The McMaster Rotary Engine http

Harold McMaster obtained his M.S. in Physics in the 1950s at The Ohio State University and served as a professor of physics there for years to follow. He filed many patents, and his corporate ventures range from solar energy to glass making to engines.

In 2001, Ohio State awarded McMaster an honorary doctorate. He passed away in September of 2003, but the many companies he founded continue, such as McMaster Motor.

The McMaster rotary motor is based on spherical geometry. The current two-cycle power plant has the same displacement volume as a 200-horsepower engine yet with only one-tenth the weight. Its displacement does not directly imply the horsepower it can put out, however. McMaster designed this engine to combust hydrogen, a fuel which, under combustion, puts out a lot more energy per unit mass than gasoline, but the density of hydrogen is much less than gasoline. And, hydrogen is not stable as a liquid unless it is very cold. Less than 77 K (liquid nitrogen). However, like the Quasiturbine design, the McMaster motor can potentially have very high compression ratios.

Also, like the Quasiturbine motor, the McMaster motor is inherently balanced and centrally designed, i.e., there is no necessity for balanced crankshafts, inline blocks, or "V" designs.

The largest advantage of the McMaster Rotary engine is that it has very few moving parts, increasing its reliability. The concept of the McMaster Rotary Engine is genius, as it is simple, compact, and elegant.