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Two of the approaches that should be considered to address this issue are vapor-
phase lubrication and self-lubricating materials or coatings.
phase lubrication and self-lubricating materials or coatings.
It is estimated that this project would require 5 to 10 persons working for 3 to 5
years.
years.
4.
Develop a fundamental understanding of cavitation damage and use the
understanding to improve design tools for fuel injectors and cylinder liners.
understanding to improve design tools for fuel injectors and cylinder liners.
This would supplement Item 4 under Materials and Item 2 under Coatings.
5.
Develop advanced experimental methods to continuously measure oil film
thickness at the piston rings and to monitor the condition of the oil in the
crankcase.
thickness at the piston rings and to monitor the condition of the oil in the
crankcase.
These techniques would be supportive of the computational efforts described
above.
above.
6.
Develop bench-top accelerated tests that would be predictive of full-scale
behavior of piston rings, bearings, and valve-train components.
behavior of piston rings, bearings, and valve-train components.
This is consistent with Item 3 under Materials, Item 5 under Coatings, and Item 1
under Lubrications.
under Lubrications.