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Study of Combustion Chamber Deposit Formation Mechanism - Part 1: Characterization of Deposits
Technical Paper
968288
Sector:
Event:
Autumn Conference
Language:
Japanese
Abstract
Combustion chamber deposits were characterized by physical and chemical analyses, and their formation mechanism was discussed. The two types of deposits, derived from fuel and engine oil, could be distinguished from each other through the analyses of the deposits in an early stage of their formation. Fuel derived deposits were assumed from their chemical structures to be oxidation and polymerization products of aromatic fuel components in a quench area, and the validity of this assumption was verified by laboratory tests under high pressure condition.