A Turbocharger for the 1990s

The large-bore engines of the 1970s and 1980s have seen tremendous amounts of technological improvements. The key buzzwords were: “Lower the emissions, and improve the fuel consumption.” As we move into the 1990s, we see dramatic improvements in specific outputs along with continued research to further improve emissions and fuel consumption. One of the keys to success will have to be the degree to which the industry responds with improvements in turbocharger performance. In 1985, Cooper Bessemer Rotating Products Division began a program to develop the turbocharger of the 1990s. This paper will describe the development of the CB turbocharger series from concept to early production.