over existing designs. While the rotary mechanism is
inherently a simpler mechanical device with no
connecting rod and valve train compared to a
conventional piston engine, it does falter when sealing
the working fluid chambers. The conventional piston
engine sealing design has evolved over the last one
hundred years and can be considered a two-dimensional
problem involving circumfencial sealing and translational
movement. However, the sealing in rotary engines is a
three dimensional problem involving the rotary
movement and sealing at least two perpendicular
surfaces. The sealing between two perpendicular
surfaces generally results in the “simple” rotary
mechanism becoming “complex.”