CONCLUSION

The Hybrid Engine concept represents a notable advance in the search of internal combustion engines more efficient.

This engine have the advantages of the piston reciprocal conventional engine as well as the rotary engine (Wankel), because of incorporating a stable seal, be efficient in thermodynamic and volumetric, to have a hard structure, and be free of valves train and masses reversion motion.

These advantages make an engine economic in construction as well as in maintenance and fuel consumption. Because of not incorporate valves, reduces the pollutant emissions, being able to use hydrogen as fuel.

ACKNOWLEDGEMENTS
The author wishes to thanks to all that have contribute with its commentaries and opinions on this work.