Entrant Profile

Jack Ribbens

Location: Burlington, Vermont United States


Company: PREC


Profession: Business Owner/Manager


Inspired by: The concept was initially patented in 1937, but no working prototype was ever tested until last year. Applications for the design can be found in drones, lawn & garden equipment and marine outboards, thereby eliminating most two stroke engines, which the EPA desires. Automotive, multi-stages derivative designs may also be possible.

2016 Entries

Date Title Category Views Votes
06/29 Planetary Rotor Engine for Military Drones Aerospace & Defense 3150 0