Ideas I've known

[Retro]

LOW POWER COMPACT PLASMA FUEL CONVERTER
http://www.freepatentsonline.com/WO2001014702A1.pdf

Plasmatron-internal combustion engine system
http://www.freepatentsonline.com/5425332.pdf

Plasmatron-internal combustion engine system
http://www.freepatentsonline.com/5437250.pdf

Apparatus and Method for NOx Reduction
http://www.freepatentsonline.com/20070289291.pdf

Rapid response plasma fuel converter systems
http://www.freepatentsonline.com/5887554.pdf

Integrated plasmatron-turbine system for the production and utilization of hydrogen-rich gas
http://www.freepatentsonline.com/5852927.pdf

Homogeneous charge compression ignition control utilizing plasmatron fuel converter technology
http://www.freepatentsonline.com/20040099226.pdf

PLASMATRON FUEL CONVERTER HAVING DECOUPLED AIR FLOW CONTROL
http://www.freepatentsonline.com/WO2004094795A2.pdf

WIDE DYNAMIC RANGE MULTISTAGE PLASMATRON REFORMER SYSTEM
http://www.freepatentsonline.com/WO2005094335A2.pdf
http://www.freepatentsonline.com/WO2005094335A3.pdf

HYDROGEN AND CARBON MONOXIDE ENHANCED KNOCK RESISTANCE IN SPARK IGNITION GASOLINE ENGINES
http://www.freepatentsonline.com/WO2004111417A1.pdf

[eddywarston]

The Switzer/Syvecs flex-fuel conversions I’m talking about should be considered “neutral ground” here, because they focus on ethanol, rather than propane, but did you notice that their conversions are almost exclusively featured.