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Non-Uniform Motion Mechanisms Utilized in a Twin-Rotor Piston Engine

Non-uniform motion mechanisms (NUMM) utilized in a Twin-rotor piston engine (TRPE) are introduced. TRPE mechanism consists of two major components. One is energy conversion system (ECS), and the other is differential velocity drive mechanism (DVDM). DVDM is composed of NUMMs and ordinary gear train in this paper. NUMMs generate two non-uniform rotations with same pattern and different pace. Gear train duplicates the two rotations and causes the two rotors rotating with periodical oscillation.