Accession Number:

ADA143971

Title:

Evaluation of Service Lubricants and Metals Correlation of Bench Tests with Engines.

Descriptive Note:

Final technical rept.,

Corporate Author:

IMPERIAL COLL OF SCIENCE AND TECHNOLOGY LONDON (ENGLAND) LUBRICATION LAB

Personal Author(s):

Report Date:

1984-06-01

Pagination or Media Count:

63.0

Abstract:

The object of the work, to devise a test that enables engine lubrication to be correlated by the High Frequency Reciprocating HFR test apparatus, recently developed in the Lubrication Laboratory of Imperial College, has been successfully completed. Oils whose performance were evaluated in the full scale 240 hour diesel scuffing test, 6V 53T, have been tested. Calcium detergent was found to have a considerable effect on wear. Most of the additives tested gave a surface film characterised by a high electrical contact resistance, ECR, which may reach 106 ohms. When it is present, there is very little or no wear. It is broken down mainly by temperature but also by load, with consequent increase of wear. The project was primarily concerned with the influence of lubricants on engines, so standard engine liners were used. Some test, however, clearly demonstrated the importance of liner metallurgy and liner finish. This subject would repay further study. The importance of combustion atmosphere is briefly discussed.

Subject Categories:

  • Metallurgy and Metallography
  • Lubricants and Hydraulic Fluids
  • Reciprocating and Rotating Engines

Distribution Statement:

APPROVED FOR PUBLIC RELEASE