I remember seeing a blow torch,the type that used gasoline as a fuel.
It burned with a pure,clear blue flame.
The fuel was pressurized in the fuel tank and was vaporized as it left the nozzle and was ignited by the hot nozzle,which had been pre-heated by a fuel bowl underneath the nozzle.
Gasoline that is not pressurized does not burn that cleanly,so I think the pressurization of the fuel forces oxygen,as well as all of the other atmospheric gases into the fuel.The result is a cleaner burning fuel.
I emptied the fuel tank of the blow torch into a container and noticed that it was bubbling like a carbonated beverage.
I suggest :Feed highly pressurized,(with atmospheric gases) fuel instead of ambient pressure fuel into a internal combustion engine.
This will increase the available oxygen in the fuel,and make the atomizing of the fuel more efficient when the pressurized air/fuel hits the vacuum of the combustion chamber,like shaking a soda and popping the lid.
I think this principle should be tried in internal combustion engines to improve combustion and reduce pollution.
I know fuel pumps slightly pressurize the fuel,but not in the presence of atmosphere,and not at very high pressure.
Perhaps diesel engines could incorporate this at the pre-injector stage where the pressure is highest,and/or gasoline engines could use a small auxiliary pressure tank.
Of course,the engine control computers would need to account for the added oxygen content and adjust mixture accordingly.
I realize this may have already been explored and had no merit,but just in case:
I put this idea in the public domain so that it may be freely utilized by anyone,and not sequestered or claimed by any single entity.