A wear theory for low speed diesel engines burning residual fuel
1962; Elsevier BV; Volume: 5; Issue: 1 Linguagem: Inglês
10.1016/0043-1648(62)90179-5
ISSN1873-2577
AutoresG. McConnell, the late W.S. Nathan,
Tópico(s)Metal Alloys Wear and Properties
ResumoThe inter-action of abrasion and corrosion has been studied in a single cylinder horizontal slow speed diesel engine burning residual fuel. Samples of lubricating oil extracted from the cylinder during running have been subjected to chemical, X-ray and spectrographic analysis. Information obtained from these analyses suggests that sulphuric acid produced during combustion is absorbed by the non-abrasive carbonaceous products of combustion and carried to the cylinder walls where it attacks and weakens the iron. The resulting debris is converted into abrasive material which helps to keep the wear process active. The extent of the acid attack is controlled not only by the quantity of acid formed in the combustion chamber but also by the quantity of carbon available for carrying the acid to the cylinder walls.
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