Fuel injection at supercritical fuel conditions.

Aero · Post by **Aero** » Tue Mar 09, 2010 5:09 pm

That is, within the fuel injectors, bring the pressure and temperature up above critical conditions for the fuel, then inject it into the cylinder to mix with air and burn.

Transonic claims that its fuel injection system increases fuel efficiency by 75% while cutting emissions in half.

http://gas2.org/2010/03/08/transonic-cl ... ency/[url]
Is this really new?

MSimon · Post by **MSimon** » Tue Mar 09, 2010 10:45 pm

The efficiency claims are suspect. Very suspect.

Aero · Post by **Aero** » Wed Mar 10, 2010 1:14 am

I don't know - It sounds to obvious to me, but then ...
http://www.technologyreview.com/energy/24701/?a=f
Just what are they basing the improvement on? Improved over what basis? The best available? A particular selected engine model? Need more info.

Notice the claim went from 75% improvement this morning to 50% improvement this evening. I think there might be a little shine on the numbers.

MSimon · Post by **MSimon** » Wed Mar 10, 2010 1:33 am

Aero wrote:I don't know - It sounds to obvious to me, but then ...
http://www.technologyreview.com/energy/24701/?a=f
Just what are they basing the improvement on? Improved over what basis? The best available? A particular selected engine model? Need more info.

Notice the claim went from 75% improvement this morning to 50% improvement this evening. I think there might be a little shine on the numbers.

I think they are getting a 50% improvement in transportation efficiency over spreading gasoline on the road and tossing a zippo into the puddles.

KitemanSA · Post by **KitemanSA** » Wed Mar 10, 2010 6:46 am

Diesels tend to be significantly more efficient than otto cycles for many of the reasons stated in the areticle. This seems to be a diesel with otto fuel.

...95mpg at a steady 50mph in their test car. I'd like to see their "test car".