Looking for help building a Gas Vapor system

[racprops]

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[racprops]

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[racprops]

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[RustyLugNut]

You may not think so, but it is obvious from their run data and photography.

Do you know what pure gasoline vapor looks like? I do. So does Transonic.

[racprops]

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[RustyLugNut]

Originally Posted by racprops

That is not what they said:

"Transonic Combustion or TSCi™; this combustion process is based on the direct injection of fuel into the cylinder as a supercritical fluid. Supercritical fuel achieves rapid mixing with the contents of the cylinder and after a short delay period spontaneous ignition occurs at multiple locations."

"direct injection of fuel into the cylinder as a supercritical fluid" does not read a vapor, it may have converted to vapor once in the cylinder..

So again all those 4/6/8 high pressure lines running super hot fuel still scare me.

The gasoline is injected as a super-critical fluid. The science of super-critical fluids is that the diffusion rate is so rapid, evaporation is complete before combustion can occur. Look at the photographs of their injector versus a regular injector. Within a few millimeters of injection the droplet plume disappears. Compare this to common injection where the cloud is visible all across the combustion chamber.

Are you familiar with diesel injectors or direct gasoline injectors? Those are high pressure situations that are handled safely, by millions of vehicles, on a daily basis. I've seen low pressure ( 60 psi and less ) cause just as much fire issues as these high pressure systems. Your fear is unfounded. Carburetors have far more fire hazard than fuel injection.

Are you familiar with the old white gas camping stoves? The one where you pour in the gas into the fuel tank, pump it up to pressurize it and then light the burner? The feed line runs through the burner to heat and vaporize the fuel so that it hits the combustion zone and instantly ( for all intents and purposes ) mixes and burns. No fear of fire here. I let my 8 year old son ( at the time ) operate it safely.

One of the problems of current GDI engines is the fine soot they produce as late injection within the cylinders results in a lack of time to vaporize and properly combust the fuel mix - thus the particulates. The same is true in diesels. The Transonic engine could meet Tier II Bin5 levels of emissions without after treatment. That proves vaporization before combustion.

[Hersbird]

again liquid gasoline never ever burns, never ever is ignited, as long as it stays liquid. It has to change to a vapor state is burn and gasoline is constantly giving off vapor even when freezing cold. All burning of gasoline in a cylinder, in a bucket, wherever is the burning of gasoline vapors. This is true of all flammable liquids, they all have to transition to a gaseous state to burn. So when it turns to a gaseous state is all that is different. Sounds like the Transonic method is just getting it close to gaseous so that it flashes to a gas and ignites from multiple areas of the combustion chamber rather than a central spark. The vapor carb idea is to get it completely gaseous before even entering the combustion chamber, again this is really easy with something designed to go gaseous at a lower temp like say Propane or natural gas. It would be harder with something like JP5 what the navy uses because it is much safer to store and take bomb hits without the whole ship going up. Gasoline has been specifically designed to pump and store liquid, and then flash to gas in the combustion chamber of a normal ICE.

[racprops]

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[racprops]

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[RustyLugNut]

Originally Posted by racprops

And I think my vapor before injection/feeding will do just as much and a lot cheaper, and perhaps retrofit-able to many cars and trucks.

Rich

. . . in comparison to the Transonic engine.

You will not have the high compression their engine utilizes. We all know higher compression gives greater efficiency.

You will not have the reduced pumping losses of their engine since you will need a throttle since your system will inject outside the combustion chamber limiting how lean you can run.

You will not have the ability to set your parameters to provide rapid combustion thus your system will have to ignite before TDC losing more pumping losses ( negative work ) and thermal losses.

Your system will need considerable after treatment to meet emissions.

In other words, your system will provide about 15-30% efficiency gain compared to their 50%.

Can you market that? You've already said you cannot. So what is your market going to be?