Fundamentals of Turbocharging

Turbocharging is used more widely than ever in internal combustion engines. Most diesel engines of all types and sizes manufactured today are turbocharged, and gasoline engines are increasingly so. Turbocharger technology, and often commercial turbocharger components, is being applied in many other fields including fuel cells, miniature gas turbine engines, and air cycle refrigerators. Fundamentals of Turbocharging is the first comprehensive treatment of turbochargers and turbocharging to be made widely available in the last twenty years. It is intended to serve as both an introduction to the turbocharger itself, and to the problems of matching a turbocharger with an internal combustion engine. The turbocharger is a highly sophisticated device. Undoubtedly, the key to its commercial success lies in achieving the correct compromise between performance, life, and cost. The operation of turbomachines is fundamentally different from that of reciprocating machines, so that the turbocharged engine has many complex characteristics, not all of them desirable. The means by which the advantageous characteristics are exploited to the full, and the technology required to overcome disadvantageous characteristics, are fully explained. The latter includes modern developments such as variable geometry, turbocompounding, and electric assist. Sample contents include: • Introduction to Turbochargers and Turbocharging • The Centrifugal Compressor Introduction • The Turbine • Mechanical Design of Turbochargers Bearings • Matching the Engine and the Turbocharger • Pulse Flow Performance of Radial Turbines