in Winterthur. This was followed very closely in 1925, when Alfred Büchi successfully installed turbochargers on ten-cylinder diesel engines, increasing the power output from 1750 to 2500 hp. This engine was used by the German Ministry of Transport for two large passenger ships called the Preussen and . The design was licensed to several manufacturers and turbochargers began to be used in marine, rail-car and large stationary applications.

Turbochargers were used on several aircraft engines during World War II, beginning with the Boeing B-17 Flying Fortress