored in the lines drastically reduced will only provide a small pop if ignited.

BEHOLD! more of my MSPAINT skills! lol

Here is a diagram of the cell prototype. I think 3 of these units will run the engine just fine with gas to spare. Throttle can be controlled by the PWM.

With the current round plates (as shown in videos) i will need to generate at least 6 times the amount of fuel i am producing to make the engine run with on-demand HHO. Since the project is made from very easy to find parts i think this will not hurt my build budget too much. Currently i am searching for the perfect container for the generator cells and it has not been an easy find. I want something made of clear plastic and air tight.

Here are the build videos from my channel. I originally started to convert this engine for propane but then the internet gave me ideas. lol.

Carburetor build

HHO cell build

And the system test with a bit of fail.

I have messed around with the plate design of the mini HHO generator cells. I was thinking that large stainless steel washers would work but i need more surface area. I think the cells will be built out of thin stainless steel in a 7 plate configuration to minimize heat and get more production per cell. After i finish the first cell i will do a YouTube video measuring the production amounts.