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My first post in this great place.
Great post about this 100 MPG technology.
Lean burn has always be one way of getting the millage increased but several limiting factors have held this technology back from normal street cars.
1. The atomization of the fuel was never perfect enough
2. The Spark Power was too little.
The realization is twofold, either to atomize the fuel better OR to increase the spark power.
My experience is largely in the area of Spark Power and I have created many ignition systems over the years, to actually increase spark power dramatically.
A typical ignition system has around 50 Watt of raw spark power, of which usually only 5% to 10% is used to ignite the mixture. The most powerful ignition systems I have worked with, created close to 1 Million Watt.
If you look at the newest BMW engines with direct injection, they kept a low wattage ignition, but increase the atomization of the fuel through direct injection. With this system they are able to run stable and efficient at Lambda 1.4 or even higher.
Increasing the ignition power on these cars will even allow for more efficiency.
Ulf
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