1987-02-01

Tribological Systems for High Temperature Diesel Engines 870157

The U.S. Army Tank-Automotive Command is developing a future high power, low heat rejection military diesel engine. Performance requirements for the engine result in a predicted cylinder wall temperature of 560°C at the top piston ring reversal location. Thermal stresses imposed on the lubricant will therefore be unusually severe.
Midwest Research Institute is developing the tribological system for this engine. A new general concept for high temperature diesel engine lubrication has been formulated. Our concept includes advanced synthetic liquid lubricants, solid lubricant additives, and self-lubricating materials. The lubricants, additives, and materials that have been selected for initial laboratory and engine evaluations of the concept are reported here.

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