The Development of a Thermo-Oxidation Engine Oil Simulation Test (TEOST)

Format:

Conference/Event

Author/Creator:

Florkowski, Dennis W., author.

Conference Name:

International Fuels and Lubricants Meeting and Exposition (1993-10-18 : Philadelphia, Pennsylvania, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1993

Summary:

This paper concerns a bench test developed to simulate the effect of engine operating conditions on the oxidation and deposit-forming tendencies of engine oils. The so-called Thermo-oxidation Engine Oil Simulation Test (TEOST) is carried out under temperatures and other environmental conditions identified as being significant in the internal combustion engine. These parameters can be readily modified to reflect different aspects of deposit conditions and/or different forms of the mechanical design of reciprocating engines.The most important aspect of the TEOST is the separation of the oxidation process into the two aspects believed to be present in the engine, (1) the preparation of oxidation precursors in the so-called Reactor' representing the engine sump and other moderately heated areas of oil exposure, and (2) the Depositor' representing those areas of the engine where temperatures are such that the completion of the deposit-forming oxidation mechanism can be induced. Many variations of time, temperature, oil flow rate, cycling rate of oil temperature, and condition of oxidation precursor formation were investigated. These ultimately led to a test protocol showing particular promise regarding the evaluation of modern engine oils

Notes:

Vendor supplied data

Publisher Number:

932837

Access Restriction:

Restricted for use by site license