Improved Turbocharger Durability for Successful Supercharging of Modern Uprated Diesel Engines
Keiichi Shiraishi
Acting Manager, Turbo Machinery Designing Section, Mitsubishi Heavy Industries, Ltd.
IMPROVED TURBOCHARGER DURABILITY FOR SUCCESSFUL SUPERCHARGING OF MODERN UPRATED DIESEL ENGINES
Koichiro Imakiire Masanori Kimura Keiichi Shiraishi
MITSUBISHI HEAVY INDUSTRIES, LTD.
Nagasaki Shipyard & Machinery Works Nagasaki, Japan
ABSTRACT
With the diesel engines being designed for increasingly higher output in recent years, turbochargers used in the supercharging of these modern uprated diesel engines are required to run at correspondingly higher speeds. Consequently, ensuring the improved durability of turbocharger components has become and even more important design consideration than hitherto to turbocharger manufacturers.
How to extend the service lives of the compressor impeller and thrust bearing among other turbocharger components is considered a pressing engineering challenge. The authors, therefore, have done a research focusing on this problem and oilier their view from what they have so far learned as herein capsulized.
