WARNING!

Within a few months of my giving my new rotary engine concept a descriptive name of: Positive Displacement Turbine
and its Acronym (PDT) other counterfeit Sites began using the name also to describe their engines.

The PDT Engine is the only internal combustion that reduces Hydrocarbon emissions by more than 90%
and produces ultra high economy with performance,
possibly changing the course of our impending Global disasters!
This really is the Little Engine That Can!

PDT Engines Inc is based in Minnesota USA and uses three domains only:

www.pdtdesigns.com
www.pdt-engines.com
www.pdtengines.com

If you looking for the Original PDT engine developed by PDT Engines Inc. these three sights are are all there is folks!
Going to any other sight will probably mislead you or rip you off!