Development of Advanced High Strength Cast Alloys for Heavy Duty Engines
- Caterpillar Inc., Mossville, IL (United States)
Gray iron has been the primary alloy for heavy duty diesel engine core castings for decades. During recent decades the limitations of gray iron have been reached in some applications, leading to the use of compacted graphite iron in engine blocks and heads. Caterpillar has had compacted graphite designs in continuous production since the late 1980’s. Due to the drive for higher power density, decreased emissions and increased fuel economy, cylinder pressures and temperatures continue to increase. Currently no viable replacement for today’s compacted graphite irons exist at an acceptable cost level. This project explored methods to develop the next generation of heavy duty diesel engine materials as well as demonstrated some results on new alloy designs although cost targets will likely not be met.
- Research Organization:
- Caterpillar Inc., Mossville, IL (United States)
- Sponsoring Organization:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE)
- DOE Contract Number:
- EE0005980
- OSTI ID:
- 1367857
- Report Number(s):
- DOE-Caterpillar-EE-0005980
- Country of Publication:
- United States
- Language:
- English
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