DEVELOPMENT OF THE McCULLOCH SUPERCHARGER FOR AUTOMOTIVE DIESEL AND GASOLINE ENGINES

Development, performance and description of a unique new centrifugal supercharger which provides large increases in engine power with present-day fuels. The variable speed V-belt drive with pneumatic control provides (1) maximum air pressure over a wide operating range, (2) protection against over-speed and (3) a lower speed economy range. Data is presented on a low cost, quiet, high-speed drive for which very little information had been available. Life testing and performance indicate it to be a desirable means of increasing power and economy in both diesel and gasoline engines without resorting to extreme engine speeds.