New Potential of Old Wankel-Type Machines

One must acknowledge that epitrochoidal machines with circularly moving evolvent gear systems (e.g., Wankel-type machines) are indeed ingenious. Is it possible that such mathematical beauty cannot deliver corresponding utility in market-relevant applications? I will discuss the potential of bi-angular piston machines and circularly moving evolvent gear systems in applied mechanics. Biangular machines have some important advantages. First, the compression ratio is defined by design and not limited by the geometry. This makes it possible to employ the more efficient Diesel process in such machines. Second, the vibration resonance of the rotating piston can be suppressed in contrast to the classical triangular Wankel machine. This contributes to significantly less wear and tear of the working chamber. “Classical” reciprocating and rotating piston machines can also profit from advantages developed through new perspectives on Wankel-type machines. One could say that all this is well-known and simply ancient history. Granted. But perhaps we can develop new solutions to old problems by viewing and discussing them from a different perspective.