The Evolution of the Liquid Piston Engine development from where it started to where it is today.
Liquid Piston Engine is A simple, efficient, and elegant system, the X Engine only has a few moving parts, including the rotor (the primary work-producing component) and an eccentric shaft. Aside from ancillary parts such as injectors, fuel pumps, and oil pumps, there are no other additional moving parts.
This is a Rotary engine much different than the Wankel Rotary engine.

Episode of Liquid Piston Engine Here:    • See Thru Liquid Piston Rotary Engine ...