Transonic Combustion's core technology is highly proprietary and, thus, reviewable only under NDA Agreement, however, here are a few key points.
The technology achieves ultra-high efficiency by operating conventional reciprocating piston gasoline engines at ultra-high compression ratios and incorporates very precise ignition timing and carefully minimized waste heat generation. A key aspect of the technology is a revolutionary new type of fuel injector. This injector can be supplemented by advanced thermal management, EGR, electronic valves, and advanced combustion chamber geometries.
Along with operating conventional engines with high efficiency on gasoline, this technology can utilize fuels on the basis of their chemical heat capacity largely independent of their octane or cetane ratings. Thus, economical, highly functional mixtures of renewable plant products can be utilized which are not practical in either spark ignition or conventional compression ignition engines.
Transonic Combustion engine technology offers the promise of dramatically improving near term gasoline engine efficiencies for a reduction in greenhouse gas emissions and reduced dependence on foreign oil, with the long term promise of operating on renewable, zero net carbon bio-fuels at an attractive cost per mile.